The advantage of being exDEC. I had a lot of stuck rd53s and built up a lab MicroVAX system by fixing a few when noone could get their hands on stuff (budgets). I figured they were officially dead and the worst that could happen is they get deader. I'd scrounge bits and peices and trade RD53s as needed with other groups to get the needed bits. My boss was surprized when a request for node address came back to her for approval for a system under my desk. When she saw the BA123 with 3 RD53s and a RD54 she wanted one, I produced that one in about a week. Getting her the 19" color monitor was tricky though. ;) You will likely have success finding a board or another complete drive (with stickies). Now that you know how to fix them you may find an excess of the drives results. ;) Allison