I just bought and installed this heat sink onto my build. Aerocool Mechatron Mid tower w/ 3 200mm fans and 1 120 mm fan on the back. All fans are high performance fans. I have the side and front fans(200mm) blowing air in and the top(200mm) and back (120mm) blowing out. Everything seems just fine but I can not get the temps below 100 degrees Fahrenheit. I put the fan on wrong and had to turn it around 3 times to get it to fit on right. When putting it back together in my head I was thinking that if I continued and did not reapply paste that I was not going to get the temps that I wanted. Was I correct or is the Arctic Freezer 13 just not enough to get my I7 960 below 100 degrees Fahrenheit? No overclock on the cpu at all and memory set to 1333mhz (not enough of a overclock to add more heat to the cpu by what I was told).