I have 2 1 TB Hitachi drives in a system with a Gigabyte X58 UD5 MB. The Hitachi's are not the boot drive. I wanted to set up the Hitachi's in a RAID1 as sort of super backup drive for my photo and music collection (which is on an external). I went through the RAID setup in BIOS, put the Hitachi's in the RAID1 volume and restarted. Seemed OK. The system won't start Vista 64 but just continally reboots, like it never looks for the OS on the non-RAID drive. Is it NOT possible to have the OS on a non-RAID drive with other drives configured as a RAID1?