Getting to reconfigure my CPU cooling system

So currently this is my configuration for the radiator for my H100i:

120mm-120mm

-----radiator-----

120mm-120mm

I was thinking of using this configuration. By using this method, it'll allow to make the other 2 120mm fans redundant so I could use one for the GPU's intake air, while the other one could be used in the other system for exhausting hot air, as right now it hasn't got any. So here's the proposed method:

240mm-240mm

-----radiator-----

120mm-120mm

Note the case I have, it's the CM HAF-X. So there is 2 spots at the top where both 240mm fans can go. So how would either of these ones go?

ok, even though my H100i has its own problems now, what does everyone think of this still? Just in case :P