Positioned as an ultra quiet cooling module for PC enthusiasts, the 'K' in the XDream K640 denotes platform support for AMD systems only. Within AMD's processor lineup, the XDream K640 is fully compatible with Socket 754 / 939 / 940 and even the latest Socket M2 processors. This means that Sempron, Athlon 64, Athlon 64-FX, Athlon 64 X2 and Opteron processors are all compatible with the XDream K640 cooler..



Link: Hardware Zone