The computer will automatically power off and will automatically turn on as soon as it is opened

There are 3 possible aspects that can be solved by yourself:

1.Graphics card memory issues.

Replug it in, clean the gold finger, and see if the fan is normal.

2.Cable problems (replugging, checking the VGA or DVI interface).

3.Display issues (Check if the electrical outlet is powered on.) If it's convenient, connect it to other computers to see if it's normal).

It's not possible to restore with one click. If you don't have a system disc ready, the optical drive can be used. Start the computer and press the DEL key, set it to a disc boot in the BIOS, insert the system disk and reboot, basically complete it automatically according to the steps.

No, if you check that the system is free of viruses. It can only be a matter of heat dissipation. After using it for a long time, you can open the case to carefully sweep the dust inside, and add a little high-grade oil to the fan. The main problem is to reduce the temperature inside the chassis.

1. The computer power supply has been used for more than 3 years, and it has been no problem.

2. When there is a failure, you are browsing the web, and the screen suddenly blurs, and then the restart will automatically power off.

3. After pressing the power supply, the green light is on, and the power supply will automatically turn off after the hard disk indicator flashes.

4. If you keep pressing the restart button, the power supply will not be automatically powered off.

The above is the performance of the failure, ask for a master answer, it is very urgent, and the high score is added to the successful solution!

What is certain is that the hardware is a problem, and it is rare for a virus to be so powerful, try it with a different power supply. No, try it on a different motherboard.

There are a lot of cases where the system goes down, and you don't know where the system goes down, and you can't be sure.

The computer will automatically power off after a while after starting, and the reasons are as follows:

1. The power supply is unstable, the voltage is not enough or it is broken.

2. Poor contact of the motherboard power supply.

3. The CPU conducts heat poorly, overheats, the CPU fan does not rotate or the speed is slow or even broken.

Solution: 1. Replace the power supply with a new one.

2. Make sure that the lines of the motherboard are in good contact.

3. Replace the CPU fan and coat the CPU with thermally conductive silicone, don't coat it too thickly.

The computer is automatically powered off when it is turned on

The specific situation is like this: turn on the power switch, press the power button to turn on, the fan turns, the machine has movement, and the power is off after a while, the fan does not move, the indicator light is not on, and it is useless to press the power button again. Turn on the power supply, and after a while, restart the power and repeat the above situation.

And after I power the hard drive, I can turn on the machine until it detects that the hard disk does not have this step. Sort out the optical drive power supply again, and after a period of nonsense, it can be turned on and work normally for a day (no longer without turning off). Excuse me, I don't want to do this every day, how can I solve this problem?

Solution: This situation of automatic power off after power on is likely to be due to a failure of the power supply or motherboard. The causes of the failure are varied, such as IC chips, capacitors burned out, problems with a certain circuit, etc., generally speaking, such a fault is not possible to repair the individual, it is recommended to send it for repair or replace the relevant accessories, it is recommended to try to replace the power supply first.

In addition, the power supply quality problems of the mains (such as low voltage, abnormal fluctuations, etc.) may also cause this fault phenomenon of power failure when the power is turned on.

The power-off fault may also be caused by the following reasons: first, there is a problem with the power switch of the case, such as the failure of the return spring, and second, the CPU is overclocked, or the CPU is a problem with the fan. Third, there are short-circuit faults in accessories such as optical drives and hard drives.

The computer is automatically powered off when it is turned on, and fault two:

The temperature drop may cause some problems that we can't figure out, so it is recommended that you open the computer case, unplug and install everything that can be plugged in and out of it, and see if you can solve the problem later.

Note: Under normal circumstances, the solution of automatic power off when the computer is turned on is that the power supply or motherboard is faulty. The causes of the failure are varied, such as IC chips, capacitors burned out, problems with a certain circuit, etc., generally speaking, such a fault is not possible to repair the individual, it is recommended to send it for repair or replace the relevant accessories, it is recommended to try to replace the power supply first.

In addition, the power supply quality problems of the mains (such as low voltage, abnormal fluctuations, etc.) may also cause this fault phenomenon of power failure when the power is turned on.

Hello friends:

This is most likely four reasons:

1) The first reason: the power supply of the host is faulty, such as the filter capacitor of the power supply is bulging and leaking, resulting in insufficient power supply, it will form an automatic shutdown or restart of the computer, and the treatment method is to replace the power supply.

2) The second reason:

The graphics card's video memory integrated block is soldered, resulting in poor contact with the motherboard PCB board after powering on, it will automatically shut down or restart.

3) The third reason: the radiator falls off, and the motherboard detects that there is no cooling device, and the computer automatically shuts down due to the activation protection. Jianyi can open the main chassis and reinstall the radiator.

4) The fourth reason: the boot circuit of the motherboard is faulty, there is a problem with the power supply of the special CPU, the CPU cannot start, the motherboard starts the self-protection circuit, cuts off the power supply, and automatically shuts down. Jianyi repairs the boot circuit, especially the CPU power supply.

Old-fashioned CPUs may be CPU pins broken)

Hope it helps you and I wish you happiness

The computer will automatically power off after a while, and there are reasons for this

1. The power supply is unstable, the voltage is not enough or it is broken.

2. Poor contact of the motherboard power supply.

3. The CPU has poor thermal conductivity, overheating, the CPU fan does not rotate or the speed is slow or even broken, and the short circuit will be automatically detected after the power is turned on, and then the protection will be triggered, so the power will be cut off, so at this time you should not turn on the computer again, and send the computer to the repair shop for repair.

Ask how to repair it and how much it costs.

If neither of the above fails, you can disassemble all the hardware once and put it back on. I've tried it many times and it works best.

Follow-up question: How to check the power supply?

Answer: To test the power supply, it is to see if the plug is sent, including the external plug and the connection between the computer and the motherboard, and if there are conditions (if there are two computers), change the power cord or change the host power supply. If there is too much dust in the main unit, it is best to use a hair dryer to blow the dust.

Follow-up: I changed the host to my classmate's and tried, or that. Now the problem seems to be that there is no problem after turning on the machine, and the power will be cut off when the mouse clicks something.

Answer: If you are familiar with it, take it apart and take a look. When I just said about changing the power supply of the main computer, I meant that I tried to change the power supply of another main computer to your computer, not just change the power supply of an electrical plug board.

Check whether the CPU fan is spinning first, and the CPU will automatically shut down if it overheats. If it is normal, remove the power cord, memory, and graphics card connected to the host, clean the dust, and then reinstall it. The most outrageous thing I've ever seen is that at the prongs of the CPU, there is a cotton thread of the clothes there, which causes frequent automatic shutdowns.

The power supply voltage is unstable.

That's a possibility.

There is also the issue of the motherboard.

It's best to check out the computer store!!

This is generally a hardware problem, especially the power supply is not good!