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From: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Newsgroups: comp.sys.mac,sci.electronics
Subject: Re: MAC-II fan noise
Keywords: noise, fan, headache
Message-ID: <6186@polya.Stanford.EDU>
Date: 18 Jan 89 16:31:11 GMT
References: <494@phoibos.UUCP>
Reply-To: kaufman@polya.Stanford.EDU (Marc T. Kaufman)
Organization: Stanford University
Lines: 14

In article <494@phoibos.UUCP> ge@phoibos.UUCP (Ge Weijers) writes:

>              ... Does anyone know how to reduce the noise, e.g. by replacing
>the built-in fan with a silent type that is powerful enough to keep the
>temperatures low?...

Replace the power supply fan with one from Radio Shack (part no. 273-243,
$14.95).  Instructions for doing this were posted on the net some time ago,
but even without instructions it is obvious once you open the power supply
case.  The RS fan is 27 cfm as opposed to the original 32 cfm, but is so
quiet that you think something is wrong -- because you can hear the disk arm
positioning.

Marc Kaufman (kaufman@polya.stanford.edu)