The heatsink can be mounted either way but this is not the issue.

The problem is I am not sure whether the heatsink will fit over the northbridge heatsink that is on the motherboard. The Thermalright website says that it will mount on the Rampage Formula but I don't know if it will mount both ways and still fit...

Yes, I can use 120 mm fans as well as 140 mm fans for every location on the case. I just figured I would get more air flow out of 140 mm but if this is not the case I am willing to switch.

What does everyone reccomend in the fan area? I like the XCLIO Amazing fans because they have a rear mounted control and I can change the LED color but as long as the fans have a blue LED then they are okay...

Keep the opinions coming...