Oh, seems I forgot to mention that this is inside a Corsair Obsidian 800D case. Therefore the air comming from the outside is coming from the bottom. Probably going to replace the original 140mm fan to a 140x140x38mm or something... Some fan that really moves air
Still I find more problems... If I attach the radiator that is inside to the top, what holes do I use to mount the external radiator? After some thought I came up with a solution: Instead of putting the screws through the top of the case and directly down into the radiator inside, I will take the screws through the fans on top, then down through the top of the case and down in the radiator. But then I will need some longer screws, anyone know where to get some with the same dimention as those following a Noctua NF-P12?