Asus Silent Square Heatsink for LGA775 AM2 Universal Application: The Silent Square Pro supports the Intel Core 2 Extreme/ Core 2 Duo processor, Intel Pentium D Dual-Core CPU, Intel Pentium 4 LGA775 & Socket 478 CPU, AMD Athlon 64 X2 Dual-Core CPU, AMD Athlon 64(-FX) Quick - Five copper heat pipes efficiently transfer heat to the fins, maintaining temperature for high-performance computing Superior Performance for Overclockers - The Silent Square Pro incorporated a "wave-shaped" double side fin design on both sides of the cooler for larger hear exchange area. Reliable - The fan positioned inside the frame and VRM shield guide cool air to critical components around the CPU for stable operation. Easy Installation The patented retention module enables easy installation in three simple steps even without removing the motherboard from the system or memory modules from the board and regardless of the processor platform