How to setup Fans and Radiators in 750D water-cooling build

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Bounti

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Jun 1, 2013
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Hello everyone, I have a few questions regarding the setup of fans and rads in my setup. I'm planning on mounting a 360mm rad up top with three 120mm fans and a 280mm rad in the front with two 140mm fans.

My question is how to place my fans to cool the radiators and maintain positive pressure and use PULL in order to make my build less prone to dust.

Up top I could have:

Case -> Fans pulling in air from outside -> radiator
or
Case -> Radiator -> Fans pulling air through radiator

I'm confused as to which setup would work best? I'm guessing the fans pulling through radiator might although I am not sure. I would prefer for the fans to be hidden, so option 1 wins in that regard.

In the front it would be the same deal. Either fans pulling from outside and into the radiator OR fans pulling through radiator.

Any feedback on these methods will be greatly appreciated!
 
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Hard Line
If your issue is the colors, they make fans with only black ( only the pads for vibration reduction are orange ) and honestly dont really notice them. ( i have these ) notctua is about the same and noctual lacks the static pressure which matters when using a radiator. you should be fine with the exhaust as long as you have a good airflow fan. my entire rig consists of cougars.. on the rads and on the chassis. I do not have experience with those fans but I do know that static pressure is nowhere near ap-15 and cougar. noctua static pressure is not as good either. I would say 3-5C difference depending on the heat load and ambients. Thanks for the kudos on the review!
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Hard Line

Hard Line

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have the front push into the case through the radiator, and the top should push over the radiator inside the case and then you should have rear exhaust.

Now we need some info.. what case are you using? what fans are you using? and what hardware are you cooling?

 
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Bounti

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I'm looking to have positive pressure and use a pull configuration all around the case for easy dust removal and for better use with slower fans. I'm building in a corsair 750D using an XT45 rad up top and a UT60 in the front. For fans, I'll either have noise blocker pro 140mm fans or Noctua nf a14 fans in the front. Up top, either Noctua nf f12s or some other fan that can do pull (I just learned noise blocker e loops have issues).
 
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Hard Line

Hard Line

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I would like to recommend cougar vortex fans.. they are comparable to the GT ap-15 without the high price and motor whine. when using water to cool components, you don't need to worry about using positive over negative except for dust in which case you only need slight positive... however, the suggestion i had gives you much positive pressure. Are you cooling your gpu with water as well? if not, then too much positive pressure will cause it to run warmer.

Here is the link to my review of the cougar fans when used on a radiator: http://www.tomshardware.com/forum/id-1703147/cougar-v12hpb-120mm-fan-review.html#10989456
 
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Bounti

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Jun 1, 2013
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I'm not a fan of the Cougar vortex fan designs, I've also heard that Noctua best them in quietness of operation. Yeah I'm cooling the gpu, so bringing in air with the 3x120s up top and the front 2x140s will give me positive pressure. I'm a little worried if the 140mm exhaust would be enough? Do you have any experience with Noiseblocker, BeQuiet, or Phantek fans? I'm looking at these two fans as my alternatives to using Noctua, but I really don't want to sacrifice Noctua's low noise performance. Nice review btw, they're by no means bad fans, just not as good as Noctua when it comes to noise. The slight orange touch also bothers me haha, thanks!
 
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Hard Line

Hard Line

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Apr 15, 2008
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If your issue is the colors, they make fans with only black ( only the pads for vibration reduction are orange ) and honestly dont really notice them. ( i have these ) notctua is about the same and noctual lacks the static pressure which matters when using a radiator. you should be fine with the exhaust as long as you have a good airflow fan. my entire rig consists of cougars.. on the rads and on the chassis. I do not have experience with those fans but I do know that static pressure is nowhere near ap-15 and cougar. noctua static pressure is not as good either. I would say 3-5C difference depending on the heat load and ambients. Thanks for the kudos on the review!
 
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