Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!apr!las
From: las@apr.UUCP (Larry Shurr)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Computer problems.
Keywords: Seagate ST-251, AT clone
Message-ID: <473@apr.UUCP>
Date: 5 Aug 88 17:26:54 GMT
References: <3341@rayssd.ray.com>
Reply-To: las@apr.UUCP (Larry Shurr)
Organization: APR, Columbus, OH
Lines: 34

In article <3341@rayssd.ray.com> trr@rayssd.ray.com (Terry R. Raymond) writes:

>I have an AT clone (Uniq 286) with a Seagate ST-251 hard disk.

>Question #1

>When I turn off the power the disk drive chatters briefly.  Would somebody
>who has experience with this behavior please tell me if it can cause
>problems.  Should the drive be returned or is this normal?  Please, no
>speculations I can do that myself.

OK, I don't know the details about the ST-251 so I could be wrong, but:
Sounds like you have a noisy hub brake.  I have an ancient TI 10 Mbyte
hard disk (Seagate clone, ST-512 - I think) in my TI pro.  It has made
a horrible scraping sound on power-off since it was new... about five
years ago (or was it six?).  The disk would have to opened up on a
"clean bench" (sort of like a miniature clean room) to clean and adjust
the brake in order to get rid of the noise.  It didn't seem worth the
trouble.

Until recently, I had an ST-251 in my AT&T PC at work and there are
many others in the area.  Mine buzzed slightly on power-off, but
nothing really dramatic.  Others were/are essentially noiseless.  My
TI's scrape is not normal, though harmless.  Your 'chatter' is prob-
ably not normal, though probably harmless.  Still, it's not normal -
if the sound is disturbing and you can get a replacement for free,
consider playing it safe.

regards, Larry
-- 
Who: Larry A. Shurr (...!osu-cis!apr!las or try {cbosgd,ihnp4}!cbema!las)
What: "The only thing worse than being talked about is not being talked about."
Where: _The Portrait of Dorian Grey_ - Oscar Wilde
Disclaimer: The above is not necessarily the opinion of APR or any APR client.