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Processeur quad-core Intel Core i7 à 2,2 GHz (Turbo Boost jusqu'à 3,4 GHz), 2,5 GHz (Turbo Boost jusqu'à 3,7 GHz), ou 2,8 GHz (Turbo Boost jusqu'à 4,0 GHz) avec 6Mo de cache L3 partagé.

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kernel high cpu usage after speakers and trackpad change

Hi, I have a macbook pro 15" (ends 2013) and I have changed the speaker and trackpad, with a ifixit guide.

Before the change fans were ok and speed of the pc too. After, I am experiencing that fans are at maximum speed all time and mac is really slow doing a simple click.

I have reviewed all the connections and seemed ok.

Do you know what can be causing this issue?

Thank you very much!!

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@jotemo87, The CPU throttling down and the fans ramping up, is a classical symptom of one or more sensors that are not connected, damaged or removed from the system.

Could you have damaged some flex cable(s) or components on the logic board when doing this replacement?

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@jotemo87 You should run the built in Diagnostics in the Mac. Restart the Mac and hold down Option+D, that enters the onboard diagnostics mode. It will take time, but it should give you indications on what is missing or damaged.

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@geirandersen

I've tried "apple diagnostics" and says these two errors:

PFM006: There may be an issue with the System Management Controller (SMC).

PPN001: There may be an issue with the power-management system.

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@jotemo87 I think it’s time to open the Mac back up and inspect the flexes you touched VERY closely, preferably under high magnification. Check for tears or damage. Also check the areas near where you worked on those flexes, as you could have knocked loose or off component(s).

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Josep Maria Teixido Moreno sera éternellement reconnaissant.
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