At the center of the NPH-1366-115HC heatsink is nPowertek's proprietory copper heat column - essentially a 33mm diameter copper heatpipe. The inner walls and base of the heat column are covered by a sintered metal wick and the contents under vacuum with a small amount of working fluid. The nPowerTek NPH-1366-115HC heatsink is intended for socket LGA1366 Intel processors up to 150W TDP...