Know how to fix kernel_task CPU usage issue on your MacBook.
What is kernel_task?
kernel_task manages the temperature of your CPU, which limits its resources to applications that are using it intensively. The CPU usage will decrease as soon as kernel_task reduces its activity.
Why Did It Happen?
- The CPU fan is dirty, dusty, or the exhaust is blocked. Have a compressed air blown on air vents to clean out your fans.
- You work in a hot environment. Use your Mac in a cool and well-ventilated area.
Dust removal and other hardware-related issues are best done by experts. If you are not familiar with the hardware of your Mac, it is best to bring it to the Apple Service Center near your area.
What Should I Do Next?
- Quit all open windows and applications open in the background.
- Remove all external connections.
- Reboot your computer.
Reset SMC and NVRAM
If your Mac is still running slow after reboot, try to reset the System Management Controller (SMC) and the Nonvolatile Random-Access Memory (NVRAM).
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