My computer had a power surge due to a thunderstorm recently. It damaged my network card, but after a few hours later my whole computer shut down and wouldn't turn back on. I reset the CMOS battery in my motherboard but all it did was start up the fans before shutting down again. I used the paperclip test on my PSU, and it worked but I heard it isn't 100% guaranteed. I used my old computers(2009. HP) motherboard on my current PSU and the fans started to spin for 5 seconds before stopping. But the PSU fans kept spinning. I used the 2009 computer's PSU(250w, probably not reliable) on my current motherboard and nothing worked. Is this a PSU or a motherboard problem?