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CRYORIG Fan & Cooler Club; R1 Ult, R1 Uni, C1, H5, XF140 & XT140 and all things Cryorig - Page 185

post #1841 of 3718
Thread Starter 
Gotta love threads with discussions like this. thumb.gif We have reviewers, users, testers and Cryorig all here having a nice conversation. thumb.gif

My own testing puts R1, NH-D15, Silver Arrow IB-E and PH-TC14PE all in the lead in one test or another with each other.
One of these days I want to run all of them with something like the TY-143 and if I can get NF-A14 IPPC 3000rpm to see what they will do with jet engine type airflow. biggrin.gif
post #1842 of 3718
What about some 6000 RPM Delta's. Oh wait, that will tear the cooler of with a piece of the motherboard and give your CPU a fly around the room. biggrin.gif
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post #1843 of 3718
Let me contribute with the sound test as well smile.gif
https://www.youtube.com/watch?v=ZCUb9xghtMc

Even tho the sound meter registers higher noise on XF fans, to most of us they sound way better and less loud. But ofc human ear is completely different to a machine. smile.gif
post #1844 of 3718
@Kutalion,

I actually saw this video some time ago. I have to disagree with you on few points.

You have an open bench situation - you don't have a case. The case changes the acoustics of a fan. It can sometimes make a fan config. more bearable or sometimes it can cause resonance - which is pretty annoying sound even if it is quite low.

Those Noctua fans have very similar noise profile to the TY-147A fans. As doyll posted pictures before with them side to side - apart from the colors and the small ridges on the Noctua - you can't really tell them apart. Also, the TY-147As in my configuration sound similar, with the exception of the "pulsing" effect which I believe is maybe a microphone phenomenon.

I will copy-paste something from my previous post so you don't have to search for it.
Warning: Spoiler! (Click to show)
Now the TY when ramped up sounds a bit like the proper of an airplane. The XF however - reminds me of a hornet. The TY noise dies quicker with distance, while the low treble of the XF does survive distance and it is pretty hard to dampen by the case. To my ear - a single XF at 700 RPM is twice as loud as dual TY-147s at 800 RPM. Also, having 1 TY or 2 TY did impact noise rather little. While having 2 XF did substantially increase the noise over a single fan config.

This are my notes on the single fan config of the noise profile. I did the test at 3 AM when there is no almost no noise. I live in a place where cars and vehicles are not allowed in a perimeter of more than a 100 meters. So with the exception of a drunk student passing by - the noise level is amazingly low.

RPM TY-147 Noise
278 Quieter than system
490 Same as rest of the system
672 Barely audiable over system - airflow noise - 10 cm
806 Barely audiable over system - airflow noise - 30 cm
981 Medium aiflow noise and slight humming noise - 50cm
1244 Loud humming noise

RPM XF-140 Noise
755 Barely audiable airflow noise - 50 cm
1123 Medium-Loud turbulence noise - 50 cm
1285 Loud turbulence noise - 50 cm
1436 Even louder Louder

As I said before, the case does a pretty good job at "silencing" or better said - "absorbing" the noise. I got an old HAF 912+ done with proper steel. Not like the flimsy Corsair R300, T230, T600 and etc. bendy cases. It absorbs a ton of noise that is produced by the TYs. I can hear a very large difference if the TY is running in a closed case or out in the open.

The XF however, keeps its sound profile regardless of it being in a case or not with minimal loss. The turbulence noise combined with a the treble survives the case and distance very well. The XF fan noise is very similar at 30 cm, 50 cm and 1 meter. The TY noise dies rapidly after 30-50 cm.

Also you said "to most of us they sound way better and less loud", but I completely disagree. Humans are programmed to be more sensitive to trebling noises. Because we were supposed to run away from lions and tigers and wolfs and stuff. And when one of them roars - you get the adrenaline rush.

To me the XF sounds like a hornet. And the TY/Noctua - like an airplane propeller. One is certainly more unpleasant than the other. Heavy turbulent sound makes me restless.

But this is the personal part that you can't just measure on a dB(A) scale. Good work on the video, btw. Very nicely done and provides a very good illustration. Keep up the good work! thumb.gif
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post #1845 of 3718
While i do agree that cases change the sound by a lot, especially the high pitched noises often get reduced, i dont support testing in a case due to every case being specific and affecting the results differently. While our test case might dampen the sounds, consumers specific case might increase them.
post #1846 of 3718
Thread Starter 
It really is tough testing fan noise. You both are making valid points. I will only add that it takes some very good recording equipment to accurately reproduce a fan noise signature .. making it somewhat redundant.

We need a miniature fan noise signature sound system. Then we could record the fan and play it inside of whatever case we have to see how it sounds. biggrin.gif
Leave quickly before objects start flying.
post #1847 of 3718
@Kutalion,

I do not question your testing methodology at all. It actually is very solid. I just wanted to underline some practical circumstances that are very hard to quantify properly in a test environment, due to the infinite amount of configurations, but they are of a key importance to the practical application of a CPU cooler or fan testing.

As you said - thin flimsy cases can increase the noise. Corsair budget cases, budget Silverstone, budget Rosewill, Raidmax, MS-Tech, Apex, Chieftec, Apevia, Techsolo, Sentey and the list goes on and on. Even the Lian Li cases exhibit noise propagation. Aluminum, specially the thinner one, is very good at propagating sound as opposed to steel. Speaking purely on my own personal experience with Lian Li.
Edited by Shneiky - 11/7/15 at 9:16am
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post #1848 of 3718
I know, very hard to please every case owner biggrin.gif thus why i prefer testing on an open bench tbh.
At least as far as noise tests are concerned.

Also sound itself is quite problematic as not everyone has same hearing, is annoyed by same frequencies etc. I for instance dont mind growling loud ones, but high pitched noise from pumps make me wanna scream like an anime girl.
post #1849 of 3718
I definable agree with you. biggrin.gif One other main issue is ambient noise. I do not have super hearing - just very low ambient noise. If your ambient noise is 30 dB - then the XF could sound quiet as a fan can get. In my home - the ambient noise is under 19 dB at night. I tried a sound meter that I rented from an audio guy that works for film and TV - could not figure the actual ambient noise, since the sound meter has a threshold of 19 to 120 dB. So I am under what it could register.

This makes any PC component times and times louder than in a normal 25-30 dB environment.
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post #1850 of 3718
Thread Starter 
I prefer open bench for cooler testing too .. for the similar reasons. Coolers and their fans have differing airflow characteristics that change their cooler depending on what case and case fans are being used.

And I always monitor cooler intake & exhaust air temps .. in or out of case. At least that way I know the real air temperature the cooler is ingesting and can calculate a true delta CPU temp of cooler performance for comparisons.

The intake air to exhaust air temps give pretty good reference for air's ability to absorb heat. wink.gif
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