Newsgroups: comp.unix.sysv386
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!snorkelwacker.mit.edu!ira.uka.de!fauern!math.fu-berlin.de!fub!dobag.in-berlin.de!lumpi
From: lumpi@dobag.in-berlin.de (Joern Lubkoll)
Subject: Re: many baby-size 80486 motherboards fail with ISC 2.2.1 & 1542B & HPDD
Message-ID: <1991Jun13.225207.15089@dobag.in-berlin.de>
Organization: Dobag GbR - Berlin
References: <1991Jun12.222740.1053@aai.com>
Date: Thu, 13 Jun 1991 22:52:07 GMT
Lines: 31

leo@aai.com writes:
>What does this problem sound like?  My guess is that it has to do
>with the High Performance Disk Driver using the 1542B in bus
>mastering mode.  Does ISC do this?  If so, have all these board
>manufacturers made the same mistakes?  Other than this
>problem(!), the systems run fine.  If you have a baby-size
>motherboard that you use with ISC 2.2.1 and a 1542B, you might
>want to try a similar test.  Am I the only one to see this?

Never had any Problems with the following bioa/chipset-combinations:

80386SX, no Cache, Intel, AMI				(ugly slow)
80386-20, no Cache, Chips/Technologies, AMI
80386-25, no Cache, Chips/Technologies, AMI		
80386-25, Cache (Intel), Ti-Chipset, Phoenix
80386-33, Cache (Intel), Ti-Chipset, Phoenix
80386-33, Cache (TTL), Opti-Chipset, Ami
80386-33, Cache, Chips/Technologies, AMI
80486-25, Cache (TTL), Opti-Chipset, Award

I had about 50 Boards last year matching the above specifications,
every type of board ran fine with isc 2.02/2.2/2.21

No board tested worked properly with Intel SysVR4, 2.0.

jl
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