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Troubleshooting common Internet cafe machines

Internet cafes in the machine with a common household as a machine, always a problem from time to time the article is to summarize a few of the more common Internet cafes machine failure, hope to help Internet cafes.
1. I use Internet cafe machines Windows 2000 Pro operating system, installed in Vientiane wonderful housekeeper 876 version management software, today suddenly unable to enter the system, and the display appears Vientiane Manager: Winlogon.exe application error. Yesterday also normal use, today suddenly happen. to Vientiane second housekeeper, uninstall and reinstall, still is the mention
Failure Analysis:
In the Windows 2000 operating system, Winlogon.exe is a network logon process. Our machines in Vientiane management software installed, all client management software and services in Vientiane under the control of end use, if we can not properly log on to the billing software the service side, we can not use any resources of the machine. So, failure has been very obvious solution, first check the network cable is not Link. In particular, network cards, Ru Guo poor contact, then this failure will occur. because the machine had no trouble this might be a bad contact card, open the machine and re-install what network card, failure to lift the results.
Failure Comments:
As long as we fully understand the role of Winlogon.exe, then the fault can be easy to get a solution. Engage in Internet cafes for us to maintain, and learn something, must be careful not to do so little knowledge. At the same time, this issue, the official site in Vientiane have to solve approach. this troubleshooting, the maintenance staff would like to have confused the issue complicated, and the results resolved to go a roundabout.
2. My operating system is Windows XP Professional version, run some games or programs, the system prompted \. Click OK, the program exits.
Failure Analysis:
MSVBVM60.DLL is Microsoft’s VB runtime files, some applications or games using Microsoft’s VB language technology needs the support of the library. This problem may be caused by loss of the file, we can go to no such trouble computer through the \Tip:
Can also be directly downloaded directly to install a package, click here to enter the download page.
Failure Comments:
Windows 98 already installed 了 VB runtime files, so this failure does not occur. For some games plug-in process, generally is used to write the VB language, when they are running VB runtime files, so when some run Game Bot, Ye Hui there is missing file prompt.
3. I am in the computer’s BIOS settings, has floppy shield, but when I enter the Windows 98 operating system, in the \property, in the Advanced menu, you can see \Failure Analysis:
Although the basic settings in the computer’s BIOS, the floppy drive will be blocked. However, the settings in the BIOS, there is an option, no ban. 进入 BIOS settings, find the BIOS of the Advanced Settings options, find the \Win95 \Failure Comments:
This is to say, not a failure, just as we set the BIOS not proficient. So we doing technical maintenance, must not let the knowledge be considered unimportant small point!
4. I wonder MU running machine game, when the dialog box to switch to the input of Chinese characters, the screen kept flashing. Machine configuration is C 2.4 of the CPU, 256MB RAM, Intel 865 motherboard, graphics card is HASEE Fx5200U, the operating system is Windows 2000. all the normal running of other games in the MU in the character screen if you do not enter the situation and will not appear flashing.
Failure Analysis:
In the running game when the other networks were normal, ruled out hardware failure. Carefully examined the operating system and no problems, would not be a graphics driver version the problem? Because when installing the driver, downloaded from the drive home The latest drive, the reason will not be driven. Finally, to drive home, download a few different versions, one version of the normal result of use. because finally found. and then test drive this card in other games effect, all normal.
Failure Comments:
All of the board of the driver, not the latest is the best. Be sure to select a suitable driver. As our hardware factory at different times, it is proposed to select the hardware drivers, it is best after a period of testing, in order to avoid unnecessary trouble.

the proper use of the hard disk with bad sectors Repair
Hard to use for a long time, there would have been a variety of problems, but the hard disk \and after a period of three insurance how should we do? The following is the author of some maintenance to maintain the hard disk, and I hope can help you repair the hard disk.
1, hard disk with bad sectors threatened
Hard disk damage is divided into two logical bad sectors and physical bad sectors, the former is soft bad sectors, software is usually caused by improper operation or use of, available software repair; the latter is the real physical bad sectors, it shows that your hard drive track to generate a physical injury, only by changing the hard disk partition or sector to address the use of. any of the following conditions may have bad sectors of your hard drive:
First of all, you open, run or copy a file operation when the slow hard disk, and there may be a long time operation is not successful or the performance of the long dead \ring, or simply Windows prompted \Second, each boot, Scandisk automatically run the disk is definitely the hard drive that you need to fix the important errors, such as bad sectors. You run the program successfully passed the time as not, that certainly has bad sectors hard disk. Of course, Although it can be scanned, but a red \Third, the computer starts, the hard disk can not boot using a floppy disk or CD-ROM drive letter can be seen after the start but can not operate or operation in this area is wrong, or simply can not see the drive letter, indicate that there may be a bad sectors on the hard disk. manifestation of the process, such as Power On Self Test, the screen prompts \not found \Finally, the computer crashes occur during normal operation or \Second, hard disk damage repair
Scandisk disk scanning procedure is to solve the logical bad sectors hard disk most commonly used tools, and our common Format command can not be played on any hard disk damage repair, and this point we need to understand. If the hard disk of the bad sectors, we can Windows system environment, in the \start checking \disk to do a full scan processing, and on possible amendments to the bad cluster to do automatically. Secondly, in DOS mode, the hard disk has bad sectors, the computer starts normally run Scandisk will automatically scan and bad clusters to black red The \; A: \Others, such as Norton toolbox NDD \about.
If the hard disk, there can not repair physical bad clusters or bad sectors, we used some of these bad sectors disk software is divided into an area separate and hidden, they could then extend the service life of your hard drive.
Method 1: If a 4.3G hard drive in the 2G Department has serious physical bad sectors, not carry on with Format Format, Scandisk or NDD test pass it, but can the normal partition. Get a partition formatted software Smart Fdisk, After the computer with the boot disk into the drive letter A:, run the software implementation of the file SFdisk.EXE; then delete (DEL) the original partition, calculate the bad sectors on the hard disk location. If this case, first create 1990M basic partition and activate it after a quick format, and then dispose of about 50M then bad sectors in the logical partition, then the remaining hard disk space as a logical zone with a quick format feature to quickly format; final About 50M of bad sectors then the area where the deletion (DEL) off it wants. and then restart, a serious physical bad sectors on the hard drive was quickly repaired, after the heads no longer read those who have been deleted in the District of bad sectors.
Method 2: Use Windows system comes with Fdisk partition. Such a 1G hard disk, formatted to 10% can not pass, then press Ctrl + Break to force an end, run the DOS Fdisk a 90M partition for the C drive, 20M and then create a logical drive D, then the remaining 800 E. M out of a logical drive and then run Fdisk Format E:, to 10% if the grid when they look obstruction, then use the Fdisk and then a 88M of E disk, 10M F-disk, the remaining 790M as the G drive. to continue to repeat the above until you complete. then run Fdisk to 10M of the D, F plate removed, then the rest is not a good set of bad sectors.
Method 3: Similarly, using PartitionMagic, DiskManager other disk software can accomplish this task. Such as PartitionMagic partition software, first PartitionMagic4 the \location on the hard disk, and then under the Operations menu, select \by Hide Partition menu item to achieve. This could have serious bad sectors to ensure the normal use of the hard disk and remove the system frequently to read and write bad sectors to expand the area of bad sectors.
The system shows \, is our fault more headaches, most people tend to arise such as discarded hard disk failure. In fact, a reasonable number of disks using software to screen out sector 0 scrapped, and replaced with a sector can play a life-giving effect, This software, such as Pctools9.0 and NU8.
Method 1: We start with Pctools9.0 an example for illustration. A 2.1G hard disk such failure, with plate after restarting your computer run Pctools9.0 directory DE.EXE file. Then select the main menu in the Drive Select , entry into the election after the Drive type Physical, selected by a space, then Tab key to switch to the Drives key, select the hard disk, and then return to the main menu after OK Enter. open the Select menu will appear Partition Table , selected after entering the hard disk partition table information. The drive has two partitions, locate the C zone, the partition is started from the hard disk 0 cylinder, then, would be a partition of the Beginning Cylinder 0 into 1 on it , save and exit. Restart the computer and press the Del key to enter COMS setting, run the \/>
Method Two: Norton NU8.0 also good to use. Such as a 1.28G Track 0 bad disk failure occurs, enter the NU8 toolkit directory, run the main program NORTON.EXE, and may first select \the hard disk boot sector, partition table and other information to back up. then select \SIDE To 0-63, clusters CYLINDER for the 0-255, Sector SECTOR for the 1-63, the master boot record and partition table information should be in the 0 side 0 sector column 1. we need to do is to the C drive start sector from sector 0 face 0 column 1 to column 1 1 0 surface sector, moving the cursor can be manually modified. Also needs to be said is that changes in values to specific situations. Quit after saving the last restart computer, you can use the Format command to format the hard disk normal use. require special attention, the reconciliation must not be reused after the hard drive Fdisk under DOS partitioning tool such as re-partition of its operation, so that it may also change the start of the hard disk cylinder.
If the above tips do not bear fruit, then have to use the board’s own procedures or the hard disk drive manufacturers with low grid presented with the disk format programs such as low-DM, LFormat and other low-level format the hard drive completely processed, it can drive re-order rule out the possibility of some bad sectors.
Third, the proper use can reduce the incidence of bad sectors
It says so much, a little belated, but the proper use of the hard disk is a good place to reduce hard disk damage, the best way to improve hard drive lifetime.
1. Hard at work can not be suddenly shut down
When the hard disk start work, usually at high speed among the half-way if we suddenly turn off the power, can cause severe friction between the disc head and damaged hard drive, so to avoid sudden shutdown. Shutdown panel must pay attention to instructions on the hard disk the light still blinking, and only in the light stops flashing, hard to read and write before they shut down the computer after the power switch.
2. To prevent dust from entering the
Damage to the hard disk of dust is very large, this is because the severe dust environment, the hard disk is easy to attract dust particles in the air, it accumulated in the hard drive’s internal circuitry components, the heat will affect the electronic components distributed, making the circuit components of the temperature rise, resulting in leakage or burned components.
Another dust may absorb moisture, corrosion of the electronic circuit inside the drive, resulting in a number of unexplained problems, so the dust size is small, but the harm should not be underestimated on the hard drive. It is necessary to maintain environmental hygiene to reduce the air humidity and dust content . Remember: ordinary computer users not able to open the hard drive cover, or dust in the air hard drive, the magnetic head for reading and writing operations scratched disc or head.
