I'm hoping xd_1771 will weigh in here. I recently installed a XSPC Rasa RS360 kit to OC my 955 in an Asrock 970 Extreme4. Temps are ridiculously low, I'm seeing 31c load at stock freq and 38c at 4.1ghz. I'm having to crank voltage to get anywhere though, 1.525v to get to 4.1 when I can run Prime95 all day at 1.4v at 3.8ghz(37c load by the way). My main concern is how hot the heatsink over the VRMs is getting; even at 1.4v it is very very warm to the touch. Is spot cooling a necessity with a waterblock? I have a 120mm exhaust fan going full blast right next to the VRMs that seems to make no difference at all.
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10/6/11 at 2:29pm