Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!rex!hoang
From: hoang@rex.cs.tulane.edu (Dzung Hoang)
Newsgroups: sci.electronics
Subject: 80287 speed question and heat sink glue???
Message-ID: <1716@rex.cs.tulane.edu>
Date: 22 Dec 89 09:01:01 GMT
Reply-To: hoang@rex.cs.tulane.edu (Dzung Hoang)
Distribution: usa
Organization: Computer Science Dept., Tulane Univ., New Orleans, LA
Lines: 21


    Thank you to the gentleman who sent me the necessary pinout info
for the 80287.  I connected pin 39 (clock multiplier) to 5V and that did
it, actually over did it.  The 287 is now running at 12MHz, a little over
the 10Mhz the chip is rated for and above the CPU's 10Mhz.

    Is running the 287 above its rated speed harmful or dangerous?  I know
that the chip will probably heat up more, but will it affect anything else
in the computer?  I do have a heat sink that I can put on the chip to help
cool it, but I don't how to attach the heat sink.  Is there a readily
available heat-conductive glue that I can use for this job?

    Replies to the above questions will be appreciated.

Dzung Hoang
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