The power goes off when the computer starts, and the power goes off when the computer starts, what h

1. Check whether the CPU is overheated, whether the CPU fan rack is stable, if it is broken or unstable, the CPU fan cannot be suppressed, the CPU fan heat dissipation capacity is insufficient, the CPU temperature is too high, and the automatic protection function of the motherboard will automatically shut down.

2. The capacitor of the motherboard is deformed, and the deformation may be caused by the unstable voltage of the host, so it can be replaced.

3. When the power supply of the host fails, or the voltage fluctuates greatly, the AC regulated power supply can be added.

4. No, it is recommended to kill the virus in safe mode, and it is not possible to disconnect the network and reinstall the system to eliminate system problems.

The motherboard or the power supply voltage is insufficient, it is recommended to find a professional to test it

What about safe mode? It doesn't matter if the safe mode is normal, if the safe mode is the same, restart the machine into the BIOS, open for a while, if there is no problem, it's not a big problem...

Could it be that your voltage is unstable?

Or do you open the case lid to see if the CPU fan is turning?

It may be because there is a problem with your computer's main computer, and you need to remove some parts of the main computer and reinstall it. Or the host is too dirty, and I want to wash it with something that can dry right away, I don't know yet, my dad asked my dad when he came back, if you want to know, add me, 568156984 beautiful angel, 85245694 purple tenderness, 857363768 variety girl.

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.

Tools: eraser, memory stick, screwdriver.

1. Use a screwdriver to remove the screws from the main unit.

2. Open the side cover of the case to see the approximate location of the memory module, which is usually near the CPU fan.

3. Gently push the buckle on one side of the memory module outward, and push the buckle on the other side away, and you can remove the memory module after both sides are opened.

4. Wipe the gold finger part with an eraser to remove the memory stick, the poor contact is mainly caused by dust and gold finger oxidation on it, do not touch it with your hands after wiping, wipe the eraser scraps on it with a cotton cloth, and then install it back on the host.

There are several situations in which the computer will automatically power off when it is turned on.

1. Turn on the power switch, press the power button to turn on, the fan turns, the machine has movement, the power will be cut 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.

Analyze the cause of the failure: This situation of automatic power off after booting is likely to be due to the 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 can 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 has been overclocked, or the CPU fan has a problem.

Third, there are short-circuit faults in accessories such as optical drives and hard drives.

2. The computer has often turned on and lost power recently, and I don't know what's going on, it used to be fine, but this situation often occurs when the temperature drops recently, what's going on.

Analysis of the cause of the failure: the cause of the failure is varied, such as IC chips, capacitors burned out, a circuit problem, 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.

Power-off failures may also be caused by the following reasons:

1. There is a problem with the power switch of the chassis, such as the failure of the return spring.

2. The CPU has been overclocked, or there is a problem with the CPU fan.

From my experience, it's probably the motherboard that is broken.

There are several ways to repair the computer normally, first, the sound listening method is to judge whether there is a problem with some part of the hardware according to the sound of the buzzer on the motherboard of the computer and the description of the motherboard. This part is then repaired.

Second, the replacement method This is a more commonly used method, which is to replace various parts in turn until the computer is easy to use. It's a bit of a clumsy approach, but when you're experienced enough, you'll be able to estimate what might be the faulty part and replace it to confirm your judgment.

Third, the cleaning method Many times the computer failure is caused by too much dust and the hardware is not tightly connected, so regularly clean up the dust, and tighten the hardware contact part, sometimes the problem is solved.

Detect the power supply.

If it's okay, take another look.

CPU fan.

There is no turn. 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.

Not plugged in? Generally, laptop batteries, after two or three years, the battery is very undurable. If you don't change your computer, replacing the battery is inevitable.

The computer I bought in 04 is still in use, and the landlord is very well protected, so I want to learn from the landlord. **Ah, or Cyber City sells batteries. It's not expensive to buy one, two hundred is about the same.

This is the situation when my athlon is broken, find someone else's CPU of the same model to try it, it is likely that the CPU is hanging.

Safe Mode:

Start --> run -->msconfig --> start the project, remove all the checks and leave only ctfmon, and then restart.

If it still freezes, check the memory and CPU temperature to see if there is a problem with the memory or if the CPU fan speed is not enough.

You can also unplug the coin cell battery on the motherboard, put it on again after 5 minutes, and then turn it on and it looks like you want to reinstall the system, if the system is installed, it means that it is a hardware problem, check the CPU temperature and motherboard, and unplug the memory and plug it in again.

This was the case last time as well, and at the end it was the cpu's fan that broke. You can try to see it.

It's the unstable power supply, if it's not the unstable voltage in your home, it's the problem of your power supply, or the power strip.

Power off after a few seconds of booting The motherboard is short-circuited or the power supply is over, so you can eliminate it First unplug the memory, graphics card, CPU, hard disk, and all the wires on the chassis, and then only connect the power supply Short circuit and turn off the key Start to see if you turn off yourself in a few seconds (it is best to take the motherboard out and take it to the outside of the case), if it is not turned off, then start to connect the cable of the chassis, and see if it will automatically turn off after connecting, so that once you can eliminate it, you will find the problem.

If there is a flameout, then it should be that the power supply is broken, or the motherboard is short-circuited somewhere, please ask a professional to come to repair it, thank you.

1. There is a problem with the computer system.

2. Disassemble the computer, probably because the graphics card or motherboard has a capacitor, and replace it with a capacitor.

3. There is a problem with the power switch of the chassis.

Did you change the power supply? Is the CPU piece hot? Try changing the power supply first.