PC Turns Off after just 3 seconds of pressing the power button

KubaBrdej

Commendable
Feb 3, 2017
2
0
1,510
I am having a problem with my pc, I gave it up for a repair so I can downgrade to Windows 7 instead of 10, After a couple of days the PC was ready, I got it, the guy told me that it works all good, everything is running well but when I plugged it in, the pc turned on, and off 3 seconds later, I was confused, I took it all apart, unplugged everything step by step to see what was causing the problem and when I unplugged the Processor and booted the PC again, it turn on and didn't turn off, I don't know what could be the problem other than the CPU, or the socket itself. I hope I won't have to replace the Motherboard