If you have done a logic board replacement, you can reset your Mac's SMC. You may also use this as a first-aid measure if you’re having power issues with your Mac.

Follow these steps for:

  • iMac
  • Mac mini
  • Mac Pro
  • Xserve.
    • Shut down your Mac.

    • Unplug the power cord.

    • Wait 15 seconds.

    • Plug the power cord back in.

    • Wait five seconds, then press the power button to turn on your Mac.


The SMC of your Mac has now been reset.

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