3. To prevent overheating
Temperature on the life of the hard disk is also influential. Hard work will produce some heat, there is the use of heat. Temperature to 20 ~ 25 ℃ is appropriate, too high or too low will cause the crystal oscillator clock frequency change. temperature will result in failure of hard disk circuit components, magnetic media will be caused by thermal expansion effect records an error. the temperature is too low, the air in the water will be condensed in the integrated circuit components, causing a short circuit;
Humidity is too high, the electronic components may be adsorbed surface layer of water film, oxidation, corrosion of electronic circuits, resulting in poor contact, or even short-circuit, but also the magnetic medium magnetic changes, resulting in reading and writing of data errors; humidity is too low easy to accumulate a large amount generated by the machine rotation electrostatic charge, which burned CMOS circuit, dust and damage to the head, scratch disk slice. room humidity within 45 to 65% is appropriate. attention to air dry or regular to the system power-up, relying on their own machines, steam heat will evaporate. Also, try not to drive near strong magnetic fields, such as speakers, speakers, motors, radio, mobile phones, so that the data recorded in the hard disk damaged due to magnetization.
4. To regularly organize the information on the hard disk
In the hard disk, frequently create, delete files will produce many fragments, debris accumulated more in the future to access a file in, the hard disk may take a long time, not only with reduces efficiency, but also may Sunhuai track. As Here, we should always use the Windows 9x system disk defragmenter on the hard drive for consolidation, and then finished the best use of hard disk repair program to fix those problems track.
5. To regular hard disk antivirus
The virus attacks now range more widely, while the hard drive as the computer’s information storage base, often the preferred target of their attacks.’s April 26 each year so that every computer user is a lingering fear, Bizhedanwei on several hard drives on brutal attacks over CIH. Therefore, in order to ensure the safety of the hard disk, we should pay attention to the latest antivirus software, virus killing, keeping in mind the important data on the protection and regular backups.
6. Be careful when using hand drive
Daily computer maintenance work, re-use hand drive is a frequent thing. Perhaps the most common things that most can not attract our attention. In fact, with the hand learned the hard disk or slip will so hard, \① to gently, do not bump or collision with other hard objects;
② can not casually touch his hand hard on the back of the circuit board. This is because the climate was dry, the body usually with a static, in which case touching the hard disk on the back of the circuit board, the human body static electricity may damage the hard disk electronic components, leading to the hard disk can not function properly.
Therefore, we should be in use holding a hard disk drive 两侧 seize and avoid Yu Qi back Didianluban direct contact. Some of Lei Xing’s hard drive will be in the outer layer of protection film Shang Bao, Ta addition Jubei vibration function, but also Ba circuit boards to protect them, so that we can not worry about static electricity of the.
7. Try not to use hard drive compression
We used the hard disk space is not big, always trying to save hard disk space, such as the common measure is through Doublespace, Drvspace order to compress hard disk space. But when the compression gradually increasing volumes of documents, this method will have a very clear shortcomings, it is hard to read and write data greatly slowed. As hard drive rapid development of technology, disk capacity also steadily rising, now popular on the market in 20G hard disk space is about, is the kind of hard to appear before the situation of not enough hard disk space, so we have no need to use a hard disk compression technology.
8. At work can not move the hard disk
Hard drive is a high-precision equipment, work surface, the floating head in the disc height of only a few microns. When the hard disk is read-write state, the event of a large shock, it may cause the impact head and the disc, cause damage. so do not moving in the operation of computer. in the hard drive installation and removal process should be more careful, hard disk movement, transportation is prohibited bump, the best protection with the foam or sponge packaging look to minimize vibration.
9. Use plastic or rubber to eliminate hard drive noise
Relatively high speed in the hard cases, if the drive is fixed to the metal bracket or placed no time, once switched on, the hard disk, there may be more intense vibration, over time, it may damage the hard drive heads or scratch disk track. To eliminate noise, we can use the hard disk installation of screw holes near the four corners, with a large elastic texture, good rubber band to the hard disk suspended in the chassis; If the hard disk is horizontal, we can also use the flexibility and size appropriate rubber mat or rubber mat on the hard disk the following columns in order to achieve the purpose of shock absorption. Here we note that we use a rubber band suspension should select good quality and there is a large stretch silk wrap kind, the best choice for use on apparel fabrics coated with rubber bands, rubber bands to avoid accidents after failure. moderately taut rubber band, and pay attention to the installation process do not make rubber bands by

Common Trouble mm disk failure disk failure
Chapter One, the definition referred to here for example
disk failure, said two aspects: one hard drive, optical drive, floppy drive and the media and other failures; other The first impact on the hard drive, optical drive, floppy drive access components (such as motherboard, memory, etc.) caused by the fault.
two possible fault phenomenon
1, hard drive
1) hard drive abnormal sound, noise large;
2) BIOS can not correctly identify the hard disk, hard disk light is light or not light, hard disk drive interference of other work;
3) can not partition or format the hard disk capacity is not correct, the hard disk has bad sectors, data loss, etc.;
4) the logical drive letter is missing or changed, accessing the hard disk error;
5) hard disk data protection fault;
6) hard disk failure caused by third-party software ;
7) hard drive protection card failures.
2, floppy disk drive
1) floppy drive light does not shine or Always, floppy drive can read the disks sound great;
2) Floppy Drive is zoned disk, floppy disk can not eject or insert, etc.;
3) can not be formatted floppy disk, floppy drive does not read the disk, floppy drive, or interfere with other devices or applications, the normal work;
4) in a floppy drive can not write the document in another to read a floppy drive;
5) floppy drive letter is missing or changed, when the floppy access error;
6) floppy drive installation is not in place.
3, CD-ROM drive
1) drive more noise than large, designated disk drive, optical drive tray can not eject or close, and poor ability to read the disk drive;
2) CD-ROM drive letter is missing or changed, the system can not detect CD-ROM, etc.;
3) access drive crash or when error, etc.;
4) CD-ROM drive does not work cause media.
three components may be involved in
hard drive, optical drive, floppy drive and their settings, disk interface on the motherboard, power supply, signal line .
Fourth, determine points / order
1, maintenance of pre-prepared
1) disk data line;
2) the corresponding disk test software;
3) virus scanning software. < br> 2, the hard drive
1) Environmental inspection
A. Check the hard disk connected:
a) hard drive ID jumpers are correct, it should be connected to the cable position on the match;
b) connect the hard drive data cable is connected wrongly or reversed;
c) hard drive cable is damaged or hard creases. can replace the cable inspection;
d) whether the type of hard drive cable and hard drive technical specifications in line;
e) hard disk power supply is properly connected, should not be too loose or not inserted in place of the phenomenon.
B. Hard visual inspection:
a) hard drive circuit board components Are there deformation, discoloration, and phenomena such as fracture defect;
b) hard disk power outlet of the needle is connected with Weld or loose soldering phenomenon;
c) power-up, the hard disk light is not lit when the self-test or Always; whether the normal hours of work lights shining;
d) after power up, to listen to the sound functioning of the hard drive is normal, should not be an unusual sound and excessive noise.
C. Check the hard drive power supply:
a) supply voltage is within the allowable range, whether the fluctuation range of the extent permitted by such.
2) failure to check points
A. recommended minimum system software under check and determine whether the failure phenomenon disappear. This will rule out due to other parts of the hard disk drive or the impact of access.
B. Parameters and set the check:
a) hard disk system can be correctly identified, identification to the hard disk parameters are correct; BIOS on IDE channel transfer mode settings are correct (preferably set to \Note that the nominal capacity of the general unit mark by 1000, while in the BIOS and the formatted capacity is displayed as a unit by 1024, between 3% to 5% of the gap. Another formatted capacity usually less than the capacity shown in BIOS). hard disk capacity is based on functions provided by the system (such as with a key recovery), should be much smaller than the actual capacity, reduce the value of the See user manual instructions;
c) Check whether the current technical specifications of the motherboard support the use of hard disk technical specifications, such as: support for hard drives larger than 8GB, the support of high transmission rate, etc.;
C. Check the logical structure of the hard disk: startup class failure reference point to judge The relevant parts.
a) check whether the normal disk partition, partition is activated, whether the format, the system file exists or integrity;
b) for not partition, formatting the hard drive, without the case of the virus, should be replaced hard drive. change is still valid, check the minimum system software, the hardware components have lower fault;
c) if necessary, repair or initialization, or complete re-install the operating system; < br> D. Check the system environment and settings: Start Class Trouble reference points in the relevant parts.
a) pay attention to check the system for the presence of the virus, in particular, is to guide the virus (such as the use of search KV3000 / K command, or MEM.EXE orders check);
b) carefully check whether the operating system is running third-party disk management software; Device Manager on the IDE channel settings are appropriate;
c) is ON inappropriate services. Note that here, ATA drive in some applications of the likely exception, recommended to uninstall it after see abnormal behavior disappeared;
E. hard disk performance check:
a) when added electricity, if the hard drive sounds unusual, simply do not work or not working properly, it should check whether the power problem, the data cable is faulty, BIOS settings are correct and so on, and then the hard drive itself is faulty;
b ) should use the appropriate hard disk drive manufacturers test program checks the hard disk have bad sectors or other possible failure;
F. For the protection of cards on the hard disk problems caused by the following aspects should be considered:
a) Installation hard drive protection card, should pay attention to the CMOS in the virus warning off, the CMOS address set in the mapping does not use (disable), the CMOS in the first boot device is set to LAN; optical drive and hard disk should be connected to different IDE data online.
b) hard disk if you forget the administrator password protection card, for 1.0 ALT +133, ALT +144, ALT +155, pop-up of 10 groups (must be with a small keyboard), the 3.0 version In the administrator password, enter ENPQ, get a set of data, and then dial 800 to get the password;
c) equipped with hard disk protection card machine, the boot screen appears the phenomenon of red, should be resolved using a dedicated tool. methods, please See related \whether the boot disk partition types recognized by the operating system; in the hard disk larger than 8GB, the 8GB is established after the fall of the boot disk FAT16 partition (of course, support the FAT16 file system boot disk); the exclusive area of the boot disk if more than 3;
e) can not afford protection hard disk protection card, to check whether the user turned off the hard disk protection feature, to enable the hard disk protection, can enter the system before, click F4 to enable (should have been installed prior before), if not, can be reseated the hard disk protection card. In Windows, you should check the driver software is installed;
f) When Kai had the hard disk protection feature, the hard disk is not the original system reservations should be asked whether the Department of users of the original system partition using third-party software. At present only to protect the hard disk protection card that comes with the operating system, FDISK to partition the system;
g) in protected mode for each hard drive to restore If not properly shut down because, while there many times ScanDisk prompts should be in administrator mode, add in the Msdos.sys file entry autoscan = 0;
h) for the user mode, garbled phenomenon, required to run in administrator mode to upgrade disk SETUP.EXE;
3, the floppy disk drive
1) Environmental inspection
A. floppy in certain circumstances, the inspection method is similar to the hard disk .
B. Check the floppy connection:
a) connecting cable installation is correct, there should be misplaced or INSERT phenomenon;
b) the location of floppy drive connected, should be the value set in BIOS line;
c) floppy power connection is correct.
