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How loud is too loud for fans? - Page 3

Poll Results: How fast is too fast for a 120mm fan?

 
  • 4% (10)
    Anything over 700 RPM is too loud.
  • 11% (27)
    Anything over 1000 RPM is too loud.
  • 28% (64)
    Anything over 1300 RPM is too loud.
  • 27% (62)
    Anything over 1700 RPM is too loud.
  • 18% (42)
    Anything over 2000 RPM is too loud.
  • 9% (21)
    Other - posted in the thread.
226 Total Votes  
post #21 of 78
i dont think anything is "TOO FAST". As long as it does the job needed im fine with it. I dont care about Db.
post #22 of 78
As a person who wants the best cooling-noise ratio - here's my recommendation for a baseline to measure against.
For Radiator Fans, a Gentle Typhoon Ap-14/15 against a rad, 1400RPM is perfect, and anything over 1850RMP is too much.
For a non-rad case fan, using the scythe SFLEX S-FDB 1200rpm is perfect and above 1600RPM is too much.
post #23 of 78
Noise levels are dependent on what your doing - if my PSU (which I assume this is about, unless Corsair are gonna produce fans too) makes any noise at idle then it annoys me. But if I need more power (either gaming, computation, etc) then I don't mind more noise.

Also I'm not sure what fans you've been testing, but I notice a MASSIVE difference between different fans at the same speeds, so speed is definitely not the only variable you should consider.
post #24 of 78
Depends on the noise.

For example.

AMD stock cooler makes a a sort of high pitched noise that punctures through my headphones.

My 6870 at 100% fanspeed is LOUD, but it makes a deep rumbling.

I can tolerate that.

Corsair, depends on the noise. on non bearing i'd say 1200rpm. my 1800rpm GT15s are near on silent. But my 1200RPM stock antec fans are terribly loud and don't push nearly as much air.

Imo you should also look at static pressure rather than RPM.

Also corsair if you make a full tower revision of the 800D, with a front 200mm fan and 200mm fan at the top, i'll buy it.

you can call it the 850D
Edited by SpeedNuggeT - 4/9/11 at 6:20am
post #25 of 78
This kind of stuff is way too subjective. There are lots of people here that think 1850rpm AP15's are loud, but I find them to be nearly silent.

Personally, I think over 2000rpm is the where 120mm fans start to get a little loud. Coolermaster R4's are around 2100-2200rpm and they're definitely audible from outside the room. Slowing them to ~1800rpm quiets them up significantly.

Noise is also heavily affected by airflow obstacles. A 2000rpm, 120mm fan in open air makes a gentle and easily tolerable whooosh noise. Put the same fan pulling through the slats on the side panel of the case and the noise becomes much higher pitched, louder, and thus very obnoxious.
Edited by AyeYo - 4/9/11 at 6:24am
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post #26 of 78
There is no way to answer that question unless you actually listen to the fan(s) in action and the conditions under which certain fans are used. I recommend to everyone to "listen" to Martin's fan review thread. Place your system volume between 25-50% (depending on sound cards and speaker system) and you should have a fairly good representation on how each fan sounds.

I have 6 Yate Loon High Speed's on my radiator. Most people say that's too loud. I find them to be perfect. Granted, they are not spinning at 100%. I have them on a duty cycle between 50-60% depending on CPU temp. That translates into maybe 1100-1500 rpm. I find this quiet as can be. I can hear them but to me it's quiet. My wife on the other hand said to me the other day that when I had them on 70% that that was very quiet. I couldn't stand them at 70% and therefore concluded she must be hard of hearing and that explains why she never listens to me. Now, I'd love to have 6 GT-15's on my radiator but two things prevent me from that... money ($16 avg. per fan vs. $3.60 per YL fan) and availability. They are simply not available right now.

You base the poll on RPM. That's hardly fair of a comparison for the poor little fans. Blade construction is a big factor in noise. Motor's and (maybe even more importantly) bearings used as well. Last but not least... fan size also makes a difference. Just as a side note... I have heard fans at 2000 rpm that are quiet as can be and I have owned fans that at 1600 are noisey buggers. A 120mm x 120mm x 20mm Yate loon medium speed fan makes more noise than a 120mm x 120mm x 25mm medium speed Yate Loon if I set them up to obtain the same rpm.
post #27 of 78
well a 60mm fan at lets say 60dbl is gonna be much more annoying than a 120mm fan at 60dbl thats for sure, Im usually only worried about the pitch of the hum/noise the fan makes... if its too "hair dryer" like its annoying, but if its like a big window fan its completely tollerable my take on it...
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post #28 of 78
I voted 1300rpm and up, although if there was an option for 1450rpm and up, then I'd choose that.
    
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post #29 of 78
Quote:
Originally Posted by Amann View Post
well a 60mm fan at lets say 60dbl is gonna be much more annoying than a 120mm fan at 60dbl thats for sure, Im usually only worried about the pitch of the hum/noise the fan makes... if its too "hair dryer" like its annoying, but if its like a big window fan its completely tollerable my take on it...
I agree with this guy. I don't mind hearing my fans as long as they are a nice soft sound. If the start sounding like a jet engine or start whining. then thats where the problem is
post #30 of 78
if corsair makes some nice rad fans and sells them seperate ill gladly buy them

i sleep 3 feet from my pc, if i have my R4s over 1450 rps at night, its too noisy, but during the day, -1560 ish rpms are tolerable (this is for the two fans on my rad, my case fans are all silent 1000rpm 200mms
Edited by PCSarge - 4/9/11 at 6:53am
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Orange Angel
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