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.
Sounds like a problem with the expansion board setup logic. What happens during boot is that only the first expansion board is visible at the Z2 base address of 0x00E80000. The system reads this, allocates it a new address, then the board goes away. Then the next expansion is available at the 0x00E80000 base address, it gets given a new address, it goes away and so on until no more boards are found.
Common things that can break this logic is a defective U600 on the A3000 Zorro riser board or also a defective expansion card. If you have any other expansions that you know work, you can isolate the problem to a specific card (i.e. when you can get any two Z2 expansion boards seen in early startup). Or isolate the problem to the A3000 hardware if only one of any two good boards will autoconfigure.
