I’ve successfully transplanted a SGB CPU into my DMG.
Everything seems to be working fine only hang up is that there is no audio coming from the speaker.
I was wondering if this might have something to do with SGB CPU lacking speaker capabilities?
the SGB is identical so it has full sound support. check your solder connections, one thing i always had to redo when swapping CPUs was the link port, those pins always needed a second run with the soldering iron.
otherwise check your front board does actually work, the wires to the speaker are very bad
Figured it out, I had accidentally traced back the ground lead instead of the speaker switching mechanism lead.