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How to reset the SMC, PRAM and NVRAM on an iMac Pro

  1. How to reset the SMC, PRAM and NVRAM on an iMac Pro, SMC reset Part 1: stap 1, afbeelding 1 van 1
    • Choose Apple menu > Shut Down.

    • After your Mac shuts down, press and hold its power button for 10 seconds.

    • Release the power button, then wait a few seconds.

    • Press the power button again to turn on your Mac.

    • If that did not solve the issue, move on to Step 2

  2. How to reset the SMC, PRAM and NVRAM on an iMac Pro, SMC Reset Part 2: stap 2, afbeelding 1 van 1
    • Choose Apple menu > Shut Down.

    • After your Mac shuts down, unplug the power cord.

    • Wait 15 seconds.

    • Plug the power cord back in.

    • Wait 5 seconds, then press the power button again to turn on your Mac.

  3. How to reset the SMC, PRAM and NVRAM on an iMac Pro, PRAM and NVRAM reset: stap 3, afbeelding 1 van 1
    • Shut down your Mac.

    • Then turn it on and immediately press and hold these four keys together: Option, Command, P, and R.

    • You can release the keys after about 20 seconds, during which your Mac might appear to restart.

    • You can release the keys after the Apple logo appears and disappears for the second time.

    • You must have a wired keyboard made by Apple in order for this to work.

    • You can buy one from Amazon here.

Conclusie

If you have tried all of these resets and still have problems, head on over to our Answers Forum!

10 andere personen hebben deze handleiding voltooid.

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Lid sinds: 08/28/18

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2Gids Commentaar

one of my thunderbolt ports stopped working. I used the SMC and PRAM reset and they all worked afterwards. thanks!

Admin User - Antwoord

Wanted to link the official Apple guide for NVRAM (or PRAM) and SMC resets as well, in case it's helpful to others. I always have trouble finding them from a search engine for some reason.

Reset NVRAM on your Mac

https://support.apple.com/en-us/102539

Reset the SMC of your Mac

https://support.apple.com/en-us/102605

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Daniel Cassel - Antwoord

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