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Fan airflow

MarcelWIMP

So I bought a case with two 120mm front fans and also bought a separate 140mm to put in the case so it facing upwards but I'm confused whether the 2 120mm are going to be blowing in or out and whether my 140 should also blow in or out

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I would have the two 120mm in the front blowing in (intake) and the 140mm in the top back blowing out (outtake)

I am far from an expert in this so please correct me if I’m wrong.

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just about every PC fan (that I know of at least) sucks in from the "front" and blows out the "back", like this

image.png.ebeed39a0eb50e5a35d19fa391ff995d.png

if the 2 120mm fans are intake, you should probably have the 140mm as exhaust towards the back.

Specs: CPU: AMD Ryzen R7 3700X @4.4Ghz, GPU: Gigabyte RX 5700 XT, RAM: 32 GB (2x 8GB Trident Z Royal + 2x 8GB TForce Vulkan Z) @3000Mhz, Motherboard: ASRock B550m Steel Legend, Storage: 1x WD Black 1Tb NVMe (boot) + 1x Samsung 860 QVO 1Tb SSD (storage), Case: Thermaltake Core V21, Cooler: Noctua NH-D15

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4 minutes ago, Adorable Cat said:

just about every PC fan (that I know of at least) sucks in from the "front" and blows out the "back", like this

To add to this, most fans have arrows showing the direction the air goes.

I am far from an expert in this so please correct me if I’m wrong.

Quote or tag me so I can see your response

 

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