I picked up a used WD 2TB Green Drive to use as storage in my PC. I have verified the drive works in an external dock via USB. But it's not working internally. Under Device Manager it shows up under Disk drives (WDC WD1001FALS-00E8B0), but not under Disk Manager. The steps I took so far are replacing the STAT cable, deleting the partition that originally came on it via the dock. (Note: It will show up in Disk Mgr with the dock.), And refreshing the IDE ATA/ATAPI controller. It also shows up in the BIOS.