A computer power supply unit (PSU) is a critical component that provides electrical power to the various components of a computer. It converts alternating current (AC) from the electrical outlet to direct current (DC) that can be used by the computer’s components. A faulty PSU can cause a computer to malfunction or even damage other components, so it is important to be able to check if a PSU is working properly.
There are a few different ways to check a computer power supply. One way is to use a multimeter to measure the voltage output of the PSU. The voltage should be within a certain range, depending on the type of PSU. Another way to check a PSU is to use a power supply tester. This is a device that can be plugged into the PSU and will indicate whether the PSU is working properly.