I cant see the second radiator in the picture... (but i will assume i have guessed where it is correctly) what i find qurious is that the sli setup seems to recieve the water AFTER the cpu has been cooled.. So i would have imagined that the GFX cards would be the warmest.. Atleast from the picture.. I presume that you have the second radiator higer up in the picture along with the pump.. I cant really see why the cpu would get hotter unless the radiator mounted at the back of your pc (the one in the picture) is not cooling down the liquid adequatly.. maby if you had some washers.. (spacers) to space the radiator slightly futher away from the back of the case the air flow thru the radiator would be improved.. and subsiquently improve the cooling.. but wether or not that would drasticaly improve the Temperature or not would need to be seen in practice. I cant see any real cooling for the north bridg either.. ive been told that heat pipes alone are a little lacking once you have removed your cpu fan and the air flow it provides. Personally i cant say i notice much but i always tend to go cooling mad. Looks nice by the way.. I dont really bother with nice myself its a little bit more expensive, and im a skinflint . But im sure that she preformes well , hope you get it just how you want it.. "even though i tend to get bored with my pc's when they work just fine lol"