hi i am building a new pc evga 112ck-nf67-t1 mb q6600 proc and i am looking for good cpu heatsink. heard some good reviews on noctua nh -12p and tunig tower and the thermalright hr-01 plus but my question is isnt the tunig heavy enough to put to much weight and down pressure on the mb will it crack it ?the case is a coolermaster cosmos . any good suggestions on keeping the proc cool? thanks alot .