C. Floppy visual inspection
a) floppy drive if there are foreign;
b) whether the circuit board and component deformation, discoloration , smell and other phenomena.
D. used the quality is bad floppy media;
2) failure to check the check points
A. floppy drive should be the minimum system software to add floppy drive, or remove Hard to judge after examination. and, when necessary, out of the box outside the examination;
B. similar to the hard drive check. but beware: BIOS on floppy is read-write settings to allow or prohibit;
C. check the floppy drive’s read and write, one is checking their literacy, the other is the exchange of floppy disk read and write capabilities, which means that there may be trouble in the floppy in the floppy disk can written in another a normal floppy drive to read. If not, replace the floppy drive;
D. is the most easily infected floppy disk media, so the examination, we must pay attention to the virus in check.
4, CD-ROM drive
1) Environmental inspection
A. check the drive connections:
a) drive on the ID jumpers are correct, it should be connected to the cable position on the match;
b) drive data cable is connected a wrong or reversed;
c) optical cable is damaged or hard creases. can replace the cable inspection;
d) whether the type of drive cable and drive the technical specifications in line;
e) drive power supply is properly connected, should not be too loose or the plug is not in place of the phenomenon.
B. drive visual inspection:
b) drive circuit board components have deformation, discoloration, and fracture defects and other phenomena;
c) drive power outlet of the needle connected whether Weld or loose soldering phenomenon;
d) power-up, the drive self-test when the light is not bright or Always; work light whether the normal shiny;
e) power-up, the CD-ROM drive to listen to the sound operation is normal, there should be no unusual noise and excessive noise.
2) failure to check points
A. optical inspection, replace the software application CD-ROM minimum system checks the hard disk to judge. and, when necessary, out of the box outside inspection. inspection, with a bootable CD to start, a preliminary inspection drive failures. If not properly read take, then check the minimum system software. The first study is the optical drive;
B. similar way to check the hard drive;
C. drive performance check:
a) the failure to read the disks poor , first consider the impact of anti-virus software, then use the CD that were detected, such as fault recovery is to replace the maintenance, or see the user’s needs and make the appropriate treatment failure;
b) If necessary, refresh the drive through The formware check whether the phenomenon is not the fault displacement disappears (eg due to a CD-ROM drive into a CD-ROM, causing the system is first started, the drive does not work correctly, you can try in this method);
D. operating system in the configuration check:
a) applications in the operating system can support the drive’s technical specifications used;
b) Device Manager settings are correct, IDE channel settings are correct. necessary to uninstall CD-ROM drive restart, so that the operating system re-identification.
5, this class of fault finding processes
see Appendix I (c).
six cases
Case 1:
Problem description : Wang is a company’s computer maintenance personnel, office machine is Lenovo’s Ben on 2000 models, 13G hard drive, as long the computer system and data is not maintained, the system up and running than slow, the C disk the important data copied to the D drive, then run the system restore software Lenovo, the Windows98SE hidden partition to the C drive on the system copy less than .10 minutes to restore complete, reboot again, the normal into the Windows98 system. but into the system, found that the division of the extended partition with PM a lot of missing data is in the extended partition, what to do? Wang embarrassing situation hh
Solution: First, view the Lenovo machine random data, the instructions read \PM and so could not support the partition format, partition, please use Fdiskhh \and an extended partition is no other partition information, then think of software Diskman, enter MSDos, run Diskman, the first warning that the partition table is wrong, Diskman although still recognize the hard drive into two partitions, but it also re-test the partition table function. re-test partition table has two fully automatic and interactive methods, choose the latter, Diskman cylinder testing began by pre-existing hard disk partition table. After a very long time, the original three partitions, including Lenovo System hidden backup partition recovery software have been tested out, to maintain regional format, as usual.
Comments: The application or user in the user partition on the hard drive power will lead to partition table error encountered such a problem Do not worry, to analyze the cause of the problem, see the relevant information, such as software and computer data with the help of the relevant software or tools to solve, if the hard drive works, related software application or tool is not very understanding, some To find the relevant information, or to the person asking.
Note: Diskman hard disk partition table maintenance software, run on MSDOS environment, using all Chinese graphical interface, without any support character system. chart form to reveal the detailed structure of the partition table to support mouse operation, support large hard drives and more than 8G UNIX, NTFS partition format etc..
Case 2:
Problem Description: A user Sky II 5311 model, the user software to reflect random NTI CD-Maker Plus the FileCD tool when formatting rewritable discs (BenQ CD-RW), progress rapidly to 100%, but did not finish formatting tips, forcibly close the dialog box can not turn off. Finally the only other End Task. using NTI CD-Maker Plus hard disk recorder, recording the progress of the process of recording shows, and prompt after burning will burn a good CD into the drive, prompt does not recognize CD-ROM.
solution: first of all is the NTI CD -Maker of plug-in FileCD of software problems, upgrade NTI CD-Maker software to V5.08, V5.13, failed to resolve, to upgrade to V5.15 phenomenon remains, look FileCD the original version and the user’s machine FileCD version, as the follow-up for the 2.0.10 version does not function in the rewritable optical disc has improved. considering the selection of other burning software, use NERO to test (version V5.5.9.0), using the software implementation of the fast erase and then burn them on CD, still occur in this phenomenon. but with SONY’s CD-RW discs no problem.
Comments: rewritable disc burners and burning software and have a great relationship Please solve the problem, engineers can consider the problem from various angles.
Case 3:
Problem Description: A user drives over security, drive customers to buy their own, according to the user that purchased in the market when the test drive, optical drive no problem, test data, such as disk and VCD discs can be properly read out, but returned home after the installation of optical drives, boot into the system, all the disc into the CD-ROM drive’s letter shows only a sample of CD tag. Users will drive back to the place of purchase to the test machine installed, the problem is complex.
Solution: After checking found that drive the data interface to turn on a data line, leading to the data drive not function properly identified.
Common Trouble mm Display category Show category IV failure fault
1, the definition of failure includes not only such example
equipment or components as shown by the failures, but also contains other components as caused by the poor in the display is not normal. In other words, the display is not necessarily the fault caused because the display device, should be fully observed and judged.
Second, the possible failure phenomenon
1, no significant boot, monitor sometimes or often not in power;
2, display color cast, jitter, or scroll, showing hair virtual, Huaping, etc.;
3, in some applications or configuration Huaping, dark (or black), ghosting, Death, etc.;
4, the screen parameters can not be set or modified;
5, brightness or contrast is not adjustable or adjustable range of small, screen size or location can not be adjusted or a smaller range;
6, after the sleep wake show abnormal;
7, display odor or sound.
three components may be involved in
monitor, graphics card and their settings; motherboard, memory, power supplies, and other related components. with particular attention to Other computer peripheral equipment and magnetic interference on the computer.
4, determine points / order
1, maintenance of appropriate preparation before
the latest video card driver
2, Environmental Inspection
1) The electrical inspection:
A. whether the mains voltage 220V + / -10%, 50Hz or 60Hz; the stability of electricity;
B. other reference power-type fault in the electricity of the inspected part. < br> 2) Connection check:
A. solid connection to the host display correctly (with special attention, when there are two display ports, is connected to the correct display port); cable connector pins are deformed, fracture phenomena, should pay attention to check whether the quality of the cable show good;
B. monitor market power is correctly connected, the power indicator is correct (whether light and color);
C. display abnormal, whether grounding line is not relevant. Special note: do not allow computer users to install ground maintenance engineers should be invited users to a formal electrician to install;
3) peripheral and host environmental inspection:
A. Check temperature and humidity are consistent with the manual (such as Diamondtron tubes require the use temperature of 18 ~ 40C);
B. monitor whether there are power-odor, smoke or abnormal sound (such as a crack, etc.);
C. Display card components have deformation, discoloration, or excessive temperature rise of the phenomenon;
D. graphics card is plugged in, can be re-inserted, with rubber or alcohol wipe graphics card (including the other board) and cheat section to check; host the dust is more for clearance;
E. surrounding environment whether disrupting chemicals exist (these disrupting chemicals include: fluorescent lights, UPS, speakers, hair dryer, phase by nearly ( 50 cm or less) of the other displays, and other high-power electromagnetic equipment, cables, etc.). Note the direction of the monitor display also may be due to the effects of geomagnetism on the display device interference;
F. for the color cast, jitter phenomena such as faults, can alter the display of the direction and location, check whether the fault phenomena disappear.
4) other checks and precautions:
A. Host power-up, has any normal self and running action (if any self-test to complete their calls, the hard disk light kept flashing, etc.), and if so, then check the display key or display card;
B. Charged moving against the direction of monitors and displays, after the power period of time (2 to 3 minutes) is also best not to carry the monitor.
3, failure to judge points
1) adjust the monitor and graphics card:
A. By adjusting the display of the OSD options, the most good return to the RECALL (factory state) state to check whether the fault disappears. for liquid crystal display, adjustment shall look at auto config button;
B. monitor the parameters are adjusted too high or too low (such as H / V-MOIRE This is to recover can not RECALL);
C. display the button can adjust the offset monitor whether the scope of the specifications;
D. display abnormal sound or abnormal odor, is beyond the display technology specification requirements (such as new display just used, there will be unusual odor; just when power is caused by reasons as degaussing sound, screen jitter, etc., but these are the norm). the display specifications, see Appendix 2 of (2);
E. graphics card specifications are available on the host (such as AGP 2.0 card is available in the AGP slot in the host medium).
2) BIOS configuration adjustment:
A. BIOS settings if the current use of the graphics card type or monitor the location of matching connection (that is, with the onboard graphics card, or an external graphics card; is the AGP graphics card or a PCI graphics card);
B. For does not support the automatic allocation of display memory, onboard graphics card, need to check the BIOS memory size displayed in compliance with application requirements;
the following minimum system checks should be carried out in software.
3) check the monitor / card Driver:
A. Monitor / card driver is matched with the display device, the version is appropriate;
B. monitor the driver is correct, if the driver provided by the manufacturer, it is best to use the drive manufacturers; < br> C. is loaded the appropriate Direct X drivers (including motherboard drivers);
D. If the system is equipped with a Direct X driver, use its available Dxdiag.exe command checks whether the fault display system. The program sound card device can also be used to inspect.
