A computer’s power supply unit (PSU) provides electricity to the computer’s components, including the central processing unit (CPU). A properly functioning PSU is essential for a stable and reliable computer system. If you are experiencing computer problems, checking the PSU is a good place to start.
There are a few different ways to check a CPU power supply. One way is to use a multimeter to measure the voltage output of the PSU. Another way is to use a power supply tester. Both of these methods can be used to identify a faulty PSU.