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Article #1132Re: Can 16MHz 80387 be installed in a 33MHz 80386 system?
From: STEPHEN HUFNAGEL
Date: Wed, 23 Dec 1992 07:00
Date: Wed, 23 Dec 1992 07:00
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>: > I have been told that you can install a 16MHz '387DX in a coprocessor >: > socket to work with a 33MHz '386DX and it will work ok (running Math >: > instructions at the 16MHz rate). I am not convinced. Has anyone done >: > this? How does it work? Are their any jumpers that must be set? This will only work if the systems mother board is designed to do it. I had a 20 MHz 386 with a 16 MHz 387 socket (at the time there was no 20 Mhz 387) about four years ago, but the 387 socket had its own 16 MHz clock. Unlike the main processors you must NEVER run a 80x87 faster than the rated speed. ----------------------------------------------------------------------------
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Newsgroups: comp.sys.intel Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!news.uta.edu!utarlg.uta.edu!b645zjx From: b645zjx@utarlg.uta.edu (STEPHEN HUFNAGEL) Subject: Re: Can 16MHz 80387 be installed in a 33MHz 80386 system? Message-ID: <23DEC199201000791@utarlg.uta.edu> News-Software: VAX/VMS VNEWS 1.41 Sender: news@utagraph.uta.edu (USENET News System) Nntp-Posting-Host: utarlg.uta.edu Organization: The University of Texas at Arlington Date: Wed, 23 Dec 1992 07:00:00 GMT Lines: 15