电脑开机故障症状与处理（Symptoms and treatment of computer failure）.doc

电脑开机故障症状与处理（Symptoms and treatment of computer failure） Symptoms and treatment of computer failure Fault phenomenon 1: turn on the power, press the boot button, the computer has nothing to do. Analysis: the power supply should be supplied to the main board and the hardware, without any movement indicating that the power supply is out of order. (including motherboard power supply). 1, the city power supply problems, please check the power supply socket is normal, the power cord is normal. 2, chassis power problems, please check whether there are 5 volt standby voltage, the motherboard and the power supply between the line is loose, if not measuring voltage, you can find a power exchange try. 3, the motherboard problem, if the above two are no problem, then the possibility of the motherboard failure is relatively large. First of all, check the motherboard and boot button connection is loose, the switch is normal. Switch the switch short and try it on. If not, only the replacement of a motherboard try. Fault phenomenon two: turn on the power, press the boot button, the computer has nothing to do. Analysis: the power supply should be supplied to the main board and the hardware, without any movement indicating that the power supply is out of order. (including motherboard power supply) 1, the city power supply problems, please check the power supply socket is normal, the power cord is normal 2, chassis power problems, please check whether there are 5 volt standby voltage, the motherboard and the power supply between the line is loose, if not measuring voltage, you can find a power exchange try. 3, the motherboard problem, if the above two are no problem, then the possibility of the motherboard failure is relatively large. First of all, check the motherboard and boot button connection is loose, the switch is normal. Switch the switch short and try it on. If not, only the replacement of a motherboard try. (Note: you should try to find the same type or board of the same chip