Why does my computer always suddenly lose power 10

Problems with the power supply.

You change the power supply.

This is the fault caused by the insufficient 5V power supply of the auxiliary power supply, on the surface, the power supply works normally, but the load power supply is very tight, and then there is a sudden power supply peak, the power supply will be actively protected, so you have to disconnect the power supply to start again.

1. Socket contact problem.

2. The power quality is too poor.

3. Aging and too much dust for a long time.

4. Poor internal contact of the chassis.

5. The internal temperature is too high, resulting in automatic shutdown, check the cooling fan.

Is it a case power outage or a monitor? It is recommended to check whether it is plugged in steadily. If it couldn't be a socket problem, our socket burned out after a few months, and we have two machines. Change to a better socket, and the general brand machine will not have this problem. And there is.

In addition to the opinions of the upstairs, another point is that if there is a problem with the CPU fan, it will also lead to this situation, and the memory module is not in good contact, it is best to unpack and sweep the dust first, and unplug the memory and wipe it with an eraser.

First: The CPU fan is not in good contact with the CPU, and the card holder that fixes the fan is rotten Second: power supply and power cord.

The power supply is the front end of the entire computer, and any device depends on it to function properly, so the power supply cannot be ambiguous. The power of the power supply is weakened and the power supply is damaged.

Poor contact of the power cord can also lead to it, so there is no need to explain it in detail here.

Third: motherboard, CPU, memory.

There are problems with the motherboard's power supply circuitry, some of which are due to the incompatibility of the motherboard and the CPU, or some kind of defect between the motherboard and the CPU during use.

Due to a problem with the memory, the wrong instructions are sent to the CPU, causing the computer to shut down instantly.

The monitor's lights and keyboard lights will still be on for a few minutes when the power is off, and you haven't moved your mouse and keyboard when watching TV? If yes, then your computer is set up with automatic standby, hibernation, sleep functions... Turn on the power options --- the control panel --- turn off functions such as hibernation sleep and automatically turn off the display, if it's not such a problem, it's your home voltage problem.

Check whether the power supply is insufficient and automatic protection is triggered under high load.

If it is insufficient, it is necessary to replace a power supply with a high rated power, especially a single 12V output.

A power outage without any precursor is generally a problem with the motherboard and the power supply, and it is possible that the power supply does not dissipate heat well, resulting in the action of the automatic protection circuit. Therefore, it will automatically shut down, and it may also be the automatic protection action of the power supply caused by voltage instability. There may also be a problem with the south bridge of the motherboard, or there may be a problem with the real-time crystal oscillator of the motherboard, anyway, it is more complicated, you have to explain the specific situation.

Generally, the power failure is related to the CPU overheating or the false standard of the power supply, the radiator can't hold down the CPU or the newly bought radiator doesn't die the base film, and the power supply is a miscellaneous power supply.

Check whether the power supply is stable If the power supply is okay, it is the case power supply It may be that the voltage demand of the CPU and graphics card exceeds the power supply load and the power supply is paralyzed, you can change the power supply and try it.

First: the CPU temperature is overheated.

The reason for this problem is simple, it is caused by poor CPU heat dissipation. The CPU fan does not rotate, the CPU fan speed is too slow, and the contact between the CPU and the fan is poor (less silicone). Replacing the CPU fan with thermally conductive silicone is the solution for this reason.

Second: the problem of the power supply and power cord is relatively simple to solve, just replace the corresponding object for testing.

Third: motherboard, CPU, memory: The reason is that the above two items are excluded and replaced by the exclusion method.

Check the fan to see if the CPU or graphics card is overheating.

Check the motherboard fan.

The side cover is opened, and the fan is turned on.

It could be one of several reasons:

1. Is there a problem with your power cable, is it that every time you move the chassis, power socket or computer desk, the power will be cut off? If so, please check the power connection.

2. The voltage in your area is unstable, this can be tested with a multimeter, if the mains power is far lower than 220V when the power is off, please try to use UPS.

3. The power supply of the computer is insufficient, please touch the power supply of the computer case with your hands when the power is off, whether it is very hot, if so, replace the power supply part of the case.

4. CPU overheating protection, whether it is playing games every time the power is off, it can be operated by animation, if so, please replace the CPU fan.

5. Static electricity interference, whether there is a feeling of electric shock when touching the metal part of the chassis shell with your hands, and showing electricity when measuring with a pen, if so, please ground the chassis.

6. There is a poor contact on the motherboard, which is the most difficult to deal with, and the general performance will sometimes show nothing when you turn it on, but sometimes it seems that there is no problem, sometimes there is nothing in the process of use, the key is to think about whether there has been a boot and nothing is displayed.

7. Memory problems, this is not easy to say, how to judge at once, you can only replace a good brand memory to try it is clear.

Think about whether you have installed any software recently, such as a game or antivirus. If you don't have the installation, the next time you still have the situation you described, it is recommended that you take the computer apart and use your hands on the CPU

Try it above to see if its temperature is too high, some are because the silicone between the CPU and the heat dissipation aluminum is dry, resulting in poor heat dissipation, and this situation will also occur.

There are several reasons: first, hardware conflicts; Second, the system resources are seriously insufficient; 3. Environment, such as air humidity, components are not firmly plugged in. You'll have to exclude them one by one.

First, check whether the temperature of the CPU is too high. Generally, if it is higher than 60, the motherboard will automatically power off for protection.

Second, check whether the gold finger of the memory is oxidized (just use an eraser to cut it) and whether it is plugged in tightly.

3. Check the power supply problem. You can give it a try with substitution.

There are several possibilities.

1. There is too much dust in the host, and the heat dissipation is not good.

2. If the fan is broken, the heat dissipation is also not good.

3. Poor contact of plugs and the like.

4. There is a Trojan horse in the computer.

5. There is a problem with the memory module