fans run loud randomly when starting up laptop

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Level 1

9 points

fans run loud randomly when starting up laptop

I got the new MacBook Pro 13 inch with Touch ID, I've had this computer for about 2 months with no problems. But yesterday my fans started to run fast on start up. But it's not every time I boot up, its random. my computer is always on a lap desk so there is nothing blocking the vents, I even blew compressed air onto the vents to make sure that there was no dust or anything that could be causing it. Does anyone have any ideas how I can fix this? I usually just restart my computer and usually that fixes it

MacBook Pro 13", macOS 10.15

Posted on Oct 24, 2019 8:11 PM

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Answer 1

Top-ranking reply

raghav.kapur5

Level 1

29 points

Oct 25, 2019 4:05 AM in response to LadyShinyori

Try doing an SMC and NVRAM reset.

According to Apple, "The SMC is responsible for these and other low-level functions on Intel-based Mac computers:" incuding thermal management.

A suggested reason to reset the SMC is: "Your computer's fans run at high speed, even though it isn't under heavy usage and is properly ventilated."

Instructions to reset the SMC are available at:

How to reset the System Management Controller (SMC) on your Mac - Apple Support

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Answer 2

Oct 26, 2019 12:26 AM in response to LadyShinyori

Could have been a software issue in Catalina then, if you encounter it again, I'd suggest that you do an SMC and NVRAM reset.

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Answer 3

LadyShinyori Author

Level 1

9 points

Oct 25, 2019 6:57 PM in response to raghav.kapur5

Thank you for your reply. I actually reset my computer back to it's original Mac OS and things seem to be better. So I am under the impression it has something to do with the new OS update

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Answer 4

LadyShinyori Author

Level 1

9 points

Oct 26, 2019 10:26 AM in response to raghav.kapur5

I tried all the resets I could find through apples website and none of them worked. I'm going to wait a couple months before updating to Catalina again, to see if maybe the release any patches. I don't want to keep having to update and then downgrade due to software issues.

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fans run loud randomly when starting up laptop

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