The Ultra Quiet AK-CCE-7101CP uses a high engineering omni directional heatsink providing efficient CPU and motherboard zone cooling. The fan uses Intel approved power management (PWM) where speed is regulated automatically by CPU usage. Under normal conditions the CPU fan speed is low ensuring low noise computing. Intel approved pushpins ensure easy installation reliable retention and maximum compatibility on both LGA775 and LGA1156 platforms without any mounting adjustment pushpins will automatically slide into correct position.AK-CCE-7101CP is designed to work with CPU?s up to 95W but greater cooling efficiency can be attained with efficient case airflow. Pre-applied high performance thermal compound ensures clean and easy installation.