Case analysis of computer crash caused by computer power aging

Computer crash symptom: Buy brand machine, CPU for Celeron D 1.7GHz, 128MB DDR266 memory, 40GB Seagate Hard Drive, later upgraded with a 128M memory, built-in 56KMODEM and TV card. Then the system started shortly after the crash, the monitor black screen no signal, the optical drive light long bright. Whether into the WIN98 system, with the system disk boot, or into the CMOS system will appear this fault, once the crash either reset key or power button can not shutdown, only pull the latch and must wait for a certain period of time before the boot.

Computer Failure Analysis: Because this machine just installed the operating system, so it is not possible to be caused by software failure, in order to troubleshoot software failures, notes or reinstall of the operating system, the problem remains. Considering that the CMOS settings can also cause a panic condition, then restore CMOS initial settings, open the chassis to remove other cards to minimize the boot, replace the memory, check the CPU fault still, using a multimeter to measure the internal power supply plug voltage is normal, because this machine for ATX power supply to the motherboard plug can not unplug the measurement, So there is no measurement. Analysis of the machine purchase has been more than two years and internal configuration board more, the power supply in the long-term high load may be a power supply part of the fault.

Computer troubleshooting: Because the brand home computer, can not carry out the replacement of the power supply part of the inspection, had to take the mainframe computer company to deal with, the results of computer companies on the operation of all normal and continuous operation for several hours did not appear the crash phenomenon. Back home after the boot failure is still, start to think it will not be related to the mains? The measured mains voltage up to 240V higher than the normal voltage, to find a voltage regulator coupled with the subsequent dynamic failure to eliminate the normal operation for several hours. Analysis of the aging of power components, long-term high load operation has not been able to play a stabilizing effect, household and did not configure UPS power supply caused by high voltage can not work properly. This failure has been satisfactorily resolved.

Conclusion: The power supply is the source of the whole energy of the computer, and also the place where faults are more frequently. For better use of computer home machine should also be configured UPS power supply, the purchase should be a better power to choose the best brand power, so you can avoid the long-term use of similar problems appear to ensure the normal operation of the computer.