Never Mind: MicroVAX 3

From: Allison J Parent <allisonp_at_world.std.com>
Date: Mon Sep 6 08:35:49 1999

<I solved my problem. Moved the TQK50 to the next row after the RQDX3,
<instead of beside it and it works fine. Don't quite understand that, sinc
<I'm positive I had the RQDX3 and TQK50 in the exact same spot with the
<KA650 board set as they'd been with the KA630 board set, and I saw it
<working in that config.

There is a priority and TK50 should be higher than RQDXn. Higher prioity
means closer to the cpu. In most of the BA23/123/213 boxes the bus is
serpetine so it may not always be obvious whos first.

<Does a system care if you've got a grant continuity board in a spot that
<you shouldn't have a board? It seems to me that it should.

If it's the AB wired bus YES! Without it there would be no interrupt or dma
grant down the line to what ever cards are next.
Received on Mon Sep 06 1999 - 08:35:49 BST