When a desktop computer has a problem, for example, can't be started, hang, or always restarting itself frequently, it can be caused by many reasons, one of which could be due to power supply that has a problem / damaged, and must be replaced with new one.
To make sure an ATX power supply is damaged or not (ATX is Advanced Technology eXtended,is a common type of power supply used on any desktop computer at the moment), we can check this by measuring the output voltage at each output terminal using a volt meter / AVO meter (Ampere Volt Ohm meter).
Measuring an ATX power supply using an AVO meter will indeed obtain accurate results, but require a longer time because we have to measure each output terminal, (+3.3 V, +5 V, +12 V,-5V,-12V ), and we have to understand about the electric voltage and current, and understand how to use the AVO meter. Of course not everyone can do it.
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