How Do I Test a Computer Power Supply?
If your computer is not powering on, the fault could be related to the motherboard or the power supply. A faulty power supply does not deliver the power necessary to run the computer and can be expensive to replace. Testing your power supply to make sure it functions properly can save you money on computer repairs by ensuring you replace the right computer component. Put on your grounding wristband to make sure you are grounded while testing the power supply. Ground yourself against the metal case of your computer or a similar large, metal object by attaching the loose end of the wristband to the computer case. Test the electrical socket your computer is plugged into to make sure it provides adequate power. Shut down and unplug your computer from the wall socket. Use the multimeter to test the wall socket; if your wall socket is functioning properly, the multimeter should display an output of 120 to 240 volts. If your wall socket is not functioning properly, you should be able to run y
