Anyone have any suggestions for EXTREMELY quiet case fans? I'm after an 80mm one. Has anybody tried the "ultra quiet" fans from Pure Silence or Silenx?

i don´t tried them..but i use a 120mm Titan Fan @5V...nothing to hear

but the silent..i mean really silent are silent
but are they good enough for ur projekt?
can´t u use 120mm?
they are better,slower, more effective than 80mm...we all know

all those ultra silent ...... fans are not silent
I recently bought some 15€ fan because I though it might be good (960RMP default) and it was not ultrasilent as you might expect ...
and after just a few weeks it started to make some noise ... returned it ... but which fan runs quite well is my

revoltec dark red 120mm
http://www.revoltec.de/english/produkte/rl021.htm

it is audible at full speed @7V you can't hear it
and they do run without any problem for over a year or 2 now

ok....noname = BS ... almost forgotten
and i don't know ur Fan Companys...never heard of them....

so, u should really go for Revoltec or Papst (maybe too expensive)....and I Love my Titan Fans

revoltec fans are very inexpensive
even more at the time I wanted to buy a 120mm fan for my radiator the revoltec was the cheapest one with the fan speed I searched for

and I really started to like revoltec all their products are high quality and I only made good experiences up to now

Thanks as always for plentiful advice!

Nope, I've got to use 80mm I'm afraid - or else buy a new heatsink for my CPU that can deal with a 120mm fan!

ahhhh
u want to use it for CPU and not for Case??

Check out http://www.silentpcreview.com for tips.
Nexus gets good ratings..

Hey, I'm planning to get an Antec PC Noise Killer Kit and an ANTEC 80mm UV Fan.

ANTEC 80mm UV Fan Features::
-80 x 80 x 25.4 mm

-Volumetric Airflow 34 CFM

-Fan Speed 2,600 rpm (avg.)

-Acoustic Noise 30 dBA (at average rpm)

-Static Pressure 0.12 inch H2O



PC Noise Killer Kit Includes:

-1x Power Supply Noise Killer

-2x 80mm Fan Noise Killers.



So by adding the PC noise killer, it would reduce the noise level............

Fan Speed 2,600 rpm (avg.)

-Acoustic Noise 30 dBA (at average rpm)



this is NOT really a "noise killer"

if u have the chance...go for 120 or 140mm Fans

these dB values are absolutely without any worth ...
the only thing you should rely on is the fan speed
and a fan spinning with more than 1000 RPM is not quite ... thats a fact ... even 1000 RMP fans are often audible ... only fans with 700 and below are really silent
but this is only interesting for someone like me who does want a totally silent PC ... the everage PC user should take a 1000 to MAX 1500 RPM fan but do yourself a favor and stay away from fan that spin faster ... and Tt fans

I have made good experiences with the revoltec dark red/blue fan which is now running over years and does not make any noise @7V and is pretty quite at 12V

btw:

i got 2 of them for my Radi....

if only 1 is running....u can hear them, but it´s not loud....it´s ok, if both are running...mhhhh, it´s almost too much

and i have 1 of them running @5V in my other PC....that´s perfect
no sound and enough! air

nah don't get one of these ... they suck ... heavy not as quite as they should be at 960 RPM and after a week one of them started to make annoying sound
send them back