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Humans sweat, pants and laptops spin fans to keep them cool. Unless you have the tiny fanless MacBook ($ 1,249 on Amazon Marketplace) then your MacBook Pro ($ 1,789 on Amazon.com) or MacBook Air (793 $ on Amazon Marketplace) will occasionally turn on its cooling fan to keep its thermals in check. If your Mac's fan has gone from turning occasionally to turning regularly and loudly, here's how you can slow down your rolling (or hiss, so to speak).
Check Applications and Tabs
The more browser apps and tabs are running, the more likely your Mac will need to use its fan to keep it running. things cool. Reduce your multitasking by closing applications when you're done using them, especially when using graphics applications like Photoshop and iMovie.
To see which applications are using the most CPU resources, open the Activity Monitor and click on the CPU tab. From my experience, Chrome is more of a resource than Safari, so you can try changing browser to a quieter web browsing experience (and good news, Safari gets favicons!) I also use my iPhone ($ 800 at Cricket Wireless) to play music and podcasts with iTunes and Spotify instead of keeping these apps running on my MacBook Pro
Capture d & Screen of Matt Elliott / CNET
Keep the vents clear
The MacBook Pro has vents on the sides and on the back, and the MacBook Air has vents along its back edge. These vents suck in fresh air and expel warm air. If you block these vents by putting your laptop on a knee, sofa cushion, pillow, bed or blanket, your Mac will warm up quickly. I'm using a coffee table book to keep my MacBook Pro vents clear by sitting on a couch or lying in bed.
If one has the impression of having picked up a pile of dirt along the vents, you can try to blow it with a bomb of compressed air. Of course, you run the risk of just blowing debris further into your Mac. If that seems to be the case, then you will have to open your Mac to go under the hood.
Open and Clean
Get a small Phillips screwdriver and you can remove the bottom panel of your MacBook to clean up the dirt, dust and grime accumulated over the years. Use your can of compressed air to remove any debris or lint-free cloth to wipe it clean. Pay special attention to the cooling fan itself and its vents, as well as the entire rear edge of your MacBook. The goal here is clean passages for maximum airflow.
Watch it:
We did a rotation around the MacOS Mojave public beta and here we go …
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Test your fans
It is possible that the reason for overheating your MacBook is that there is a problem with the fan itself. Cooked in your Mac is a hardware diagnostic tool. If it was created before June 2013, you will use the Apple hardware test. After this date, you will use Apple Diagnostics.
These tools work the same way. With your MacBook plugged in and any external devices removed, restart it and hold down the D key to start one or the other diagnostic program.
Follow the instructions on screen to start the test. The standard test only takes a minute or two to complete and signals any hardware problem. For further investigation, you can check a box to run an extended test that will take an hour or more to complete.
See the Apple Support reference codes page that may appear in the Test Results section after completing the test. . There are three codes, all starting with "PPF", related to the cooling fan. If any of the results indicate a problem with your fan, contact Apple Technical Support or go to the nearest Genius Bar for repair.
Reset SMC
If your Mac is clean and dirty free and you keep your applications and tabs in check and the fan still runs frequently and loudly, then 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 cooling fan. Follow Apple's instructions to reset the SMC
Read more: Everything you need to know about MacOS Mojave.
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