The failure of the computer power button is a common fault when powering on. What if you press the button but nothing happens? Don't panic, you can follow the troubleshooting tips provided in this blog post by MiniTool to solve your problem. Without further ado, let's check them out one by one.

Computer power button fails

The power button on the computer is an important component. Pressing it can start your machine, load the Windows operating system to the desktop so you can handle some things. However, sometimes you will find that pressing the button has no response.

There are many reasons for the computer's power button failure, such as the power cord, dirty power button or power problem, power failure, etc.

If you are troubled by this annoying problem, what can you do to get rid of this trouble? Please follow the troubleshooting tips below.

How to fix computer power button failure

Check your power unit

The power supply unit (PSU) is an important component of the computer and is responsible for converting the main AC power into low-voltage, regulated DC power. To learn more about PSUs, refer to MiniTool Library – The Basics of Power Units You Should Know.

If you encounter a problem with the computer's power button failure, you can test it to see if the PSU is malfunctioning. Here is a related article for your reference - how to determine whether the PSU is faulty? How to test PSU? Get the answer now. Also, you should check the cables and connections from the PSU to make sure they are connected correctly.

Clean the power button

If debris enters the power button, it may stop working. What you need to do is clean this button. This requires special tools and expertise, and if you don't know how to do it, please seek help from an expert.

1. Remove the side panel, front panel and top cover of the computer.
2. Spray contact cleaner on the power button.

Start the computer manually without using the power button

When you encounter a computer power button failure, you can try another way to start the computer - through the motherboard.

1. Find the power switch pin on the motherboard.
2. When connecting the computer to a power supply, connect these pins together using the conductive tool.
3. The motherboard can receive signals to start the computer and can start it.
4. You can connect these pins together again to turn off the computer.

Replace the power button

When you encounter a problem with the computer's power button failing, you can replace the power button to see if it can help you.

1. Disconnect the computer power button connector from the motherboard.
2. Use a screwdriver to remove the plastic panel from the chassis.
3. Remove the power switch from the front panel power button. If it is difficult to remove the switch, you need to break the seal with force.
4. Buy a new power button and install it on your computer.

in conclusion

All of these operations to fix the failure of the computer's power button is not easy. If you do not have computer skills, we recommend that you send your computer to the repair shop, please ask for help from experts. Otherwise, the wrong operation may make the situation worse.

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