mrapple@quack.sac.ca.us (Nick Sayer) (03/16/91)
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.