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Article #20174

Re: Run a 486/33MHz CPU at 40 or 50MHz?

#20174
From: Al Dhir
Date: Wed, 13 Jan 1993 00:17
31 lines
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In article <CARL.93Jan12112416@atlantis.Cayman.COM> carl@Cayman.COM (Carl Heinzl) writes:
>
>>|> Now the question is that how far you can increase the speed. There is
>>|> no rule here, it may run at only 1% or as high as 30% above the rated
>>|> speed.
>
>>Are DX2's as push-able ad DX's?  I.E. would you be likely to be able to
>>successfully raise 33mhz to 40 mhz, and with a DX2-66 have 80mhz internally?
>
>Very doubtful.  Remember, when you're pushing a 33 to 40 you're
>pushing a chip that was actually designed to run at 50 Mhz but this
>particular part didn't make the cut (at 50).

What in the world gave you this idea?  Do you have any clue how long it
took Intel to make the 486/50 chip so it would run reliably at 50mhz?  The
33 was out LONG before the 50, and is not, and never was, simply a 
rejected 50 chip.

>
>The real question to ask would be... "Has anyone successfully pushed a
>DX50?  And to what speed.  Of course the inherent problems with this
>scheme is that most motherboards are only designed to run at a maximum
>of 50 Mhz so it would be difficult to tell if the CPU is failing or if
>the motherboard is inducing the failure.

Truly an interesting question.  Also...what's the status of a 486dx2/100?
-- 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Al Dhir                      			   Technical Consulting Staff
 Internet: adhir@cygnus.umd.edu	  	 University of Maryland, College Park
 Bitnet:   adhir%cygnus.umd.edu@Interbit      (301) 405-1500 * (301) 405-3014
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References: <1993Jan8.172942.7869@news.clarkson.edu> <up47198@zola.esd.sgi.com> <CARL.93Jan12112416@atlantis.Cayman.COM>

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From: adhir@wam.umd.edu (Al Dhir)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Run a 486/33MHz CPU at 40 or 50MHz?
Message-ID: <1993Jan13.001730.20526@wam.umd.edu>
Date: 13 Jan 93 00:17:30 GMT
References: <1993Jan8.172942.7869@news.clarkson.edu> <up47198@zola.esd.sgi.com> <CARL.93Jan12112416@atlantis.Cayman.COM>
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