> From: Allison Parent > Most Probable cause is interrupt grant is broken.
The only -11 that complains if the grant chain is broken that I know of is the /34 (maybe the /04 too). I certainly have a QBUS chassis right next to my workstation here that i) has a bunch of empty slots, and ii) works fine, as long as there are no empty slots between the CPU and the devices. Also, IIRC he said it works with 3 cards plugged in, but not 4; how can plugging a card _in_ cause grant problems? > For most microspheres backplanes the first three slots are different > than remaining. That might be worth checking into. I'm not familiar with the second box he's using, so can't help there. Noel