🚀 go-pugleaf

I am in the midst of moving from a 2/170 to a 3/140.

The 3/140 has a CPU board that claims to be a 3/75M or 3/160M Rom Rev Rev
2.7 [sic], an ALM-I (Systech MTI-1600 in a Multibus->VME3 adapter), and
(for the moment) a Xylogics 450 (also in a Multibus->VME3). When I need to
talk to my 1/2" tape drive, out comes the ALM and in goes a Ciprico
Tapemaster (you guessed it: in a Multibus->VME3). All of this works for
the moment, but I have sitting here a very nice ~700 MB SCSI drive I want
to use. When I stick in a Sun 3 SCSI card, the diagnostic LEDs blink a
little, then stay in a state that according to an engineer at Sun means a
"bus error".  No boot screen ever appears on the monitor. RESET and
booting with the diag/norm switch in the diag position don't change
anything.

Placing the SCSI board in a known-good Sun 3/160 works just fine.  Taking
a known-good Sun 3 SCSI board of a similar type and putting it in the
3/140 results in the same behavior.

I have tried playing with the 5 backplane jumpers, but no change.

What have I overlooked?

Please help me out. I am stuck with a pair of M2312K drives instead of my
brand new monster SCSI drive. I am, unfortunately, unable to receive news,
but mail works for the moment. Thanks in advance.

Nick Sayer              | Think of me as a recombinant    | RIP: Mel Blanc
mrapple@quack.sac.ca.us | Simpson: Homer's looks, Lisa's  |   1908-1989
N6QQQ  [44.2.1.17]      | brains, Bart's manners, and     |  May he never
209-952-5347 (Telebit)  | Maggie's appetite for TV.  --Me |  be silenced.