CPU running too high

Discussion in 'MacBook Air' started by mikaelmaenpaa, Aug 20, 2016.

  1. mikaelmaenpaa macrumors newbie

    Aug 20, 2016

    My CPU is running straight from boot 65 to 85 % and slows down everything.

    I have already tried to reset SMC but didnt work out.

    I found this trick on this forum..

    " 1. Go to About this mac under the apple in the upper left and click on More info
    2. Click on system report
    3. make a note of what it says after Model Identifier
    4. go to your master drive – System -Library – Extensions – IOPlatformPluginFamily.kext -Contents – Plugins – ACPI_SMC_PlatformPlugin.kext – Contents – Resources – find the name from step 3 and move it to a folder that you can find again if needed.
    3. Restart and you’re done "

    but i dont have my model identifier file (macbookair6,2) on the list, it goes only far as macbookair4,2
    There is file macbookpro6,2 and deleting it didint help.

    So, any other tricks :)
  2. JTToft macrumors 68040

    Apr 27, 2010
    Aarhus, Denmark
    Are you sure you don't just have some software which consumes a lot of CPU ressources? Check your log-in items and Activity Monitor.
  3. Rok73 macrumors 65816


    Apr 21, 2015
    Planet Earth
  4. Mrbobb macrumors 601

    Aug 27, 2012
    Do you have an attached external HD that it's trying to index?
  5. keysofanxiety macrumors G3


    Nov 23, 2011
    You could simply restart with 'reopen windows when logging back in' unticked and see if the issue persists. Reopening background tasks/applications on login can cause high resource usage.

    I know it's the simplest of troubleshooting, but worth a try if you haven't already :)

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