Carefully inserted under the "Tiny Cooling Fan", round sticker with the trademark central fan carefully opened, you can see the center of the central shaft is exposed, with Vaseline (very cheap, pharmacies are selling) carefully painted, round stickers can be carefully sealed with a trademark. "Tiny Cooling Fan" principle: mostly used to smear Vaseline hand, to prevent winter dry skin, chapped, it has a feature: when the fan generates heat, Vaseline will melt gradually penetrate into the fan bearings are lubricated, shutdown "Tiny Cooling Fan"stops working, the temperature will be solidified stand down Vaseline, this method than adding any lubricant effects are good. Installed chassis, the chassis at the front and rear rubber mat slightly thicker skin, play a role in damping.