What are the symptoms of a broken desktop computer power supply?

What are the symptoms of a broken desktop computer power supply?

Symptoms of a broken desktop power supply

1. Can’t turn on the computer without power

2. Can light up when turned on, but Black screen, hard disk light is always on (mostly due to capacitor explosion)

3. It can boot into Windows, but it will restart as soon as I run a larger program. Caused by insufficient power supply. (Most of them are capacitor explosion prizes)

　4. The computer restarts for no reason while it is running.

Problems with the power supply can cause these problems, but these problems are not necessarily caused by the power supply.

　Symptoms of a broken desktop power supply

When you turn on the computer, the chassis power indicator light does not light up, and the hard disk indicator light does not light up.

If you touch the back of the power supply and there is no air coming out, it means the fan has stopped spinning and the power supply is down.

There is another situation that is easy to know. There is a popping sound when turning on the phone, and there are also electric sparks.

　Three symptoms of a broken desktop power supply

1. If it is determined that the power supply burnout will be limited to the power supply itself and will not damage any equipment on the computer motherboard, Please be assured of this. If the computer power supply has been burned out, there will be no response when the computer is turned on, and even the power light will not light up.

Because the power supply will have a protection device - a fuse. When the power supply fails and the current is excessive, the fuse (also called a fuse) will automatically disconnect the circuit and play a protective role.

　2. After the power fuse is blown, there will be no visible performance, only no response when turning on the computer. You need to remove the computer power supply to check.

But if the power supply of the computer is burned out, it will have a burnt smell and there will be no surface temperature. The fan will not rotate either. Based on these two phenomena, it can be said that the power supply is burned out.

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