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From: fulton@comet2.DEC (Cathy Fulton -- CXO Technical Training)
Newsgroups: net.micro.pc
Subject: loud fan in Zenith Z-200
Message-ID: <2829@decwrl.DEC.COM>
Date: Wed, 7-May-86 14:55:06 EDT
Article-I.D.: decwrl.2829
Posted: Wed May  7 14:55:06 1986
Date-Received: Sat, 10-May-86 23:47:03 EDT
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 26

I own a Zenith Z-200 (AT compatible) computer.  As any of you who also own
one know, it has a very loud and irritating fan in the power supply.
After disassembling the power supply, I discovered that the fan is 12 VDC.
Interestingly, the IBM AT uses an AC fan in its power supply, and it
makes virtually no noise at all.  I have perused in vain several catalogs 
(Newark, etc.) for a fan that would be a suitable replacement AND BE QUIET!
The requirements of the fan are:

	12 VDC
	3 Watts
	about 3.14" square
	about 1" to 1 7/8" deep

Unfortunately, I don't know what the cfm rating of the present fan is.  By
comparing its output to other fans whose output I do know, I suspect that the
requirement is about 170 cfm.

If anyone has performed a successful fan replacement, or knows where I might
be able to get one, I would very much appreciate the info.

Thanks in advance.

- Cathy Fulton

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