The 11/93 is hardly "classic", but to my DIGITAL collection it is still a nice addition and I would like to get it running. I agree with Jerome that the M9047 grant continuity card could be removed and move all other boards one position 'up', but the system had the M8047 when I got it, so I left it there. Perhaps the cooling of the cpu board is better ... That is exactly what I have. It is an 11/93 in a BA23 box. I read somewhere that the 11/94 uses a KTJ11 (?) board to bridge to UNIBUS, and that the 11/94 system comsumes more power. The rear panel that connects to the M8981 in my BA23 box has the following parts on it: + 8 9-pin D-shape (DE-9) connectors for 8 extra terminals + 1 25-pin D-shape (DB25) connector with "CONSOLE" text next to it + 2 7-segment displays + 1 DIP switch block with 8 switches The M8981 board has on the front side a 40-pin male header, next to it are the 8 LEDs followed by a 50-pin male header. Behind the LEDs is an other DIP switch module. The 40- and 50-pin headers are connected to the rear panel with 2 flatcables. I am still looking for the DIP switch positions. I will gather all info on the 11/93 and put it on my website. Of course with several pictures of the system. Several Google searches did not produce much technical detail info. TIA, - Henk.