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Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!houxm!hogpc!houti!ariel!vax135!cornell!uw-beaver!tektronix!hplabs!hao!ward
From: ward@hao.UUCP
Newsgroups: net.micro.apple
Subject: Re: A proposal for Mac upgrades
Message-ID: <1193@hao.UUCP>
Date: Sun, 7-Oct-84 18:44:06 EDT
Article-I.D.: hao.1193
Posted: Sun Oct  7 18:44:06 1984
Date-Received: Tue, 9-Oct-84 03:00:27 EDT
References: <227@ssc-bee.UUCP> <352@wlcrjs.UUCP>
Organization: High Altitude Obs./NCAR, Boulder CO
Lines: 18

> From what I have heard and read, there is NO difference between the 128K
> boards and the 512K boards except for the type of RAM chips installed.
> In other words, the boards were designed to take either type of chip from
> the beginning (or sometime around then).  

Apple now says that there were four versions of the 128K board
made, and the latest version is identical to the 512K board.
Hardly "from the begining".

Also, some expensive and difficult to use de-soldering equipment
is needed to remove the old chips.

-- 
Michael Ward, NCAR/SCD
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