Quiet and good air flow?

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Shain Taylor

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Mar 21, 2013
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I have a dilemma. In my PC I currently have a front 230mm fan installed (however not much airflow get's through the HDD's, never mind the top of the case), a bottom 120mm (again, low air flow) and a rear 140mm. Because I have a Hyper 212 Evo in a push pull configuration, my intake doesn't provide enough airflow to the top of the case (I have an aerocool xpredator) I want to refrain from using the side panel for fans because it makes a horrid high pitched noise due to the cut outs. Plus I have them covered up. So air is being drawn in from places like the 5.25' bays, and is creating a lot of dust.

Here's my question - I was going to place a filtered 140mm intake, on the top right side of my case, to blow air directly inline of the Hyper 212 intake and a low air flow 120mm on the far left side, just to get a bit of airflow over my VRM's. I have two questions actually. Is the right intake a good idea, and for the far left fan be intake/outtake... I want a good airflow to create minimal dust and a bearable noise...

Thankyou for reading

P.S I can cover the Top of the case when I'm not using the PC, so dust wont settle on top of the case when I'm not using it.
 
Solution
clutchc
Fan positioning is totally up to you. The main thing is to have sufficient air flow throughout the case. But if the only heat issue is the gfx card, it may need to have its thermal paste cleaned off and replaced. If the card is still new, maybe adding a quiet side fan to augment the air it draws in would help.
If dust is an issue, filtering the used and unused openings is the only answer.

One other thought; if your CPU cooler has a push-pull fan setup and is exhausting to the rear of the case, the rear fan may be more useful mounted elsewhere. In most of the cases I've built with, the rear fan is usually so close to the exhaust side of the CPU cooler that I never needed a 'pull' fan on the cooler. The rear fan served that purpose.
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Shain Taylor

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Mar 21, 2013
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I'm not having high temps as such, my GPU is running quite hot, that's why I installed the bottom 120mm fan. But my problem is that I have no airflow in the top portion of my case, and that it's completely negative pressure, it brings in a lot of dust.. so I wanted to get some air flow and neutralize it or make it positive by installing the top fans
 
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clutchc

clutchc

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Fan positioning is totally up to you. The main thing is to have sufficient air flow throughout the case. But if the only heat issue is the gfx card, it may need to have its thermal paste cleaned off and replaced. If the card is still new, maybe adding a quiet side fan to augment the air it draws in would help.
If dust is an issue, filtering the used and unused openings is the only answer.

One other thought; if your CPU cooler has a push-pull fan setup and is exhausting to the rear of the case, the rear fan may be more useful mounted elsewhere. In most of the cases I've built with, the rear fan is usually so close to the exhaust side of the CPU cooler that I never needed a 'pull' fan on the cooler. The rear fan served that purpose.
 
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Solution
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Shain Taylor

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Mar 21, 2013
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I have tried adding a side fan, it was just noisy and increased temperatures... I also added one intake top right, that increased temperatures too.. so instead I added a low RPM out take top left and it has reduced my socket temp, therefore reducing my CPU temp... and there is a 10cm gap between my pull fan and rear fan.. the Xpredator is a massive case...
 
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mickypheonix

mickypheonix

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Mar 9, 2014
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Hi shain Taylor,
I would replace those fans with higher CFM fans for positive airflow
for the 230 i would use a bitfenix spectre pro 230mm with 156cfm 25.6 DBA and choice of led color
http://www.pccasegear.com/index.php?main_page=product_info&products_id=19235&cPath=601
for the 140 intake i would use bitfenix spectre pro 140mm with 86cfm 22.8 DBA
http://www.pccasegear.com/index.php?main_page=product_info&cPath=9_598&products_id=19108
and the 120mm i would go for Cougar CF-D12HB 120mm Black Hydraulic Bearing Fan
with 64cfm 17DBA
positive air pressure is what you need , less dust more air
i would use the side panel aswell but i would use a slow rpm fan with rubber mounts such as these
http://www.pccasegear.com/index.php?main_page=product_info&cPath=9_510&products_id=26802
and super quiet
and yes by all means cover the top of your case when not in use

 
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