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post #931 of 976
And I'm ready for some testing ! biggrin.gif
Warning: Spoiler! (Click to show)





Testing done and....The winner for me is Noctua, hands down.

Tested using myself and girlfriend as test subjects.
Had a look at aesthetics, noise in free air....noise on rad pull... noise on rad push.. feel the "wind" with the palm... done the paper test (at different distances away) and voted our conclusions.

At the moment I have a Noctua NH-D14 Fan cooler in my PC so took that as noise reference.

Hands down for Noctua cause they definitely impressed me, not only that it pushes considerably more air than the others but the fact that in my tests it has beaten the others at lower speeds and noise level ( 1900RPM noctua moves the paper a bit more at 30 cm thru radiator than Corsair CO-9050041-WW ML120 PRO at 2450RPM )
The Noctua I had in hand manages to be very quiet up until 1600 RPM (and much pleasant noise at full RPM than the others, but this is a matter of taste) and...as MIN RPM its the best from all of them as well... managing to go at 284 RPM's at 18% (No problem with start-stop at this rpm)

Proof Noctua 284 RPM (Click to show)

Edited by becks - 3/16/17 at 5:25am
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post #932 of 976
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by doyll View Post

Probably between fan and radiator. Will stop air leaking out instead of going through radiator and will increase distance from fan to radiator .. which often lowers noise level. wink.gif


Case Bottom Spacing Effect on Airflow to Bottom Fans


Be creative when looking for spacers .. bottle caps, arisol paint can caps, hockey pucks, little brother's building blocks, etc. will all work.


Grill & Filter Effect on Airflow & Noise level



http://www.silverstonetek.com/techtalk_cont.php?area=en&tid=wh_chessis
Scroll down to see how air flows through round wire grill versus punched metal grill.


https://www.pugetsystems.com/labs/articles/Effects-of-Grill-Patterns-on-Fan-Performance-Noise-107/

Here is a drawing of basic grill mesh designs showing what their open area / airflow area is. Notice hexagonal / honeycomb patterns have much more open area for air to flow through.
+rep thumb.gif

I have done this mod quite a long time ago to my Thermaltake Tsunami case, which was notorious for noise. Anyhow, I didn´t dare to butcher the Fractal R4 until yesterday, finally got fed up of occasional humming noise from side fan and quite loud noise from bottom intake. So bought a dremel and most probably pissed off all my neighbors on Sunday, dremelling away rear, side and both bottom fan grills. Result looks quite badass, there is no humming/whirling noise anymore. The airflow increased also quite a lot as well, previously it was barely noticeable with hand at same low noise RPM.
Phone shot of the result:
Edited by kivikas14 - 4/3/17 at 10:44am
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post #933 of 976
Thread Starter 
Quote:
Originally Posted by kivikas14 View Post

Warning: Spoiler! (Click to show)
+rep thumb.gif

I have done this mod quite a long time ago to my Thermaltake Tsunami case, which was notorious for noise. Anyhow, I didn´t dare to butcher the Fractal R4 until yesterday, finally got fed up of occasional humming noise from side fan and quite loud noise from bottom intake. So bought a dremel and most probably pissed off all my neighbors on Sunday, dremelling away rear, side and both bottom fan grills. Result looks quite badass, there is no humming/whirling noise anymore. The airflow increased also quite a lot as well, previously it was barely noticeable with hand at same low noise RPM.
Phone shot of the result:
Thanks for your post! thumb.gif
Always good to hear others results to my findings. It really is amazing how much even a simple punched metal grill increases noise and lowers airflow. Many people don't believe me and others even though the facts support how much better cooling and quieter a case is with vents removed. I always leave the filters on intakes to keep dust out.
post #934 of 976
How would a 90 degree turn have an affect on a fans CPM? My case (In win 509) draws air in from the side of the front and I've been thinking about how that could decrease the performance of the fans compared to a case like the Corsair 750D airflow edition where it's straight on air through a mesh. On the right you can see the openings where the air is mainly allowed in through.
post #935 of 976
Thread Starter 
Quote:
Originally Posted by Lobuttomize View Post

