Resetting the System Management Controller (SMC) on a Mac can resolve various hardware and power-related issues, from battery charging problems through to power management. We’re going to look at how you can do this on Macbook Pro & Air.
Resetting SMC on MacBook with Apple Mac Chip
The good news for users with a newer Macbook that uses an M1, M2 or M3 chip (an Apple Mac chip) is that there’s no way to manually reset your SMC on these devices.
This is because on newer Macbooks using this chip do not actually use a System Management Controller in their device. All the previous responsibilities that were fulfilled by the SMC are integrated into the CPU.
So in this scenario, the best thing for you to do is simply restart your Macbook.
Resetting SMC on Older MacBook Models
On older models of Macbook that use an Intel processor, you can reset the SMC to resolve some issues.
- Shut down your MacBook.
- Connect the power adapter.
- Press and hold the left Shift, Control, and Option (Alt) keys along with the power button simultaneously for 10 seconds.
- Release all keys and the power button simultaneously, then press the power button to turn on your MacBook.
After doing this, you will find that your System Management Controller has been reset, and hopefully you
What are some common issues caused by SMC errors?
System Management Controller (SMC) errors on Mac computers can lead to a variety of issues, primarily affecting the hardware functions and power management of the device.
Some common problems caused by SMC errors include:
- Power Issues: These can range from unexpected shutdowns, failure to turn on, or problems with sleeping or waking up. In laptops, you might notice that the battery doesn’t charge properly or the indicator behaves erratically.
- Thermal Management: The SMC is responsible for controlling the thermal management system. Errors can lead to fans running at high speeds without a significant increase in CPU load or, conversely, fans not activating when they should, leading to overheating.
- Performance Issues: You might experience slower performance due to the SMC not managing the system’s resources effectively. This could be particularly noticeable during high-performance tasks.
- Peripheral and Port Issues: Problems with recognizing or managing external devices connected through USB, Thunderbolt, or HDMI ports can also be a sign of SMC issues.
- Audio Problems: The SMC can sometimes affect audio output, leading to no audio or distorted sound from internal speakers or connected audio devices.
Resetting the SMC is a potential fix but should be approached as a troubleshooting step after basic software troubleshooting methods have been tried.
By following these steps, you can effectively reset the SMC on your Mac, potentially resolving various hardware and power-related issues.