Advice on case fan flow direction

[MathewBoyd_]

Hello everyone,

 

I'm in the process of building my first PC (still waiting on parts), and I’ve been thinking about the best fan configuration for airflow.

In the first photo, I have two fans at the top set to exhaust air out of the case, and one fan on the right side pulling air in. I know the general rule is to have all top fans set as exhaust, but I was wondering if this (see photo) is a better configuration.

 

On the flip side, I'm also worried that having one intake fan next to exhaust fans might cause the intake to pull in the hot air that's being expelled, leading to re circulation. To help with that, I spaced the fans out a tiny bit (I don't think it will do anything lol but can't hurt) and I am even considering adding an airflow guide at the top of the case to minimize the chance of warm air being pulled back in. I'm also thinking about adding one more fan at the rear of the case, blowing air in (seen in the photo), to increase overall airflow. But I’m not sure if that would improve cooling or if it might actually disrupt the air flow on the bottom most fan, which i think it would. But wondering everyone thoughts on adding the extra fan on the bottom.
 

Any thoughts or suggestions on optimizing this setup would be appreciated!

Going with a NH-D15 for CPU cooling

 

IMG_0439.jpeg

[PDifolco]

Hmmm, having one intake and 2 exhaust fans on top isn't really useful imo, it'll just create airflow conflicts

Same if you put fans on the side, they won't really help

I'd just let front as intake and top /rear on exhaust, with front fans running faster to compensate for the 4:3 ratio, and because hot air tends to rise naturally

[emosun]

You got enough fans there that the direction of flow doesn't really matter.

Airflow direction really factors in when your cooling ability is limited. Like in the case of having a very large case with not enough fans. But you have 7 fans not to mention the entire back of your case is basically just mesh and open to the world anyway. So case pressure or or direction of flow doesn't really matter at this point.

All any computers cooling has to do , is make hot air go out , and have cool air come in. that's it. If the machine exchanges air quickly , then that's all is has to do.

A lot of cooling companies and tech youtubers (LTT included) NEED pc cooling to sound complicated..... because they are selling you crap to cool your pc with.

It's not complicated , hot air go out , cool go in , dust it sometimes , job done.

the temperature of the room .... has a bigger effect on cooling than fan direction in a case thats basically open anyway.

[OddOod]

1 hour ago, PDifolco said:

and because hot air tends to rise naturally

While true in a closed box, as soon as you include any airflow, even a fan running at the lower end of what can be sustained, that diffusion is completely destroyed and regular air flow is massively dominant

[MathewBoyd_]

3 hours ago, emosun said:

You got enough fans there that the direction of flow doesn't really matter.

Airflow direction really factors in when your cooling ability is limited. Like in the case of having a very large case with not enough fans. But you have 7 fans not to mention the entire back of your case is basically just mesh and open to the world anyway. So case pressure or or direction of flow doesn't really matter at this point.

All any computers cooling has to do , is make hot air go out , and have come air come in. that's it. If the machine exchanges air quickly , then that's all is has to do.

A lot of cooling companies and tech youtubers (LTT included) NEED pc cooling to sound complicated..... because they are selling you crap to cool your pc with.

It's not complicated , hot air go out , cool go in , dust it sometimes , job done.

the temperature of the room .... has a bigger effect on cooling than fan direction in a case thats basically open anyway.

Thank you girl 

[emosun]

4 minutes ago, MathewBoyd_ said:

Thank you man

girl