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From: vishniac@wanginst.UUCP (Ephraim Vishniac)
Newsgroups: net.micro.mac
Subject: Re: Re: Re: 1.5 Meg Upgrade from MacMemory
Message-ID: <1255@wanginst.UUCP>
Date: Wed, 23-Oct-85 15:55:16 EDT
Article-I.D.: wanginst.1255
Posted: Wed Oct 23 15:55:16 1985
Date-Received: Thu, 24-Oct-85 07:10:22 EDT
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Organization: Wang Institute, Tyngsboro, Ma.  01879
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> After talking further with MacMemory and with my hardware friends,
> I would like to clarify several issues discussed in my
> previous submissions on the MacMemory 1.5 Megabyte upgrade.
...
> The additional advantage, which I mentioned in an earlier article,
> is that you can upgrade to 4 Megabytes when megabit chips come out
> by making a further small modification to the board. This is a
> significant advantage in my view.
> 
> Finally, they offer a warranty on their board and (for additional
> money) a service contract on the whole Mac. They are negotiating
> with Apple right now for a deal like GCC worked out. If they can
> swing it, a MegaMac upgrade will not void your AppleCare and you will
> be able to get your Mac (except the daughter board I assume)
> serviced at an Apple dealer.

Can they swing it?  GCC got the deal they have because the new
Hyperdrive is a clip-on.  The Apple board is left untouched.  I don't
believe Apple will approve any upgrade that involves modifying the
Mac digital board.

> Now the disadvantages:
...
> 	Finally, the 256K chips on the board are soldered, not socketed.
> This means you will have to desolder them to replace them with 1
> Megabit chips. This is exactly analogous to a homebrew upgrade from
> 128K to 512K and should be no problem for someone handy with a
> soldering iron.

But again, I can't believe that Apple (or anyone else) will support this
after the user has plugged in his soldering iron.  The moral: don't
depend on what the maker says he's working on.  Wait until it's "on the
shelf."
-- 
Ephraim Vishniac
  [apollo, bbncca, cadmus, decvax, harvard, linus, masscomp]!wanginst!vishniac
  vishniac%Wang-Inst@Csnet-Relay