Mac notebooks comply with all temperature limits that are set in national and international safety standards. Make sure to follow the user guide instructions regarding safety and handling.
Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Thermostats work with line-voltage HVAC systems. Each January for the past 19 years, more than 400 senior logistics, supply chain, warehousing, QA and RA experts from the pharmaceutical industry have gathered at the Temperature Control and Logistics Forum for the largest, longest running and most operationally.
Mac notebooks have sensors that detect temperature changes inside your computer. If your Mac notebook has fans, they turn on automatically to cool critical components.
Here are some tips to manage the operating temperature:
If your Mac notebook gets warm even when it isn’t doing tasks that require intensive calculations, or if it has fans that run for a long time, use Activity Monitor to check CPU activity. Look for malfunctioning processes that can put a significant load on the CPU, and check whether Spotlight is indexing your hard drive. You might also need to reset the System Management Controller (SMC) on your MacBook.
If you use third-party apps that measure the temperature of your notebook computer, it’s important to understand that they don't measure the external case temperature. The case temperature is much lower. Never use third-party apps to diagnose possible hardware issues.
If you have issues with your Mac notebook’s operating temperature, contact Apple. Or visit an Apple Retail Store or Apple Authorized Service Provider.
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.
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.
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.
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.
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.
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.