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Corsair H80 and Noctua NF-S12B ULN 120mm fans?

post #1 of 7
Thread Starter 
Hey everyone,

Recently for Black Friday I got a H80 at a magnificent price smile.gif and I am very satisfied, now I know there are other coolers that might be cheaper and does my performance than the H80.. That's not my problem here tongue.gif.

Along with that, I got 2 Noctua NF-S12B ULN fans from NCIX, a bundle of 2 for $20, which I thought it was a pretty sweet deal considering that regularly one fan costs around $25.

I initially planned to use those 2 Fans to replace the H80 stock fan(s) since I heard they are quite loud.

Now I am aware that most of Noctua made fans are silent, but with silence comes with low air flow? I'm wondering if specifically the Noctua NF-S12B ULN Fans could be used as CPU fans for my radiator on the H80.


[ I read some review saying that this fan CANNOT be used as CPU fans, but rather a case fan... So I'm asking for.. compatibility and even if I install it.. would my temperatures be hot and I can not overclock because of the lack of airflow?

I do not wish to use it as case fans because I already have a 200mm fan on my Storm Enforcer.. and I have nowhere else to mount the fans...and I want a quiet CPU cooler xD

Sorry If I sound like a total idiot.. This is my first step into water-cooling... and I'm completely stuck here.


(I could not choose any other Noctua Fans, because those were the only one on sale, so I had no other choice.)
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post #2 of 7
Those fans should work well. @ 1200rpm (the highest speed) you are getting 59.3 CFM which is freaking awesome. And from the reviews I read and watched, it's quite silent compared to other fans of the same size. Only around 18 dB(A) I think.

The only problem I think you would run across is case spacing to your CPU area for running a push/pull configuration. I hope you post temps after trying them out smile.gif
    
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by ceteris View Post

Those fans should work well. @ 1200rpm (the highest speed) you are getting 59.3 CFM which is freaking awesome. And from the reviews I read and watched, it's quite silent compared to other fans of the same size. Only around 18 dB(A) I think.
The only problem I think you would run across is case spacing to your CPU area for running a push/pull configuration. I hope you post temps after trying them out smile.gif

Thank you so much for the information.... And I got a question mind if you can help me out? I honestly don't know what a push/pull configuration is... (I know I sound so stupid right now LOOL) and which one should be push and which one should be pull.. I tried to pull this off on my Hyper 212+ but I never saw the difference in temperatures..

and Does anyone know if the H80 includes FAN RACKETS (or some sort) so I can mount the fans? Or do they use screws?
Or if the Noctua includes fan mounts for CPU coolers..
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post #4 of 7
You can use any fan as whatever you want as long as it fits. But what you should keep an eye on is static pressure when choosing a rad fan. You might have all the CFM you want, but it is useless against a wall with lots of tiny holes. Most of the air will go to waste.

I'd say, compare temps with Prime95 or something like that. If temps stay the same or go ~5c hotter with the new noctua fans than with the stock and you're happy with the sound, by all ways go with them. Noctuas are hell of good fans, and they should be good enough.
Quote:
Originally Posted by Taiwanese View Post

Thank you so much for the information.... And I got a question mind if you can help me out? I honestly don't know what a push/pull configuration is... (I know I sound so stupid right now LOOL) and which one should be push and which one should be pull.. I tried to pull this off on my Hyper 212+ but I never saw the difference in temperatures..

and Does anyone know if the H80 includes FAN RACKETS (or some sort) so I can mount the fans? Or do they use screws?
Or if the Noctua includes fan mounts for CPU coolers..

For push pull al lthat matters is the fan orientation. Both fans must be pushing air to the same side (to find where does air go with fans off, all fans do hav some arrows somewhere on the outer edge stating where do fans spin ind where does air come out, look for them) and in opposite sides of the rad. Something like Fan > Rad > Fan.

H80 should've included screws to mount the original fans. YOu can reuse these to mount the new fans.
Edited by Starbomba - 11/29/11 at 7:32pm
   
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by Starbomba View Post

You can use any fan as whatever you want as long as it fits. But what you should keep an eye on is static pressure when choosing a rad fan. You might have all the CFM you want, but it is useless against a wall with lots of tiny holes. Most of the air will go to waste.
I'd say, compare temps with Prime95 or something like that. If temps stay the same or go ~5c hotter with the new noctua fans than with the stock and you're happy with the sound, by all ways go with them. Noctuas are hell of good fans, and they should be good enough.
For push pull al lthat matters is the fan orientation. Both fans must be pushing air to the same side (to find where does air go with fans off, all fans do hav some arrows somewhere on the outer edge stating where do fans spin ind where does air come out, look for them) and in opposite sides of the rad. Something like Fan > Rad > Fan.
H80 should've included screws to mount the original fans. YOu can reuse these to mount the new fans.

Ah ok, Thanks for the info! So would it be like this?
(Hopefully my "illustration" would be understandable)


BACK OF THE CASE [[ <------ ( FAN 1) <------[radiator] <------ ( FAN 2 ) ]] (MOTHERBOARD)


Arrows indicate airflow from the fans.


OR

is it...

BACK OF THE CASE [[ --------> (Fan 1) -------> [Radiator] <------- (FAN 2) ]] (MOTHERBOARD)
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post #6 of 7
Quote:
Originally Posted by Taiwanese View Post

Ah ok, Thanks for the info! So would it be like this?
(Hopefully my "illustration" would be understandable)
BACK OF THE CASE [[ <------ ( FAN 1) <------[radiator] <------ ( FAN 2 ) ]] (MOTHERBOARD)
Arrows indicate airflow from the fans.
OR
is it...
BACK OF THE CASE [[ --------> (Fan 1) -------> [Radiator] <------- (FAN 2) ]] (MOTHERBOARD)

You can actually mount anyway you want, but that's pretty much the idea behind push-pull. Some suggest mounting it to get fresh air from outside then venting it out somewhere else (like a top fan in exhaust mode) to get cooler temps, but that's almost unnoticeable in most cases. On my H70 i've tried both ways, and getting "cold" air from the outside only lowered temps by 3c over grabbing "hot" air from inside my case and venting it out.
   
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post #7 of 7
Fans all go one direction, but you want to pull the coolest air in so it would look like this:

Rear of Case -> (FAN) -> [RADIATOR] -> (FAN)

It may seem a bit odd since general air cooling pushes air out the back, but you are now working with a radiator. Alternatively, you can place the radiator and fans on the top exhaust vents if your case has it. But then the direction of the fans would blow down into the case instead of up.
    
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