I went home for lunch a few minutes ago and noticed my computer was off. When I went to power it up, it posts, but then stops. BIOS LED on the board reads "SC". I tried pulling all the ram, reseating, single stick, clear CMOS, etc. No Luck. MB is a DFI LP DK 790FXB-M2RSh. PLEASE HELP!!! This is my new toy.