My Mac Air sounds like fan turned on

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My Mac Air sounds like fan turned on

My computer suddenly started to sound like a fan was on. It got quite loud and was warm.

I am using an external monitor and was on WebEx. I had a PowerPoint loaded, and it was when I was viewing the PowerPoint that this started to happen. I shut off the video from WebEx, and quickly grabbed a flashdrive to back up!

All seems well now.

I've used PP when webconferencing and have never had this happen before.

Thoughts?

D.

MacBook Air (13-inch Mid 2012), OS X Mountain Lion (10.8.5)

Posted on Jan 9, 2014 12:32 PM

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Answer 1

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PlotinusVeritas

Level 6

14,872 points

Jan 9, 2014 12:37 PM in response to donnastewart

Normal

If you only hear it in a quiet room, that is normal.

noisy fan reasons:

A: you notice it more in a quiet room (the typical case) which is normal, all is AOK

B: fuzz and dust has caked onto the blades causing the fan hub to get off balance and make a buzzing sound.

C: fan rotor is going bad and making a whirring or buzz noise (rare).

D: Fan is spinning up due to excess heat from gaming, heavy graphics (typical, all is OK)

A and D are normal

B and C are not.

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Answer 2

donnastewart Author

Level 1

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Jan 9, 2014 12:42 PM in response to PlotinusVeritas

Sounds like D, to me. So, okay to ignore.

Thanks.

D.

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Answer 3

Jan 9, 2014 12:48 PM in response to donnastewart

yes, perfectly normal. Especially noticeable in a quiet setting. 😊

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