Smc fan control settings mac pro3/17/2024 ![]() Necessary cookies are absolutely essential for the website to function properly. Reattach the power cables and start Mac as usual Related Posts Press and hold the power button for 5 seconds ![]() Release all the keys, then press the power button again to start your Mac as normal. Hold these at the same time for 10 seconds. For MacBook Pro models released mid-2009 to 2017 and MacBook Air models released in 2017 or earlierįirst shut down your Mac, then on your keyboard hold down: Left Shift, Left Control, Left Option and the Power Button For MacBook Pro and MacBook Air models released in 2018 or later with T2 chipįirst shut down your Mac, then on your keyboard hold down: Left Control, Left Option, Right Shift, and the Power Button If your Mac doesn’t respond when you press the power button even if it’s plugged in, shuts down unexpectedly or is generally running slowly, you can try reset the SMC. The SMC or System Management Controller, is responsible for controlling the power button, battery, temperature control of internal components, keyboard backlight, video sources, fan speed, and various status indicators.
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