Officially recommended by VIA, CNPS6100 does not use a fan on the CPU heatsink, resulting in perfectly noiseless operation.


Features
1)Zalman's CNPS6100 CPU Cooler does not generate noise or vibration at all.
2) The heat dissipating material of the Flower HeatSink (FHS) is Pure Aluminum and Copper.
3) VIA CPU can be cooled to a temperature sufficiently below the what is required for stable operation without a fan. ....
http://www.via.com.tw/en/viac3/C3_silent.jsp
4) Zalman's CPU Coolers enable very stable operation of a CPU in an OVERCLOCKED environment.

*Zalman Tech. Co., Ltd. is not responsible for any damage to a system or a CPU caused by CPU OVERCLOCKING.