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Need advice on fans.

post #1 of 5
Thread Starter 
Hi there,
First off-sorry not sure if this is in the right section. I'm looking to buy some new or second hand fans to put in my Fractal R2, as seen in my sig build, to aid in the cooling and provide better airflow. The issue is I'm having trouble deciding what fans to get. I would like to water cool later so I've been looking at fans with good static pressure like Corsair's SP and AF series fans. I want silence though and at about 24db I don't really want them. I've seen a few decent looking deals on second hand fans, one of them is 3 of these: http://www.noctua.at/main.php?show=productview&products_id=5&lng=en which would be $50 inc postage. The other deal is 2x AF140mm and 1x AF120mm which would be about $50 inc postage as well. I am facing a dilemma because I like the Noctua's because they are very quiet, but I don't like the brown/cream colour scheme at all as my case is black/white themed. I like the Corsair's because of the look and the static pressure and airflow and they are much newer than the Noctuas (2 weeks old compared to 3 years old). I simply can't decide which deal to go for. The Noctua's don't bother me too much in terms of the colours- I can live with that, but I would like some input as to whether you think that they would be good for use in a radiator for example when I water cool. Haven't decided on any parts yet so please don't ask me if I'll be using slim/thick radiators or whatnot, I don't know. Just to reiterate, I would like the best cooling performance but the quietest operation on a low budget (<$50 AUD) and I live in Australia. I can buy new fans as well those are just 2 deals I thought were worth considering. Any more information please ask. Thanks a lot.
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My Rig
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BenQ XL2420T Coolermaster Quickfire Pro Cherry Blue Mechanic... Antec HCG 520W Modular Power Supply Fractal Design Define XL R2 Black Pearl 
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post #2 of 5
Choosing fans is a very personal choice. Every fan has certain noise characteristics. Every person has different noise tolerances. Reading reviews doesn't help much because what some people will call silent, others say is too loud. If you're after silence, anything that runs at <1200rpm is generally near ambient noise levels. Most fans are very similar in terms of noise vs performance at or below 1000rpm. I recommend if you are getting fans that will be placed horizontally, with the air flowing up or down, avoid a sleeve bearing fan, as it will run dry and wear out prematurely. Hydro-Dynamic bearings and 2 ball bearings are usually found in quality fans. My suggestion is to check out this site and listen to the fans.

http://martinsliquidlab.org/category/fans/

I hope this will be helpful.
post #3 of 5
The Noctuas will be quieter and are great fans. I'd get them over the Corsair fans any day.

If you want something cheaper at 120mm, the Gelid Silent 12 (and PWM version) are good fans. You could also look at the Alphacool eLoop, Gentle Typhoon, or Gelid Wing. I'd listen to videos of the Gentle Typhoons first though. I can't own them since they get this weird harmonic resonance I hear that drives me insane.

At 140mm, I'd go for the Noctuas over the Corsair fans.
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post #4 of 5
Noctua fans have a 6 year warranty and Noctua is one of the best at customer support. They make very good products but are expensive.

I'm seeing more and more PWM radiators fans.. makes sense as automatic speed control.is easier.

My suggestion is PWM fans with PWM splitter having PSU power connection. Power from PSU, control from motherboard CPU fan header. Case fans run same speed as CPU fan. Idle 700-800rpm and full speed 1000-1300rpm.

I'm running the original Define R2 modified with bottom and back vent grills removed and 140mm fans in front (my sig rig). Idle is 24-28c@750rpm and 100% load all 6 cores is 44-49c@950-1050rpm.

Most fans are near silent below 900-1000rpm

It's what I do on everything now... and many here and other forums have done it too. Not a single complaint yet. biggrin.gif

Links to websites you buy from would be helpful. Make it easier to see what fans you are able to buy down there. wink.gif
post #5 of 5
I have just bought a NH-U12S cpu cooler which uses NF- F12 120mm. and they're like ninjas! I can't hear them.
The color actually makes them unique, all fans are black. once you see a brown/tan colored fan, you'll definitely know it's a Noctua and the owner cares for his computer. They're colored like that because of it's an owl color.

if you can't get past that, simply get Corsair SP120 high performance. the corsair sp120 quiet ones are not par with Noctua's performance.
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Rievhardt Vulcan
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