mac-fan

A small collection of utilities to control your Macbook fan speed.

Rationale

My Macbook Pro 16-inch, 2019 (MacBookPro16,1) gets super hot 90% of the time due to the bad design of the airflow on this HW. To solve the problem, Apple seems to be throttling the CPU rather than spinning up the fans.

To not throttle the CPU and use the Macbook Pro without lags, the scripts in this project will help you set the fan speed of your Macbook manually.

Requirements

• smcFanControl (brew install --cask smcfancontrol)

Examples

MacBookPro16,1

Check the current fan speed

./mbp16-2019/get.sh

returns:

F0: 5000 (1836, 5297)
F1: 5000 (1700, 4905)

Set fan speed

Specific RPM

./mbp16-2019/set.sh custom 5000

Return to auto

./mbp16-2019/set.sh auto

Max (WARNING!)

Setting your fans to max will set them to a faster speed than the SW limit thanks to an integer overflow bug (?). This might void your warranty, but might also be the only way to quickly cool down your MacBook / generate a loud fan noise.

./mbp16-2019/set.sh max