I just pulled out a HD from a DELL XPS GEN4 and connected it to another computer, but it seems like the HD doesnt even come up. It spins up and seems to be running fine, but my win XP doesnt see it. Tried on win 7 with same results. On the original machine, the HD works just file like a regular HD with Xp installed on it. It is possible that it is a RAID because this computer has 2 HDs same size. If it's a RAID, how can I see whats inside the hard drive when I pull it out and connect it to a different computer?