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From: ralph@swmerc.rain.com (Ralph Merwin)
Newsgroups: comp.periphs.scsi
Subject: Adaptec 1542B with Micronics 386
Message-ID: <1991May10.150626.171@swmerc.rain.com>
Date: 10 May 91 15:06:26 GMT
Sender: ralph@swmerc.rain.com (Ralph Merwin)
Distribution: usa
Organization: Merwin Software Services, Inc.
Lines: 21


I'm trying to upgrade my system (Micronics 386 20mhz motherboard) with
an Adaptec 1542B controller.  When I try to run the DMA test, it fails
miserably, always the Read/Write FIFO test at address 20000.  Also,
depending on the DMA speed jumpering, I get I/O channel parity checks.
The controller seems to properly detect the presence of the wini and the
tape, but it won't talk to them (I assume because of the DMA problem).

I've tried disabling the cache on the motherboard, slowing the system
down to 8mhz, removing all other boards except the video, changing the
DMA channel used, changing the slot the 1542 is in.  All to no avail.
Anyone got any clues?

Thanks in advance.

Ralph
-- 
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Ralph Merwin - Merwin Software Services      ralph@swmerc.rain.com
6782 SW 162nd Drive, Beaverton, OR  97007    72170.151@compuserve.com
(503) 642-0256