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From: burton@parcvax.Xerox.COM (Philip M. Burton)
Newsgroups: comp.unix.xenix,comp.unix.wizards,comp.unix.questions,comp.sys.ibm.pc
Subject: Re: Busted Newbury 1140 Fixed Disk (Aaargh! Help!)
Message-ID: <557@parcvax.Xerox.COM>
Date: Mon, 5-Oct-87 19:55:04 EDT
Article-I.D.: parcvax.557
Posted: Mon Oct  5 19:55:04 1987
Date-Received: Fri, 9-Oct-87 23:35:27 EDT
References: <4813@ncoast.UUCP>
Reply-To: burton@parcvax.xerox.com.UUCP (Philip M. Burton)
Organization: Xerox PARC
Lines: 35
Keywords: 140meg Newbury NDR Maxtor Problem!
Xref: mnetor comp.unix.xenix:912 comp.unix.wizards:4730 comp.unix.questions:4424 comp.sys.ibm.pc:8750

In article <4813@ncoast.UUCP> striker@ncoast.UUCP (Robert Forsythe) writes:
>
>
>I have just purchased a Newbury (read: Maxtor) 140meg fixed disk, low level 
>formatted it under DOS and installed it permanently under SCO Xenix V/386.
>mimics the seeks, etc. of the Priam... ) (-more98%- It also seems that the 1140
>is causing static interference at a scale large enough to produce "chatter" over
>the built in speaker on the AT!  How's that for incredible...?)
>
 

I have a Maxtor 1140 in my AT, which runs "only" a 286, but at 9 1/2 MHz using
a speedup product.  The damned thing is very noisy on head accesses, but I never
hear anything through the speaker.

Before you assume your drive electronics have given out, or your disk controller
has gone south,try the swap-out method of testing.  One note.  Unless you
use an identical drive/controller combination in your testing, you will have to
redo a low-level format each time you move things around.

But there are lots of other potential s for problems:

First try to press on your ribbon cable connections.  Also, take
out something from your AT, since you might simply not have enough power.  The
Maxtor takes about 4+ amps of +12V, and that could affect even the AT's power
supply.

If you know it's the drive, try to call Maxtor service for a repair.  Ask for
customer service.  They are nice folks.


-- 
Philip Burton       burton@parcvax.COM or ...!hplabs!parcvax!burton
Xerox Corp.         preferred path: burton.osbunorth@xerox.COM (Xerox net)
408 737 4635    ... the usual disclaimers apply ...