Why does my computer keep losing power? Desktop

Hello bosom friend! First of all, it is necessary to eliminate the problem of indoor voltage and socket quality, and it is also possible that the voltage is unstable, and the computer is mainly shut down or restarted for no reason, which is caused by insufficient power supply power or high hardware temperature

1.The power of the power supply is not enough to replace the power supply (the market price of the ordinary power supply is 80 yuan, and the better ones will be more expensive.) ）

Graphics. motherboard and other hardware) is too hot, causing self-protection. Causes an automatic restart or shutdown.

Solution: Coat a layer of silicone on the CPU, that is, heat dissipation glue, at a market price of 2 yuan. (xyz5819 Mind Spacetime).

At the same time, clean up the dust of the CPU fan, add lubricating oil to the fan shaft, and replace the fan

If none of the above can be done, it is recommended to send it to a professional repair. (xyz5819 Mind Spacetime).

Good luck! If you have any questions, please ask. Helpful, hope.

Don't move anything after turning on, if the power failure time is about the same, it means that the computer power supply is faulty, if the power failure time is not the same (I am talking about not vibrating the computer socket or something), that is, the socket line or something is not in good contact.

**360 Hardware Master Check whether the hardware or CPU temperature is too high, if so, check the fan speed, usually the speed is 1200-3000 is normal. If the speed is normal or the temperature is high, send it to a computer repair shop to help you get it off or replace it with a new fan.

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.

Generally, it should be on the same aspect, please pay attention to check it yourself, I wish you a long way!

A sudden power outage is not a big problem, just turn it back on.

1. Analysis of the causes of power failure:

1. Whether there is a problem with the power cable. The power will turn off every time you move the case, power cradle, or computer desk, so check the power connection.

2. The voltage in the location is unstable. You can test it with a multimeter, if the power is much lower than 220V when the power is off, please try to use UPS.

3. The power supply of the computer is insufficient. When the power is off, touch the power supply of the computer case with your hand to see if it is very hot, and if so, replace the power supply part of the case.

4. CPU overheating protection. Every time the power goes off, when the CPU usage is high such as playing games, please replace the CPU cooling fan.

5. Electrostatic interference. If you feel an electric shock when you touch the metal part of the chassis shell with your hands, and when you measure it with a pen, it shows that there is electricity, so please ground the chassis.

6. There is a contact place on the motherboard. This is the most difficult to deal with, the general performance will appear sometimes nothing can be displayed when the device is turned on, but sometimes it seems that there is no problem, and sometimes there is nothing suddenly in the process of use. The key to this problem is to think about whether there has been a situation where nothing is displayed as soon as the computer is turned on, and if so, you need to carefully check the motherboard to eliminate hidden dangers.

7. Memory problems. The memory is unstable, use software or a test card to test the memory, if there is a problem, please replace a good memory.

Second, the impact of power failure:

1. Analyze the impact of power outages on computer hardware.

The impact of power failure on the hard disk can range from data loss to bad sectors (frequent power outages). When the computer suddenly loses power, the power supply parts in the computer are cut off, and the rotating parts stop, such as various fans, which have no impact or little impact.

When the speed of the hard disk is running at 5400 rpm or 7200 rpm or higher, the power is suddenly cut off, and the head has no power to maintain, and cannot be suspended on the platter, and the platter collides violently, which will cause damage to the platter and damage the data recorded by the platter.

For hard disks, it should also be noted that today's hard disk shockproof and anti-power-off damage technology is still relatively advanced, when the hard disk is not reading data, the head will automatically return to a safe place, even if the power is suddenly cut off, there will be no damage to the hard disk.

2. Analyze the impact of power outages on computer software.

When the general work in operation is not saved and backed up in time, a sudden power failure will make the previous work undone.

How harmful is the sudden power failure in the use of the computer?

This is caused by poor memory contact, remove the memory module and wipe the gold finger with an eraser.

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.

Desktop computers are always automatically power-off reasons and how to deal with them:

1) The first and most important reason: the main engine power supply is faulty, due to the leakage of the filter capacitor, the poor performance of the triode, the poor performance of the modulation pulse width IC, the performance of the main drive transformer is reduced, etc., and the sudden power failure and no voltage output are caused, resulting in the main engine stopping operation. Solution:

Replace the power supply with a new one.

2) The second reason: because the CPU fan is stuck or damaged, the CPU cannot be cooled down, resulting in too high temperature, the motherboard starts the self-protection circuit, cuts off the power supply, so the host stops running. Solution:

Clean the dust on the CPU fan, and replace it with a new one if it is damaged.

3) The third reason: the heatsink falls off, or the bayonet breaks, which will also cause the CPU to fail to cool down, and the temperature is too high, the motherboard starts the self-protection circuit, and the computer cannot be turned on or restarted. Solution:

Reinstall the radiator or replace it with a new one.

4) The fourth reason: the voltage is unstable, that is, it is lower than 170V, higher than 240V, and if it does not reach the starting voltage and exceeds the specified voltage, it will make the computer run for a while and then automatically shut down or restart. Solution:

Jianyi buys a UPS, also called an uninterruptible power supply, so that it can not only stabilize the voltage, but also have 30 minutes of data storage time.

Generally, the automatic shutdown may be caused by the high temperature caused by too much dust in the CPU fan, if so, clean up the dust of the CPU fan and heat sink, and add new heat dissipation silicone grease. If it is not a problem, it may be caused by problems with motherboard parts or power supply, voltage instability, hard disk failure, etc., and the new hardware is not compatible. In addition, a Trojan horse can also cause a shutdown due to a system failure, but the probability of this is very small, restore the system or try to reinstall it.

If it automatically shuts down or standby without operation, it may be a problem with the settings. Right-click on the desktop to select Properties Screen Saver Power Supply Select a scenario that suits you from the drop-down list in Power Usage Scenarios, and set Never in the list of Monitor Off, Hard Disk Off, System Standby, and so on below (or set a suitable time).

Open the control panel Turn on hardware and sound Power Options Select Turn off the monitor (select Never or Set Time) Select Never or select the appropriate time from the drop-down list next to Make the computer go to sleep (Win7).

First, it may be that the power socket is not in good contact. Second, there may be rust on the computer's power connector. Thirdly, there is a problem of poor contact in the power box of the computer. Fourth, this phenomenon can also occur if the computer memory and graphics card are not in good contact.

See if your fan is running, or there is a virus, and there is also a possibility that there is a problem with your computer's power supply, and you need to repair it or change the power supply.

First, there is a short circuit in the computer power supply, and second, there is a leakage.

You can move the computer to another place and try to turn it on, because sometimes the leakage current is not large, it will also cause the leakage protector to trip.

The power goes out in your home as soon as the computer is turned on, which may be caused by the following reasons:

1. The impact of the sudden increase in instantaneous power supply current on the power grid when the computer is turned on. It is recommended to purchase a UPS or voltage regulator to improve the power supply environment.

2. The computer is short-circuited or there is leakage. Get a professional to inspect your computer for repairs.

It is possible that the power supply in the computer is short-circuited, and it is enough to repair the computer.

Unplug the computer monitor and turn it on, if the fault persists, move on to the next step;

Unplug the computer power cord and plug the fan into the original computer jack, if the fan is available, it means that the problem is on the computer side;

Replace the power supply on your computer.

Is your home fuse overloaded, the computer's wiring is short-circuited, the drag board, the power supply is short-circuited.

Trip? I guess there is a short circuit in the computer.