Finally, in my A3000D, I got everything working and I didn't really do anything special but install a new Buster 11 from AmigaKit. This one goes to eeeeleven!

I now have all this working:
ZoroRam 128MB
Deneb
Toccata sound card
So, I can't prove it, but I think the new Buster 11 I got is different and happy in the A3000D. Before, the HD was freezeing up, computer locked up. The old B11 I tried before, my cat Yoie got it; was playing hockey with it and it's probably under the fridge. I don't miss it! Yoie knows how to fix theses things.