How To Check The Power Supply Of My Pc (Hot)

Maya smiled and handed him a multimeter. “Then you become a detective. Set it to DC voltage, 20V range. Touch the black probe to a black ground pin, red probe to a yellow wire—that’s +12V. Orange is +3.3V, red is +5V. If they’re off by more than 5%, the PSU is dying.”

If your PC won't turn on at all, you might suspect the PSU is dead. The Paperclip Test bypasses the motherboard to force the PSU to turn on. how to check the power supply of my pc