I tried an SD card with the bitmaintech firmware flashed on it and it booted successfully.  i could access the web config for the miner and watch as it hashed at 0 ghs due to no asic's installed.

i have NOT tried replacing the BBB from bitmaintech with this one, though, so i can't really confirm that it works.

If anyone does, i too would love to hear about it.  Like to know if my spare parts are usable as spares or not.