[Khledar]

Ok I'm a bit confused, I've drawn up a pic of the possbilities, there are 2 fan positions I can concieve and 3 or 4 fan directions or whatever (the pic has 3 but there are really only two but whatever) Just pick the colors on the picture which describe it best, my tablet is downstairs so the pic is ugly but whatever. Green fan (2) is on the top of the rad (inside outside case irrelevant). Red fan (1) is beneath the rad. Blue air flow (3) is just if you don't have the "default" upward flow depicted in the red/green.

Maybe I'm totally off, just hoping the pic will help you calirfy what it is you're doing.