My home computer occasionally shuts down by itself, what the hell is going on, please help me

After automatic shutdown If it can be turned on normally, then this situation belongs to the self-protection function of the system.

Because there is an automatic power-off protection function in the motherboard BIOS settings, that is, when the computer is overloaded or encounters other situations that damage the CPU or system, this information will be fed back to the motherboard chip in time and react, because the BIOS is set up with this protection function, so in order to protect the CPU from damage, the system will automatically power off.

Your computer should be cleaned of dust or the fan is not running well, which usually occurs when the CPU is overheated or the CPU is overloaded due to the computer running for a long time. Excessive dust and improper fan operation will lead to poor heat dissipation and overheating of the CPU, which will trigger the automatic power-off protection function. If that's the case, just fix the heat dissipation problem!

If the computer cannot be turned on normally after power failure, it is estimated that there is a problem with the hardware or system files.

First, use the replacement method to troubleshoot the hardware problem (mainly check the motherboard and power supply).

After the hardware is eliminated, it is a system problem, and it can only be solved by reinstalling the system.

Frequent automatic power outages can cause harm to computer hardware, and the consequence is to shorten the life of the hardware.

If you rule out the voltage problem, please use an antivirus software to scan the entire disk, it may be due to a virus.

If you're not sure, leave it to a computer repair company. When removing the fan, there may be a certain amount of stickiness between the fan and the CPU due to the possibility of heat dissipation silicone between the fan and the CPU during installation, so be careful when removing it. There is also a soft brush to clean the dust in the fan, which can be blown by a "leather tiger".

Either use a cloth dipped in water, but squeeze it very dry, then wipe the fan and let it air dry.

If you reinstall the system, there will be no problems, or the voltage in your home is unstable.

Under what circumstances did the sudden shutdown occur, and what did something appear after the shutdown?

Now the weather is hot, especially during the day, it may be that the CPU or graphics card will automatically shut down when the temperature is high, you can open the lid of the case and try it. Clean the dust inside the case.

In addition, the system problem may also be abruptly shut down, clean up junk files, optimize the system, and scan the whole disk for viruses to try.

The automatic shutdown of the computer is mainly caused by the following reasons:

1.Poor heat dissipation. Due to the influence of weather temperature or the insufficient number of revolutions of the CPU fan, the system overheats, which will lead to the automatic shutdown of the computer, it is recommended to check whether the system temperature is normal.

2.Memory reasons. When the contact between the memory and the motherboard socket is loose, it may also cause the computer to shut down automatically, it is recommended to check whether the memory is plugged into the motherboard.

3.Power issues. The lack of power supply is also an important factor in causing the computer to automatically shut down, but from this configuration, the possibility of this problem is very small.

4.Software factors. Computer shutdowns caused by viruses or Trojans also abound, especially the recently popular Trojan horses such as robot dogs, which will cause the system to reboot and shut down after being hit by the virus. If you are using Windows

2000 or Windows

XP system, it is recommended that you use antivirus software to patch the blaster in time, and the general problem can be solved.

Optimization Master or z**.

Measure the temperature first, when measuring the temperature, you must open the game or the program you usually run, in order to measure the actual temperature of the destruction zone, see which temperature has soared, open the case, clean up the CPU, graphics card fan, memory module and the dust of the power supply uplink, and then replace the CPU fan with a higher power.

Gears.

It's a hot summer, and you're getting more and more faults. Most of it is because of the heat dissipation of your machine. There are usually three aspects to examine.

1。Judging from your description, there may be a problem with your power supply, see if the power supply fan still doesn't spin! If possible, take it apart to see if there is a condenser drum.

2.Clean the dust inside the chassis, including your power supply.

3.Check that the fan of the CPU graphics card is working well.

Even if it's not the above problem, it's good for your computer.

It is estimated that the virus can be cleaned up with a 360 first aid kit or Kingsoft Antivirus.