Cooling Performance with Margin The cooling performance of the Alpine M1 is more than sufficient to keep every AM1 CPU at bay by margin and cools efficiently even the most power hungry AM1 APU. Cooling performance & noise level on AMD Athlon 5350 Quad-Core (full load) Alpine M1 (750 RPM) 0.05 Some Stock cooler (4000 RPM, non PWM, unregulated) 46 DegreeC 0.4 Some Whisper quiet An 80 mm low speed fan delivers the desired airflow and pressure without producing any audible noise. Even under full load it generates only 0.1 Some. Outstanding Service Life The low speed not only reduces the noise level to a minimum but also translates into excellent wear protection for a significantly longer service life. Easy Installation The quick and easy mounting system provides excellent stability and merely takes a few minutes. Thanks to the pre-applied MX-2 thermal compound, a quick and clean installation is guaranteed! Compatibility: AMD Socket AM1 Max. Cooling Performance:50 Watts Heatsink Type: Aluminum Extrusion Fan Diameter: 80mm Fan Speed:750 RPM Noise Level: 0.1 Some at 750 RPM Current / Voltage: 0.030A / 12 V Bearing: Fluid Dynamic Bearing Size & Weight: 80x80x41mm at 172g