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Article #20364Re: Hard Drive (wierd) Problem - Help!
From: Bob_BobR_Retelle
Date: Sun, 03 Jan 1993 21:40
Date: Sun, 03 Jan 1993 21:40
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Michael Forget wrote about his Megafile making noises.. There are two sources of such noises normally.. the first is a "head crash" where the flying read/write heads make contact with the spinning disk and gouge the surface of the disk. The material scraped from the surface will cause secondary crashes until the heads and surfaces are destroyed. The noise from a head crash will usually be a scraping and grinding sound. You do NOT want this to happen..! :) The second source of noise is a "ground strap" which serves to bleed off static electricity which would otherwise build up on the spinning platters. The place where this strap contacts the end of the axle tends to wear, allowing the strap to vibrate and make noises. This is not destructive, only annoying. There are ways to dampen the vibrations of the ground strap, but they require disassembly of the case, and possibly removing the pc board on the bottom of the hard drive itself. If you can get to it, a small blob of silicone sealer on the *outside* of the strap will often cure the noises. (A third source of noise could be failing bearings in the cooling fan, but it would be pretty obvious where that noise was coming from.) In the case of a head crash, you'd know it very soon, as the drive would become unreadable, and there would be many errors. From the description of the symptoms, and especially because the noise changes with the orientation of the drive, it sounds like the ground strap to me... BobR
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Path: arc1-ca.pugleaf.net!sparky!uunet!portal!cup.portal.com!Bob_BobR_Retelle From: Bob_BobR_Retelle@cup.portal.com Newsgroups: comp.sys.atari.st,comp.sys.atari.st.tech Subject: Re: Hard Drive (wierd) Problem - Help! Message-ID: <72815@cup.portal.com> Date: Sun, 3 Jan 93 13:40:47 PST Organization: The Portal System (TM) References: <H.eg.8xoBXXa8KAU@elfhaven.ersys.edmonton.ab.ca> <1992Dec31.114129.236@janus.arc.ab.ca> <1993Jan03.160353.269@donau.et.tudelft.nl> Lines: 35