Your side of the computer repair experts

Graphics computer system is one of the important parts, it will be CPU processed data signal, \not high, but with the application number and performance of the upgrade, graphics card failure rate is also increasing. while the monitor as the main output of the computer equipment, its quality is directly related to use of good or bad effect, but it is – Some of my friends are still relatively unfamiliar. Here’s the real failure on their common \graphics driver not properly installed
we install graphics driver, we often encounter the prompts to install the failure of trouble, and different versions of the driver does not work, how to correctly install the graphics driver then? (1 ) when the machine starts, press \, in particular, Matrox graphics card, when this is set to \After the operating system installed, be sure to install the motherboard chipset patch, especially for the use of VIA chipsets, the motherboard must remember to install the latest patches 4IN1. (3) install the driver: Go to \Manager \Programs \Find in the pop-up window to find the folder where the driver, click \Click \not in place, often also cause driver installation errors, so when installing the graphics card, be sure to pay attention to fully inserted into the AGP graphics card slot cheat.
2, black screen when the computer starts fault
start the computer, if the display phenomenon appears black, and the case sent a long two short horn alarm sound, the note cards is likely to lead to failure. First of all, to ascertain whether the failure caused by poor contact as graphics: turn off the power, open the case, the graphics card to pull out Then use the hair brush to clean the dust on the graphics card out, especially pay attention to the graphics card fan and heat sink to dispose of the dust. then wipe board with eraser back and forth a \will be re-installed graphics card (be sure to baffle and tighten the screw), to see whether the fault has been resolved. In addition, the display card for poor contact, such as poor quality of the chassis number of the gap behind the baffle and the motherboard AGP slot can not be aligned , in force on the screws tight graphics card after a period of time may cause deformation of graphics card PCB fault, try to release the video card as long as the screw. If you use the motherboard AGP slot is not very good material, AGP slot and the graphics card PCB can not be in close contact, you can use duct tape to show card door fixed, not sure if it is put that graphics card is installed on both sides of the chassis, the display card in the middle baffle. If you display card cheat oxidation problems encountered, and the use of rubber clean rust stains after display card does not work, then you can use the rust cleaning the finger, then gently before putting in the cheat on a layer of solder, to increase the finger thickness, but must be careful not to short circuit between the adjacent finger.
if not solve the problem by the above method, then there may be graphics card and motherboard compatibility issues, then you can also get a graphics card plugged into the motherboard , if the failure to lift, it indicates compatibility problems. Of course, users can also plug the card in another motherboard, if not failure, it indicates this card does exist with the original motherboard compatibility issues. For this failure The best solution is for a graphics card or motherboard. there is a situation worth noting is that graphics hardware problems, and generally display memory chip or burn, it is recommended graphics card to try to get another machine If the problem can only confirm that the graphics card replaced.
3, shows the failure
Huaping Huaping is a common graphics display failures, most of the graphics Huaping failure caused by graphics card itself. If display, then turn on the Huaping should first check the card is not the existence of heat dissipation, hands touch the memory chips, temperature, graphics card fan to see whether the stall. again to check the motherboard’s AGP slot and dust to see whether the oxidation of cheat cards, and then can get rid of the dust situation, with the eraser to the oxidation of part of the finger polish. If the heat does have problems, we can use another fan, or in memory the installation of the heat sink solutions. If you are playing games or doing 3D, then when Huaping, we must take into account is not due to graphics drivers and the process itself or the driver is not compatible with the existence BUG caused, and can change a version video drivers to try. If the above does not work, you can try to refresh the graphics card BIOS, graphics card manufacturers to see if there are no home page to download the updated BIOS. but to pay attention to – the same firms the same type of graphics card BIOS file often it is not the same, so that BIOS update or a certain risk.
is also the case, because the display or video card does not support high-resolution display Huaping often also cause failure. When such a failure that we can Switch boot mode to safe mode, in Win 98 into the display settings, in 16 color mode Click \, and then restart the computer to. of course, can also be in a pure DOS environment, edit the SYSTEM.INI file, display.drv = pnpdrver to display.drv = vga.drv later, save the file out, and then update the driver in Windows in procedures that solve the problem. In addition, the expanded memory can easily lead to improper Huaping, in order to avoid trouble – should be used in the expansion of the same brand memory, the same speed memory.
2, CRT monitors common failure
will be most commonly used or CRT monitors, but with longer duration of use, CRT monitors internal components will change some parameters, resulting in display fail, many of these failures can be by adjusting the display of some internal stressed components solve. But since there are high voltage power supply monitor, relatively serious problems have been detected should be sent to professional maintenance point of maintenance, rather than their own dispose, in order to avoid fire, personal injury, and dangerous.
1, display appears color cast problem
display there is the phenomenon of color cast we often encounter problems, the causes are: display near the magnetic materials are magnetized; moving display, to let the machine deflection coil shift, and produce color pure bad; degaussing circuit failures. of course should first rule out the graphics card and display the signal line, a lot of time to signal poor contact will result in display color cast problems arise.
and in most cases is likely to be magnetized led display . CRT display will be a strong magnetic field the magnetization what color cast problems arise, such as bass speakers without magnetic shielding, are generally good with some of the degaussing monitors its own function, but a bit more serious magnetization can do nothing. then you need to use special equipment to degaussing. deactivators can be purchased can also be made. But no matter what kind of degaussing law, his friends would pay attention to safety. degaussing device is powered hand constantly shaking, and gradually close to the screen, on magnetic parts can be repeated, and then back while shaking degaussing device side to about 2 meters away from the screen and then turn off the power. every time power should not be too long, if the bad effect of a degaussing can be repeated several times.
