What can be caused by computer graphics aging?

Symptom: Boot normal display motherboard logo, BIOS Scan, after entering Windows XP monitor black screen.

Because the fault machine is a machine for sharing printers within a LAN, the network uses other functions to access the printer physically connected to the machine in the case of a black screen. Therefore, we determine that the system has been properly activated, black screen for the reason locked in the display, graphics and graphics drivers. We are in the first software after the principle of hardware restart the computer, press F8 into the safe mode, found that the fault is still, and then replace the other normal use of the monitor after the boot, failure unresolved. Then there is only the video card failure. Open the chassis found that its independent video card seriously dust, and hot. Disconnect the stand-alone video card and troubleshoot after using the motherboard integrated video card.

Such failures are caused by the aging of the independent graphics card, some of the fault card after the observation can be found obvious capacitance bulge, slurry and other phenomena, but some appearance can not see, if necessary, replace the method to judge the fault.