quiet fans

[William Park]

On Fri, May 27, 2005 at 01:34:46PM -0400, Lennart Sorensen wrote:
> On Fri, May 27, 2005 at 06:05:05PM +0300, Peter wrote:
> > I guess one has to know where to look:
> > 
> > http://www.endpcnoise.com/cgi-bin/e/9dbPapst.html
> > 
> > Service life is at least 4 years. Note that this fan has sleeve bearings 
> > and spins at only 1000 rpm. Extrapolate to the usual 'screamer' at 5000 
> > rpm and you get under 1 year fan life with the same bearings. This 
> > reflects reality more or less (brand new screamers do not last 2 years 
> > as a rule). ebm/papst is a very well known fan manufacturer.
> 
> I sure won't buy it if it has sleeve bearings.  They tend to last only 6
> months in my experience.  Maybe these guys make special sleeve bearings.
> I can hardly hear my PC running and it uses ball bearing fans at about
> 1900rpm for the cpu and I think around 1500 for the case fan, and it's
> no problem.  The enermax power supply doesn't seem to make much noise
> either.

Make sure "ball bearing" is metal ball.  I had power supply fan which
had ball bearing sticker.  When I couldn't stand the noise, I took it
apart.  Plastic!

-- 
William Park <opengeometry-FFYn/CNdgSA at public.gmane.org>, Toronto, Canada
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	   http://home.eol.ca/~parkw/thinflash.html
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