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From: cgates@netcom.COM (Craig Gates)
Newsgroups: comp.unix.sysv386,comp.periphs.scsi
Subject: Re: INTEL 5.4 2.0 and Adaptec 1542B
Message-ID: <1991May21.200925.20345@netcom.COM>
Date: 21 May 91 20:09:25 GMT
References: <1991May20.145226.7155@march.co.uk>
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 23

In article <1991May20.145226.7155@march.co.uk>, rossw@march.co.uk (Ross Wakelin) writes:
> The INTEL 5.4 release 2.0 (developers edition) has buggy drivers for the
> Adaptec 1542B SCSI host adaptor.
> 
> We were using this adaptor in a 25Mhz Mylex 486 motherboard, and achieved 
> a record number of system lockups and crashes.  The machine would go away
> for a minute or so and then report a SCSI error.  At this point, our only 
> option was to reboot the machine.
> 
> We replaced the 1542B with a WD-7000 FAST card, and found that we still got
> the SCSI errors, but that the driver for the WD board recovered from the errors
> and let us continue processing.  Needless to say, we are now production on
> the WD board.
> 
I have the Adaptec 1542B running on a JDR 386 motherboard using this level
of Unix from Intel without a glitch, in fact I'm running both SCSI and IDE
drives in this system, unsupported according to the documentation from Intel,
for about 3 months.

I also know of a system using the WD-7000 FAST and also with IDE's again
no problems.

Craig Gates	(cgates@pops.navo.navy.mil)