Computer usually three places have "Micro Cooling Fan", a power supply, there are a fan, you can open, add a little butter for industrial use; the other two are the CPU fan or the graphics card fan, can add industrial use at the axis butter do workarounds. Of course, such an approach means that the computer "Micro Cooling Fan" prolonged use, accumulate a lot of dust caused by uneven rotation shaft method adopted. Buy a new computer, or home use, this month, indicating that "Micro Cooling Fan" quality is not, as the economy permits, the proposal is still a good new ones, in order to be quiet, it is worth the money spent.