Try it in a different slot? Try it with the memory removed?
As far as I recall from my experience testing that model of card, the memory should still show up even if you were to pull the ROM completely. So I don't think it's a ROM issue. Check that the jumpers haven't worked their way loose?
It doesn't show in Early Startup at all?
Do you perchance also have a GVP accelerator in the system?
At one point during testing mine was in the funny circumstance that I had both a GVP accelerator and a GVP HC8+ installed. As long as I had a ROM in the accelerator it could boot off the HC. There just had to be a GVP ROM "somewhere" in the system, LOL.

If I ever get around to my other A2000 project I'll have a Supra WordSync controller that I'll be trying to get rid of for cheap. But at this rate that might be next year, LOL.
