What s the reason that the computer power often doesn t turn on?

It may be caused by insufficient power supply, and it is enough to replace it with a more powerful power supply.

The specific insights are as follows:

First of all, check all the cables that need to be used, including the power plugs, to see if there is a problem to ensure that all devices are connected correctly and tightly together, and that the power supply is in the best condition.

Next, check if the power is turned on. Listen to the sound of the power supply fan to see if the hard drive is working properly. If you don't hear anything, the power supply may be running low and you may need to replace the power supply unit.

To determine this, consider using a power supply test device, such as PC Power and Cooling, to test the power output.

If the power supply** is normal, but the screen is still pitch black, try connecting a different monitor to your computer to make sure it's not the display's problem. If the monitor is working normally, change a ** connection cable to see, if the hard disk can run normally at this time, the monitor still has no image, it is very likely that the graphics card is faulty. You want to replace it with a new motherboard, or use the motherboard's integrated graphics card.

If the motherboard has this feature. When the case is opened, check that all the fans are working properly after the power is turned on, and the computer may also be experiencing overheating.

If your monitor is working fine, but the hard drive doesn't boot up and the display doesn't have any images, consider setting up the CMOS again. Turn off the computer, unplug the power supply, and remove the battery from the motherboard by wearing anti-static protective gloves, etc. Then wait for about five minutes and reset the CMOS settings.

Finally, restart the computer after the setup is successful and see if the problem is solved.

1. Replace the socket for socket problems.

2. If there is a problem inside the computer case, go to the computer for maintenance and electrical inspection.

Restart the computer and press F8 to enter safe mode, delete the graphics card driver in the control panel of safe mode: then restart the system normally, reinstall the graphics card driver or change to another version of the graphics card driver.

It's likely that your computer's power supply is malfunctioning or that the power cord is not in good contact.

First of all, check whether the power cord is in good contact with the computer, if the power cord is loose, you can replug it or replace it with a new one.

If you rule out the contact problem with the power cord, it is likely that there is a problem with your computer's power supply and you need to replace it with a new one.

PS: Many friends tend to ignore the importance of computer power supply when pursuing computer configuration, and I hope that everyone will try to choose a power supply guaranteed by a big brand when purchasing a computer power supply, so as to make the computer run more stable.

The computer power can't start and can't turn on the situation that many friends should have encountered, so what's the problem of? How do we solve it? Some users don't know much about it, so today I'm going to sort out and share with you how to deal with the power that doesn't turn on the host.

Here's how to deal with it:

1. Unplug the power plug, then press the power switch of the computer, release the remaining power in the host, then turn on the power and restart the machine (if it is invalid, turn to the next step, the same below);

2. Open the chassis and wash and dry your hands with water. Unplug the memory module, and turn it on and off, plug in the memory module again, and turn it on;

3. Unplug the graphics card, then replug it in and connect the graphics card and monitor, and turn it on;

4. Unplug the hard disk data cable and power cord for modification, power on and off, plug in the data cable and power cord again, and turn on the computer;

5. Find the motherboard battery and remove it carefully. Mott uses great force to prevent the tool from scratching other parts, short-circuit the two contacts of the battery on the motherboard (not the positive and negative poles of the battery), power on and turn on, and then put the battery back in place and turn it on;

6. Disconnect the host from other (display) components, turn on the host to observe the hard disk light, etc., to see if the host is running;

7. Find experienced people to deal with it;

The power reboot of the computer can be caused by a variety of reasons, such as power failure**, CPU overheating, memory problems, or system crashes.

Specifically, on the one hand, a power supply failure is an important cause of a computer that cannot be turned on. If the power supply fails when starting, the computer will not be able to rotate normally, and the boot cycle will be repeated. When this lead is hidden, you need to check whether the power switch button, power plug and power cord are connected properly.

On the other hand, CPU overheating is another common cause. If the CPU overheats, the computer may freeze or automatically restart, and it will not turn on. This can be solved by cleaning the radiator or using a better cooling device.

In addition, memory issues can also cause your computer to not turn on properly. Memory issues usually manifest themselves in the form of a computer running slowly or even not booting properly. In this case, you may want to consider replacing or reinserting memory modules and performing memory tests.

Finally, a system crash can also be the reason why your computer won't turn on properly. If you can get into the Windows system, you can try to repair the operating system in the crash recovery mode. If you can't get into Windows, you can try a system recovery.

If none of these work, you may need to do a system reinstallation.

In short, there are many reasons why the computer power reboot cannot turn on normally, and you need to rule it out according to the actual situation. In general, hardware issues are ruled out first, and then operating system issues are considered. <>