Question NZXT H7 Flow fan help

Jun 22, 2023
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I will be doing a PC build next month. The last time I built my comp was 10 years ago and there were no heating problems back then compared to now.

Current PC i7-4790K @ 4 Ghz. GTX 650 Ti Boost. Samsung 940 SSD.

Will upgrade to 7800x3d. Gigabyte Gaming OC RTX 4070 Ti. Samsung 990 Pro. Phantom Spirit cooler. I know the improvement will be mind blowing.
Not looking for advice on changing any of the components.

From what I have read you want positive airflow but keep it as close to neutral as possible. Will not be using AIO.

The H7 Flow supports ...
Top 3 120 or 2 140
Front 3 140 or 3 120
Rear 1 120 or 140

The new mobo has 5 PWM headers so I hope I will not need more than 5 fans.
I will be using Noctua NF-A14 chromax.Black.swap fans and removing the 2 NZXT stock fans.

How about 2 140 in front and one 140 in rear for exhaust. One Noctua NF-A12x25 exhaust at top.
This should give me only a small positive airflow. The question is will this be sufficient, insufficient or overkill?
It is true I may need to make adjustments but for now I'm looking for input for a good starting point.
 
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Jun 22, 2023
24
3
15
I forgot to take into account my front fans will use a dust filter. For lowest noise, least restriction and most filtration the filter should be at least 1" from the fan, preferably a few inches, with a moderate mesh size. Now I must learn how to create distance between fan and filter.

It seems I can get my fan spacers from
Etsy
 
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Air cooling should be good.
I think the more air you can get in, the more air you can exhaust carrying component heat from the cpu and gpu with it.
I would try 3 140mm fans as intake in front.
140mm fans move more air quietly than 120mm.
Whatever comes in the front will exit somewhere.
A single 140mm rear exhaust fan will direct the airflow over the components you want to cool.
Adding a top exhaust tends to divert the airflow up and out before it can do any good.

Fans are easy to change around if you want to experiment.