Looking down from above the TX2, you can see that the unit has six copper heat pipes that go through the aluminum fins. These copper heat pipes connect to the bottom heatsink base, which is also made of copper. From below, not only do you see the copper base, but you are also able to see that Cooler Master has already put a thermal compound on the base, which is nice if you do not have any thermal paste laying around.



Link: Overclockersclub