mike%jaguar.utah.edu@cs.utah.edu (Mike Hibler) (12/11/90)
Anybody know anything about these pups? I just tried one in a 400s with a selection of DIO cards: 98642A 4-port MUX works 98625B HP-IB ROM identifies and then "UNEXPECTED USE OF FFFFFFAC" 98658A SCSI ROM identifies and then hangs I get a Really Bad Feeling from this, it sounds like devices which do DMA don't work. The most comprehensive documentation I have seen on these adapters is from a price quotation and says: "Converts DIO-II interface in Model 400s to DIO. Includes all hardware and instructions." No documentation was included with any of the 6 adapters we received. Mike Hibler mike@cs.utah.edu ...!utah-cs!mike
rjn@hpfcso.HP.COM (Bob Niland) (12/13/90)
re: > Anybody know anything about these pups? I just tried one in a 400s > with a selection of DIO cards: > 98642A 4-port MUX works > 98625B HP-IB ROM identifies and then "UNEXPECTED USE OF FFFFFFAC" > 98658A SCSI ROM identifies and then hangs I talked to the lab about this. They tested all of those cards with the A1401A. They suspect one or more of: 1. Two cards set to same select code. 2. Defective A1401A. 3. Are you using more than two A1401As in the same computer? (This is unsupported and known-to-not-work.) > No documentation was included with any of the 6 adapters we received. We're looking at this. Regards, Hewlett-Packard Bob Niland 3404 East Harmony Road Internet: rjn@hpfcrjn.FC.HP.COM Fort Collins UUCP: [hplabs|hpu*!hpfcse]!hpfcrjn!rjn CO 80525-9599
mike%jaguar.utah.edu@cs.utah.edu (Mike Hibler) (01/19/91)
A while back I wrote: > Newsgroups: comp.sys.hp > From: mike%jaguar.utah.edu@cs.utah.edu (Mike Hibler) > Subject: A1401A DIO-II to DIO adapters for 400s > Date: 10 Dec 90 10:26:19 MST > Message-ID: <1990Dec10.102619.6775@hellgate.utah.edu> > Anybody know anything about these pups? I just tried one in a 400s with a > selection of DIO cards: > > 98642A 4-port MUX works > 98625B HP-IB ROM identifies and then "UNEXPECTED USE OF FFFFFFAC" > 98658A SCSI ROM identifies and then hangs > > I get a Really Bad Feeling from this, it sounds like devices which do DMA > don't work. ... False alarm. It turned out to be a bad backplane on the particular 400s machine. The HP guy said that, though not common, they have seen this problem before. Our other 3 400s's were just fine (why didn't I try one of those in the first place?) Thanks to Bob Niland for verifying that it should work. Mike Hibler mike@cs.utah.edu ...!utah-cs!mike