Loud beeping sounds

About once per day for the last few days my MacBook Pro makes 3 very loud beeping noises, almost siren-like. Nothing else happens, nothing slows down, but it sounds like some sort of warning.

MacBook Pro 13", macOS 10.14

Posted on Mar 19, 2019 10:45 AM

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Posted on Mar 19, 2019 10:49 AM

  • Three successive tones, then a five-second pause (repeating): RAM doesn't pass a data integrity check. If you recently replaced or upgraded your computer's RAM, check to see if it was installed properly. If the issue continues, contact Apple Support.


About Mac startup tones - Apple Support

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Loud beeping sounds

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