Ok, but my hunch, experience is that , when you say
"Buster 11 only supports 1 bus master"
I agree but, onboard SCSI gobbles this up, and no DMA left for the Zorro slots...
Sorry for the delay, but my A4000T test machine is under rework now (capacitors, once again). I can make tests with DENEB and SCSI / Buster11 as soon as the machine is up and running again.
Stay tuned. Michael