Typically, the temperature hot summer, "Micro Cooling Fan" of speed relative after another. In this case, the user can try auxiliary cooling system, using laptop external convection air cooling, if possible in air-conditioned indoors, the effect will be better. In addition, when the user performs a large application or game, "Micro Cooling Fan" speed will be improved accordingly. It is worth noting that if the cooling fan whirring sound emitted a long time, most likely from dust or friction between the shaft with bearings, recommends that users regularly notebook "Micro Cooling Fan" to remove dust or grease-related after-sales maintenance .