I have some Sophia units, and I'd like to get at least one booting. I've found a PDF of the user's manual and ensured the dipswitches are correct (I don't have an SCSI card yet so I've turned off all SCSI-related ones, and selected the correct region) but all I get is a blank screen.
I've done plenty of reading and most sources say they need a POD and an ICE (the E7000 seems to mentioned a lot) or a second SH2 chip. I've opened them up and they're all sporting two of these snap-on cards:
Are those the SH2 chips required?