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From: rjb@cbnewsj.ATT.COM (richard.j.bavier)
Newsgroups: comp.sys.tandy
Subject: Replacing a Hard Disk on a 16B/6000
Keywords: ST506
Message-ID: <2968@cbnewsj.ATT.COM>
Date: 20 Dec 89 22:00:54 GMT
Distribution: na
Organization: AT&T Bell Laboratories
Lines: 17

I have a problem similar to one I saw reported earlier.  I have a 16B that
has been upgraded to a 6000(PAL changes).  I wanted to replace the hard
disk I am using.  Currently I have a ST225 that works fine.  I want to
replace it with a CDC 86 meg drive.  I have been told the drive uses
the ST506 interface and is rated at 28ms.  When I try to format the
drive I get the error message "drive not ready".  When I put the drive
in an MS-DOS machine with a Western Digital controller it works fine so
I know I have the drive select jumper set correctly.  I have tried it with
and without the terminating resistor.  The machine works fine with the
original 15 meg drive and the ST225 so the machine seems ok.  I have tried
different cables in case one of the connectors was marginal.  Any ideas
would be helpful.  Thanks in advance.


Rich Bavier
attmail!rbavier
(201)576-2665