"Micro Cooling Fan" mode means that the main method of cooling the radiator to dissipate heat in. In thermodynamics, heat is the heat transfer, and heat transfer, there are three main methods: heat conduction, convection and radiation. Substance itself or when in contact with the material substance, transfer of energy is called thermal conductivity, which is the most common type of heat transfer manner. For example, CPU heat sink base and the CPU direct contact heat away way belongs to heat conduction. "Micro Cooling Fan" refers to the thermal convection flow of fluid (gas or liquid) will go tropical heat transfer mode, the computer chassis cooling system is more common cooling fan driven by the flow of gas, "forced convection" cooling mode . Thermal radiation refers rely ray radiation heat transfer, the most common is the daily solar radiation. These three "Micro Cooling Fan" cooling methods are not isolated, in the daily heat transfer, the three cooling methods are simultaneously, co-acting.