The 80mm non-PWM fan spins at 1200-2400RPM and draws power from a standard 3-pin motherboard fan header. Just two 6mm diameter copper heatpipes rise up through bare aluminum fins which have a dimpled surface texture. Each aluminum fin measures 0.4mm thick and is spaced 2.0mm apart. The surface texturing on each fin consists of a very small dimple popping out on both sides of the metal.

The SilenX EFZ-80HA2 heatsink stands 112mm tall, the bottom-most fin being 31mm above the CPU socket. The two heatpipes are positioned side to side where they make direct contact with the processor. The base incorporates a 10mm thick extruded aluminum section to provide support for clamping, with 10mm high fins for a little extra cooling surface area.

Looking at the top of the SilenX EFZ-80HA2 heatsink we can see dimpled fin texture easily. The edges of the stamped aluminum fins are sharp, so take care when handling. The base of the heatsink measures 37x43mm in area. The two exposed copper heatpipes are centrally located both at the base and where passing through the 37mm-wide aluminum fin stack.