Which System of Case Cooling is Better? (NZXT Phantom 530)

Unpolarize

Distinguished
Oct 30, 2015
25
1
18,545
My Case is the NZXT Phantom 530. It's typically meant for water cooling your CPU, but since I'm not overclocking, I decided to go with air cooling the CPU with the Hyper 212 Evo. However, the very top of my case does not have a dust filter, so dust can easily get inside through the top and accumulate inside my case. I thought about just getting a dust filter to fix this, but since I'm going with the AMD R9 390 which runs pretty hot, I thought I would just put two exhaust fans on top instead to push the dust out.

Here is the what I came up with. I can either do 140mm or 200mm fans on top. The Front and Rear fans are already on the case so I plan on buying these extra fans separately -

RQTXgC.jpg


My problem with this design is that the front exhaust fan on the top of the case may take away needed air for my CPU cooler. As you can see though, I have many options for intake fans on the bottom and front of my case. I thought, maybe I don't need them...So I tried to simplify the design a bit to get air going into the CPU cooler -

S4fbZ9.jpg


Now the problem with this design..I'm afraid air being taken in from the front top intake may instead be re-directed a bit to the back top exhaust. Another problem I have with this is the fact that this front top intake will take in quite a bit of dust.

My case is the NZXT Phantom 530 (Full Tower), here are the possible variations of fans I can use:
Top:
3 x 120mm Fans
2 x 140mm Fans
2 x 200mm Fans

Bottom:
2 x 120mm Fans

Rear:
1 x 140mm Fan (existing one)
1 x 120mm Fan

Front:
1 x 200mm Fan (existing one)
2 x 140mm Fans
2 x 120mm Fans

I can also add a fan inside the case at an angle that hooks to one of the Hard Drive cages, but I know this will get in the way of my video card so it's out of the question. If anyone can give me their opinions of the 2 concepts I have or maybe offer an alternative. I'm going to be buying fans in bulk so I can go with whatever. I just want good airflow without dust getting inside of my case so easily.

Thank You.