Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!ccu.umanitoba.ca!umcarls9
From: umcarls9@ccu.umanitoba.ca (Charles Carlson)
Newsgroups: comp.sys.mac.misc
Subject: Re: Ok.  I give.  What's with the MMU socket on MacII MC68581
Message-ID: <1990Sep14.203635.12895@ccu.umanitoba.ca>
Date: 14 Sep 90 20:36:35 GMT
References: <1990Sep14.005454.3917@bpdsun1.uucp>
Organization: University of Manitoba, Winnipeg, Canada
Lines: 29

In article <1990Sep14.005454.3917@bpdsun1.uucp> rmf@bpdsun1.UUCP (Rob Finley) writes:
>Ok.  Here is the scenario:
>
>I am sitting in front of a disassembled MacII with the Motorola 68581 
>memory management chip and I remove the fake mac chip expecting
>to be ready for the next release of Finder, et al.
>
>GAACK!
>Where did the rest of the ic pins go in the socket?  They match the
>fake one but not the real one... B-)
>
>Aside from desoldering and replacing the WHOLE socket, how is Apple
>planning on getting the rest of the connections to the MMU?  
>Offer a '030 retrofit?  Swap motherboards?  Instant old computer?
>
Same situation when I bought my used Mac II.  Apple offers a free board
swap if you have that older Mac II board. <Mine was done less than 2 months
ago so it is still valid!>   I'm not sure what Apple repair guidline it
fell under, but keep trying dealers until you find one who is willing
to do some digging.  Thats what I had to do.  In fact, most of the service
techs I talked didn't even know what a PMMU was. <where do they find
these knowledgable board swappers anyway?>  
Oh, and don't let them tell you that you have to buy the PMMU and show them
proof that you have it before they do the swap.
It was nice buying a 3 year old Mac II on the used market and getting
a new motherboard put in it.


Charles