Hello All, Saw this thread while researching trouble with my EHD. I just upgraded to H3 4 months ago and tried to use a 500GB Maxtor EHD but it would not get recognized. I have used it in several Dish boxes (Vip 622, Dish Hopper with Sling). I have lots of shows archived on it. Anyway, I tried a Western Digital My Passport Essential SE 1TB USB 3.0(WDBACX0010BBL) using the supplied cable plugged into the USB 3.0 port at the rear. It works plugged into just the USB 3.0 port! 1. Using USB port to power EHD is possible but ymmv. 2. Anyone know why my Maxtor 500GB EDH is not recognized? Have searched many websites and this site but have not found an answer. Apologies to the thread starter for hijacking post but it seems like he got his answer. 3. Agree with Jim5506's suggestion of using smaller Drives to archive. If my EHD is dead then I just lost 500GB worth of shows. :-( Will be using the 1TB for now since that is all that I have atm.