I am using an Asus P5W DH Deluxe with a 500gb sata drive which contains my OS. I purchased a 1T sata drive for extra storage. At this point in time, I do not wish to run a RAID. When I connect the 2nd hard drive, however, the system doesn't detect any of the hard drives; but if I unplug the 2nd drive, the system boots up. I suspect my problem is withing the Bios settings, I'm just having a little trouble pin pointing it. I'd appreciate any suggestions.