Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!sleepy.cs.unm.edu!mark
From: mark@sleepy.cs.unm.edu (Mark McLaughlin)
Newsgroups: comp.sys.mac
Subject: The PMMU on the Mac II
Keywords: PMMU, 68851, Macintosh II
Message-ID: <2295@unmvax.unm.edu>
Date: 2 Mar 89 14:55:17 GMT
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Reply-To: mark@sleepy.cs.unm.edu ()
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Organization: University of New Mexico at Albuquerque
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I have a Macintosh II and in anticipation of running A/UX need to obtain
the 68851 Paged Memory Management Unit (PMMU).  I have a few questions,
however, which I was hoping somebody out there might be able to answer.
First, what comes with Apple's product #M0221 68851 PMMU, i.e., if I
bought the chip through Apple what do I get--just the chip itself?
Second, what is the exact chip number?  There are several versions of
the MC68851 running at different speeds.  I think it might be MC68851RC-16A.
If someone out there has a Mac II with this chip perhaps they could look
at it and get the precise number.  And finally how do I install the chip,
i.e., where exactly does it go?
Any help would be greatly appreciated.

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Mark A. McLaughlin
Applied Computing Systems, Inc.
(505) 662-3309
mark@sleepy.cs.unm.edu