Dave <figured out how to open the access door in the back, and saw some cards in <there, but exactly how do they come out? i didnt want to just start pullin <in case they are locked in somehow. Two screws lets the door loose. Cards slide straight out(pull) the quad wide cards (cpu and mem) have levers at the end, some observation should make their operation clear. FYI cables need to be moved/removed to get at things in a ba23. Not order and position. This is a buss based system and buss continuity is partly based on position and adajacentcy. Depending on age amd options installed the mix of card could vary. Minimally there will be one cpu (top), at least one memory(4/8meg), A DHV11 8line serial, TQK50 tape(optional), DEQNA(NI), RQDX2/3 floppy hard disk controller. If there is a video console there could be one or two more cards. Allison