here's the story guys. I got a PC and my Power Supply is Seasonic S12 and my Motherboard is 970A-DS3P. whenever I pair these two, when I turn on the pc for about 1 hour the computer shutdowns no monitor signal and no light on keyboards complete shutdown, but the fans are still spinning. and it wont turn off by simply holding down the power button, I need to off the power supply in the back to make the fans stop because it's switching power supply.
when I turn it on again, it wont boot, no monitor signal but the fans are spinning. I need to pull out the rams and put it in again so the computer will boot. I tried other Power Supply (a cheap power supply) in my PC and it seems fine, no shutdown in 3 hours. I tried my Seasonic S12 to another PC, and it is fine too, no shutdown for 3 hours. but when I paired them again, it would restart after 1 hour. please help.
Cpu: fx 8320
Mobo: 970A-DS3P
Gpu: GTX 750 Ti Storm X
PSU: Seasonic S12 620W