FrostyTech has posted a review on the AVC 117140 Socket 478 Heatsink
We first got our hands on this attractive cooler at COMDEX fall of last year. At the AVC booth we learned that the heatsinks are made by a two step process. The aluminum fin sections are first extruded and cut to size, then the individual fin sections are placed into a machine that bends all of the fins to give them the shape you see below. When this has been accomplished, the center portion is reamed to the appropriate diameter and the copper slug pressed in for a tight interference fit. The copper slug is the only part of the heatsink that actually touches the core of the processor, and it is left a bit above the rest of the body to ensure a flush fit when installed.Read more