How would a 90 degree turn have an affect on a fans CPM? My case (In win 509) draws air in from the side of the front and I've been thinking about how that could decrease the performance of the fans compared to a case like the Corsair 750D airflow edition where it's straight on air through a mesh. On the right you can see the openings where the air is mainly allowed in through.
I'm confused. the pictured case has H2O cooling and your sig show a Mugen 5. confused.gif
I have never used and In Win case, but from looking at them they seem to have rather power airflow design and while they work okay and look great, their airflow looks rather poor, especially for air cooling. I might be wrong, and the way to figure it all out is monitor case airflow temps into CPU and GPU cooler with different fan configurations. If you haven't already read the 5th post in this thread, it is about case airflow and how to set it up. The guide is for more conventional front to back or front/bottom to back/top vented cases, so keep that in mind when applying the principles to your In Win case.
post #936 of 976
- I have mounted Fractal design GP-14 on the bottom of Define R5. Will it last without problems (noise, durabilty) considering it is a hydraulic bearing? Would it be better to place Noctua (SSO bearing) on that position?

- If I connect my Noctua redux 12cm (700rpm) to a define R5 fan controller it will be operational only on 12V?
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post #937 of 976
Thread Starter 
Quote:
Originally Posted by SteelBox View Post

- I have mounted Fractal design GP-14 on the bottom of Define R5. Will it last without problems (noise, durabilty) considering it is a hydraulic bearing? Would it be better to place Noctua (SSO bearing) on that position?

- If I connect my Noctua redux 12cm (700rpm) to a define R5 fan controller it will be operational only on 12V?
You should be fine with the fans mounted horizontal.

I think the R5 built in fan controller is voltage control, so it has 3 voltage settings with fastest being 12v.
post #938 of 976
Quote:
Originally Posted by doyll View Post

You should be fine with the fans mounted horizontal.

I think the R5 built in fan controller is voltage control, so it has 3 voltage settings with fastest being 12v.

That's correct for the R5 fan controller. Fractal Design uses the same controller in many cases.

Note that in 5V mode, some fans won't start at the voltage, this is easily remedied by putting the fan controller to 12v and putting it back to 5v.
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post #939 of 976
Quote:
Originally Posted by doyll View Post

I'm confused. the pictured case has H2O cooling and your sig show a Mugen 5. confused.gif
I have never used and In Win case, but from looking at them they seem to have rather power airflow design and while they work okay and look great, their airflow looks rather poor, especially for air cooling. I might be wrong, and the way to figure it all out is monitor case airflow temps into CPU and GPU cooler with different fan configurations. If you haven't already read the 5th post in this thread, it is about case airflow and how to set it up. The guide is for more conventional front to back or front/bottom to back/top vented cases, so keep that in mind when applying the principles to your In Win case.
It's just a picture from google to show the way air is allowed in through the front.
post #940 of 976
Quote:
Originally Posted by doyll View Post

You should be fine with the fans mounted horizontal.

I think the R5 built in fan controller is voltage control, so it has 3 voltage settings with fastest being 12v.

Quote:
Originally Posted by Duality92 View Post

That's correct for the R5 fan controller. Fractal Design uses the same controller in many cases.

Note that in 5V mode, some fans won't start at the voltage, this is easily remedied by putting the fan controller to 12v and putting it back to 5v.

I read that these FD fans after some time in horizontal mode are know to develop noise problem. So it is OK?

Problem with Nocuta is that I have some other fans connectod to fan controller, I will need to find some other solution.

Also I need for my Define R5 some large fan filter on top but I cannot find any affordable (I know it has on Demcifilter but they are very expensive). I was thinking of cutting something like this but I don`t know will hole on net be to large.
Edited by SteelBox - 4/12/17 at 10:02am
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