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Home / Tips and Tricks / Your loud MacBook fan sounds like it's ready to take off. Here are 5 ways to fix it

Your loud MacBook fan sounds like it's ready to take off. Here are 5 ways to fix it



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Your fan is there to cool your MacBook, but sometimes it can get too damn loud. Sarah Tew / CNET

If your MacBook's fan has been running too long and too often, you may have a problem. For the most part fans are part of the laptop life. People sweat, dogs pant and laptops usually turn fans to stay cool. Unless you have the small, fanless MacBook you MacBook Pro or MacBook Air will occasionally start its cooling fan to control its thermal. But the fan of your Mac has changed from running from time to time and running loudly, you'll want to slow down the role (or buzz it, as it were).

There are five proven ways to do this, and you may have to go through all these steps until your fan finally comes to rest. Whatever you do, don't ignore the problem. Take some time to really focus on the health of your fans and you will still get a lot of quality life out of your MacBook ̵

1; without it sounding like you're at the airport.

Check your apps and tabs

The more apps and browser tabs you have, the more likely your Mac will have to use its fan to keep it cool. Reduce your multitasking by closing apps when you no longer use them, especially when you use graphic-intensive apps such as Photoshop and iMovie.

To see which apps use the most CPU resources, open the Activity Monitor and click the CPU tab. In my experience, Chrome is more a source of resources than Safari, so you could try switching browser for a quieter experience on the web (and good news, Safari gets favicons!) I also use my iPhone at Amazon) to play music and podcasts with iTunes and Spotify instead of making those apps work on my MacBook Pro.

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Screenshot by Matt Elliott / CNET

Keep ventilation openings free

The MacBook Pro has ventilation openings on the sides and back, and the MacBook Air has ventilation openings on the back. These vents draw in cool air and expel hot air. If you block these vents by letting your laptop rest on a lap, sofa cushion, pillow, bed or blanket, your Mac will certainly heat up quickly. I use a coffee table book to not obstruct the ventilation openings of my MacBook Pro when I am sitting on a couch or in bed.

If it seems like a lot of dirt has accumulated along the ventilation openings, you can try blowing it away with a can of compressed air. Of course you run the risk that you just blow the debris further into your Mac. If that seems to be the case, you need to open your Mac to get it under the hood.

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Opening and Cleaning

Purchase a small Phillips screwdriver and you can remove the bottom panel of your MacBook to remove dirt, dust, and dirt that has accumulated over the years. Use your compressed air canister to blow away any dirt or a lint-free cloth to wipe it away. Pay particular attention to the cooling fan itself and the ventilation openings, along with the entire back of your MacBook. The goal here is clean passages for maximum air flow.

Test your fans

There is a chance that the reason that your MacBook overheats may be wrong with the cooling fan itself. A hardware diagnostic tool is built into your Mac. If it was made before June 2013, use the Apple Hardware Test. After that date you will use Apple Diagnostics.

These tools work in a similar way. After your MacBook is connected and all external peripherals have been removed, restart them and hold down the D key to start either & # 39; s diagnostic program.

Follow the instructions on the screen to start the test. The standard test only takes a minute or two and will report all hardware issues. For a more thorough investigation you can check a box to perform an extensive test that lasts an hour or more.

View this Apple Support page with reference codes that may appear in the Test Results section after the test is completed. There are three codes, all starting with "PPF", related to the cooling fan. If you get one of the results indicating that there is a problem with your fan, it's time to contact Apple Support or go to your nearest Genius Bar for repair.

Reset the SMC

If your Mac is clean and dirty-free and you keep your apps and tabs under control and the fan is still running regularly and loudly, try resetting the System Management Controller (SMC). The SMC is responsible for controlling low-level functions on your Mac, including "thermal management", also known as the cooling fan. Follow Apple's instructions for resetting the SMC.

This story is regularly updated with new information.


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