well we are also using a modded water block and we are not overclocking yet the temps on the core are 30 to 40c and the mobo is saying 55c but the north bridge doesn't seem the to be hotter that 35c but am scared that when we oc hopefully pass 4 ghz it will overheat...

by the way anyone has the bios settings for 4 ghz on a 920 core i7 using a P6TD deluxe... thanks