The computer automatically powers off! The computer will automatically turn on when the power is off

Your question is not very clear yet. Does the computer automatically start up after the power is off, and if so, then the problem should be that the computer restarts frequently. Reboot the computer itself:

software factors, systems, viruses; Hardware factors power supply, heat dissipation, memory, hard disk, CPU. Voltage instability due to external factors.

If the computer won't restart after the power is off, the power supply problem is relatively big.

From your description, first make sure that the lower voltage is stable, how long have you tried it in the maintenance office?

Then give your power supply to another computer, or try it with a power supply from somewhere else that works fine.

If a good power supply is tested on your machine, it will restart, and you have changed the fan, and then confirm whether there is a problem with the memory, you can ** a memory detection software. Hard disks and CPUs can also be detected by relevant software. There are still problems to consider the system problem.

If you have a ghost backup, use ghost to restore the system, disconnect other computers in the local area network, and then perform antivirus. Do not run files other than the system disk (C drive) or double-click other drive letters to avoid virus re-infection.

If there is no problem with the computer in the same house, it may mean that your power supply is not working properly in the case of low voltage.

If there is no problem in the repair office, it may mean that your power supply can work normally under the condition of stable voltage.

You don't need to kill the virus, just change the power supply between you and your roommates to see if it's a power supply problem.

The entire cooling system of the CPU was replaced, and the thermal grease was reapplied.

It's no problem to go to the maintenance department, because when he is repairing and finding the faulty part, he opens the cover to find it. Heat dissipation is of course different from a closed case.

If you are confident that the fan you have replaced is okay (you can refer to the CPU temperature test to confirm. Then you'll have the biggest problem with the power supply in your case.

That's basically the two things.

If the problem is solved, please give a minute, thank you

Two possibilities, one, your computer with a long time, processor, aging, in the working time for a long time, when the amount of operation is easy to power off, two when you play the computer, the program is not open more, if you add the possibility of one, then the possibility of power failure is greatly increased, it is recommended that you run the software less, and then observe the power failure time, if there are still many power outages, then you have to change, the main components!

It's still a heat dissipation problem, so let's look for it.

Try to change the power supply, Kanawada's is better!

Check out your motherboard settings.

1.First, go to the main BIOS settings screen and select [PowerManagement.]

setup], and then select [pwr.]

lostresume

state], which has three options.

Select [keep.]

off] item, which means that the computer will not start automatically when the call comes again after a power failure.

Select [turn.]

on] item, which means that when a call comes again after a power failure, the computer will automatically start.

Selected [last

state], which means that when a call comes back after a power outage, the computer will return to the state of the computer before the power failure. If the computer is turned on before the power is off, it will automatically turn on after the call comes. If the computer is in a shutdown state before the power is off, the computer will not automatically turn on after the call.

3. Some BIOS [power

management

setup] does not have the [pwr] mentioned above

lostresume

state], which can be found in [pwron

After pwr-fail] [integratedperipherals] option, set to off.

The options will vary depending on the motherboard and BIOS model, but I think it should be about the same, and it is generally in [power

management

setup] to find the corresponding setting options!

It may be that there is a problem with the circuit, or the motherboard is poorly connected, if it is a brand machine, go to the store where you bought this computer to overhaul it, and if it is an assembly machine, go to a nearby computer city or other repair shop to overhaul it.