I had spent some time, socketing and moving around some of the oscillating crystals trying to diagnose a kludged together 12mhz A-board. I had temporarily removed the 68k and z80 crystals from a known working board. I put in some sockets for them, put them back when I was done and everything seemed to work just fine.
Fast forward a couple of days to today... I feel like playing some SF2 WW, plug in the aforementioned CPS1 and get graphics issues. I don't see the usual memory checks, it just goes straight to this. Reseated the B+C boards, same thing. Tried it on the 12mhz board without audio, and it seems to work fine (or as well as anything does on that board). No graphics issues, boots and runs without issue (but no audio, which is not unexpected).
Seems like I managed to kill my good A-board. Unless this could be caused by the crystal failing? Any input or assistance is most welcome.
Fast forward a couple of days to today... I feel like playing some SF2 WW, plug in the aforementioned CPS1 and get graphics issues. I don't see the usual memory checks, it just goes straight to this. Reseated the B+C boards, same thing. Tried it on the 12mhz board without audio, and it seems to work fine (or as well as anything does on that board). No graphics issues, boots and runs without issue (but no audio, which is not unexpected).
Seems like I managed to kill my good A-board. Unless this could be caused by the crystal failing? Any input or assistance is most welcome.