home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!friend!friend!todd
- From: todd@kastle.com (Todd A. Scalzott)
- Subject: Re: Adaptec 1542 and me: no joy
- In-Reply-To: sridhar@cs.scarolina.edu's message of 27 Jan 93 22:21:14 GMT
- Message-ID: <TODD.93Jan28100757@todd.kastle.com>
- Lines: 41
- Sender: news@friend@kastle.com (News)
- Reply-To: todd@kastle.com
- Organization: Kastle Development Associates, Arlington, VA, USA
- References: <1993Jan27.144820.13741@crd.ge.com> <sridhar.728173274@fir.cs.scarolina.edu>
- Date: Thu, 28 Jan 1993 10:07:57 GMT
-
-
- In article <sridhar.728173274@fir.cs.scarolina.edu> sridhar@cs.scarolina.edu (M. A. Sridhar) writes:
-
- > toy@crd.ge.com (Raymond L. Toy) writes:
- >
- >
- > >I borrowed an Adaptec 1542B to use in my machine for a while to see
- > >how things would go. Sadly, they don't go very well.
- >
- > >I made a backup and then reformatted the disk using as suggested in
- > >the manual. Restored from backup, and everything was just fine.
- > >Everything would work just as it used to. Except when I pound on the
- > >disk reading and writing files. Then, BOOM---internal processing error.
- >
- > >It seems that under heavy disk activity, the whole system is flakey.
- > >It causes some program to halt with access violations. When the disk
- > >activity stops, and I rerun the exact same program, everything goes
- > >just fine. Other times the whole thing stops with an internal
- > >processing error. Usually trap e at the same location.
- >
- > I have never had good success with getting the Adaptec to work. I have
- > precisely the same symptoms as you describe, and with a similer
- > environment -- only I have *two* IDE drives on my IDE controller, in
- > addition to the SCSI drive. And I have a Wangtek tape drive. I have
- > just about given up on getting the SCSI drive to work under OS/2 for
- > now; I'm hoping that the 2.1 beta will behave better.
- >
- > Oh -- I do know this is not a hardware problem. The system works fine
- > under DOS and Dell Unix.
- >
- We just had a similar problem here. The system worked fine under DOS and
- Unix, but the BETA would crap out. What I found was that the DMA speed on
- the adaptec was set from 5.0MB/sec to 5.7MB/sec. Changing it to 5.0MB did
- the trick. The jumper is J5 (I believe), pins 12 and 13 open.
-
- good luck...
- --
-
- Todd Scalzott, Systems Programmer todd@kastle.com
- Kastle Development Associates ...!uunet!friend!todd
-
-