Product Overview Finally an end to noisy Dual Xeon Nocona based workstations. This heatsink boasts 6 heat pipes that are equipped with two virtually silent 80mm fans that efficiently cool this heatsink. This heatsink will only work with the new Intel Xeon motherboards that support the 800MHz FSB Intel Xeon Nocona processor and the new mounting hole pattern, and is designed for workstations and rackmount chassis at least 3U in height. X20 Installed On Motherboard Specifications Anti-vibration fan mounting Extreme and silent cooling power Long lifespan due to 2 ball bearings/each fan 1 x 80x80x25mm Varax-Fan with radial design and internal temperature-control and 1 x 80x80x25mm Axial-Fan with fixed RPM on heatpipe-aluminium fin heatsink with 3 x 6mm heatpipes Screwable heatsink Connection with built-in safety against polarity reversal, blockage or overload Fans made of fibre-reinforced PBT* UL Class 94V-0 Power connection: 3PIN Molex-Connector 2510 with RPM signal wire Weight 575G