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How to repair the common faults of the video card?

How to repair the common faults of the video card?
Update Time:2019-10-14
How to repair the common faults of the video card?
Common fault one: no display at boot
This type of failure is usually caused by poor contact between the graphics card and the motherboard or a problem with the motherboard slot. For motherboards with integrated graphics cards, if the memory shared the main memory, you should pay attention to the location of the memory module. Generally, the memory module should be inserted in the first memory module slot. There is no display failure due to the reason of the graphics card. Generally, a long and two short beeps will be issued after booting (for AWARD BIOS graphics cards).
Common fault 2: display flower screen, can't see the handwriting
Such failures are generally caused by the fact that the display or graphics card does not support high resolution. When the screen is displayed, you can switch the startup mode to the safe mode, and then enter the display settings under Windows 98. In the 16-color state, click the “Apply” and “OK” buttons. Restart, delete the graphics card driver in the normal mode of Windows 98 system, restart the computer. You can also enter the safe mode. In the pure DOS environment, edit the SYSTEM.INI file, change display.drv=pnpdrver to display.drv=vga.drv, save the disk, and update the driver in Windows.

Common fault 3: The color display is abnormal. The faults generally have the following reasons:
1. The display card is not in good contact with the monitor signal cable.

2. The display itself is faulty.

3. In some software, the color is not normal when running. It is common in old-fashioned machines. There is an option to check the color in the BIOS, and it can be turned on.

4. The graphics card is damaged.

5. The display is magnetized. This type of phenomenon is generally caused by excessive proximity to objects with magnetic properties. After magnetization, the display may be deflected.

Common fault four: crash
Such failures are generally seen in the incompatibility between the motherboard and the graphics card or poor contact between the motherboard and the graphics card. Incompatibility between the graphics card and other expansion cards can also cause a crash.
Common fault five: abnormal noise or pattern on the screen
Such failures are generally caused by problems with the graphics card's memory or poor contact between the graphics card and the motherboard. You need to clean the gold finger of the graphics card or replace the graphics card.
Common fault six: graphics card driver is missing
The graphics card driver is loaded. After running for a period of time, the driver is automatically lost. This type of fault is generally caused by poor quality of the graphics card or the graphics card is not compatible with the motherboard, which makes the graphics card temperature too high, resulting in unstable system operation or crash. Only replace the graphics card.

In addition, there is a special case where the graphics card driver was previously loaded, but after the graphics card driver is loaded, it crashes when entering Windows. Other models of graphics cards can be replaced. After loading their drivers, insert the old graphics card to solve. If this type of failure cannot be resolved, the registry is faulty, and the registry can be restored or the operating system can be reinstalled.
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