I have a Gigabyte GA-K8VM800M mobo and the latest version of Award Software BIOS. Until last week my SATA I drive was working great. The Windows Media Edition w/ sp2 started to freeze after a few minutes of video. Then it didn't even recognize the drive in the BIOS. I put the drive in a Mac Pro and it was recognized w/o any problems. I added a brand new Seagate SATA II drive and changed the jumpers to SATA I mode and that was not recognized by the BIOS. After I exit the BIOS VIA Technologies Serial ATA RAID Bios setting utility V2.31 recognizes the both of the SATA drives. When I go into the BIOS I do not have a SATA mode option in the Integrated Peripherals screen. What might be the reason I can't see a SATA mode option in the BIOS? Could the both SATA0 and SATA1 connections on the board be bad? As I was typing this the computer shut off by itself while I was viewing the BIOS. What might be causing the computer to shut off by itself? O vay! Thank you for looking.