4) display properties, resources, check:
A. In the Device Manager to check whether there are other devices with the video card have the resources to conflict, if so, first go In addition to these conflicts equipment;
B. Display Properties settings are appropriate (such as: do not show the correct monitor type, refresh rate, resolution and color depth, etc., will cause ghosting, fuzzy, Huaping, jitter, and even black screen phenomenon);
5) operating system configuration and application of inspection:
A. Some of the system configuration files (such as: System.ini file) of the settings are appropriate;
B. display card technical specifications or if the function display driver support application needs;
C. the existence of other software and hardware conflicts.
6) hardware check:
A. When the display to adjust the normal, it should add the other components one by one to check what parts are causing display abnormal;
B. By changing different types of graphics card or monitor, check for the matching between them;
C. by replacing the corresponding hardware check it because the hardware failure caused display abnormal (the proposed change order: video card, memory, motherboard).
5, this class of fault finding processes
see Appendix I (d).
six cases
Case 1:
Problem Description: come across such a machine, strange phenomenon, models for the Flight to the Moon 2000 PIII/800, failure to boot was no regular, and sometimes can show into the system, but using 1-2 hours will appear hang, reboot nor display, only had for a long time and then boot, it can be displayed.
solution: run into this problem, first determine the hardware problem should be, open the case, see the board do not loose (Note: graphics and motherboard slot Lenovo stickers, stick very tight), for test pieces of it, has been replaced memory, CPU, power supply, are not the answer, and back to board it, split tear card association with the motherboard slot stickers, the feeling did not insert graphics in place and press it down, can go a little further, then suspected to be caused by poor contact with the motherboard not the graphics card, so the machine again to restore all the original parts, test machine, all normal.
Postscript: This case is because the graphics poor contact, causing the strange failure detection in the maintenance because of omissions (only view the graphics card is plugged in tight, without hands-on check), causing the maintenance process tedious.
Case 2:
Problem Description: On a Pentium machine, the user can not be said that every time you start to enter WIN98, cursor flashing in the upper left corner of the screen, crash; but you can enter Safe Mode .
solution: video card or monitor settings suspected improper, to enter safe mode, the display resolution set to 640 * 480, color set to 16 colors, restart in normal mode can be entered, but as long as the changes to distinguish between what rate or color, then the machine will not start; look inside the machine, in addition to user plus a LAN card, no other configuration, is it with the graphics card into conflict? disconnected network card, can normally start WIN98, to insert another card slot, start to detect the new hardware, load the complete drive, start, all normal.
Postscript: Since the card is not compatible with other components or crashes caused by the conflict, can start with the smallest systematic approach to test (the minimum system method is to retain only the motherboard, CPU, graphics card, power supply and other main components), first rule out the major components, and then test each other expansion cards.
Case 3:
Problem Description: Delta Force – Land Warrior, in the 810 (e) series motherboard running on the machine (with the Jubilee, the daily series), such as random with the graphics driver installed (which were driven by random disk installation is our usual style), entering the game screen, will inevitably lead to crashes.
Solution: The solution is to download the new version from the driver, upgrade.
Postscript: If you encountered in the actual maintenance of the failure to play 3D games crash, estimates may be graphics card failure, and with no spare parts replacement (for the maintenance of our home, is frequently encountered), may wish to download a Direct control from the software, through which block out AGP support. playing the 3D games, such as the crash does not appear, indicating the problem is may be out elsewhere (such as motherboard, memory). such as crashes, then explain in large part, this card is a failure.
Case 4:
Fault Description: Open Days 2200 P4/1.7G (for QDI P7LI-AL board), running over ex Huaguang Workgroup Edition software (with an ISA card encryption), such as the zoom display, then the left boundary can not be displayed.
solution: users buy new machines, the proxy Business for users to install ultra-En Group Edition software, a problem. for a new machine, fault remains, agency judged as Huaguang ISA card not compatible with this model, so that the pits home address. to the user Department, the complex is failure , insert a PCI graphics card showed normal, estimated not to machine failure. In the System Properties m m graphics performance, the two cells to reduce hardware acceleration to solve the problem.
common fault judging mm installation type to install Class Chapter failure failure
a defined example
such failure was reflected in the operating system or application software installed malfunction
two possible fault phenomenon
1, install the operating system, making paper replication crashes or error; during system configuration crash or error;
2, install the application software error, restart, crash, etc. (including replication and configuration process);
3, Hardware Installation After the system exceptions (such as black, does not start, etc.);
4, after the installation of application software does not uninstall, or uninstall not so.
three components may be involved in
disk drive, motherboard, CPU, memory , and other possible components, software.
4, determine points / order
1, maintenance of pre-prepared
1) Note that the data lines to bring the disk;
2) compatible with the latest version of device driver program.
2, Environmental Inspection
1) Software Installation
A. Check the connection hardware and appearance:
a) Check with the host connected to other devices are working correctly;
b) device between the cable is connected wrongly or fumbled. connection plug, pin Block access if there is deformation, loss, short-circuit phenomena;
c) check the error message carefully to determine the location may result in failure;
d) whether the odor observation system, components of the temperature;
e) CPU fan speed is too slow or unstable;
f) whether the drive is not working properly the sound.
B. Other aspects of inspection:
a) carefully control the software’s manual to confirm the machine’s software and hardware meet the requirements of the manual;
b) carefully observed the installation media is intact.
2) equipment installation
A. Check the equipment connected with the appearance of:
a) to install the equipment, parts are properly connected, the connection cable is intact, whether the lack of access needle needle, needle, or shorted phenomenon;
b) To install the equipment, parts of the production process is good;
c) I like the software installation.
B. Driver media check: device driver for the installation media is intact.
3, fault check points
1) operating system installation:
A. Check CMOS settings:
a) If necessary, please return to factory settings;
b) Close BootEasy function, turn off anti-virus , and close the BIOS write-switch;
c) pay special attention to the parameters of the hard disk, CPU’s temperature. to observe the self-test when the information is displayed and the actual hardware configuration match.
B. Installation media and target Media check:
a) check for viruses;
b) check the partition table is correct, the partition is activated. to use Fdisk / mbr command to ensure that the master boot record is correct (note the use of this command, if the machine can not be started, the original system to prove the existence of viruses or errors. hard disk initialization should be done);
c) whether the third party inspection system memory-resident programs.
the following procedure, suggested the minimum Software systems check (Note: a minimum system, the need to add and install the other drive).
C. installation process checks:
a) if the copy files, reports and other documents CAB wrong, can try in the original files to another medium (such as hard disk) on the re-install. If properly adopted, a problem with the original installation media, go check the media and the corresponding drive is faulty; if still can not copy, check the appropriate disk drive, data cable, memory and other components;
b) If the installation by covering the above issues, it is recommended if the change after the installation media can not rule out failure, it should first initialize the hard drive operation, and then reinstall (first the beginning of operation, it is best to completely remove the hard disk after partition). If that does not, then consider hardware;
c) the installation process, when it detects the hardware error, blue screen or crash, etc., it is first necessary restarted several times over (should be shut down restart), depends on passing; the other is under the minimum system software checks pass. If you can not, should be followed by checking software minimum system memory, disk, CPU (including the fan ), power supply and other components; if properly installed, is the minimum system software components other than the failure or configuration problems, this can be through the installation is complete, the stepwise addition of those components, and determine whether there is malfunction or improper configuration;
D. Hardware and …

common fault is determined that the part of the computer from boot until shutdown during fault classification. each type of judge, the first part of the orientation process is the \no matter what method or what to judge, these two are always used in combination with each other.
The following fault types listed in the failure phenomenon is part of the phenomenon of the many faults, the fault is not listed for the phenomenon, and some can be categorized into one, and some can not be classified. Therefore, this manual has been listed only for and the failure of which the phenomenon can be classified to provide the appropriate judge of the methods and ideas, and provide basic troubleshooting methods. while not classified as one of the other fault phenomenon, we will continue to work in the future to collect, collate conclusion, then the \Chapter Power-class fault
First, the definition of an example from the power (or reset) to the self-test to complete this part of the process of the computer failure occurred.
Second, the possible failure phenomenon
1, the host can not power up (such as: power supply fan does not turn or stop or turn about, etc.), sometimes can not power up, boot out gates, cabinets and other metal parts of electrically charged;
2, no significant boot, boot alert;
3, self-test error or a crash, self-test process and the actual configuration shown discrepancies;
4, repeatedly restart;
5, can not enter the BIOS, update BIOS after the crash or error; CMOS power-down, clock allowed;
6, noisy machines, automatic (regular) boot, power supply problems and other failures.
Third, the components may be involved in the utility environment; power supply, motherboard, CPU, memory, video card, other possible board; BIOS settings (can be discharged to return to the factory state); switch and switch lines, reset button and Reset the fault line itself.
Fourth, determine points / order.
1, before servicing, preparation 1) POST card; 2) multimeter; 3) Shidian Bi; 4) CPU load.
2, Environmental Inspection
1) Check the computer equipment: A. peripherals and computer equipment inside and outside if there is deformation, discoloration, odor and other phenomena; B. Environmental temperature and humidity conditions; C. After power up, pay attention to parts, components and other equipment is deformed, discolored , smell, temperature, abnormal phenomenon.
2) Check the electricity situation: A. Check whether the mains voltage of 220V + / -10% range, is stable (that is, whether there are frequent power outages, power outages and other transient phenomena); B. Definition mains wiring is correct (that is, left-right-fire zero, does not allow for ground use with a zero line (the phenomenon of zero to shorted), the zero line should not be suspended or virtual access phenomenon); C. Power lines are connected with leakage protection (and must be grounding line of fire), is there ground, etc.; D. Plug the power cord plug at one end is firmly sadly electrical outlet in the city should not be too loose or the plug is not in place of the phenomenon, it can be sad at the other end connected to the host power supply on, should not be too loose or the plug is not in place of the situation.
3) Check the connections inside the computer: A. Can the normal power switch off, the sound clear, with no key, access to undesirable phenomena; B. other various buttons, switches off is normal; C. connected to an external signal cable is open circuit, short circuit phenomena; D. host power supply is properly connected to the main components, in particular the corresponding motherboard socket; E. board, especially in jumping on the motherboard connection settings are correct.
4) Check the installed components: A. check whether a foreign body within the chassis caused by short circuit; B. or components installed is causing short-circuit (such as P4CPU fan installed on the motherboard on the back of the stent dislocation caused by short circuit, etc.); C. The re-insertion parts (including the CPU, memory), check whether the fault disappears (before re-insertion, removal and clean finger should do first, including the slots). If you always resolved by re-plug, check the components to install, does too loose, tailgate size is inappropriate, socket too tight, so that plug is not in place or out of; D. Check memory installation, required the installation of the memory slot is always started from the first order of installation. If not, Insert it again.
