Five, graphics card
Common faults 1: boot no display
Such faults are generally because the graphics card is in contact with the motherboard or the motherboard slot is caused. For some main boards of the integrated graphics card, if the shared master memory is displayed, pay attention to the location of the memory module, generally in the first memory strip slot should insert a memory bar. Due to the power-on fault caused by the graphics cause, two short beeps will be issued after booting (for Award Bios graphics cards).
Common faults 2: Show flower screen, not clear
Such faults are generally caused by the display or graphics cards do not support high resolution. The startup mode to the security mode can be switched when the screen is placed, and then the display settings will be entered under Windows 98, select "Apply" and "OK" button under the 16-color state. Restart, delete the graphics driver in the normal mode of Windows 98 system and restart your computer. You can also enter the security mode. In the pure DOS environment, edit the System.ini file, change Display.drv = pnpdrve to display.drv = VGA.DRV, the save is exited, and the driver is updated in Windows.
Common fault three: color display is not normal
This type of failure is generally the following reason:
1. Display card with display signal line
2. Display itself
3. The color is not normal when running in some software, generally common in the vintage machine, there is a check color in the BIOS, open it
4. Damage of graphics;
5. The display is magnetized, and such phenomena is generally due to the excessive approach of magnetic properties, the magnetization may also cause deflection in the display screen.
Common fault four: crash
This type of failure is generally more common in the incompatibility of the motherboard and the graphics card or the motherboard and the graphics card contact; the graphics card is not compatible with other expansion cards.
Frequently fault five: There is an abnormal miscellaneous point or pattern on the screen.
Such faults are generally due to the problem of appearance of the graphics card or the problem of contact with the motherboard. The graphics card finger is required to clean the graphics card.
Common fault six: the graphics driver is lost
The graphics card driver is loaded. After a period of operation, the driver is automatically lost. This fault is generally due to the poor quality of the graphics, which is not compatible with the motherboard, so that the graphics temperature is too high, resulting in unstable system operation or crash, at this time Only the graphics card is replaced.
In addition, there is a special type of special case, which can be loaded into the graphics driver, but after the graphics card driver is loaded, the crash appears when entering Windows. The graphics card that can replace other models is inserted into the old graphics card after loading its driver. If this fault cannot be resolved, the registry fault will be described, and the registry can be restored or reinstall the operating system.
Six, display
The display is long, and various small harsh will follow. Experts believe that it is actually very simple to solve these small problems, and you can see the fault in a pair of eyes.
Common faults 1: When the computer just turned on, the display of the display was very pleasant, sometimes even the icon and text could not see, but it will return to normal after a two minutes.
This phenomenon occurs in humid weather, is the inside of the display. To completely resolve this problem, you can use the moisture-proof sand in the food package to string, and then open the back cover of the display, hang the moisture-proof sand in the vicinity of the noodles of the noodle. In this way, even in wet weather, there will be no longer appear again.
Common faults 2: After the computer is turned on, the display only smells his painting, the paint is black. It is necessary to wait for dozens of minutes before you can appear.
This is caused by the leakage of the image capture, and must be replaced. The rear cover can be seen in a small circuit board of the image tail, and the pedestal is welded to the board. Be careful to remove this board, then weld the pedestal, go to the electronic store to return to the same pedestal, and then weld the tube to the board. At this time, don't rush to put the circuit board back, you must first find a small piece of sandpaper, and carefully wipe the pin on the tail tail. In particular, pay attention to the oxide layer on the pin. If the wiper is not clean and quickly returned. Tell the circuit board back. Common faults 3: There is always an uninterrupted clutter or line on the display screen, and the annoying noise in the speaker.
This phenomenon is mostly the anti-interference difference between the power supply. If you are too lazy, you can replace a new power. If there is enough hands-on ability, you can try to replace the power filter capacitor, which often works; if the effect is not obvious, you can change the switch tube.
Common fault four: display flower screen
This problem is more caused by the graphics card. If it is a newly changed graphics card, it may be that the quality of the card is not good or not compatible, and there is no correct driver. If it is an old card, it is possible to be a new memory and the original memory model parameters are not.
Common fault five: display black screen
If a graphics card corruption or a display disconnection causes no signal to transmit to the display, the indicator of the display will keep the signal without receiving the signal. If the resolution is set too high, the black screen will appear in the maximum resolution of the display, and the smaller is destroyed, but the current display has a protection function, which is automatically protected when the resolution exceeds the set value. In addition, hardware conflicts can also cause black screens.
