Cooling - Planning to Water cool x2 graphics cards and CPU, help with fan placements!

kieranh-17

Reputable
May 27, 2015
6
0
4,510
Iv just bought x2 AF120's and x2 SP120's. I know the SP's are meant to be paired with the Radiators for the water cooling. I have a NZXT Noctis 450 Case.

Im very unsure on where to place the fans ready for the rads to be fitted at a later date. As the air comes in through 3 front fans at the moment, and 1 exhausting out the back, so i will be replacing the one pulling the air out with an AF120. Im unsure whether the water cooling for the graphics cards and the radiators for them should go at the front where the air is coming in. As I heard the dust gets trapped between the rad and fan if the air is being pulled inwards, am i correct? If someone could shed some light on this, would be great help.

My case: https://www.nzxt.com/product/detail/154-n450-noctis-gaming-mid-tower

My fans: AF120 http://www.corsair.com/en/air-series-af120-performance-edition-high-airflow-120mm-fan

SP120 http://www.corsair.com/en/air-series-sp120-high-performance-edition-high-static-pressure-120mm-fan
 

toolmaker_03

Honorable
Mar 26, 2012
2,674
0
12,960
just for some info for all that hardware one would need like 2 X 360mm radiators at minimum a 360mm and a 240mm but that is only because I have 3 water cooled units and the smallest one I have is a 360mm radiator on a CPU and one video card at stock speeds no clocks on the hardware. here are the load temps on that system.
https://imageshack.com/i/npuzs7j
CPU is 48C
GPU is 53C
https://imageshack.com/i/120plbJ
https://imageshack.com/i/f7ervgj
if I clock this system even a little, the temps on the clocked component will skyrocket, as the water cooling system is at its thermal limit, at stock settings, with only a 360mm radiator to remove the heat being generated.