As a long time MMR owner, one quick question and answer solves this mystery. Did the MMR have a 68K plugged in when the system booted?
If yes, then it's possible the card is bad and the system booted from the piggybacked 68K. Bid accordingly.
If no, then the card is definitely good as the system could not have booted. The additional software does things like map the expansion ram, move kickstart from rom to ram and turn on cpu features like mmu and has nothing to do with booting.
@LoadWB
That about covers it for me as well.
Plaz
