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From: sonny@charybdis.harris-atd.com (Bob Davis)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Original IBM AT CMI 20 Meg Hard Drive question.
Message-ID: <6259@trantor.harris-atd.com>
Date: 13 May 91 16:44:13 GMT
Sender: news@trantor.harris-atd.com
Reply-To: sonny@trantor.harris-atd.com (Bob Davis)
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Organization: Advanced Technology Dept., Harris ESS, Melbourne, FL
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	I have a CMI 6426-S 20 Meg Full Height Hard Drive that was used
in the original IBM AT -- as I understand it. This drive performs
FLAWLESSLY for 30 minutes and then a click is heard from the drive
(perhaps head-parking ?) and the drive is unuseable: nothing. Turn it
off, let it rest for a while, and then try again and it works perfectly.
Sounds like some kind of thermal problem on the circuit board to me.
	I have heard rumors that these CMI drives were abandonned by
IBM for such problems. My QUESTION IS: Does someone have any definitive
information about these problems? Do you have a theory as to what my
"thermal" problem might be? Is there a chip culprit on the board?
	You folks are such Wizards, surely Someone knows precisely my 
problem...:-)

	Thanks.

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