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How to diagnose the power supply?

PUS is an energy source. If problems occur, major problems may occur. Signs of PSU failure:

The computer doesn’t start at all. 

As the central hub of computer energy, if the power is out, the computer will not start.

The PC restarts or shuts down randomly. 

The PC may crash if it is started or shut down during use.

Random blue screen crash (BSoD).

A broken power supply may cause a blue screen, but the blue screen may also be caused by computer hardware and software drivers, disk problems, memory failures, hardware failures, etc

Additional noise from the PC chassis.

If you hear strange noises from the back of the computer chassis where the power cord is located, it is possible that the PSU is broken.

Smoke or burning smell. 

If the power supply unit is very dead, it may emit burning smell or smoke. At this time, it needs to be replaced immediately and do not use it before replacement.

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