Thermaltake Silent 775 CL-P0092 Heatpipe Cooler for Intel LGA775 Prescot Designed for Intel P4 LGA775 Prescott Funneled 90x90x25mm fan centralized airflow provides high air pleasure and better cooling Rainbow color fan and sapphire blue cover bring fashion style to your PC Heatpipe Technology provides the best cooling performance Large copper base enhances great thermal conductivity, spring screw design easy to install