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From: kelliher@psuvax1.cs.psu.edu (Thomas P Kelliher)
Newsgroups: comp.sys.tandy,comp.sys.ibm.pc
Subject: HD upgrade on Tandy-1200
Message-ID: <1989Dec20.171245.23555@psuvax1.cs.psu.edu>
Date: 20 Dec 89 17:12:45 GMT
Sender: Thomas P. Kelliher
Organization: Penn State University Computer Science
Lines: 18

I have a Tandy-1200 with 256K RAM running DOS 2.11.  The machine has two
full height drives, one a 360K floppy and the other a 10M HD.  The HD is a
Tandon with a Western Digital Controller.  The ROM Bios is Tandon version
2.6, dated 2/4/85.

Something in the HD sub-system (SS) seems to have taken a dive (for the second
time).  The low-level formatter marks every sector as bad.  I have been told
that this particular HD SS has reliability problems.

My questions are as follows: Is it possible to replace the current HD SS with
a ST-225 or a Hardcard?  Will a ST-225 fit into the drive bay?  Would it be
worth it to have the current HD SS repaired (for the second time)?  The first
repair held for about two months.  If I can upgrade to another HD, does the
ROM Bios or anything else need to be upgraded simultaneously?

In advance, thanks for your advice.

Tom Kelliher,  Penn State,  kelliher@psuvax1.cs.psu.edu