5) Check the power-up phenomenon after: A. Press the power switch or reset button, whether it is normal to observe the light flashes; B. fan (power supply and CPU’s, etc.) work, there should be no movement or only look to stop the phenomenon of action; C. Pay attention to the fan, motor drives, and so have the normal functioning of the voice or sound too great; D. host can power-up, but no show, the host should be able to listen to the normal self-test ( that is, self-test to complete their calls, and the hard drive lights constantly flashing) if so, first check the display system is faulty, or check the main problem; E. noise a big problem for the boot, should be identified clearly noisy location, general cases, the noisy parts are fans, hard drives, optical drives and soft-driven mechanical components. For the fans, should be through the dust to examine, if the noise reduction can watch the fan axis of some of the oil droplets to enhance lubrication.

3, failure to judge points
1) Check the main power supply: A. console is not connected in the load, plug the power supply to the motherboard the green line and shorted the black wire directly to see whether the power up and use multimeter to check voltage output; B. multimeter Check whether the output voltage from various quarters in the specification to the extent permitted; C. received a load in the case, the output power with a multimeter to check whether the fluctuation range beyond the permitted range; D. For the power of a power-only movement about cease to work, should first determine the power load or connected to the other machines are in working order (ie check the three points mentioned above); E. If the computer’s power supply is not directly from the mains, but from Regulators equipment available, the user should pay attention to the regulator device is used for good, or whether the power of our products compatible.
2) no significant time in the boot, with a POST card check the minimum hardware components in the system is normal A. see POST code is displayed as normal (see \shown in the code, should check all the components associated with. as shown in the code and memory related, it should check the motherboard and memory; C., under listen minimum system hardware, with or without alarm sound, if not check the focus should be Minimum system parts; D. inspections should also be noted that when the minimum hardware system alarm sound when asked to insert fault-free memory and graphics card (integrated graphics card), if there is no alarm sound at this time, and or self-test completed showing the voice that the smallest components in the system hardware, the basic error-free, otherwise, should mainly check the motherboard; E. replace the CPU in to prepare to check, and should use the CPU load, check the motherboard’s power supply voltage is within the allowable range, the voltage can be conducted under normal conditions replace the xx for CPU. If out of range, replace the motherboard directly. CPU voltage allowed values see the \components in the system to normal by the POST card check, to gradually join the board and other equipment to check which of the components or equipment in question; B. The always resolved by re-insertion to increase Dian failure of the components should be checked parts tailgate size is not appropriate, it can remove the tailgate inspection.
4) BIOS settings to check: A. clear CMOS by checking whether the fault disappears; B. BIOS settings are not consistent with the actual configuration (eg: disk parameters, memory type, CPU parameters, display type, temperature settings, etc.); C . according to need to update the BIOS checks whether the fault disappears.
5) Other aspects of the inspection: A. there is leakage protection in the next environment, be sure to check the mains socket on the wiring is correct (that is, zero left-right-fire, the ground connection method; zero ground can not be short access; zero line can not be suspended), then check the leakage protection is properly connected to the line of fire, the volume is too small, then check the wires in the way the way the city the number of connected devices (particularly the number of computers in the leakage protector mm action current of 30mA, you should take 16 to 20 computers), and finally check whether the machine equipment leakage or leakage current phenomenon; B. Check whether the user environment earth. in the absence of earth’s environment, touch the metal part of the host, there will be hemp hand feel. At this point, if the ground, the machine can function properly, and hemp hand disappears, then it is normal, not failure; C. to not enter the BIOS, or BIOS can not update the situation, first consider the motherboard failure; D. repeatedly reboot or shut down for the situation, in addition to attention to the utility of the environment (such as the plug is plugged in, etc), pay attention to whether the power supply or motherboard failure; E. the system is loaded with third-party switch machine control software, there should be uninstalled.
5, case
Case 1: Problem Description: The twin stars 6C/766 machines, motherboards, elite P6SEP-ME V2.2D, when the memory is not inserted in DIMM1, the boot no display, but the machine did not alarm. Solution: After testing, when DIMM1 on Unplugged memory, even if DIMM2, DIMM3 all plug memory, the boot is no significant. When DIMM1 plug in memory, regardless of DIMM2, DIMM3 whether the inserted memory, boot normal. check weekly that the early, this problem is due to This model uses the integrated graphics memory is shared physical memory, but the required memory from physical memory is inserted in DIMM1 on memory access, when no plug DIMM1 memory, integrated graphics can not be from the physical memory access memory, so users no significant boot time.
Case 2: Problem Description: Power On Self Test each computer, the system always display 512K Cache in place to stop running, why? Solution: First of all, since the death machine in the display buffer, must be there or after part of the problem. remember normal boot, the show After the turn of the hard disk for system boot up xx. Therefore, the cache can be concluded that the problem is not that hard disk failure. Remove the hard drive to install to another computer, confirm that the hard disk is good. that checks for a computer failure the most common way to exclude France mm Tihuan. 现在 us to focus on the cache Shang Gao Su, 进入 CMOS settings, prohibiting L2 Cache, save the file exit, restart Jiqi computer then working, can conclude that the problem is the L2 Cache. touch cache on the motherboard chips, found some hot chips, it is estimated that the problem here. once again acknowledged the problem right. analogy: If it is found the total machine crashes, you can run for a while, the use touch the cache chips on the motherboard and found that hot, you can turn off the secondary cache in the Cmos and found that it crashed, the final definition of failures.
Case 3: Problem Description: The user uses T Kai-day 2600 P4 1.6G 12840DSF (special 5409) computers, boot no display, users can now consult on how to solve? Solution: Check the user’s environment, found that users with two graphics mm Random Motherboard There is also a graphics integrated on a single TNT2 M64 32M Xianka, some customers Gang Gang that PCs on the computer because not too familiar with the monitor signal line received a motherboard integrated graphics connector, this will cause no significant start, but this When the host is working properly. encounter no significant user repair or display boot failure, please suggest customers check the environment, if it is not correct, prompted correct, the problem can be solved.

Complete the basic knowledge of computer troubleshooting (c) to amend title now Qieru Wei Chapter 1.1 Troubleshooting common computer hardware fault with the motherboard circuit board integrated continuous improvement and the board price reduction, the motherboard may be increasingly low maintenance. But the master comprehensive inspection and maintenance techniques, motherboard using the process of understanding the issues should be noted, was still on the computer user is very important. The right to use microcomputers can reduce the board’s failure rate, skilled testing technology can help you to quickly determine which parts of motherboard failure occurred, a certain knowledge enable you to successfully repair troubleshooting. This introduces the motherboard fault classification, the main reason for failure caused by motherboard and motherboard troubleshooting common method .1.1.1 excluded from the fault classification board different point of view, the main analysis of failures can have different classification methods. (1) based on the impact of computer systems, motherboard failure can be divided into non-fatal failure and fatal failure. Among them, non-fatal fault occurs in power system self-test period, the general gives the error message. fatal fault has occurred during the system Power On Self Test, the general freezing. (2) According to the affected areas can be divided into local failure and overall failure. partial failure of a system one or a few is not functioning correctly, such as print control chip on the motherboard is damaged, caused only online print is not normal, does not affect other functions; the global impact of failure is often the normal operation of the entire system, so the loss of all functions, such as clock would paralyze the entire system is damaged. (3) According to the fault is fixed, as if fault can be divided into stable and unstable fault. stability function failure is due to component failure, circuit open and short circuits caused by its failure to repeat the phenomenon of stability occur; without failure is often due to poor contact stability and performance of cross components, sometimes the chip logic function is normal and not normal when the critical state caused. If as I / O slot deformation, resulting in display card with the socket connection is bad, so show error status was uncertain. (4) can be divided into different levels according to affect the independence of failure and the related failure. independence of the failure to complete a single function of the chip that damage; associated with failure means a failure Other failures associated fault many functions for the abnormal phenomenon. The real failure is to control all functions of the common part of the failure. such as soft, hard disk subsystem are not normal, and soft, hard disk controller on the control of more of its functions separation, failure often occurs on the motherboard’s peripheral DMA data transfer control of the control circuit. (5) According to the troubles of the source can be divided into power failures, bus failures, and component failure. power failure, including board +12 V, +5 V, +3.3 V power supply and the Power Good signal failure. bus fault and fault, including bus, bus control their own production failures. component failure include resistors, capacitors, integrated chips and other components of the fault .1.1.2 motherboard failure caused the main and common Fault repair method 1, motherboard failure caused the main board failure caused by a variety of reasons, the following only some simple analysis of the main reasons. hope all clear. (1) Human Error hot plug boards, and mounting plate card and plug, improper force on the interface chip and other damage. (2) environment is often caused by bad static interference on the motherboard chipset (especially CMOS chip) is the breakdown. In addition, the board met damaged or mains voltage instantaneous power generated peak pulse, they tend to damage the system board near the power supply plug the chip. If the board covered with dust, can also cause signal short circuit. (3) device quality chips and other devices because the quality of the damage caused by bad .2. Motherboard troubleshooting common method of maintenance performance for the system board failure often failed to start and no display screen is difficult to visually determine the failure phenomenon. Here are the repair methods have advantages and limitations of the computer repair process often used in combination. (1 ) cleaning method using the cleaning method to remove dust and other hazards caused by poor contact, application brush to gently brush the dust on the motherboard. In addition, some of the motherboard and chip card pin form, often because of poor contact pin-oxidation . eraser wipe the surface oxide layer can be used to re-plug. (2) observation and repair of the board to be repeated view to see the plugs and sockets are skewed. resistor, capacitor pin is bumped, the surface is scorched, the chip surface Does cracking, copper foil is blown on the motherboard. but also to see if a foreign body between the components fall into the motherboard. encountered areas of doubt, you can use multimeter Measure the rib. touch the chip surface, if the abnormal fat hot, may be the same type of chip for a try. (3) resistance, voltage measurement to prevent accidents in Canada before the measurement of electrical power and to look at the motherboard (GND) between the resistance. the most simple of chip power is measured resistance between pin and ground. not insert the plug, the resistance should normally be to 300Ω, the minimum should not be less than 100Ω. retest about reverse resistance, slightly different, but not difference is too large. If the positive and negative or close to the conduction resistance is small, it shows short-circuit occurs, check the short-circuit reason. produce such phenomena there are several reasons for the breakdown on the motherboard has a chip on the motherboard is damaged resistor capacitor motherboard there are conductive debris (4) swap exchange host system to produce failure reasons, such as its failure or motherboard I / O bus on a variety of card failure can cause the system to not run properly. use plug repair method is to determine the fault in the motherboard or I / O devices and simple way. The way is shut down will be board-by-piece pull out, pull out a board on the start of each observation of machine operation, once pulled out a piece of post- board to run properly, then the reason is that the interruption of the plug-in board failure or the corresponding I / O bus slots and load circuit. if it pulled out all the plug-in board is still not normal after the fault system starts, then failure is likely on the motherboard. exchange method used is essentially the same type of plug-in board, the bus the same way, functions the same plug-in board or the same type of mutual exchange of chips, Genju failure to judge the changes in the phenomenon of failures. This method is mainly used easily swap the maintenance environment, such as memory self-test error, the same interchangeable memory chips or memory to identify the problem. (5) static measurement method for a particular board suspended state, according to circuit theory or logic chip output and the logical relationship between input , measured with a multimeter or logical document analysis of relevant point of electronics to determine cause of the malfunction. (6) dynamic measurement and analysis method specific thesis preparation program or artificial normal conditions, the machine is running using the oscilloscope to measure and observe the components of the waveform, and with compared to normal waveform to determine fault location. (7), after briefly together to form a complex and large scale integrated circuits with the principles of law to judge the extensive application of the control logic on the motherboard increasingly integrated, the more its logic correctness and more difficult to determine by measurement. can first check the simple logic chips and the RC components, will focus on logic fault is difficult to determine the large-scale integrated circuit chip. (8) software diagnostics through random diagnostic procedures, special maintenance Debug Card and based on various technical parameters (such as the interface to address), Bianxiezhuanyong Zhenduanchengxu Lai Wei Xiu supporting hardware can achieve maximum effectiveness. procedural test France De Yuan Li Fasongshuju with software, order, 通过 time line status and a chip (such as Register) to identify the fault position state.

