A3000 Zorro Bus issues

[AltRN8]

I have an A3000 that I am refreshing the AMIX install on. While checking the machine over I noticed that the two boards installed A2065 and A2410 are not showing up concurrently in expansion board diagnostics. I can get either of them to show up when they are installed alone but not when they are installed together. I'm pretty sure these boards should be compatible with each other so I am looking for ideas on what else could be going on.

Any thoughts would be appreciated.

[AltRN8]

first off thanks for the responses. While gathering information to respond I think I stumbled across the answer. Turns out I have a Buster 9 which apparently has issues with Zorro II cards when installed in a 16Mhz machine. The machine had a 68040 25Mhz which I had to pull to get AMIX installed. That would explain the problem I'm seeing completely. I tested some other working cards but they were all Zorro II. I'll have to dig out a Zorro III card to confirm but I'm pretty sure this is the issue.

My options I think are:

1) find an A3630 25Mhz with fpu.
2) downgrade the buster (not sure if this would help)
3) overclock my 16Mhz which I hear is doable and fine but also heard it is dangerous.

Thanks again for the help so far.

[AltRN8]

Buster 11 shares the same problem from what I've read.

[AltRN8]

I agree it's crazy to do but I've been on a mission for a while to do it. Why? Well that's most definitely the crazy part. I also not to long ago got A/UX running on some old Mac hardware. Maybe I just like really esoteric setups.

I'll probably give the overclock a try. After I get it working I'll probably end up shifting it back to a normal A3000.

[AltRN8]

This is a first revision A3000 for sure. The motherboard revision is 6.1 which I believe was the first production run.

Maybe I should just try running it on my A3000T since that's a 25Mhz system and put the A3640 back into the A3000.