About computers for no reason from the beginning

Feel it, if it is a reboot when the CPU is running at high speed, it may be a problem with the power supply. Or the temperature inside the case is too high. Take a look at the inside of the case to see if there is any problem.

The speed of the CPU can be heard with your ears, and the fan will speed up. It is very likely that your machine is faulty with the software, so it is advisable to reinstall the system.

If the voltage is unstable and add a UPS or voltage regulator, if your computer is used for too long or the environment is very dirty, consider: the motherboard capacitor or power supply capacitor has a bulging capacitor and a few for a few for a 3 cents, if you have just changed the memory module, it is recommended to check whether it is compatible,

Suspicion: CPU fan is not lubricated enough, heat dissipation is insufficient, CPU temperature is too high.

Hardware issues.

Check the power supply, CPU fan, memory,

Generally, the automatic shutdown may be caused by the high temperature caused by too much dust in the CPU fan, if so, clean up the dust of the CPU fan and heat sink, add new heat dissipation silicone grease, if the heat dissipation fan is broken, change it. If it's not a problem, it may be caused by problems with motherboard parts or power supplies, voltage instability, hard disk failure, hardware overclocking, etc., and the new hardware is incompatible. In addition, the system failure and Trojan horse can also lead to shutdown and songkong, but the probability of this is very small, restore the system or reinstall it.

If it automatically shuts down or standby without operation, it may be a problem with the settings. Right-click on the desktop to select Properties Screen Saver Power Supply Select a scenario that suits you from the drop-down list in Power Usage Scenarios, and set Never in the list of Monitor Off, Hard Disk Off, System Standby, and so on below (or set a suitable time).

Open the control panel All Control Panel Items Power Options Select Turn Off the Display (Choose Never or Set Time) Select Change the Sleep Time of the Computer in the Left Test, and select Never or choose the appropriate time wheel in the drop-down list next to Make the Computer Sleep (Win7 system).

See if it's caused by the settings below.

Check the CPU temperature, I have repaired several such computers, all of them are CPU temperature is too high, you can apply some silicone first, and then change to a stronger CPU fan.

Take a look at the high temperature of the graphics card and CPU before changing the power supply.

1. There is a problem with the system itself Reinstall one.

2 Hardware problems, including processors, graphics cards, memory sticks, aging or poor heat dissipation caused by crashes Old computers are best to check whether all hardware is aging, and the last 1-2 years of computers to check whether the heat dissipation is normal. It may be shut down due to the high temperature caused by the continuous operation of the computer during the time you left and the heat dissipation is not good, and if it is an older computer, it may have to be replaced directly with a new one, and the computer cannot run normally due to the aging of the hardware.

3. Factors of Trojan virus This can be done by killing and killing viruses.