if After moving the display as the color offset caused by the problem, we can open the back cover will display deflection coil back to its original position, and deflection coil screw can be tightened. degaussing circuit for damage due to machine due to poor color purity can be first check whether the damaged thermal demagnetization resistance, to remove it, use the hand like a \at 8 ohms or more than 50 shows demagnetization resistance in Europe and the RTC components are bad, there is no way the only renewal. as degaussing resistor normal, then it should focus on examination of degaussing coil wire, plug, socket whether between loose and poor contact problem.
addition, there is a very easy to overlook the failure of reason – too much dust can cause the screen display when the reddish white! such failures have occurred within the warmer color temperature display (Many monitors can set your own color temperature), so that the white face (and similar color) reddish failure is best to first clean your screen and then click Check for other, if the fault disappears – you can walk less tortuous path it! Of course, some models of the brightness value is set too low will cause the \display refresh rate can not be adjusted, I am afraid my friends have encountered it! can not adjust the monitor refresh rate actually mostly because we do not choose the correct display type or video card driver is not installed correctly created. Display Type Selection often easily overlooked, and many users will display type is set to \does not recognize the display, should be the default state according to the most conservative set (60Hz). The solution is in the Display Properties, select the correct display type, if you are using Windows does not recognize, and I could choose a performance close to product substitution. If the reason for the driver, the user can re-install the drivers, because sometimes suddenly crashes, the card’s driver is lost.
Again, the display refresh rate not set too high, exceeding the standard refresh rate too much, does burn display or shorten its life. this display is best to install its own drivers, do not blindly use the high-end display driver. Second, Windows in \Do not remove, or cause users to use the monitor does not support the refresh rate.
3, display screen will display jitter sometimes inexplicable failure
shake up the screen and you keep seeing the jitter can not know For whatever reason, is not it annoying ah! this state will cause eye fatigue of computer users, computer users over time will be brought to the eye. caused by reason of such failure in the following areas: (1) bad power supply or power supply equipment has been aging: often no-name computer components used in power supply, material is bad, likely to result in poor or Gongdian computer capacity to keep up the circuit, when the system is busy, the display screen jitter in particular, appears phenomenon. computer when the power supply equipment is aging, are likely to cause the same problem. (2) Monitor refresh rate settings are not correct: the monitor resolution and refresh rate is set too high or too low, then such failure may result in , so you can set the resolution and refresh rate try intermediate values (Note: long-term work on overclocking the state will occur in certain components of aging and failure, but quite difficult to find the point of failure). (3) video card connection problem : Heavy inserted display card, failure can be resolved. (4) virus trouble: Some computer viruses may disrupt the display. (5) Windows 95/98 system write cache after the cause: If is for this reason that in the Control Panel → System → Performance → File System → Troubleshooting disable the drive after all the write-caching, you can solve the problem. (6) damage to the power filter capacitor: open the case, if you see power supply filter capacitor (the biggest kid on the circuit board capacitor) Top muster shows have a bad capacitor. another capacitor problem solving. (7) speakers and monitors placed too close: Some of the speakers will interfere with the magnetic field effect display properly. (8) power transformer and chassis from the monitor too close: Many peripheral power transformer (scanner, printer, etc.) work will cause more electromagnetic interference, causing screen jitter. the power transformer on the chassis and the monitor away from the place, the problem can be solved.
3, liquid crystal Monitor Fault
1, the water ripples and Huaping problems arise
first thing to do carefully check whether there computer peripheral sources of electromagnetic interference, and then replace a graphics card, or receipt of another computer monitor, confirmation card itself is no problem, then adjust the refresh rate. If you exclude the above reasons, it is possible that the quality of the LCD monitor problem, such as the thermal stability of the bad issues. wave of water is a liquid crystal display appears more common quality problems can not be solved, the proposed replacement or repair as soon as possible.
some LCD Huaping occur during startup problems, gives the impression as if there are high-frequency electromagnetic interference, like writing on the screen is fuzzy and jagged. This phenomenon is generally due to the graphics card does not have digital interfaces, and through an internal digital / analog conversion circuit and the VGA connector on graphics card. This form of connection although the signal matching to solve the problem, but it brought susceptible to interference there distortion. The reason is mainly because the LCD display itself is difficult and the input clock frequency analog signal synchronization clock to keep one hundred percent, especially in the analog sync signal frequency of the changing times, if the LCD monitor at this time synchronous circuit, or connected with the graphics card sync signal transmission lines appeared short circuit, poor contact and so on, can not be promptly adjusted to maintain the necessary follow-up synchronization relationship, then the problem occurs Huaping.
2, Display resolution rate set incorrectly
principle as LCD and CRT monitor display is completely different, it belongs to a direct one correspondence of pixels displayed. work in the best resolution liquid crystal display under the analog output of the graphics display signal through processing, transformation to the specific address information (the pixels on the screen of the absolute address) of the display signal, and then into the LCD panel, added directly to the display signal corresponding to the pixels on the drive pipe, some with memory search similar sites and write. so LCD screen resolution is not arbitrarily set, but the traditional CRT monitors support for the resolution of the more flexible. LCD can only support so-called \real resolutions to show the best image. When set to true resolution Yiwai resolution, generally by increasing or reducing the scope screen, display results remain unchanged, the excess is a black screen dealt with. Yejing display work in low- Under resolution 800 * 600 when the pixel if the display is still one correspondence with the display, then it can only screen in the center of the screen narrow the center of that 800 * 600 pixels to display, although the picture is still clear, but the display area is too small, not only in the sense that not too comfortable but also more expensive liquid crystal display panel is a tremendous waste. Another interpolation method can also be used, regardless of what resolutions remain in full-screen, but this time display will be greatly reduced. Also set the refresh rate of LCD picture quality with a certain relationship. my friends according to their actual conditions, set the appropriate refresh rate, normally set to 60Hz or better.

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