But could some interaction between the memory and the MB be resulting in this northbridge heat? It can barely be touched during run and the system temp reads around 40C. The memory voltage is qouted "auto" in the asus utility and all settings have been left as they were. I was hoping that I could run the computer passively, with just case fans running, but I dont feel comfy turning the cpu fan off when the NB is so hot to the touch.. -or should it just be so????
By default the north bridge runs hot on Asus Conroe boards.
Three things to do (in order of difficulty/expense/effectiveness):
Disable "Hyper Path 3" in the BIOS. This feature is on by default, and causes the north bridge to be overclocked by 33% which makes it run hot (it ties the strapping to 800 instead of 1066).
Replace the TIM on the north bridge. Stock
TIM on motherboards is typically chosen for simple reliable assembly, not performance.
Replace the north bridge heat sink. The Thermalright HR-05 is the ultimate, but there are other good choices from Zalman and Swiftech as well.
EDIT: fix typo, meant HR-05!
I guess IÂ´m now just two fans away from my goal. The Antec tricool fan that came with the Solo is now the most noisemaker, and not standing up to anything IÂ´ve read about in various forums. It has sum eneven hum or self resonance. IÂ´ll guess IÂ´ll swap it and the fan that came with the ninja out for maby schyte S-flex or a Papst fans and then my system should be silent and sweet. Any thoughts on that?
Is it possible to control a three pin fan through the four pin cpu fan head? Now IÂ´m running the cpu fan as a case 1 fan since the Asus Q fan would run the included Schyte fan at 1300 rpm in every mode.