Optimal fan/AIO placement for Fractal Design Deine R6

Aug 5, 2001
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I am in process of assembling my build and am stymied regarding what may be the best course in terms of fans/AIO placement. I think I am overthinking this and would appreciate any help:

My system:

i7-8700K (will be overclocked)
32 GB RAM
1070ti GPU
EVGA CLC 280 cooler (https://www.evga.com/products/product.aspx?pn=400-HY-CL28-V1)
Fractal Design Define R6 case (http://www.fractal-design.com/home/product/cases/define-series/define-r6-black#tab-info)

The case comes with three stock fans (Dynamic X2 GP-14 - http://www.fractal-design.com/home/product/casefans/dynamic-x2-gp-14) - 1000 RPM/68 CFM). Two are mounted as front intakes and one as rear exhaust.

EVGA CLC 280 comes with two fans on the radiator (https://www.evga.com/articles/01141/evga-fx-series-fans/ 600-2200 RPM/113 cfm).

Choice 1. I could remove the stock front intakes and install the AIO in push configuration. Does it make sense to plan for the max 2 X 113 = 226 CFM flowing into the case from the front and up to 68 cfm exhausting through the rear. Of course, in this configuration I am blowing air heated by the radiator into the case and straight over the RAM. Is this a theoretical problem or does it pose a problem practically? Would I need to run the rear exhaust with same PWM profile as the AIO to ensure positive pressure inside the case?

Choice 2. Install the AIO on top in push/exhaust configuration. In this configuration, I am going to be running some hot air from the GPU through the radiator and running the CPU a bit hotter but other components a bit cooler. Again, is this a theoretical problem or it does pose a problem practically? More importantly, do I need to add more intake fans for positive pressure as I now have up to 226 cfm exhausting through the radiator on the top and 68 cfm through the rear (294 cfm total) while my stock intakes can push a max of 128 cfm combined. I can add one, perhaps two intake fans at the bottom. Could I remove the rear exhaust to bring the exhaust cfm down?

TIA - I am really confused. Please help :)
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
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pull intake... always make sure you radiators is getting the coldest air possible.. which is intakes.

Also pull makes maintance easier espeically if you have a filter up front.