To the computer to replace the 9800GT graphics card, but after the installation of the total running panic phenomenon, sometimes even when the start of the black screen. The computer carried out a virus killing, and no virus. The system has also been reinstalled and the BIOS settings have been checked for unusual conditions.
The new video card was tested with other computers, and all programs worked correctly. Replace the power of another computer to the faulty machine, and everything is back to normal.
This fault is due to bad power quality, power quality is not good, the power card slots, and 9800GT of electricity consumption is relatively large, the slot power supply is insufficient, resulting in the crash. Users can replace the quality of better power, in the purchase of power, not too much money, only to buy quality clearance of the power to normal use.