My Nvidia raid is totally sucking. It's just not up to the performance of my older Sis RAID (or what ever it was called)on another board. Maybe something is going wrong with one of the drives, I don't know. Anyway... 2 Raptor74k drives I want to use just one drive. I removed a bunch of stuff cleaned up the system and got down to just 27 gigs usage. backed it all up to the Acronis safe zone, disabled RAID, removed one drive and arranged the bios boot for 1 Raptor. The restore when fine, rebooted and got the error "Your bios is not ACPI ready", or something like that. I disabled the ACPI and still no go, it would just hang. Tried it 6 different times swapping drives, nothing would work not even safe mode, I would only let it hang no more then 5 minutes. I put everything back the way it was, enabled raid, restored, now I am here typing this problem for someone to help me out. Is it possible to go from raid to non-raid? I just ordered a 500gig PATA drive yesterday so I can get rid of RAID for good and have more space. I feel I will run into this same problem. HELP New drive will be here Wednesday.