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Path: utzoo!mnetor!seismo!brl-adm!rutgers!dayton!meccts!meccsd!mecc!zeke!todd
From: todd@zeke.UUCP (Todd Burkey)
Newsgroups: comp.sys.atari.st
Subject: Re: Hard Disk Problem {BIZZARE}
Message-ID: <131@zeke.UUCP>
Date: Mon, 12-Jan-87 11:10:25 EST
Article-I.D.: zeke.131
Posted: Mon Jan 12 11:10:25 1987
Date-Received: Tue, 13-Jan-87 07:24:00 EST
References: <1014@chinet.UUCP>
Reply-To: todd@zeke.UUCP (Todd Burkey)
Distribution: world
Organization: Zycad Corporation, St. Paul, Mn
Lines: 15

In article <1014@chinet.UUCP> cabbie@chinet.UUCP (Richard Andrews) writes:
>ideas.  His machine is a 1 meg 520 with piggybacked chips (both installed
>by me) and TOS is in ROM.  My machine has the modulator and his doesn't,

You might want to look for noise on the RAM data/address lines. I had the
same problem because too thin a wire was used on my 1Meg upgrade. A fairly
thick wire is actually needed to reduce noise (reflections, etc).

  -Todd Burkey
  ..!mecc!zeke!todd

-- 
   -Todd Burkey
    ZYCAD Corporation
    ..!mecc!zeke!todd