Okay, I’ve got a custom built PC that I am trying to fix, the MB’s mosfet just burnt out so it was sent back RMA and now returned. Prior to the motherboard RMA the PC would not even turn on (fans etc).
Now, the PC will turn on and stay on (fans, etc) but the display shows nothing, as well as no BIOS beeps. The PC can sit forever and obviously not go anywhere, am I looking at a bad PSU? Or possibly the MB is still bad?
Also, if pressure is pushed add on the 24pin ATX power cable connection on the MB, then the PC shuts down completely. Maybe a MB short?
Completely clueless and I don’t want to RMA hardware I don’t need to, hope someone can help.