Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!bbn!rochester!pt.cs.cmu.edu!k.gp.cs.cmu.edu!dpm
From: dpm@k.gp.cs.cmu.edu (David Maynard)
Newsgroups: comp.sys.att
Subject: Re: 6300+ HDC Failure
Summary: Reseating the controller chips makes problem go away
Keywords: ATT 6300+, Disk Controller
Message-ID: <4868@pt.cs.cmu.edu>
Date: 1 May 89 13:52:52 GMT
References: <4766@pt.cs.cmu.edu>
Organization: Carnegie-Mellon University, CS/RI
Lines: 27

> Has anyone else had experience with the hard disk controller failing on a
> 6300+?  The System Diags sometimes get timeouts, sometimes return
> "controller failure," and sometimes pass.  Our friends have another 6300+
> with similar problems.

Based on the advice of one of your fellow news readers, I took the system
apart and reseated as many of the controller chips as possible.  Of course,
this also meant reseating the board itself and the drive cables.  When I
powered it up again it worked wonderfully.  I told our friends who had been
having the same problem.  When they reseated things, theirs was fixed too!

I don't know if this bodes well for the future of the system, but at least
things are up an running now.

Thanks for your help.

-David
 ---
 David P. Maynard (dpm@cs.cmu.edu)
 Dept. of Electrical and Computer Engineering
 Carnegie Mellon University
 Pittsburgh, PA  15213
 ---
 Any opinions expressed are mine.  I haven't asked the ECE department
 or CMU what they think, and I'm tired of getting in trouble when someone
 thinks I did.
 ---
--