Asus V-Nardo Heatsink LGA 775 Optimized Performance and Acoustics - PWM function enables silent operation in normal mode and also provides the capability to cool down effectively while CPU temperature is high. VR-Care - VRM shield guides cool air to critical components around the CPU for stable operation. Easy Assembly Advanced push pin design: tool free & back plate free. Small Size for Effective Cooling - Asus innovative hidden fan design for achieve superior cooling capability as other coolers yet smaller and lighter. Heatsink Dimension (mm) - 90 x 98 x 101