The computer automatically turns on, and if no one pays attention to it, it will automatically turn

There are two main reasons for the failure of computer self-start: one is that the B iOS is not properly set, when the timer boot function is set to "e nabled", the machine will automatically turn on at a certain time on a certain date. In addition, some motherboards have an auto-turn on function setting in the B iOS settings, if this function is selected, the machine will automatically turn on when the power is on.

It should be said that these problems are not real failures, but the fact that the user does not understand these characteristics of the machine.

If it is found that it is not the above reasons, it is undoubtedly a hardware failure, or the power supply itself has poor anti-interference ability, or the voltage is too low, or it may also be the poor quality of the PS-ON signal from the motherboard, which can be solved by replacing the power supply.

If you are connected to the network, the internal LAN can be triggered by someone from the network card to boot the computer, and if it invades your computer, of course, you can shut down your computer.

Another possibility is that there is a problem with the components that control the power supply of the motherboard. Overhaul is recommended.

The automatic shutdown of the computer is mainly caused by the following reasons:1. Poor heat dissipation.

Due to the influence of weather temperature or the insufficient number of revolutions of the CPU fan, the system overheats, which will lead to the automatic shutdown of the computer, it is recommended to check whether the system temperature is normal. 2。Memory reasons.

When the contact between the memory and the motherboard socket is loose, it may also cause the computer to shut down automatically, it is recommended to check whether the memory is plugged into the motherboard. 3。Power issues.

The lack of power supply is also an important factor that causes the computer to shut down automatically. 4。Software factors.

It is also possible for a computer to shut down due to a virus or Trojan horse. In addition, I think most of the reasons may be related to the power supply and hardware, you can reseat the hardware and power socket to clean up the dust. It's too complicated for you to probably understand, so let's just put it simply, wow, the first step:

Open the case to remove the dust first, and see if the CPU fan is running normally and whether the speed is enough (test speed method: when the cup fan is running, gently touch the fan blade with your hand to see if it hits, if it is a beater, it means that you can reach the speed with your hand, it is normal, stop without touching it, and replace the cup fan if you don't have energy), the heat sink under the fan blade must be cleaned The second step: check whether there is a capacitor on the motherboard, whether it is normal, and whether there is an explosion capacity Step 3:

There is no problem after reading the case, just redo the system to see, it is best to use a different system disk to do, and format the whole disk Step 4: If it still doesn't work, try to change the power supply, Step 5: The above have tried it and it doesn't work, just check whether the voltage input in your home is normal, if there is a multimeter, as soon as this problem occurs, immediately measure the voltage to see if it is normal.

If the voltage is abnormal, buy a voltage regulator to report.

Reasons for automatic computer shutdown:

1.Poor heat dissipation, power failure, and motherboard failure may cause the computer to shut down automatically or restart repeatedly.

2.When the core components of the system are damaged, the running computer may automatically shut down.

Solution: First, check whether the antivirus software has killed the virus, you can determine, whether it is caused by the computer system poisoning or malware, if there is a virus, it is recommended to use a variety of antivirus software combination to kill the virus, or not, reinstall or restore the system, you can solve it.

3. If the computer has an independent graphics card and the power supply is not enough, then you can only change to a higher power power supply.

Fourth, shut down, touch the motherboard south bridge, north bridge chip, graphics card chip, if it is very hot, it is likely to be broken, to be repaired.

This is not a problem with your system, it has nothing to do with poisoning. The most important thing is the problem of power supply and voltage. First, the voltage of your home is unstable, and the voltage often suddenly becomes low for some reason, which can be someone nearby with high-power electrical appliances, etc., and second, the problem of your power supply itself, the two reasons together cause the above desperate restart.

If the power supply is low, the voltage is stable, and it can be turned on normally, if the voltage is unstable, or you are using high-power appliances at that time, the voltage is low, and your power supply can not keep up with the above problems. Workaround: **:

Solve the problem of voltage instability and change to a better power supply. Symptomatic: Change to a better power supply, such as Huntkey's wide boy, or other brands, such as the Great Wall, Jinhetian, etc.

But it's best to find the one marked with the word wide, because your voltage may be caused by high and low fluctuations, if the voltage is out of low voltage for a long time, the power supply should buy a larger wattage, with the word wide is the best, that is, the wide king, the wide boy and the like.

