Recently, my computer is always turned on and doesn't respond (it should be turned off, and it was turned off normally yesterday), so I need to put the power cord (the end near the power supply of the chassis) 1. The connector has poor contact due to machine aging or dust. You can clean up the mainframe and lose weight.

2. There is something wrong with the quality of power supply.

Since pressing the power button doesn't respond, you can try pressing it several times. After all, the front panel power supply and the motherboard are connected by a power cord.

I hope it helps you.