7/9/2023 0 Comments Smc fan control not working![]() ![]() If you use your computer on a soft surface like a couch, pillow, bed, or your lap, its fans might run more. The surface your Mac rests on can block its vents, affecting fan behavior. Mac Pro (Late 2013) brings in cool air through vents at the bottom of the computer and sends out hot air from the top.Mac mini models bring in cool air from beneath the computer and vent hot air from the back.iMac computers have vents along the bottom edge and on the back.On Mac notebooks, the vents are along the side and in the back.Make sure that the vents aren't blocked to allow your computer to perform at its best. Mac computers have vents that let its fans bring in cool air and expel hot air. Make sure the vents on your Mac aren't blocked If the ambient temperature is high, the fans turn on sooner and run faster. This rushing-air sound is a normal part of the cooling process.Īmbient temperature, the temperature outside the computer, also plays a role in the fans' responsiveness. You might hear fan noise when this happens, especially if you're in a quiet environment. If your computer's processor is working on intensive tasks-such as compressing HD video, playing a graphics-heavy game, or indexing the hard drive with Spotlight after you migrate data-the fans run faster to provide additional airflow. As per this article : About fans and fan noise in your Mac - Apple Support
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