Question pc case help

daveheath999

Banned
Sep 7, 2025
7
1
6
Hi building my first pc and already got the nzxt h7 flow 2024 and was wondering what to do about fans, it comes with 3 120mm fans but they are 3 pin ones so thinking about replacing them, according to the specs i can have :

top 3x120mm or 2x140mm.
1 rear 120mm or 140mm.
3 front 120mm or 140mm.
3 bottom 120mm.

thinking 3 bottom 120mm,1 rear 140mm,3 front 140mm and 1 or 2 top 140mm.
any advice.
priority is quiet so will probably run them at low speeds.
don't want to spend a fortune.
will probably spend more on the 1 rear fan than the other fans individually.
 

In2Photos

Platinum Member
Mar 21, 2007
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2,754
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I would start with 3x140 front, 2x140 top and 1x140 rear. That should be enough for your setup and should give you neutral air flow if you run them all at the same speed or you can run the front a little faster for positive pressure. Should also be relatively quiet if not silent.
 

daveheath999

Banned
Sep 7, 2025
7
1
6
I would start with 3x140 front, 2x140 top and 1x140 rear. That should be enough for your setup and should give you neutral air flow if you run them all at the same speed or you can run the front a little faster for positive pressure. Should also be relatively quiet if not silent.
thanks for the reply have you got any recommendations for fans?