Yeah. The case is less crowded than it appears in the picture, but it's certainly not an easy fit.
Basically, all of the cold air comes from on the desk and through the front mesh due to negative pressure. It really doesn't change temperatures inside the case since all heat producers (other than the HDD and MOSFETs) are liquid cooled. The (slightly) warmer air rises, naturally, since the low speed 120mm's have pretty much no power once passing through a 30FPI double thickness (~40mm) radiator. Anyways, up top two low speed 140x25's push air out the top, and one medium speed YL 120x12 moves air out the back to help create negative pressure. Back on the bottom, there is a Delta 120x38mm on a switch to help move things along during gaming. Though the card still never exceeds 55C even on low speed fans.
The name for each motherboard's thermal diode's will be different. For me, they are fairly intuitive, but not all motherboards have names for the diodes that make sense.
Just post a screen shot so I can see what the namings are for you board.