Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!motcid!kraco
From: kraco@motcid.UUCP (Carl Kraco)
Newsgroups: comp.periphs.scsi
Subject: Re: ST02 - doesn't work with ProDrive Quantum S80 - Why ?
Keywords: -
Message-ID: <5611@graphite13.UUCP>
Date: 18 Jan 91 13:51:52 GMT
References: <440@usun01.UUCP> <4f429ab7.20b6d@apollo.HP.COM> <1991Jan18.003222.15824@smsc.sony.com>
Organization: Motorola Inc., Cellular Infrastructure Div., Arlington Heights, IL
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tin@smsc.sony.com (Tin "Man" Le) writes:

>In article <4f429ab7.20b6d@apollo.HP.COM> angelini@apollo.HP.COM (Bob Angelini) writes:
>>
>>The Seagate ST01 and ST02 SCSI controllers will only work with
>>Seagate SCSI drives.


>  I can't let misinformation go by.  The ST0X will work with any SCSI
>  drives.  The ROM BIOS on the board is for DOS to make it look like
>  an ST506 controller.  Seagate drives (that is supposedly "specially"
>  prepared for the ST0X ctrlrs), simply comes pre-formatted for DOS and
>  has partitioning software on them.

>  That is about the only difference between "those" drives and SCSI
>  drives from other manufacturers.

>  I have personally used (am using) several different non-Seagate SCSI
>  drive with an ST02.

>-- Tin


I agree with Tin.  When the ST01 first arrived on the market, I 
grabbed one to use with a MAXTOR 4170 and MAXTOR 3x80s.  At first,
however, I was having trouble with the timing on the SCSI bus.
After several calls to SEAGATE to discuss the problems, one of the 
technical people at SEAGATE explained that the timing was controlled
from the ST01 BIOS and that it may not work with all SCSI drives.
He said that the BIOS on the ST02 had released the timing constraints
a bit and should work with ALMOST any drive.  As a result, Seagate sent
me a new BIOS EPROM that was labelled ST02 V3.1.  This cured all my problems
.  I have even tested several other manufacturers drives without problems.

Carl.