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From: oneel@heawk1.gsfc.nasa.gov ( Bruce Oneel )
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Noisy Fan - Looking for a good trick
Message-ID: <ONEEL.91May17102620@heawk1.gsfc.nasa.gov>
Date: 17 May 91 14:26:20 GMT
References: <1991May16.185539.10519@m.cs.uiuc.edu>
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In-reply-to: kadie@m.cs.uiuc.edu's message of 16 May 91 18:55:39 GMT

In article <1991May16.185539.10519@m.cs.uiuc.edu> kadie@m.cs.uiuc.edu (Carl M. Kadie) writes:

   My PC often makes a high-pitched whine. The whine is more common when
   room temperture is high.  I think the noise is caused by the power
   supply's fan (since the fan and the hard disk are the only moving
   parts, and I've replaced the disk drive [for other reasons]).

   Replacing the whole power supply would be expensive. It would also be
   difficult to find one that is the right size with the switch at the
   right place.

   I have replaced the fan (cost: about $12 from Radio Shack). But that
   did not stop the whine. I think the problem is that the fan is
   vibrating the power supply box.

   Does anyone know of any tricks to stop the power supply from vibrating
   (like washers or something)?

   Thanks,
   Carl

First, try turning off the monitor and see if the noise goes away.
Monitors are notorious for high pitched whines.  Switching power
supplies such that pcs use cost in the $50 to $100 range.  It might
not be too expensive to just replace the whole thing.

bruce

--
Bruce O'Neel              oneel@heasfs.gsfc.nasa.gov
NASA/GSFC/STX/Code 664