Soldato
if your only cooling the cpu and 2 Gpus, buy the 1 sp120, you should be able to fit it in, I would like to see a picture to why not and your temps should be fine.
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If you see where my tubing is on the right hand side, the fitting and tubing is right where the fan would be, almost touching the rad.
My main reason to put it in this case is so i can get a fairly neat build with a lot of hd tubing action:
As you can see, the motherboard is SB block is perfectly lined up so i can do an L of hard tubing into a 90 degree EK fitting connected to the block so i can go GPU1(first slot) -> SB block -> GPU2 (third slot)
The case shape and large window makes the insides look all flashy action rather than a tangled bush of wires!