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From: bill@bilver.uucp (Bill Vermillion)
Newsgroups: comp.sys.misc
Subject: Re: fan question
Message-ID: <1990Dec17.020027.17605@bilver.uucp>
Date: 17 Dec 90 02:00:27 GMT
References: <9012130133.AA24147@polar.bowdoin.edu> <6606@suned1.Nswses.Navy.MIL>
Distribution: na
Organization: W. J. Vermillion - Winter Park, FL
Lines: 19

In article <6606@suned1.Nswses.Navy.MIL> zaft@nswses.navy.mil (Gordon C Zaft) writes:
>In article <9012130133.AA24147@polar.bowdoin.edu> poulin@POLAR.BOWDOIN.EDU (Jeff Poulin) writes:
>>Here's a dumb little question that I'm not sure of the answer.  Which
>>direction should the fan be blowing: into the power supply or out of it?

>	Fans on power supplies should never blow into the cabinet, always
>OUT.  The idea is to draw cool air into the cabinet, across the cards,
>through the power supply and out.

A quick addendum in addition to my previous post.  Everyone keeps thinking
of the fan as part of the power supply.  In a "assemble" the component type
industry that at least makes sure the power supply doesn't burn up, but the
fan really should not be part of the power suppy, it should be part of the
cabinet, and the cabinet should be designed to direct the air flow
appropriately.

-- 
Bill Vermillion - UUCP: uunet!tarpit!bilver!bill
                      : bill@bilver.UUCP