Thoughts about using the rear fan as intake?

[SaHaRzZz]

I know how it sounds, but the situation i'll be handling will look like this:

 

NZXT H710 + dual 280mm radiators front & top.
I tried to mspaint what I'm thinking of doing, do you think it's better to use the 140mm as intake rather than exhaust in my case?

[Bombastinator]

If you do it that way you may want one of those magnetic stick on filters for your rear fan.

[RAS_3885]

4 minutes ago, SaHaRzZz said:

I know how it sounds, but the situation i'll be handling will look like this:

 

NZXT H710 + dual 280mm radiators front & top.
I tried to mspaint what I'm thinking of doing, do you think it's better to use the 140mm as intake rather than exhaust in my case?

 

It's usually best to have the air flow smoothly from intake to exhaust without having to change direction significantly.  Otherwise you'll introduce a lot of turbulence, which could hinder cooling.

 

BUT, based on the fact that you have x2 280 mm rads I'm guessing your CPU and GPU are water cooled.  Is that correct?  Is so it will probably be fine, but I'd still use the rear as an exhaust to try to get some flow across the remaining motherboard components.

[nick name]

I think you'll find it more satisfying to test it out yourself.  

 

I, myself, wouldn't use air from within the case to cool a rad.  

[PopsicleHustler]

Why tho? It will create a ton of turbulence and create dead zones where air isn't moved at all. 

 

@RAS_3885 Forgot to mention that CPU and GPU aren't the only components that create heat. Rest of the graphics card will create heat and VRMs around CPU will also create A LOT of heat since you will overclock the hell out of the CPU and also the GPU.

 

You're better off with "Classic" front intake and rear/top exhaust. Just setup the fans in such a way that intake fans spin faster than exhaust fans to create balanced airflow.

[RAS_3885]

3 minutes ago, PopsicleHustler said:

 

@RAS_3885 Forgot to mention that CPU and GPU aren't the only components that create heat. Rest of the graphics card will create heat and VRMs around CPU will also create A LOT of heat since you will overclock the hell out of the CPU and also the GPU.

I agree, which is why I stated I'd still go with rear exhaust for all the reasons you mention.

[SaHaRzZz]

23 minutes ago, RAS_3885 said:

It's usually best to have the air flow smoothly from intake to exhaust without having to change direction significantly.  Otherwise you'll introduce a lot of turbulence, which could hinder cooling.

 

BUT, based on the fact that you have x2 280 mm rads I'm guessing your CPU and GPU are water cooled.  Is that correct?  Is so it will probably be fine, but I'd still use the rear as an exhaust to try to get some flow across the remaining motherboard components.

 

6 minutes ago, PopsicleHustler said:

Why tho? It will create a ton of turbulence and create dead zones where air isn't moved at all. 

 

@RAS_3885 Forgot to mention that CPU and GPU aren't the only components that create heat. Rest of the graphics card will create heat and VRMs around CPU will also create A LOT of heat since you will overclock the hell out of the CPU and also the GPU.

 

You're better off with "Classic" front intake and rear/top exhaust. Just setup the fans in such a way that intake fans spin faster than exhaust fans to create balanced airflow.

Yes both my CPU & GPU are water cooled, but the VRMs on the graphics card are air cooled by a 92mm fan (NZXT Kraken g12).

And yes I want to make sure that the MB's VRMs are cooled as well (x370 crosshair vi hero),
and the main reason I think about this setup is because I want to top radiator to get cooler air and I'm thinking that this is the way to do it, I can't mount a 280mm rad as rear exhaust.

So you think keeping the rear fan as exhaust will be preferable in any case?

[mr mans]

It should work but you'll need a solution for dust

[SaHaRzZz]

11 hours ago, vukos said:

It should work but you'll need a solution for dust

Completely blanked about this one, I don't have a rear dust filter and I should definitely use it as exhaust.
 

[Bombastinator]

2 hours ago, SaHaRzZz said:

Completely blanked about this one, I don't have a rear dust filter and I should definitely use it as exhaust.
 

If it’s exaust you don’t need one.  Only if it’s intake.  They’re really cheap.