jitter and whistle

galvanometer causes and treatment of
1, ground not connected, re-connected and ground.
2, board bad, replace the board.
3, turn off the laser power, Q drive, and lightly touch the lens is vibrating mirror galvanometer jitter or listen to it whistle, if troubleshooting, and then open the laser power and Q each drive to determine the laser power or driver causing Q .
4, if it is because the laser power supply jitter caused by vibrating mirror or whistle can be high-voltage laser power supply and other signal lines separated as much as possible some general troubleshooting can be. If the fault persists, replace the laser power. < br />
5, if it is because the Q drive jitter caused by vibrating mirror or whistle, you should check with the Q switch Q drive connection is between the short-circuit, short circuit the signal line will cause this failure. If the problem still exists, can replace the Q drive.
6 galvanometer bad, replace the galvanometer.
7, computer operating system or computer failure, reinstall the system or replace the computer.
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(1) poor contact card failure:
Usually caused by poor contact card can not boot and there is alarm system instability or crashes and other faults. Caused mainly due to poor contact graphics card cheat is oxidized, dust, poor graphics quality or chassis baffle problems. For the finger was oxidation caused by bad contact, wipe the finger can be used to solve the rubber; the dust caused by the poor contact, the dust cleared immediately after the general solution; for the quality of hardware caused by poor contact, usually by replacing method to detect the general use of graphics to Genghuan solution; for the problem caused by poor contact baffle box, usually not fully inserted into the graphics card slot, replace the chassis can be used to exclude.
(2) compatibility issues:
Compatibility failure often leads to the computer can not boot and the alarm sound, system instability and crashes or abnormal noise while the screen appears the phenomenon of such failure. Graphics card compatibility failure generally occurs in newly installed or upgraded computer after more common in non-compatible motherboards and graphics cards cheat slot with graphics card or motherboard can not touch. graphics card compatible replacement method commonly used fault detection, generally use the replacement card to troubleshoot.
(3) graphics parts breakdowns:
Graphics component failures often cause damage to the computer can not boot, system instability crash, Huaping other failure phenomena. Cards typically include graphics chip components damaged damaged, damaged video card BIOS, memory damage, damage or graphics capacitance FET failures. The graphics component breakdowns usually require careful measurement of the circuit card to determine the damage to the various signal components, to find the damaged parts, the replacement can be.
(4) graphics card overheating fault:
As the graphics chip at work will produce a lot of heat, so need to have better cooling conditions, damage will result if the cooling fan overheating graphics card does not work. Graphics card overheating causes system instability failure usually crash, Huaping other failure phenomena. There graphics card overheating as long as you can replace the cooling fan.
(5) graphics driver failure:
Graphics driver failure often leads to system instability crash, Huaping, text, images and other graphics card is not completely fault phenomena. Graphics driver graphics driver failure include loss of video card drivers are not compatible with the system, graphics driver is damaged, can not install graphics card Driver. for the graphics driver failure typically begins to enter the \Description graphics driver is not installed, driver version does not, the driver is not compatible with the system, etc.. generally remove reinstall graphics driver, if installed there \install the graphics driver, the driver is generally a problem or registry problem.
(6) CMOS settings failure:
Failure is due to CMOS CMOS settings to display the relevant options set incorrectly caused the failure. Common fault CMOS settings include: integrated graphics motherboard, CMOS settings in the graphics options screen error; such as \(General should be \>
(7) graphics overclocking issue:
Video card overclocking problem is that when used to improve the speed of graphics cards, graphics cards work to improve the frequency and cause of computer failure. A problem, you can be the frequency can be restored to factory default settings.
If you need to drive, it is recommended to install driver wizard, 2008, after installation, using its automatic update driver feature, it will automatically download and install the latest version of the drive, including network card, sound card, video card, USB, etc., removed and installed hard to find.

update the current computer speed and penetration rate is staggering, cheaper, and more than 2,000 yuan can assemble a dual core gaming computers. At the same time, computers have become almost common household furnishings and a good place for a hobby. But many people lack knowledge of computer use, small ornaments will bring a lot of trouble, I hope my article will help you.
First, the problem of pollution caused by home computer Yin
Many people will be placed in the bedroom PC, in fact this is very detrimental to human health.
1. Noise pollution:
PC-heat internal to consider all parts of the problem, install a lot of fans, such as, CPU fan, graphics card fan, power fan, motherboard fan, most of the users of air circulation to speed up the host circulation, but also to install the chassis fan. So many fans in the run together, the noise is amazing, the interference in the outdoor environment, you may not feel anything, when in use the computer at night or early morning, the noise enough so that people inside can not sleep or wake others feel at ease. long time working on this noise, it is also cause swelling of the brain are feeling, thinking human brain.
Suggested that PC-placed in the living room or balcony.
2. Radiation Pollution:
PC, a high precision instrument and equipment, its power-running time, will generate a lot of electromagnetic radiation, You Qi is Zhujibufen, Suiranxianzai Zhiliang good 1:00 of the chassis are claims that can effectively prevent the electromagnetic radiation, but the market on the Jixiang quality, You There are several you can do to cross the border, 400 yuan more than the chassis, the average person is willing to buy it? life, pay attention to anti-convergence, therefore, is the best way to protect themselves, the same token, I am still not recommended, the computer display in the bedroom on the ground themselves think about it, try not to open the case cover or the rear of the frontal attack on the host computer you are running, because it would lose the protection of the chassis radiation coating, lost the meaning of the chassis protection. now there is no solution for computer radiation good way, the best way is to not continue to stay too long before the computer, usually take 1 to 2 hours after the walk out is appropriate. pregnant women should stay away from the computer.
Second, home computer hardware maintenance
1. Regular dust:
Dust should be the first natural enemy computer, the computer in the long run, its causes static electricity and air flow cabinets and environment factors that will cause a lot of dust deposited on the board, the board will cause excessive heat distribution of dust is not out affecting the normal operation of the computer. If the humidity of the surrounding environment is too large, then so prone to short-circuit failure, severe easily cause a fire. that how to clear the dust from it? families in general would Beiyou vacuum cleaner, I do not recommend the use, by practice, the effect is not ideal. If you do not have the professional hair dryer, they can use everyday hair dryer is the kind of hair blowing in the wind as far as possible the temperature to the minimum. general computer use for six months should be blowing in the best way.

2. Other details
In the computer running the process, try not to move the computer, or cause physical bad sectors hard disk failure occur, a serious break when the hard disk. Usb device or front insert headphones, you should plan at the metal look on the light, put off static, then use.
Third, the most common home computer problems and solutions
1. Mainframe computer can boot, the monitor power light is on but no display?
This failure is more common, and its solution are also several, mainly from the following aspects:
(1) First, confirm that displays no failure, then check whether the plug between the display and graphics off, try plugging again.
(2) to open the main chassis, confirm the independent graphics card fan are working properly, see separate graphics card from the slot extrusion (except for integrated graphics), and then pull out card with a soft cloth to wipe the card clean and metal tentacles before inserting the slot to see if normal.
(3) will pull out the memory from the memory slot, rub it with a clean soft cloth after the re-insertion, this step, the computer can boot normally.
(4) detailed examination of the graphics card or motherboard capacitors, capacitor made to see if there is mortar drum or explosion, if any, to weld down, you can replace with a new, generally with 4 to 5 years most of the computer failure capacitance caused.
2. Computer use over time, become very slow, while the hard disk light flashing constantly mad?
(1) must first make sure your computer has no viruses, such as viruses, the computer software involved in the clean-up and maintenance issues.
(2) clean up the computer temporary files, registry garbage, unwanted applications, etc., can be optimized master, Super Rabbit, 360 security guards can yo.
(3) should be 1 month on defragment your computer, finishing the preparatory work before you do the above, because the computer during use, the data continue to read and write, will not result in physical storage of data continuity, each When the data into memory, the system will re-sequence stitching data, system operation at this time there will be too slow, hard disk light flash of crazy phenomenon, by defragmentation, run speed will be significantly marked change, do not believe you try.
3. Computer for some time, frequent crashes or re-start?
(1) First, let me explain, \(2) In general, cpu cpu fan speed is not enough to cause overheating or the graphics card fan to graphics GPU overheating is the main reason for the failure, the computer just started, even if the fan speed is not enough, but the ASIC is not hot, so it can properly use for some time, but the computer is running too long, the chips are super-heat temperature protection to the motherboard bios, the OS will re-start, there will be some computer crash phenomenon.
4. Computer access to the Internet, when the failure to keep up?
(1) This phenomenon is very common. We do not discuss the reasons for the software, from the hardware side Zhaoshou. First Queren about Zai you Shang unable to get online O’clock, network cable is disconnected, if the \Your cable is broken, for a crystal or heavy to be a first try.
(2) If local connections are normal, but also with other computers on the LAN no problem between the transmission, you can Ping the World Wide Web address of any line to see if there is packet loss. Such as ping www.baidu.com-t the order is Baidu repeatedly ping the address, if the packet loss rate was found excessive. should check the cat or the ISP router or ADSL central office line problem, the first two can be replaced by other similar products to identify the reasons, the third, it must follow ISP service providers contacted.
When I wrote here, I realize, since too wide a subject, write it, could write a book, or write at the end of it quickly!
