Article View: comp.sys.mac
Article #46256Re: 68882 vs. '881
From: Edgar Knapp
Date: Wed, 14 Feb 1990 20:07
Date: Wed, 14 Feb 1990 20:07
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In article <1990Feb14.050221.16897@wam.umd.edu> ddev@wam.umd.edu (Don DeVoe) writes: > > Can anyone tell me if the 68882 and '881 are pin compatible? I recently >obtained an '882, and I hope to replace my mac II's '881 with it. What I >need to know is A) will this switch work? B) Will I see any real performance >improvement? I kinda-sorta recall hearing that the '882 will work in a >mac II, but I don't really feel like risking my motherboard on it. [..] I have been running a 20 MHz 68882 for two months. It works without a hitch, and you do notice a performance gain, especially in programs like Mathematica that use the floating point chip heavily. By the way, I have both a 20 MHz and a 25 MHz MC68882 for sale ($150.- and $200.- respectively). Also, if someone wants my old 16 MHz MC68881 to use in an accelerator board it can be had for $50.-. Edgar (knapp@cs.utexas.edu)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!knapp From: knapp@cs.utexas.edu (Edgar Knapp) Newsgroups: comp.sys.mac Subject: Re: 68882 vs. '881 Summary: They are pin-compatible Keywords: FPU, 68881, 68882, pin-compatibility Message-ID: <7896@cs.utexas.edu> Date: 14 Feb 90 20:07:31 GMT References: <651@runxtsa.runx.oz.au> <1514.25d95a24@csc.anu.oz> <1990Feb14.050221.16897@wam.umd.edu> Distribution: usa Organization: U. Texas CS Dept., Austin, Texas Lines: 22