Focus on "Micro Cooling Fan" noise, the general principle is according to their own needs. Chassis fan noise will definitely happen in the process of operation, the unit is "dBA". "Micro Cooling Fan" Generally speaking, the higher the speed, the greater the noise, but the better the cooling effect. Thus, faced with the noise and cooling effect, we want according to their actual situation. If the main game to play, thinking to computer equipment is high, and the game's sound effects can mask the fan noise, advocates point Consideration cooling effect. If the "Micro Cooling Fan" in normal use, work, HTPC use mainly silent is the most important. In this case, those of quieter products are the first choice.