I picked up an HP 2100A a couple of days ago and before I do anything with it I'd like to find some hardware reference docs which describe the boards which should be installed, along with schematics and such. I haven't found a copy on the web. Does anyone know where a copy might be found? I have no idea if I have a full set of cards for a functional CPU. All of the blue slots are full of A1-A9 cards. I assume those are the main CPU logic cards. It also looks like there is a 4K two card core memory set (XYD/SSA) plus an 8K two card core memory set. Plus whatever the ID/IDL/DC cards do. The power switch key is gone. Is there a way to bypass that? Also the F5 fuse cap and fuse is gone from the back panel. I hope that is not a sign of power supply problems. The boards installed in the CPU card cages are the following: Front Cage Rear Cage A1 XYD -\ 02100-60052 top jumper A2 SSA(4K) -/ A3 SSA -\ 02100-60054 top jumper A4 XYD -/ A5 ID(16K) -\ \ ribbon cable top jumpers A6 IDL | / A7 DC -/ A8 A9 (twelve empty slots) TERM BUF'R'D TTY 12531 _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail