Here is my issue. my pc's power supply broke a few blades. so i have to replace it. I am sure I hooked everything up correctly. My pc powers on. all ram is set in sockets correctly, the fans turn on and the GPU is set correctly, its not my first rodeo building pc's But like I said everything powers up. it just wont boot, monitors show nothing. neither GPU or the Mobo's on board VGA. is the mother board bad? or do i need to replace the CPU? how can i test and tell? every now and then I MAY get lucky and the pc boots up. but thats like an estreamly low chance. it only started happening after I messed with the PSU