I had been having some intermittent freezing issues, even with a clean Windows 7 boot. My system has had a 1TB RAID0 stripe as it's main drive for a few years. (2 x 500gb). My BIOS were four years out of date, so I went ahead and flashed to the new version. BIOS flash was successful, new version was indicated on POST. My MOBO is an ASUS P5K-E/Wi-Fi, btw.
On reboot, the boot drive was not found. I entered the BIOS and fixed the SATA configuration so it was set to RAID. I went to the section with the BOOT order, and attempted to select the RAID as the first option, but it was not there. (Only floppy drive and CD ROM). I figured that since I had just enabled the RAID I probably needed to just reboot again.
On reboot, the RAID status popped up. It listed my two drives, indicated a RAID 0 Stripe and said "Bootable: Yes" I re-entered the BIOS to make sure that the RAID was the top BOOT option, however once again it was *not listed* in the list of Boot drives! Also in the BOOT section of the BIOS there is a tab that says "Hard Drives" The RAID0 *was* listed in that list. However I can find no way to get it to appear in the list of BOOT drives.
Is there possibly anything I could be doing wrong here? Some BIOS setting that I've missed? I have lurked on this site for years, and have often found solutions to my wacky problems.