Cpu Fan Copper Heatsink K8/P4 Universal Retention Module for Intel Pentium 4 (Socket 478/LGA775), Celeron & Celeron D (Socket 370/478), AMD K8 (Socket 754/939/940), Sempron (Socket A/754) and K7 (Socket A) Six embedded heat pipes provide superb heat dissipation, aluminum and copper alloy Special heatsink design achieved maximum cooling performance at any mounted angle Raised base design to avoid interfering with components surrounding the CPU Special welding techniques enable seamless connections between fins and pipes