Best and quietest fans at 140mm?

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902

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Jan 9, 2013
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Title says it really, i got space for 3 140mm intakes and 2 exhausts not really looking to use all but i could do with some extra airflow and i'm more of a fan of positive pressure, also i was wondering, does installing 2 intake fans on the side really disrupt airflow and all that mumbo. It seems silly but i'd like to double check and my gpu is getting around 85 degrees c on load vtx 7870 xt btw, i would have bought something better but at the price and after selling games it worked out at less than £90 (paid £185) and i kept 2 games.

Sorry for that paragraph :p

Anyhow my main question is, i need some affordable 140mm fans or 120, but bigger means less rpm for same performance right? and i'd like to keep it budget friendly.

Sorry if i forgot anything
Thanks :D

Right i forgot, My case is an aerocool xpredator x1 1 fan intake 1 exhaust
 
Solution
PapaCrazy
I've always gone with Noctua fans whenever I upgraded fans. They tend to have great quality bearings that resist squealing and rattling, and are very quiet. This is their 140mm PWM fan. At its lowest RPM, its 13.8db, and would be imperceptible at that rpm once inside the case. At highest rpm, its still only 19db and moves 67.9 CFM (the nocuta figures need to be converted from m3/h). Unless you have a fan controller, I would definitley make sure that whatever fans you get are 4 pin PWM fans so they can be regulated by motherboard.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608036

Edit: This site has a ton of info about building silent or quiet computers. http://www.silentpcreview.com/ If you want a quick number, I'd say...
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bigcyco1

bigcyco1

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Feb 11, 2012
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Scythe Kaze Maru 2 Slip Stream 140mm x 25mm Fan (120mm Mount) - 1200 RPM (SM1425SL12M)
http://www.frozencpu.com/products/10218/fan-662/Scythe_Kaze_Maru_2_Slip_Stream_140mm_x_25mm_Fan_120mm_Mount_-_1200_RPM_SM1425SL12M.html?tl=c15s775b14

Thermalright TR TY-140 140mm x 160mm PWM Fan - 900R~1300PM (Standard 120mm Fan Mount)
http://www.frozencpu.com/products/11677/fan-755/Thermalright_TR_TY-140_140mm_x_160mm_PWM_Fan_-_900R1300PM_Standard_120mm_Fan_Mount.html?tl=c365s1297b34


.
CHECK OUT RYANS REVIEW http://www.tomshardware.com/forum/331629-28-cooling-roundup-2012#3075441

 
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PapaCrazy

PapaCrazy

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Dec 28, 2011
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I've always gone with Noctua fans whenever I upgraded fans. They tend to have great quality bearings that resist squealing and rattling, and are very quiet. This is their 140mm PWM fan. At its lowest RPM, its 13.8db, and would be imperceptible at that rpm once inside the case. At highest rpm, its still only 19db and moves 67.9 CFM (the nocuta figures need to be converted from m3/h). Unless you have a fan controller, I would definitley make sure that whatever fans you get are 4 pin PWM fans so they can be regulated by motherboard.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608036

Edit: This site has a ton of info about building silent or quiet computers. http://www.silentpcreview.com/ If you want a quick number, I'd say keep it under 15db for a perceptually silent operation, and under 25db to maintain quiet operation. (ambient noise from freeways or streets can easily reach 30db, so you don't actually need to reach 0db for the computer to become imperceptible).
 
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Wookjin Jang

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our human can hear (i think) at least 24 decibels.. 21 decibels mean that it is hard to hear the noise..
EDIT: A man with normal hearing can just perceive 0 dB. The scale was in fact designed with this in mind.
At the other end of the scale is the "pain threshold" where sound starts to cause pain. For most people this in the region of 110dB - 120 dB.
There you go.. so 21 decibels is really hard to hear..
 
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raziel_5

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I have the Noctua NF-S12A ULN fan model and I can still hear the ball bearing moving sometimes. Max Rotational Speed (+/- 10%) w/o adaptor 800 with U.L.N.A. 600. Max Airflow (m3/h) w/o adaptor 74.3 with U.L.N.A. 57.5. Max Acoustical Noise dB (A) 8.6 with U.L.N.A. 6.7. Max Static Pressure (mm H2O) w/o adaptor 0.62 with U.L.N.A. 0.44. I was wondering if there is a truly silent version for a 120 and 140 mm fan that provides excellent Airflow and so I won't hear a ball bearing moving around? I have very sensitive ears.

Edit: The ULN Blue Labeled model with the Brown print on the box.
 
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NoizyBoyStatic

NoizyBoyStatic

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SteveDirickson

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In case anyone stumbles on this: the NF-S12A doesn't have ball bearings; like every other Noctua fan I've checked, it has SSO bearings. I'm not sure what this sound might be, but it isn't bearing noise. I'm not sure that Noctua even makes a fan with ball bearings for use in computers.
 
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N

Nhyrum

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Jun 20, 2015
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The decibel scale, like the richter scale is logrithmic. although the difference is the scaling. a 4.0 magnitude is 10x stronger than a 3.0, but 20 decibels isnt 10x as loud as 19 decibels, its 10x louder than 10 decibels. as the scale goes up, the difference increases(look up a graph of a base 10 logarithm) it isnt necissarily linear.

anyway, 21 decibels is still pretty quiet, but its 100 times louder than 1 decibel(which for most people into their mid/late 20's is inaudible depending on how much Van Halen they listen to) .30 decibels is 6 feet way from the wisper in a quiet library, so 21 is damn quiet

sorry to revive a dead/solved thread but i had to give my 2 cents
 
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