Well in Device Manager it shows up under Disk Drives, but won't show up in My Computer. WD 300gb SATA. Currently using 2 WD Raptor's in RAID 0 as the boot. So this is just secondary storage Bought it OEM from New egg so not much to help me figure this simple thing out. Basically just tried to Plug N Play Can someone remind me how stupid I am and what I missed.