Has anyone else been getting this "main bios checksum error" and have it reflash itself back to the backup bios, which is still F2 for me? For some reason its happened to me 6-7 times already and Ive only had the board for about a week. It happens at random times overclocked and not overclocked, it did it this morning on a cold boot up at 4.8, yesterday it happened on the second boot up after just flashing to F6c with it still on factory defaults.