Path: utzoo!mnetor!uunet!oddjob!hao!gatech!purdue!umd5!ames!netsys!tsl
From: tsl@netsys.UUCP (Tom Livingston)
Newsgroups: comp.sys.ibm.pc
Subject: Re: caution when cranking up the CPU clock
Message-ID: <5950@netsys.UUCP>
Date: 27 Feb 88 02:39:44 GMT
References: <49@vsi.UUCP>
Reply-To: tsl@netsys.UUCP (Tom Livingston)
Distribution: comp
Organization: NetSys Public Access NetWork,Germantown,Md.
Lines: 33
Keywords: 80x86, Intel, many MHz

In article <49@vsi.UUCP> friedl@vsi.UUCP (Stephen J. Friedl) writes:
>
>     The following is from Jerry Pournelle's column in _Byte_,
>March 1988 (page 183).  It is reproduced without permission.
>
>[article deleted]
>
>look under the hood
>before you buy!
>
>     Steve
>uucp : {kentvax, uunet, attmail, ihnp4!amdcad!uport}!vsi!friedl

	First, I wish to point out that this column had been written
(I believe) around Nov '87.
	Now, according to Jerry Pournelle (jerryp on BIX), he got this
information straight from the horse's mouth...  But, he apparently made
a bad assumtion -- he based his information JUST on 80386's and 80387, 
which were all being tested at that time (and are all still being tested).
BUT, according to other BIXen, this is not true for other, more 'mature'
type of chips, when quality tends to go up.  When they've met the
quotas for a certain (higher) speed, they are either not tested for that
higher speed, or tested but sold in a lower speed lot.  Also, Intel
testing procedures are much more strenuos than normal conditions, testing
extreames -- high/low voltages, hot and cold, and others, but still, they
have failed -- they'll probably fail with yours.  Not as large a 
caveat emptor, but still a think piece.

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                                              (_/ (_) / / / <_ Livingston
                                              { decuac,ihnp4 }!netsys!tsl