Some Apple products contain sensors that respond when they detect temperature changes inside your system or device, turning on fans to bring cooling airflow to critical components.

EDGE Chassis by Most. 3,886 likes 13 talking about this 40 were here. Automotive, Aircraft & Boat. Purchase on NASCAR.com and log into the app to use on mobile devices.

About fan noise

If your device'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. You might hear fan noise when this happens, especially if you're in a quiet environment. This rushing-air sound is a normal part of the cooling process.

Ambient temperature, the temperature outside the device, also plays a role in the fans' responsiveness. If the ambient temperature is high, the fans turn on sooner and run faster.

Racing

If you hear the fans in your Mac Pro running at full speed and you aren't performing any intensive tasks, check the enclosure. Make sure that your Mac Pro is locked and fully seated, or that the top cover or access door is closed and locked on rack-mounted models.

Make sure the vents on your Apple product aren't blocked

Some Apple products have vents that let fans bring in cool air and expel hot air. Make sure that the vents aren't blocked to allow your device to perform at its best.

  • Apple TV 4K has a fan and a vent at the bottom.
  • Airport Extreme and Airport Time Capsule have fans and vents at the bottom.
  • iMac has vents along the bottom edge and on the back.
  • iMac Pro has vents along the bottom edge and on the back.
  • Mac mini has vents at the bottom to bring in cool air from beneath the device and vent hot air from the back.
  • Mac Pro has three fans on the front of the computer and vents on the front and back.
  • MacBook Pro has vents along the side and on the back. MacBook Air computers have vents along the back near the clutch.

The surface your device rests on can block its vents, affecting fan behavior. If you use your device on a soft surface like a couch, pillow, bed, or your lap, its fans might run more. Using your device on a hard, flat surface like a table or desk is best for temperature control.

Learn more

If the fans in your Mac run fast even when it isn't experiencing heavy usage and is properly ventilated, you might need to reset the System Management Controller (SMC) on your Mac. If you're experiencing this issue on an Apple TV 4K, Airport Extreme, or Airport Time Capsule, unplug the device, then plug it back in.

Learn more about the operating temperature of Apple notebook computers.

To go with my collection of default Mac OS X macOS wallpapers in 5K resolution, I’ve gathered the wallpapers that shipped with Mac OS 9 and re-worked them to modern-day sizes.

Most of them are very 90s, just like Apple’s hardware at the time.

Golden Edge Racing Mac Os Update

Sponsored by Rogue Amoeba

Rogue Amoeba is proud to sponsor the 512 Pixels Wallpaper and Screenshot Library. We’ve been making high-quality native MacOS audio software since this was cutting edge, way back in 2002. If you need to do anything with audio on your Mac, Rogue Amoeba can help.

Visit our site to check out all our great audio utilities.

Blue Dalmation

Blueberry Oxygen

Blueberry Union

Bottles

Capsule

Flower Power

Golden Poppy

Grape Gravity

Grape Mission

Edge Racing Flik Wheels

Lime Horizon

Golden Edge Racing Mac Os X

Lime Sharp

Mac OS Background

Quantum Foam

Golden Edge Racing Mac Os X

Shutters

Strawberry Parabola

Strawberry Baby

Tangerine Fusion

Tangerine Melt

Tub

Golden Edge Racing Mac Os Update

UFO 1 & 2

Become a member of 512 Pixels. Support projects like these, receive exclusive content in the monthly newsletter and enjoy advanced screenings of my YouTube videos.