实用电脑维护资料（Practical computer maintenance data）.docVIP

实用电脑维护资料（Practical computer maintenance data） Description: in the process of using the computer, you will inevitably encounter a computer failure, the following is my computer problems encountered in the Internet to find some solutions and information, including the beginning of the alarm, The screen prompts some errors that you cant read You want to, after a little help. ! Diagnosing computer failure with boot information Computer failure is common, there are many faults in the machine start stage can be confirmed, especially a hardware failure, can alarm and display information to determine the machine failure issued by computer during startup. Below, according to the computer startup process, introduces the types and troubleshooting methods of common hardware faults. The first step in computer startup, of course, is to turn on the power, and the system performs self check and initialization under the control of the motherboard BIOS. If the power supply is working properly, you should hear the voice of the rotation of the fan power supply, the power indicator on the chassis on hard disk; and the keyboard Num Lock three light is lit up (and then off); to display a slight Shua sound (it is a magnetic dissipation the sound is much smaller), this is a sign of the signal sent to the display card. There are common faults at this stage: Fan does not rotate, but can not see the power indicator light. Sure, its power. Check the power plug at the back of the case. Plug it in and pull it out and plug it in. Of course, electrical outlets, UPS fuses, and other parts should also be carefully examined. Power indicator light, the screen does not respond, no alarm. You should check the motherboard and CPU. Because at this point the system is controlled by the motherboard BIOS, the computer will not issue an alarm sound before the end of the base self-test, and the screen will not show any errors. At this point, from the following aspects of inspection: (1) check the Flash ROM chip