Radiator/case fans airflow (need advice)

HelpChris · Jul 29, 2017

Hoping someone can help me with my PC's airflow.

A couple moths ago i built my first PC and i feel i did a pretty bad job with my airflow configuration and I have no idea where to start..
I'm wondering what the best possible airflow would be with my case's limitations (only 2 out of the box case fans and 2 radiator fans)

My current fan configuration: both my case fans - one at the top of my case and one at the back of my case are both cool air intake, then both my radiator fans are exhausting through the radiator out the front of the case.
Also i'm wondering if I should replace the fans that came with my case with better ones.

Specs:
Case - NZXT S340
Cooler - Corsair H105
PSU: 750W
CPU - i7 7700K
GPU - GTX 1070
Motherboard - Msi Z270 gaming pro carbon
Ram - 16 gb (2 x 8) 3200 mhz
Storage - 250gb SSD & 2TB HDD

Picture - http://imgur.com/a/CIAcZ

Thanks,
Chris.

Seanie280672 · Jul 29, 2017

HelpChris :

You have them the wrong way around, hot air rises, so you want the ones at the front bringing air into the case, in push config, and the one at the top and the back exhausting hot air out.

I wouldnt bother changing the 2 fans that came with the case, NZXT supply decent enough fans to cope with the exhaust, its not like they need to be radiator fans.

You could always buy another 2 fans for the radiator and put them on the other side, making it a push / pull config to help out a little.

Deniedstingray · Jul 29, 2017

simply put

Front Two, pushing air into the case.

Back and top, Exhausting air out of the case.

HelpChris · Jul 29, 2017

Seanie280672 :

HelpChris :

You have them the wrong way around, hot air rises, so you want the ones at the front bringing air into the case, in push config, and the one at the top and the back exhausting hot air out.

I wouldnt bother changing the 2 fans that came with the case, NZXT supply decent enough fans to cope with the exhaust, its not like they need to be radiator fans.

You could always buy another 2 fans for the radiator and put them on the other side, making it a push / pull config to help out a little.

Much appreciated, am i correct by saying i need to put the fans on the other side of the radiator? pushing the cold air through the radiator into the case?
thanks.

Seanie280672 · Jul 29, 2017

HelpChris :

Seanie280672 :

Much appreciated, am i correct by saying i need to put the fans on the other side of the radiator? pushing the cold air through the radiator into the case?
thanks.

Yes that would be the best way to do it, push is always better than pull, then you can later add 2 more fans to the back of the radiator if you like, you appear to have the room to do this, to make it a push/pull config, if you decide to go this route, get the same fans as the ones you'll have on the front of the radiator.

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Radiator/case fans airflow (need advice)

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