Hello,
I assembled already about 4 GA-H55N-USB based systems but one of them all of a sudden stated shutting-off randomly 10 min after boot ( even under bios only ).
This system worked fine for about 2 month before starting to exhibit this behavior.
I first thought it was the PSU so upgraded it ( 600W ) but same issue still remains. Then swap the CPU still same. Then swap the RAM no change.
I tested very dumb down fail-safe min speed bios settings no change either.
My only thought is the mother-board. Is that a known issue ?
When the computer goes down it can't be started again for about 10 min after power cable has been disconnected.
Then it starts again but always goes down after 15 min regardless if I boot into the OS or stop at bios stage.
Thanks for any advice,