best way to put fans for cpu cooling

[shillien]

hello,

so i finaly ordered my build it should be here by monday and i have most of the things figured out (newbie builder here) but i dont know the best way to put fans on cpu cooler, i checked tons of youtube videos and most of them are for rads for liquid cooling so i didnt find the answer i am looking for.

now i have corsair 750d airflow edition case so i have 2x intake fans in front and 1x output fan on the back, im wondering if the way i imagine (on the picture) is the best way to put fans or is there other better way?

https://imgur.com/a/URsTP

ty in advance
picture is not mine i took it from this forum because it describes my interior nicely i just added airflow arrows

 

[Eximo]

Yes that is the typically correct way. You want the fans all going in the same direction, like in the picture you linked to.

There are situations where a non-standard flow might be worthwhile. For instance, my rear fan is used as an intake. My goal there is to get fresh air into a top mounted radiator. And I have another radiator in the front as intake. I tested both and this worked better for temperatures.

I believe this also creates a positive pressure situation, which should prevent dust build up in small openings in the case. I want the dust concentrated on the filtered intakes. If you have too much exhaust then the air has to flow in from somewhere, usually where a fan is not. The linked picture is more a neutral pressure build. In and out at roughly the same amount, I might recommend another fan at the front for intake, but not necessarily.

More rarely, and usually in very small form factor cases, a complete reverse flow is desirable. Rear intake and front exhaust. Or in cramped circumstances where you don't want to recycle already warm air this is also useful.

 

[shillien]

Yes that is the typically correct way. You want the fans all going in the same direction, like in the picture you linked to.

There are situations where a non-standard flow might be worthwhile. For instance, my rear fan is used as an intake. My goal there is to get fresh air into a top mounted radiator. And I have another radiator in the front as intake. I tested both and this worked better for temperatures.

I believe this also creates a positive pressure situation, which should prevent dust build up in small openings in the case. I want the dust concentrated on the filtered intakes. If you have too much exhaust then the air has to flow in from somewhere, usually where a fan is not. The linked picture is more a neutral pressure build. In and out at roughly the same amount, I might recommend another fan at the front for intake, but not necessarily.

More rarely, and usually in very small form factor cases, a complete reverse flow is desirable. Rear intake and front exhaust. Or in cramped circumstances where you don't want to recycle already warm air this is also useful.

tyvm