[SOLVED] Dual fan cpu cooler intake or exhaust?

Oct 16, 2020
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My airflow look like this. So my question should I change the CPU fan airflow to both left/right or should I just let it be?
 

Karadjgne

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Yipes, change it. There Is No airflow in the cpu cooler if your arrows are correct. You have one fan pulling against the other. You'll move a small amount of air that's sucjed in from the top/bottom but it's not very effective. The same goes for having fans facing each other, push vs push = nothing moves.

Fans have 2 sides, a pretty side and an ugly side. The pretty side is where you look at the blades, any rgb, etc. The ugly side is where you see the back of the motor, the wiring, label, struts. Air is pulled in pretty and shoved out ugly.

So for a dual fan cpu cooler, you should have the pretty side facing the front of the case, on the right you'll see the pretty face, on the left you see ugly. This puts direction of flow from nice cool air by the case front directly through the cooler and shoved at the rear exhaust.

Every fan is the same, it's not Where they are mounted, it's How they are mounted. Pretty side always faces front/down. This moves air from low/front to high/rear. Top exhaust fans are the same, pretty faces down, so air is moved up.
 

BradHP

Distinguished
Oct 17, 2011
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Front fan on your CPU cooler should be blowing through the heatsink towards the back of your PC. If it's blowing towards the front then you're shooting hot air at the cold air that's coming in from your front intake, which is then blowing it right back at the CPU, maybe slightly cooler than it was.
 

Karadjgne

Titan
Ambassador
Yipes, change it. There Is No airflow in the cpu cooler if your arrows are correct. You have one fan pulling against the other. You'll move a small amount of air that's sucjed in from the top/bottom but it's not very effective. The same goes for having fans facing each other, push vs push = nothing moves.

Fans have 2 sides, a pretty side and an ugly side. The pretty side is where you look at the blades, any rgb, etc. The ugly side is where you see the back of the motor, the wiring, label, struts. Air is pulled in pretty and shoved out ugly.

So for a dual fan cpu cooler, you should have the pretty side facing the front of the case, on the right you'll see the pretty face, on the left you see ugly. This puts direction of flow from nice cool air by the case front directly through the cooler and shoved at the rear exhaust.

Every fan is the same, it's not Where they are mounted, it's How they are mounted. Pretty side always faces front/down. This moves air from low/front to high/rear. Top exhaust fans are the same, pretty faces down, so air is moved up.
 
Oct 16, 2020
15
0
10
0
Yipes, change it. There Is No airflow in the cpu cooler if your arrows are correct. You have one fan pulling against the other. You'll move a small amount of air that's sucjed in from the top/bottom but it's not very effective. The same goes for having fans facing each other, push vs push = nothing moves.

Fans have 2 sides, a pretty side and an ugly side. The pretty side is where you look at the blades, any rgb, etc. The ugly side is where you see the back of the motor, the wiring, label, struts. Air is pulled in pretty and shoved out ugly.

So for a dual fan cpu cooler, you should have the pretty side facing the front of the case, on the right you'll see the pretty face, on the left you see ugly. This puts direction of flow from nice cool air by the case front directly through the cooler and shoved at the rear exhaust.

Every fan is the same, it's not Where they are mounted, it's How they are mounted. Pretty side always faces front/down. This moves air from low/front to high/rear. Top exhaust fans are the same, pretty faces down, so air is moved up.
They should look like this if im correct?
 

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