HT204311: About the power tone your MacBook makes when you plug it in
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Q: I have tried disconnecting my MacBook from the charger but this doesn't make any difference, it still makes the whirring sound whe ... I have tried disconnecting my MacBook from the charger but this doesn't make any difference, it still makes the whirring sound when I plug it back in. more
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Helpful answers
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Sep 28, 2016 4:06 PM in response to dadsieby jeremy_v,Hi there dadsie,
It sounds like you are unable to plug in the power adapter for your MacBook Pro without some sort of whirring sound coming from the computer. If this is something coming from the speakers, I would reset your SMC first:
Reset the System Management Controller (SMC) on your Mac
If that does not do it, can you elaborate as to whether or not this sound is indeed coming from the speakers or is it coming from a particular section of the computer and seems physical? Thank you for using Apple Support Communities.
