I installed my i7-920 in my old koolance pc2-601 case with the stock intel heat sink because i had no other decent sized cases. tired of seeing 80C @3.2 with the stock cooler I wire tied the cpu-300 water block to it with some 12-2 electrical wire. after a hour @3.8 1.37vcore she's at 75c Not to shabby for a 6 year old water cooling system. though i did change the fan configureation. 3-80's pulling air out over the radiator 4-80's pulling air in plus one of those cheap duel slot pci fans blowing over the chipset. motherboard temp is 30c. http://www.google.com/imgres?imgurl...mage_result&resnum=7&ct=image&ved=0CCEQ9QEwBg