This has happened 3 times where in the middle of the night the PC shuts itself off and then won't restart. The only way I can get it up and running again is to flash the bios with a flash drive. This is a S1200BT server board running Windows 8.1 It's like the bios is erased for some unknown reason.
One time after it quit the bios would come up with a screen that said it needed help but with no options to fix it so I would have to reinstall the bmc and bios any ideas?