Common fault diagnosis and processing method of server power supply

If the CPU is a strong heart of the computer, then the power is its energy center. Power in the PC computer is not the user's attention, but it is this often overlooked product, but for the CPU, memory, optical drive and other computer equipment to provide a stable, continuous current. If the power supply is out of the question, it can not provide energy to other accessories, it will affect the normal operation of the computer, and even damage the hardware. A large part of a computer malfunction is caused by a power supply. Therefore, do not underestimate this price is not high accessories, careful care of it! I long time as a computer maintenance work, accumulated a number of computer failure to judge the experience, here and everyone to share.

First, the power supply damage or inferior power supply to other accessories to bring serious consequences

1, the capacity of the hard disk to appear bad track. A bad power source can easily lead to a false bad drive, which is usually repaired by software. In such cases, first check the power supply. If the problem of power supply is confirmed, the reliable and stable new power supply should be replaced.

2, optical drive reading disc performance is not good. This situation generally occurs in the newly purchased computer or the newly bought CD-ROM, the reading of the disc with a huge hum, troubleshooting the optical drive, it is likely that the power supply is faulty. This failure is usually caused by a lack of power supply, which requires the replacement of a larger power supply.

3, overclocking is not stable. Due to the CPU overclocking work, the stability of the power requirements are very high, if the power quality is poor, after overclocking the computer, often appear suddenly crash or restart phenomenon. Generally as long as a new power to replace a larger power on it.

4, the host often strange and wonderfully restarted. It is possible that power is not enough power, power supply is not enough to drive all the computer equipment to work properly, resulting in system software run errors, hard disk, optical drive can not read and write, memory loss, etc., so that the machine restarts.

5, the computer running with "roaring" noise. At this time, the problem generally occurs in the power supply of the fan, so that the noise increases, if the computer often does not open, fan above dust accumulation too much, it may appear this phenomenon, the solution is to turn on the computer, remove the power, the fan removed from the above, dust. And then re-installed, the general noise will be eliminated after the boot.

6, the display has water ripple. It is possible that the electromagnetic radiation of the power supply, affected by the magnetic field, interference with the normal display of the display, if the long-term attention, the display may be magnetized.

If your computer in the use of the above failure, then please check and repair your power as soon as possible, otherwise it will cause a greater loss. For a more intuitive introduction of power failure caused by the trouble, here the author by the way I encountered several power failures.

Fault one: The system crashes, the original power supply aging caused by the cause of the failure: a 2002 purchase of the brand machine, the CPU for the Celeron D 1.7GHz, 128mbddr266 memory, 40GB of the Seagate hard disk, and later upgraded to install a 128M of memory, configured with a built-in 56KMODEM and TV card, The fault is there. Specific performance for the system startup soon after the crash, the monitor black screen no signal, optical drive light long light. No matter into the WIN98 system, with the system disk boot, or into the CMOS system will appear this fault, once the crash whether the reset key or the Power key can not shut down, only pull the latch and must wait a certain time before the boot again.

Failure Analysis: Due to this machine just installed operating system, it is not possible to be caused by software failure, in order to troubleshoot software failures, notes or reinstall operating system, the problem remains. Considering the CMOS settings will also lead to the situation of the crash, so restore the initial CMOS setup, open the chassis to remove other cards to minimize boot, replace memory, check the CPU failure is still, with a multimeter to measure the internal power supply plug voltage is normal, because this machine for the ATX power supply to the motherboard plug can not unplug the measurement, therefore no measurement. Analysis of the machine has more than two years and the internal configuration of the Board more, power supply in the long-term high-load operation may be the power part of the fault.

Fault resolution: Because it is the brand home computer, unable to perform the replacement of the power part of the check, had to take the host computer company to deal with, the results of the computer company running all normal and continuous operation for several hours did not appear in the freezing phenomenon. Back home after starting the fault still, start to think not with the electricity has relations it? By measuring the mains voltage up to 240V higher than normal voltage, find a regulator plus a start-up trouble-shooting, for several hours in a row normal operation. Analysis for the power components aging, long-term high-load operation has not been able to play a stabilizing role, the home is not configured UPS power supply caused by high voltage does not work properly. The fault has been satisfactorily resolved.

Conclusion: Power supply is the source of the whole computer energy, but also the place of fault. For better use of computer home machine should also be configured UPS power supply, the purchase should choose a better power of the famous brand power supply, so you can avoid the long-term use of similar problems in the process to ensure that the normal operation of the computer.

Fault two: The computer self-energized cause voltage instability caused by the failure phenomenon: the author's computer configuration for the Pentium 42.0GHz processor, MSI 845PE Motherboard, Seagate 80GB hard disk, installed a network card and a built-in cat. In the summer, the computer for a few days in a row of sudden automatic power, the specific performance of the LED light, the chassis fan hum straight, the display is not displayed.

Repair and resolution: Before the computer shut down the power plug straight did not pull, also straight did not appear similar fault I first re-installed the system, can after a few days after the failure is still, the possibility of excluding software failure of the author's motherboard has "d-led" function, the system from power-on to the boot system every step of the process to detect the opening  Found in the host auto-power, "d-led" of the four detection lights for all red, indicating that the host is only electricity, no other work. Because the host automatically powered up after the display is not displayed, so carefully read the manual, found that the motherboard CMOS settings in the Power management settings (Power Managementsetup) in the resume Onring/lan the default value of "Enabled" thinking inside the chassis of the cat-- is not the summer night voltage instability, so that the inside cat received the wrong signal and caused the host to automatically power it?   Immediately reboot into CMOS settings view, sure enough Resumeon Ring/lan item set to "Enabled" then changed to "Disabled" after the disk restart, the failure to eliminate.  Conclusion: The author of the Power plug for a long time, coupled with a large summer voltage fluctuations, resulting in the occurrence of this type of failure from this, the author after the use of the computer will be the power plug unplug, also be eaten cut, long wisdom Bar! How, through the above two faults, you will get some revelation. Yes, the power is seemingly and inconspicuous accessories, once the problem, also let you can not use the computer, so we buy the power when we must buy those good quality products, as far as possible to choose a large rated power products, to prevent future upgrades due to insufficient power supply caused by a variety of failures. AC qq288106415

Common fault diagnosis and processing method of server power supply