Next, Master Lu, see if the temperature of the machine is too high?

First turn on the bottom left corner of the computer, click on the control panel, enter the control page state, and then find the power options button, if you don't find the button. Then click on the small icon under the category of the control page to view the page. This will allow you to find the Select Power option, go to the ** page, and click Change Computer Sleep Time on the left.

After entering the settings page, you can set it according to your own requirements, and after the setting is completed, you just need to click Save to modify.

Hello, this is a software problem, just reinstall the system,

That shouldn't be a shutdown, it's a screensaver.

Improper connection.

There is a problem with the computer.

Improper operation.

The automatic shutdown of the computer is generally caused by the protection of the computer itself, I don't know how long it can last after the shutdown to restart, if it doesn't take a few minutes to shut down after the shutdown, it is usually caused by poor heat dissipation, the easiest way is to change a CPU fan to try, or clean up the dust or add some lubricating oil to the fan.

Of course, it is also possible that the computer may be shut down due to a virus that causes a computer program to fail.

First, the boot time is too long, and the computer is a self-protection hardware;

Second, the boot time is too long, and the CPU temperature is too high. Straight blue screen or freeze.

Third. The ambient temperature is too high and the ventilation is not smooth. It will also cause the temperature of the machine to be too high.

Fourth, the graphics card is not working. CPU short circuit, ask for adoption.

Clean up your computer dust and see if there's a problem with the processor heatsink Good luck.

The computer shuts down automatically, why? How to solve it?

If it is rebooted in the system state, first of all, it is necessary to determine whether the system has installed too many plug-ins, if you have a strong ability to do it yourself, you can try to use 360 such software to repair the system simply, if the problem is still not solved after repair, it is recommended to save useful files, and then reinstall the operating system, which is just the most basic repair method.

In addition to the system reasons, we also need to consider the reasons of the computer hardware itself.

1.Memory issues.

There are many reasons why hardware causes a computer to restart, such as the quality of the memory itself, but most of these cases will be found soon after the computer is assembled. In addition, the new memory, which is not compatible with the original memory, will also cause the computer to restart; Finally, dust causes poor memory contact, we can try to clean the gold finger of the memory, and also use a small brush to clean the dust of the memory slot.

2.Graphics card and other hardware issues.

In addition to memory, graphics cards and hard disks may cause computer restarts, the common problem of graphics cards is poor contact, the treatment method is the same as memory cleaning, we clean up the gold finger part of the graphics card, as well as the dust inside the graphics card slot; In addition, if you are using a high-end graphics card, check whether the auxiliary power supply cable is plugged in tightly, and whether the power supply is enough to support the high-energy operation of the graphics card.

If you use an HDD, you can check whether the HDD has bad sectors; In addition, whether the power plug of the hard disk is plugged in tightly, if it is loose, it needs to be dealt with in time.

3.Power issues.

If there is still a restart after the above operations, then we need to check whether there is a capacitor bulging or even leakage inside the power supply, if there is a similar situation, on the one hand, you can seek help from technicians to help us replace the damaged capacitor, so that the operation cost is relatively low; If you have enough money, you can directly replace it with a new power supply.

4.Replacing the radiator is causing reboot issues.

In addition to the above, there is actually another reason that may cause the computer to restart. If you have just replaced the CPU cooler, and the fixing screws of the cooler are not balanced and tightened, it may also cause the computer to restart! This situation is usually because the CPU will generate high heat when it is working, but when we install the heatsink, we do not install it to balance, resulting in one corner of the CPU not dissipating, at this time the processor overheating will power off protection, so restart!

Automatic restart, if reboot occurs frequently, it is recommended to reinstall the system first to try to eliminate software problems. Or reboot may be a hardware problem, such as a memory, hard disk, motherboard failure, need to be repaired.

Your computer shuts down suddenly, and then turns on automatically, I speculate that it is not an automatic shutdown, but after the computer reads that it is an abnormal shutdown, the computer starts normally, if there is no problem with continuing to use, there should be no major problems, sometimes the system just needs to be updated.

The computer is stuck and malfunctioning, restart it and refresh it.