PDP-8/L - cards missing?

I've been having troubles getting '5' on the switch regiester of my PDP-8/L to show up in the memory address. Upon checking to make sure all the modules were in place, I found that, according to the PDP-8/L Mode Utilization Sheet in the PDP-8/L Maitenance Manual Vol II, the below listed cards are missing. I'm under the impression the M903's are not needed, but what about the rest of them? Are these cards I need? A B 15 M162 M119 16 M162 M162 34 M903 35 M903 36 M903 C D 10 M216 11 M113 16 M111 34 M903 35 M903 M903 36 M903 M903 Tom Owad -- Sysop of Caesarville Online Client software at: <http://home.earthlink.net/~tomowad/>