I welcome the use of computer problems encountered in the process give me a message, I will do my best to help everyone, this is the purpose of this blog. Someone asked me, standing in the software or CD-ROM which does? As home computer, should maintain the following to the kind of on it.
(1) an XP system or other operating systems GHOST disk, installation disk can, GHOST XP is installed on the system the most concise manner, allowing you to use an operating system owned by 10 minutes, while OFFICE, QQ, etc. software installation Okay.
(2) computer hardware device driver disk, do not lose yo. Peacetime general do not want to use the time could not find also very anxious.
(3) You often use the application software, such as 3dmax, autoCAD, VS2005, etc., not all of the maintenance people to help you with the software.
(4) the genuine anti-virus software, and sometimes people will help you repair your installation of piracy, I suggest you the best with their own genuine disk.
Simple to write so I hope everyone can blog from the secondary to point anything.

【A】 Computer Fault – a crash, crash caused by a hardware failure caused by a hardware fault phenomenon of Death are two major types. 1. Turned on a black screen, hear the voice of the hard disk self test, and sometimes can hear the speaker Tweet.
should first consider whether this is a hardware connection problem. you can open the case screening devices connected, power outlet and plug card is loose. the best is to unplug the various add-on cards and then re-insert it again. If there are free slots, you can plug into a slot card for. more check each plug pin cards have signs of oxidation, if it should be processed. If these are not the answer, then we must wonder whether it is hardware damaged. Generally speaking, motherboards, CPU, memory, graphics card, the display is the basic element of computer display information, are indispensable. We can check by substitution rule out one by one, determine where the problem is. Also, if the computer is overclocked use, then we should clock down, because overclocking is the most likely cause of Death failures.
2. start showing, can hear the sound of machine self-test. but stiff in the self-test screen of a step, sometimes the cursor does not stop flashing, occasional error.
this phenomenon is mostly caused by improper because the BIOS settings. such as the type of memory settings (Fast page style, EDO, SDRAM, etc.) does not match with the actual memory access speed (such as DRAM Read Burst Tining and DRAM Write Burst Timing Options, etc.) to set too fast. If the user’s memory performance can not meet requirements set by force, then prone to crashes. In addition, the mix of different brands of memory and Cache settings can cause errors crash.
Another small hard drive with new motherboard is generated when the hard disk error settings. new production of motherboards in order to better support large-capacity hard drives, hard drives are often added some high-level access pattern. such as: IDE HDD Block Mode, HDD PIO 32Bits so. Large selection can speed up hard disk access speed and improve efficiency. The small-capacity hard drives are not suitable for use. If you are to grasp, you can choose Load BIOS Default Setup to use the BIOS default settings.
II crashes caused by software failures caused by software crashes
failure can be divided into two.
1. enable or disable the operating system crash when starting
freezes sometimes and hard drive BIOS settings. If the BIOS settings no problem. one reason may be the Config.sys and Autoexec.bat files in the. most of CD-ROM to blame. Config.sys and Autoexec.bat file, if the system mount a DOS real mode CD-ROM driver, then easily lead to crashes. This is because under real mode DOS to work reading CD-ROM BIOS when in operation to provide low-level service program. and WIN98 is using its own 32-bit protected mode drivers. easily lead to conflict between the two. Config.sys and Autoexec.bat file actually is not much in the WIN98 useful. so if you do not work under DOS, can remove them.
Another reason may be that the supporting documents WIN98 damage. boot is a step by step process, which can not be part of the error. WIN98 he is not flexible, and if there is a corrupted executable file or driver, it will be meaningless to stick to find, while also dead here. We can not and need to know all of the WIN98 support files, so the best way to deal with such matters is to reinstall the system.
shut down the system crash when the majority is set with certain operations and certain drive the process of setting improper. systems will be shut down before the exit program is being used and the driver, and Ye Hui 根据 当时 these drivers carry out a data write operation or the search back to the 动作 device, the set may cause improper Speaking in front of the useless search, the formation of Death. to solve this situation is at the next boot into the \to find fault equipment (in front of a yellow exclamation point) to remove it after reloading the driver can solve the problem.
2. running the application crashes when the situation is the most common. reason may be that process itself problems, may also be application compatibility with WIN98 bad conflict. obvious example is run in WIN98 DOS or WINDOWS 3.X who run a good 16-bit applications. WIN98 32-bit, though It is called compatible, but there are many places can not be with 16-bit applications coordinated. Microsoft is 不会 great efforts to study its 准备 give up to. So need not be best not to use 16-bit applications.
inappropriate deletion may cause the same crash. here is not used inappropriately refers to application software installation program to uninstall the anti-self. in WIN98 applications can not be removed under the DOS, as Deltree as everything will be fine. because the application software installed when 在 WIN98 WIN98 installation directory of links to establish some documents that in the end is what they know Only the application Cheng Xu, by Delete directories is not remove these files in the. leave them behind on system, a increase of Registry capacity, reduce the system speed; two often lead to unpredictable failures occur, leading to system crashes. It is noteworthy, and sometimes even if you uninstall the software the right way, can also cause crash risks. This is because the application software, sometimes to to share some documents with WIN98, no matter if you deleted indiscriminate, peremptorily deleting all, WIN98 support is likely to lose this file, resulting in reduced stability of the system.
sometimes run all the software are normal, but suddenly somehow between the crash, reboot then run these applications perfectly normal, it is a phenomenon of fake crashes. there is more reason for WIN98 memory resource conflict. we all know, software is running in memory, and close applications software can be free memory space. However, some application software due to design reasons, even if not completely closed after the release of memory, present a piece of software needs to use the memory base address, they will conflict. when multiple windows open simultaneously This is most vulnerable.
solution for these problems, we can not solve inherent applications, only abandoned. to develop good habits to uninstall, can not determine for themselves whether to delete the option not to be extremely careful. can remove the program with the aid of some professional remove. peacetime use of the window when not to have too many, application procedures in order to avoid competing for resources. when necessary, even if the computer has not failed, what the system should re-start, WIN98 is sometimes necessary to back and forth of God.
【B】 computer common fault – can not stop Generic volume r
we are not always met, \the u disk, mp3, mobile hard drive and other equipment, you want to safely remove it often appears on the map useless tips! some cases, turn off the corresponding window, refresh a few times, you can safely delete! However, in most cases we have forcibly pull out!
system we just need to turn off the preview function, this problem will not recur, and operational methods are:
double-click the My Computer folder options
tools m < br> m m task m using conventional traditional style windows folder, and then click OK on the line.
third method:
to \pressing the keyboard \\pop-up \- IE browser crashes
IE is that most computer users are using the Internet browser, and therefore a viruses, malicious programs that attack. Here are some simple and effective IE after the destruction of the self-repair method :
1, IE plug-Vandalism
Online reports that after normal shutdown, boot again, Windows XP system can not start properly. WindowsXP system is turned on, either in the start list, choose Normal or Safe Mode start, are not normally enter the system, and then automatically restart the machine, so the cycle, using the system restoration measures can not boot the system. After the analysis of the impact by the start of the file system can not \sys system file is not provided by windows, but a third-party driver files, file attributes in a certain Internet-related company information. drivers are generally the lowest in the system, and if a problem very easily lead to system instability. remind users: The phenomenon also is not a virus behavior, it will not spread. If this symptom occurs, do not panic, your system is not completely damaged, please use the following solution to fix the system:
If the existence of dual systems on your computer, log normal system, delete the% systemroot% \ system32 \ drivers \ CnsMinKP.sys file to; if your computer does not exist dual system, please use the following methods:
start using the system CD boot, and delete the system folder in the following file
% systemroot% \ system32 \ drivers \ CnsMinKP.sys
2, IE6 window kept open until the last crash
online soon, IE6 window to keep open until the final system to freeze up too much memory. This is because when you browse the web, in a script virus’s sake. script implementation of the virus can not do without WSH (full name of the \Call WScript.exe program, the program folder in Windows where, because most normal users will not use it, so you can uninstall the, so to prevent this type of virus intrusion.
repair method: In Windows 98, click the \window, uncheck \;, in the system directory (C: \ WINDOWS \ system32), the search WScript.exe file be deleted.
3, IE home page setting screen lock
malicious Web page can also modify your registry , set the key lock IE’s home page, so IE home page set many options gray, button is not available to prohibit users from changing back.
repair method: Click the \Open the registry, navigate to HKEY_CURRENT_USER \ Software \ Microsoft \ Internet Explorer branch, the new \\Microsoft \ Internet Explorer \ ControlPanel be under the \; SystemCertificates \in the IE toolbar button
illegal to add a malicious Web page can also be in your IE toolbar Department, add all kinds of illegal button.
repair method: Start IE, select the button on the toolbar illegal , then right mouse button pop-up menu, select \toolbar has a search engine tool button, click it to perform Web searches. IE default to use Microsoft’s search engine, if the IE search engine tampering by malicious Web site, if you click on the \to malicious Web sites.
repair method: Click the \name, in the right window, click \name, its key to a search engine’s website.
【d】 how to determine if your computer infected with a virus
computer often crashes, slow anomalies such as the use of a variety of antivirus software not effective, how to determine whether the computer is virus in trouble abnormal?
such examples are not uncommon, especially for the primary computer user. I on the combination of the following personal computer use and maintenance of enterprise network experience from several anti-virus to whom we introduce how to determine Shipi a virus, Xi Wang on Bangzhu identify \only some, the process of personal computer users in a variety of fault phenomenon occurs mostly because the computer’s own software and hardware failures, network of mostly caused due to permission settings. we can only fully understand the differences and similarities between the two in order to make the right judgments, in real time before the virus came to discover. Now I will briefly list were due to viruses and software and hardware failure caused some of the common symptoms of computer failure.
symptoms, was invaded the possibility of hardware and software failure probability
often crashes: the virus opens a lot of files or take up a lot of memory; instability (such as memory, poor quality and poor hardware overclocking performance); running the software takes up a large-capacity large amounts of memory and disk space; use some testing software (there are many BUG); hard disk space is not enough and so on; run the software on the network often crashes may be due to slow network speed, the running too, or their workstation hardware configuration is too low.
system can not start: the virus changes the hard disk boot information, or delete some startup files. such as the boot file is corrupted boot virus; hard disk is damaged or incorrect parameter setting; system file error artificially delete.
not open file: Virus changed the file format; virus modified the file links to location. file corruption; hard drive damage; file shortcut links corresponding to a change in location; the original edit file software deleted; if is the performance of the LAN Multi Zhong Wei server file storage location has changed, but service stations do not device Xin Ji Shi rinse the Neirong (Zhang Shijian Dakai resource manager).
Jingchangbaogao memory Bugou: Bing Du illegal Zhanyong large amounts of memory ; to open a large number of software; memory resources required to run the software; system configuration is not correct; memory is not enough in this respect (the current basic memory requirements for the 128M) and so on.
Tips hard disk space is not enough: a large number of virus replication files ( This encountered several cases in recent times, hey, a 10G hard drive installed WIN98 or WINNT4.0 system says no space, and a prompt to install software on the hard disk space is not enough. hard disk capacity of each partition is too small; installed a lot of great Capacity software; all software are concentrated installation of a partition among Zai; drive itself on small; if the system is in the local area network administrator for each user to set the workstation users in the \disc the size of the entire network, in fact, \file.
a large number of files of unknown origin: the virus to copy files; may be some software installed in the temporary files created; also may be some software configuration information and operating records.
start a black screen: the virus infection (remember most is 98 years of 4.26, I paid several thousand dollars for the CIH price, the day I first boot to the Windows screen to hang up the second and then turn it on nothing); display failure; graphics card failure; board failure; overclocking over; CPU damage, etc.
data loss: the virus to delete the file; hard disk has bad sectors; for restoration of documents covered by the original documents; if the network file, also may be due to other users accidentally deleted the .

use in notebooks in the face of various faults, if you do not know why, even with proficient computer expert who will also overwhelmed, headaches. here have identified a number of notebooks currently the most commonly encountered failure, and provides detailed solutions to help the reader solve the problem calmly.
Ⅰ. Laptop fan causes intermittent start
Laptop does not run any programs in the case, the system fan will intermittently turn, turn about 5 seconds, then stop 10 seconds, and then sub-5 seconds, again and again.
In fact, this is a normal phenomenon, because the laptop to save power consumption, and its cooling fan not always work, but when the notebook computer’s internal temperature reaches a certain level, will start the heat, it also caused when the switch Time to stop the phenomenon.
Ⅱ. Why start slow laptop
My laptop has recently been in a very strange fault, as follows: after boot hard disk light flashes, 5-6 minutes to enter the system after the system response slow access to the system, view the process has called the SYSTEM (not SYSTEM Idel Process) process, resource-99 % of resources, the size of 268KB ~ 272KB, CPU fan turned on (this machine is controlled fan, usually half an hour before they started playing CS), over 15 minutes before being picked resources SYSTEM Idel Process, the system returned to normal. the latest version of Kingsoft hegemony of finding drugs, no other suspicious processes, Skynet did not monitor suspicious connections. My machine is a virus or trojan in it? or system failure? according to the situation you mentioned, should belong to system failure, it is possible there is some kind of unknown virus program affect your system. the best solution is to back up your important data, then format the partition system, reinstall the operating system, so that should make your computer back to normal. In addition, General notebook computers will bring their own system recovery disk, but use the restore disk will restore the system to factory state, may cause data loss, so please be used with caution.
Ⅲ. Notebook computer heat dissipation
In the computer, CPU is the big heat, CPU faster, higher power consumption, the more heat. Generally used cooling method relies mainly on board and fan cooling. Motherboard at the bottom and top, each with a piece of metal cooling board. In the CPU position, with cooling systems to help absorb the heat generated from CPU. cooling fan, there does not start, low wind and high wind three files, depending on the CPU temperature dependent. The greatest advantage of this cooling method low cost, it is accepted by most PC manufacturers.
In addition to this commonly used cooling methods, keyboard, convection is a very creative way. We know, laptops are very thin and when the keyboard mounted to the motherboard, the keyboard and the motherboard will touch the bottom, just right for using the keyboard the bottom of the CPU heat conduction out. in the construction of the keyboard, each key has four holes, the heat was discharged through the button hole, button hole when the hot air from the exhaust, the cold air flow from the key hole to replace the hot air.
In many cooling technology, water-cooled heat pipe technology is IBM made a very effective cooling technology. The original idea was dug from the ice cream spoon, handle the heat through the air traffic control-oriented frozen ice cream, melting more soft can be dug out after eating. cooling tube with fiber and liquid heat medium (mostly water), pumping into the vacuum tube, a section close to the CPU, the other end away from the CPU. it works is: a vacuum state, the liquid thermal conductivity medium, low boiling point, if the pipe section is heated, the medium will evaporate, the tropics to the other end of the cooling flow back again, so again, the heat had been been taken away. cooling pipe has many advantages, not mobile parts, no noise, no consumption of energy, and can effectively work long hours.
In addition to IBM’s heat pipe technology, there are more characteristics of Toshiba notebook computers hot and cold plate cooling technology. Thermal efficiency is improved by about 6.5 times, allowing notebook cooling issues are effectively addressed. At present, many brand-name notebook computers are used heat pipe cooling, keyboard convection cooling, temperature control cooling fan 3 way.
Did not yet have the software to directly control the laptop fan to run, but by HTL instruction can effectively reduce the CPU’s heat .Windows2000/XP has built-in support for HTL instruction.
Ⅳ.
Notebook drive failure
Notebook drives the most common failure is mechanical failure, followed by the circuit design fault, and fault in the circuit caused by the user to adjust improper failure much more than the failure of damaged components, so dismantling or maintenance of optical equipment, it should not adjust the internal notebook drive various potentiometers. Notebook Optical Fault are mainly three categories: operational failure, accidental and inevitable failure fault.
1. Operational failures such as driver error or was not installed correctly in Windows or DOS cause is not found in laptop drive; notebook drive cable or jumper wrong can not be used to make notebook drive; CD line not connected can not listen to CD; notebook drive is not properly placed in the tray, causing not read the disk drive; disc cause picture distortion or dirt is not clear or stop, or mosaic is serious; the demolition of various internal drive caused by improper or loose connections caused by faults such as the breakdown.
2. Accidental fault notebook drives random failures, such as machines, integrated circuits, capacitors, resistors, transistors and other components of early failure or sudden damage, or some movement of mechanical parts often sudden damage, although such failures are rare However, maintenance and replacement must be able to troubleshoot, so occasional failure is also known as \3. Inevitability of failure in the use of notebook drives after a period of inevitable failures, mainly: the aging of laser diode, its reading time or even longer its reading; laser optics components such as dirty or worse performance, resulting in audio or video distortion or Death; mechanical transmission for wear, distortion, loose and cause trouble.
Inevitability of failure must be explained that the repair rate depends not only on the quality of products, but also on the user’s manual operation, and maintenance and use of the frequency and the environment.
Ⅴ. Other fault
First, do not power up (power light does not shine)
1. Check whether the external adapter is properly connected laptop, an external adapter is working properly
2. If the only battery-powered, check whether the battery model OE battery; battery is fully charged; battery installed correctly
3. Check the DC board is normal
4. Inspection, maintenance board
Second, the power indicator light, but the system does not run, LCD has no display
1. Hold down the power switch and continue to 4 seconds to turn off the power, then restart Check whether to activate the normal
2. External CRT monitor whether if
3. Check whether the plug-reliable memory
4. Clear the CMOS information
5. Try to replace the memory, CPU, charger board
6. Maintenance motherboard
3, shows the image is not clear
1. Testing whether the normal display brightness adjustment
2. Check the display drivers are installed correctly; resolution of the suitability of the current LCD size and type
3. Check LCD connection with the board is properly connected; check the LCD and the LCD connection is properly connected
4. Check backlight control board is working properly
5. Check the motherboard’s Northbridge chip exists the phenomenon of cold welding and Weld
6. Try to replace the motherboard
4, no show
1. Through the status indicator check whether the system is dormant, if it is dormant, press the power key to wake
2. Check the connection of the external display is normal
3. Checking whether to join the power
4. Check LCD connection to connect both ends of the normal
5. Replacement backlight control board or LCD
6. Replace the motherboard
5, the battery power in the Win98 / Win Me does not properly identify
1. Make sure the power management features in the operating system to start and set the correct
2. To charge the battery for three hours before use
3. In Windows 98 or Windows Me will the battery charge and discharge two
4. Replace the batteries
6, touch pad does not work
1. Check whether there is an external mouse to access and use the test program detects whether it is normal MOUSE
2. Check whether the line is properly connected touchpad
3.
Replacement touchpad
4. Check the keyboard control chip, the existence of the phenomenon of cold welding and Weld
5. Replace the motherboard
7, serial device does not work
1. In the BIOS settings to check the serial port is set to \2. With SIO test program detects whether it is normal
3. Check the serial device is connected properly
4. If the serial mouse, check the BIOS settings close the built-in touch pad; in Windows 98 or Me, check Device Manager to identify serial mouse; check the serial mouse driver is installed properly
5. Replacement serial devices
6. Check the motherboard’s south bridge chip, the existence of the phenomenon of cold welding and Weld
7. Replace the motherboard
8, parallel port device does not work
1. In the BIOS settings check the parallel port is set to \2. With the PIO test program detects whether it is normal
3. Check all the connections are correct
4. Check the external device is turned on
5. Check the printer mode is set to
6. Check the motherboard’s south bridge chip, the existence of the phenomenon of cold welding and Weld
7. Replace the motherboard
9, USB port does not work
1. In the BIOS settings check the USB port is set to \2. Re-plug USB devices, check the connection is
3. Check the USB port driver and USB device drivers installed correctly
4. Replacement USB device or contact the USB device manufacturer for technical support
5. Replace the motherboard
10, sound card not working properly
1. With the AUDIO test program detects whether it is normal
2. Check the volume adjustment is correct
3. Check the sound source (CD, tape, etc.) are normal
4. Check the sound card driver is installed
5. Check speaker and microphone connection is working properly
6. To replace the sound card board
7. Replace the motherboard
11, Fan question
1. With the FAN test program detects whether it is normal, boot the fan works
2. FAN line is properly connected
3. FAN is good
4. M / B is to weld the part of the CONNECTER
5. Motherboard problem
12, the keyboard issue
1. With the keyboard test program tests to judge
2. The keyboard cable is plugged
3. M / B parts CONNECTER whether the needle distortion or other undesirable
4. Motherboard bad
Software fault classification
13, the driver class
1. Show abnormal
2. Sound card does not work
3. Modem, LAN can not work
4. QSB can not use
5. Did not load drivers for some hardware or drivers loaded incorrectly and can not properly use the
14, the operating system type
1.
Slow down the operating system
2. Sometimes crash
3. Models do not support an OS
4. Not to shut down
5. Dormancy crash
15, the application class
1. The application of conflict and freezing
2. Application can lead to system shutdown
3. The application of conflict resulted in the normal use
More on the laptop to use some common faults, where thanks to the internet with advanced information technology can enable better and more convenient for users to find fault in the on-line solution, after all, a person’s power is limited, the power of the people is unlimited of, say fault phenomenon, someone know why and help you.