360° View - Vantec Aeroflow FX 120 VAF-1225 Heatsink Information on Frostytech's test methodology is available here.
The 120mm PWM fan spins at 1600-2200RPM and draws power from a standard 4-pin PWM motherboard fan header. It is backwards compatible with 3-pin connectors. The three copper heatpipes are 8mm in diameter, and extend from the base up to the top of the 162mm tall Vantec Aeroflow FX 120 heatsink. The two cuts in the aluminum base are for the AMD K8 mounting clip to lock into. The aluminum fins measure 0.35mm thick and are spaced 1.5mm apart.
The Vantec Aeroflow FX 120 heatsink stands 162mm tall, the fin is 35mm above the CPU socket for clearance of adjacent capacitors, northbridge heatsinks, etc. The three copper heat pipes are positioned side to side at the center of the aluminum block where they make direct contact with the processor. The base incorporates a 14mm thick aluminum section to provide support for clamping brackets.
The usable area of the Vantec Aeroflow FX 120's base is 35x41mm. Each of the 8mm diameter copper heatpipes has been swaged into the aluminum base block, and each surface made flush by a light sanding. Looking from the top down, we see an extra aluminum plate attached to top for purely decorative reasons. Curiously, there isn't a plenum behind the 120mm fan.