ergh. Still fighting this battle eh?
I tried several used drives to no avail. I then started back to the beginning and went through the list of compatible drives recommended my DPS in the manual. So far I've gotten two 4 gig drives running. The rest are now paper weights. Try to stick with Seagate drives. Don't have any drive numbers at the moment 'cuz the computer loft is a mess. In the middle of moving.