Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!decwrl!nsc!voder!apple!wrs
From: wrs@Apple.COM (Walter Smith)
Newsgroups: comp.sys.mac
Subject: RS Mac II fan upgrade caution
Message-ID: <12549@apple.Apple.COM>
Date: 21 Jun 88 01:28:20 GMT
Reply-To: wrs@apple.com (Walter Smith)
Organization: Apple Computer Inc, Cupertino, CA
Lines: 40

IMPORTANT DISCLAIMER:
As an Apple employee, I want to make sure everyone understands the obvious:
Apple does not endorse, recognize, or even contemplate the possibility of
someone ripping their Mac apart to change their fan.  If you should be
reckless enough to do it, it's as the man says in Blood Simple: y'on y'own.
Your warranty or AppleShare will vanish in a puff of smoke.  Enough said.
			--------------------
I might have read these messages about fan switching and rushed out the
next day to buy some fans at the local Radio Shack.  In fact, I might have
just installed three of them in some Mac II's here at work.  They
might actually work.  I might be amazed at how much quieter these Macs are.

But I wanted to warn people about the following situation: two of
three Macs I looked at had Sony power supplies that had nothing to do
with the instructions posted here, which apparently deal with Astec
power supplies.

The Sony supplies are slightly harder to deal with than the Astecs
because they have a little PC board mounted above the fan.  You have
to untwist a metal tab and slice through some silicone cement holding
the board to the fan, then take the board out.  Also, it's a bit
difficult to get the fans in and out, due to a tight squeeze between
the fan and some capacitors.

However, it's not all bad.  The fan is held in with long screws that
go all the way through to little brackets on the other side, so you
don't have to deal with the press-in nuts.

Anyone with some experience playing with the insides of equipment like
this will have no trouble figuring it all out.  But the posted
step-by-step instructions are mostly useless--the case doesn't even
open the same way--so if you were relying on them, check the name on
your power supply before proceeding.

- Walt
--
Walter Smith		Apple Computer			wrs@apple.com
			Special Projects		(408) 973-4015
Disclaimer:
Anyone who thinks I might be representing Apple Computer, Inc. in any
official capacity on Usenet, of all places, has a serious attitude problem.