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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!ihnp4!aicchi!bentley
From: bentley@aicchi.UUCP (Bentley)
Newsgroups: net.micro.mac
Subject: Re: Re: Disturbing rumor
Message-ID: <451@aicchi.UUCP>
Date: Wed, 24-Apr-85 10:27:23 EST
Article-I.D.: aicchi.451
Posted: Wed Apr 24 10:27:23 1985
Date-Received: Thu, 25-Apr-85 04:04:28 EST
References: <1397@bbncca.ARPA> <2019@sdcc6.UUCP> <2618@nsc.UUCP> <180@tmq.UUCP>
Reply-To: bentley@aicchi.UUCP (Bentley)
Organization: Analysts International Corp; Chicago Branch
Lines: 21
Summary: 

According to an Apple source here in Chicago, Apple will upgrade the ROMS
(dubious though it may seem) via board swaps, regardless of the fact that
the roms are socketed. Therefore, if a Mac has been modified (that is,
if the mother board has been changed), you not only blew the warrantee, you
blew the upgrade path as well. The Hyperdrive people are rumored to be
building up some kind of rom upgrade path of their own, since installing
a Hyperdrive involves changing a power supply as well as inserting fan and
drive, a concept that has bothered Apple in the past. They added a power
supply that is beefier than the standard Mac power supply because the 
standard one can only handle the requirements at hand; the addition of
more memory chips, for example, may indeed cause the existing Mac power
supply to short and provide an astounding amount of current to all the
components of the Mac; a movie was once made about the subject of
meltdowns...I am referring to, incidentally, of Macs larger than 512K.
A two meg Mac has melted, I've heard from indirect sources, and a 1 meg
Mac may do the same. *BEWARE*!!

The reason for the boardswap rom upgrade? ROMS have been known to fail
in circuit, and Apple wants to test them.

mike bentley (ihnp4!aicchi!bentley)