How to solve the sudden shutdown of a desktop computer

How to solve the sudden shutdown of a desktop computer

A solution to the sudden shutdown of a desktop computer

1, the main engine switching power supply plug loose, bad contact, not plugged

This kind of situation, most will appear in the DIY machine, the host power supply line with the power cord has not been 3C certification, and the power outlet does not match. When we shake the table or touch the host will appear when the host automatically restart, usually accompanied by a slight electric spark "PA" sound.

Workaround: Replace the high quality 3C authentication power cord.

2, motherboard power supply ATX20 socket has virtual welding, poor contact

This fault is not common, but it does exist, mainly in the normal operation of the host, moving the ATX20 pin plug to see if the host will automatically restart. At the same time also to check the power of the 20-pin plug inside the reed has oxidation phenomenon, it is also easy to lead to contact resistance, poor contact, causing the host to panic or restart. Sometimes also need to check the 20-pin plug the end of the connection line, is reliable.

Solution: If the motherboard solder point virtual welding, directly with the soldering iron can be. Note: In the motherboard, hard disk, graphics cards and other computer board welding, must be good grounding soldering iron, or unplug the power plug when welding. If the problem is a power supply, it is best to replace a good power supply.

3, CPU problems

CPU internal part of the functional circuit damage, two cache damage, the computer can also start, and even into the normal desktop for normal operation, but when carrying out a special function will restart or panic, such as drawing table, play VCD, play games and so on.

Solution: Try to screen the two level cache (L2) or the first level cache (L1) in the CMOS, see whether the host can run normally, or simply use a good CPU to replace the elimination. If the screen can be normal operation, or can make do with the use, although the speed is slower, but will be able to save money.

4, Memory problems

If a chip is not completely damaged on the memory bar, it is likely to pass the self-test (most of which will have a post), but at run time will be due to the high memory value caused by the failure of the function and unexpectedly restart. Most of the time when memory corruption, open the opportunity to alarm, but the memory is not damaged after the alarm, no power failure is still available. It is best to use the elimination method to quickly determine the fault area.

Desktop computer suddenly shutdown solution Two

Check to see if there is a hardware problem: can check the power supply, power supply shortage this aspect of the probability is relatively small, unless the power cord appears a problem, memory CPU, check whether the memory and the motherboard plugged in, if the slot is broken, change a can, the CPU fan is not off, or the CPU fan screws loose, There is also a host of the CPU fan is not enough to turn the computer system will overheat, these situations will allow the computer automatically shutdown or the computer automatically repeated restart

Lack of power, power, such as the power cord off the plug is not good, will also lead to computer automatic shutdown.

If the memory strip and the motherboard in that slot contact with loose or off the phenomenon will cause the computer automatically shutdown

Virus Trojan, with anti-virus software after cleaning up the patch in time, anti-virus software has many kinds, I believe we all know, download their own after the antivirus clean-up can be.

Check is not abused some beta software, pirated software caused by, if it is, uninstall it.

Secondly:

1. Heat dissipation is not good. Due to the effect of weather temperature or the CPU fan is not enough to cause the system overheating, resulting in automatic shutdown of the computer, it is recommended to check the system temperature is normal.

2. Memory reason. When the memory and the motherboard slot contact loose can also cause the computer to shut down automatically, it is recommended to check the memory and the motherboard plugged in.

3. Power supply problem. Lack of power supply is also an important factor that causes computer automatic shutdown.

4. Software factors. As a result of viruses or trojans caused by computer shutdown is also everywhere, especially the recent popular shock wave, the virus will cause the system after the restart and shutdown. If you are using a Windows 2000 or Windows XP system, it is recommended that you use antivirus software after the shock wave on the timely patch, the general problem can be solved.