I will be posting details about my rig soon, I use NO fans on the radiator(s), I use mothernature's natural cooling method, details to follow soon........and yes I use a block on the Northbridge chipset, as of now I have a small fan on the southbridge, an oem on the videocard(but nicely overclocked!)and the 2 that are in the Enermax 650 PS...............details soon
Jim