PDP-11/45 Board Issues - test-drb@ccmp.vtda.org

7 Mar 2000

OK,
   The M8108 is in *really* bad shape.  As I said, it's split along the
card fingers, which means that just about every line going to the bus is
broken.  It also has a few chips that have been shattered, both along the
break and elsewhere on the board.  I, for one, don't have the skill to fix
it.

...
  It is possible
to run an 11/45 without the MMU, but in that case you need
a System Address Jumper (M8116 IIRC) that goes in place of one of the 2
MMU modules, the other MMU slot being empty. 
 Mine has a printed label across the top of the box labelling the slots,
 which says, on the slot containing the M8107, "If KT11C option [i.e. the
 MMU] not present, use M8116 S J B in this slot." 
Is the M8116 a simple jumper (a la grant continuity card)?  I think that's
probably the best move to kludge one of those together, if it's simple
enough.
Memory management is not all that important to me.

...
  I have CPU and MMU prints only (no manuals or FPU
prints) which I am very
 slowly scanning. Among the few fragments I have done so far is the M8108,
 so it would be easy for me to provide that to you if you think it might
 help. 
Kevin, I'd be interested to see the M8108 fragments.  If you have it,
I'd also be interested (probably moreso) in the M8116.

Thanks,
Michael