The computer suddenly shuts down automatically and does not start

1.Viruses in your computer.

2.It is enabled to automatically shut down and restart when the computer encounters a serious error.

3.A critical memory error is causing the system to crash (software issue).

4.Malicious program or **.

Phenomenon: During the normal operation of the computer, the system suddenly and automatically shuts down or restarts the system.

Phenomenon analysis: Today's motherboards have a temperature monitoring function for the CPU, once the CPU temperature is too high, exceeding the temperature set in the motherboard BIOS, the motherboard will automatically cut off the power supply to protect the relevant hardware. On the other hand, power management and virus software in the system can also cause this phenomenon to occur.

Auto Shutdown Troubleshooting Methods:

1. There may be a problem with the BIOS settings, enter the BIOS to restore the default settings or take out the battery of the motherboard, reverse the buckle discharge, and wait for 5 minutes to reverse install it. Purpose: To restore the default values of the BIOS settings and eliminate the automatic reboot or shutdown of the BIOS cooling presets.

2. If the computer shuts down automatically when using a certain application software, the automatic shutdown failure may be caused by this program software, and the program software can be uninstalled.

3. Then check the power supply, the power supply quality is poor, aging or the power is too small, which can not meet the power supply needs of the computer accessories, and the high-power and high-quality power supply can be replaced.

4. Then use the elimination method to check the memory, graphics card, CPU, CPU fan, motherboard, etc.

5. Check the memory, the memory quality is not up to standard, poor heat dissipation, overclocking, mixing and inserting of different brands of memory and the CAS value setting is too low, etc., which can cause the computer to shut down automatically, and the memory parameters can be adjusted accordingly in the BIOS.

6. Check the motherboard, the motherboard aging, capacitor failure or pulp, the motherboard power pins, the motherboard and the chassis backplane short circuit can cause automatic shutdown, you can take the motherboard out of the chassis to check or test, then check whether the CPU fan rotation and the CPU temperature is normal, and then check whether the bottom of the CPU fan heatsink is dry, if it is dry, clean the silicone on the CPU fan, and then recoat the good silicone. If the fan is not normal, replace the CPU fan.

7. Cleaning method: It is a method to eliminate faults by cleaning the dust of the parts in the computer host. Dust is one of the factors that can also cause computer automatic shutdown failures, dust can cause parts aging, pin oxidation, poor contact and short circuit and other failures.

For these faults caused by dust, it is generally more effective to use the cleaning method.

8. The power supply system is unstable, which can also cause the occurrence of automatic shutdown faults, and a UPS backup power supply with voltage stabilization function can be considered.

This phenomenon is likely to be caused by the power supply or motherboard filter capacitor bursting or failing, try a different host power supply.

My previous computer was the same, it should be a problem with the power supply, and I haven't had a similar problem since I changed the power supply.

Motherboard static electricity...

In fact, the high-voltage protection of the components on the motherboard is similar to the fuse function, but this fault cannot be repaired.

Directly speaking, it is a sudden power failure, and there is no response when you click on the power button, and the power cord is unplugged and discharged for 10 minutes. . . It has nothing to do with the power supply at all, it is that you do not pay attention to cleaning the dust in the chassis and cause static electricity to damage the components, and the discharge can be solved but will not be completely eliminated.

It could be a problem with the wires.

There are a variety of possibilities for automatic shutdown, the more common ones are:

1. Because the computer has been used for too long and the heat dissipation function of the main box is not good, the temperature of the inverted CPU and graphics card is too high, and it suddenly shuts down and restarts after playing for a long time.

2. Because of the computer virus, it is best to kill the virus first....

3. It is the least common that there is a problem with the power supply of the host, or that there is a problem with the plugging accompaniment.

Do you look at the electric fan of the main chassis and still turn?

Start Control Panel Power Options Power Usage Scheme: Take a look at this: [Always on] How does it react, [Turn off the monitor] How does it react, [Turn off the hard disk] How does it react, [System Standby] how does it react.

If it doesn't work, just restore it with one click:

A few seconds after booting in, after the motherboard brand came out, I saw a series of English prompts, and immediately pressed "F11" You use "one-click restore", if not, you have to reinstall the system.

It is recommended that you install and use Master Lu to test the body temperature of each component of the host, and it can also be optimized.

If the CPU temperature is too high, it will automatically shut down, you first check whether your fan is broken, and then the power supply, to the motherboard!!