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rear exhaust as intake

582 views 10 replies 6 participants last post by  ThrashZone 
#1 ·
The idea would be to turn the rear exhaust on a case to intake to help cool the vrm's on a x299 board. It's going to be a 280 rad setup as a push config up at the top.
So it would draw cooler air in then get pushed up and out.
What do you guys think?
 
#3 ·
yes, the rear will be a 140mm
 
#4 ·
What gpu are you using, and how are you cooling it?

Turning the rear exhaust fan around will cool vrm more, but it will also mean that the gpu heat if air cooled could be recycled into the GPU cooler more and raise gpu temperature. Removing all unused pci slot covers should help.
 
#5 ·
it's going to be a 1080ti strix
air cooled
the case has vented pcie covers
 
#6 ·
I'm not sure removing PCIe slot covers will help .. and vented PCIe slot covers still restrict airflow more than 50%. Reason I don't know if removing them will help is because any airflow coming out of them will be warmed and even if case is setting a foot away from wall a rear intake would likely be drawing at least some of this heated exhaust back into case.

Would help to know what case you plan to use. Some have enough venting to accommodate reverse flow .. and some don't. If GPU is mounted low and case has 2x 120/140mm bottom intake vents to supply cool airflow to GPU then a top radiator intake with rear intake and 2x-3x 120/140mm front exhaust would probably work.
 
#7 ·
corsair 750D
 
#8 ·
Quote:
Originally Posted by SirWaWa View Post

The idea would be to turn the rear exhaust on a case to intake to help cool the vrm's on a x299 board. It's going to be a 280 rad setup as a push config up at the top.
So it would draw cooler air in then get pushed up and out.
What do you guys think?
Hi,
Do you have a lot of hdd trays on the front ?
I tend to put my rads on the front for intake top too now for fresh air in.
Back all exhaust.
 
#9 ·
Hi there

I tried that on my Enthoo Primo,running rear exhaust fan as intake or as exhaust, at the end I run as exhaust and tried as well to run without the rear exhaust fan, which at the end I was running for while

But yes if you can put use at bottom 120/140mm fans then this would help but you are starting with wrong case, get better case something like is Enthoo Primo I would highly recommend

Hope this helps

Thanks, Jura
 
#10 ·
Quote:
Originally Posted by ThrashZone View Post

Hi,
Do you have a lot of hdd trays on the front ?
I tend to put my rads on the front for intake top too now for fresh air in.
Back all exhaust.
I plan to remove the 3.5" trays and go all 2.5" drives that mount on the right side of the case (hint, no more mechanical drives this time around)
biggrin.gif
Quote:
Originally Posted by jura11 View Post

Hi there

I tried that on my Enthoo Primo,running rear exhaust fan as intake or as exhaust, at the end I run as exhaust and tried as well to run without the rear exhaust fan, which at the end I was running for while

But yes if you can put use at bottom 120/140mm fans then this would help but you are starting with wrong case, get better case something like is Enthoo Primo I would highly recommend

Hope this helps

Thanks, Jura
too late... but I believe thereis a spot to mount bottom fans, as long as I remove the hdd trays
 
#11 ·
Hi,
Yeah they have some good space saver brackets for ssd's for vertical mounting on the back wall slot space
thumb.gif

Also behind the back panel there should be 2 ssd holders
smile.gif
 
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