Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.

You might need to wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up.

Then press and hold the key combination after pressing the power button to turn on your Mac. If you can't shut down, press and hold the power button for up to 10 seconds, until your Mac turns off.

If you can't get a key combination to work when restarting your Mac, shut down your Mac first.

Press and hold all keys in the combination together, not one at a time.

With Pro version you get extra features (custom fan presets), priority customer support and confidence in future updates and improvements.

Under 'Control' click 'Custom' and you can then use a slider to change the fan control on your Mac'.

Launch the app and you will then have access to the fans and be able to see the temperatures of the components inside your Mac.

Download and install Macs Fan Control from MacUpdate.

Works on all Macs, both Intel & Apple Silicon.

Solve noise problems such as those caused by iMac HDD replacement.

Solve overheating problems like those found on a MacBook Pro.

Real-time monitoring of fan speeds and temperatures.

Control fan speed in relation to a temperature sensor (e.g., 3rd party HDD).

Set any constant value to any fan (e.g., minimum).

Software solution to noise problems such as those caused by iMac HDD replacement, or overheating problems like those found on a MacBook Pro.

Macs Fan Control allows you to monitor and control almost any aspect of your computer's fans, with support for controlling fan speed, temperature sensors pane, menu-bar icon, and autostart with system option.

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