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One reason: there may be a problem with the heat dissipation of the CPU, press the Del key to enter the BIOS when turning on the computer to see if the temperature of the CPU is too high, if so, it means that there is a problem with the CPU fan and the heat dissipation is faulty.

Also: the motherboard is broken, the most likely is that the capacitors on the motherboard are broken and exploded, you see if the silver-white aluminum skin on the top of those capacitors is slightly protruding outward? If it is, it's broken, because a good capacitor is slightly concave.

Of course, there may be other reasons as well. I think these two reasons are more likely. Take a good look.

Try to put it in an air-conditioned room and look at it, check your CPU fan again to see if there is any dust, and then see if the silicone on the CPU has come off.

It should be that the electric fan is broken, just replace it with a new fan on the CPU.

Look at the heat dissipation issue and see if the CPU fan is turning.

The case can be opened, + electric fans.

It could be that there is something wrong with your memory you check it.

There should be nothing wrong with the hardware, check the CPU temperature. If it doesn't overheat, try to format and reinstall the system!

You'd better change the machine, I've had this happen before, and in the end the love plane was paralyzed!

Enter the BIOS to see the health status of the computer in PC Health, judging by it.

Format the hard disk in its entirety.

Probably poisoned.

The motherboard may be broken, and it is recommended to have it serviced.

It may be a little poisonous, let's kill and see if it's okay! No, go to reinstall the system [thank you for adopting].

Hello. It can detect whether the hard disk has bad sectors. Also see if the power of the power supply meets the required standard.

Have you tried to reinstall the system?

It is recommended that you upgrade the memory and improve the CPU configuration of the processor.

Also, you check the cable between the monitor and the main unit, and make sure it is secured, otherwise that situation may also occur.

Check the hard drive, there may be a hardware conflict, upgrade the driver to try.