Have an old WD5000 2006 NAS drive that won't power up. Removed the drive from the case and connected it inside my rack mount. Under Win 7 device manager, it's reported, yet Win 7 isn't initializing. No SATA expert, look like what was said about a proprietary interface could be positive. When all else fails, tear into the electronics. On the controller board, can follow 5/12 volts across a few caps, then one that is slightly bulging 2 volts. Going to replace the cap, see if the board comes back up, get my data and NEVER buy a WD product again :)