Fix Fan Noise & Overheating After Upgrading Mac OS with an SMC Reset

Check tutorial of Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset

So after a lot of requests from our users here is a guide about Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset.

A fair number of users report that upgrading from Mac OS X has caused their Macs to run hotter in general and their fans are constantly on the go, causing excessive and unusual fan noise. For users who have just upgraded from 10.6, 10.7 or 10.8, this is usually due to Spotlight and the mdworker & mds process combination, which iron itself over the course of an hour or so.

If waiting for the wait didn’t fix the heat and fan noise for you, or if those Spotlight processes aren’t running, you can try resetting the System Management Controller or SMC. This seems to be especially effective for MacBook Pro and MacBook Airs that get warm with significant fan noise after installing OS X.

Fix Fan Noise & Heat in OS X by resetting SMC

For MacBook, MacBook Pro and MacBook Air models with internal batteries:

  • Turn off your Mac
  • Connect the MagSafe adapter
  • Hold down Shift + Control + Option + Power button at the same time
  • Release all keys and buttons simultaneously
  • Press the force button to turn on your Mac as usual

Apple notes that the small LED light on the MagSafe adapter can change color or state, or even turn off briefly when you reset the SMC, which can be an easy way to see if it was done successfully.

This tip was recently left in our comments and several readers have responded or emailed us with positive results. To further support the solution, Apple’s support document cites the following as the primary reason for resetting the SMC: “The computer’s fans run at high speed even though the computer is not being used intensively and is well ventilated.

Resetting the SMC is quite common trick to fix some of the more quirky power and battery related issues on a Mac, and in many cases it works. If all else failed then give this a try, it may fix your heat and fan noise issues after updating OS X.

Note: Each time the SMC is reset, you normally lose custom power settings, so be prepared to go back to System Preferences to adjust Power Saver settings again.

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Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset: FAQ

Tutorial Summary: Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset

In this guide, we told you about Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset; please read all steps so that you understand Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset in case if you need any assistance from us, then contact us.

How this tutorial helping you?

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What is actual time in which this method complete?

The time to complete the Fix Fan Noise & Overheating After Upgrading Mac OS X with an SMC Reset tutorial is 10+ minutes.

What are the supported Device?

Apple

What are the supported Operating system?

mac OS


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