Recently when I try to turn on my computer nothing happens. Not even a brief flicker or fan operation. Yes, I tried different outlets, cords, and checked if the switches were on. I thought it might be the psu so I installed another one I had that I know works but nothing changed. If the fans don't turn on at all shouldn't it be the psu? For about 2 months prior my PC would occasionally shut off and reboot unexpectedly. I don't know if that is connected at all to the problem. Any help is appreciated.