WTB: WD5000AVS-00ZTB0, DCM: DHRCHT2CHB. If you have an old one laying around and want to sell it, I am looking for the circuit board/controller from this specific model as the last-ditch effort to retrieve the data from this drive. It spins up (no clicks), but absolutely will not be recognized by any computer/os, either in the original MyBook enclosure, or an assortment of usb/firewire enclosures. I also directly connected it to the mobo on my computer, and BIOS never saw it. Replacing the circuit board/controller will be my last ditch effort. Thank you.