Hello, I just bought this Heatsink here (http://www.newegg.com/Product/Product.aspx?Item=N82E16835181011). As you can see it has the copper pipes on the bottom. In the description it says "four 8mm copper heatpipes directly contact your CPU". Does this mean that I do not need a thermal compound paste to apply onto the cpu? Don't have much experience with installing these. Thanks in advance if you know the answer!