Re: Can I use 8087 on 80286 motherboard?

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From: Milind D Paranjpe
Date: Thu, 30 Jul 1992 19:17

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In article <1992Jul28.044519.9681@leland.Stanford.EDU> paranjpe@leland.Stanford.EDU (Milind D Paranjpe) writes:
>I finally upgraded from an 8088 to an 80286.  Can I use my 8087 on the new
>motherboard?  I noticed that the motherboard has a 14.31818MHz crystal near
>the 80287 socket.  Does this mean that the coprocessor actually runs at
>4.77MHz?
>

The following cobinations are possible

8086 and 8088           with 8087
80186 and 80188         with 8087 (need a special chip for signal decoding)
80286                   with 80287
80386                   with 80287 (not for 386 mode)
80386                   with 80387
80386SX                 with 80387SX
80486SX                 with 80487SX


Frank

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Message-ID: <1992Jul30.191748.29517@leland.Stanford.EDU>

Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!leland.Stanford.EDU!paranjpe

References: <1992Jul28.044519.9681@leland.Stanford.EDU>

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Newsgroups: comp.sys.ibm.hardware,comp.sys.ibm.pc,comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc
Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!leland.Stanford.EDU!paranjpe
From: paranjpe@leland.Stanford.EDU (Milind D Paranjpe)
Subject: Re: Can I use 8087 on 80286 motherboard?
Message-ID: <1992Jul30.191748.29517@leland.Stanford.EDU>
Sender: news@leland.Stanford.EDU (Mr News)
Organization: DSG, Stanford University, CA 94305, USA
References: <1992Jul28.044519.9681@leland.Stanford.EDU>
Date: Thu, 30 Jul 92 19:17:48 GMT
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