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From: sdyer@bbnccv.UUCP (Steve Dyer)
Newsgroups: net.micro.pc
Subject: Re: AT xtal anecdotes
Message-ID: <129@bbnccv.UUCP>
Date: Wed, 3-Jul-85 11:36:59 EDT
Article-I.D.: bbnccv.129
Posted: Wed Jul  3 11:36:59 1985
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Organization: Bolt Beranek and Newman, Cambridge, MA
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> I am curious if you had the regular math coprocessor 80287 installed too.
> I have heard that it normally operates at 4MHz (1/3 of the clock rate).
> How does it behave at beefed up clock rates?
> Thanks Rajiv

Yes, I have a 287 installed also.  I guess it must be running at slightly
over 6MHz, since my crystal is roughly 18.4Mhz.  The IBM coprocessor
diagnostics and a separate set of diagnostics from MicroWay all continue
to work without errors--naturally, I can't vouch for how it will behave
in the long term.  So far I haven't noticed any anomalous calculations.

By the way, I haven't noticed any heat-related problems--I can keep the
machine on all day and it continues to work.

-- 
/Steve Dyer
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