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3 beeps at startup

On a MacBook Pro I get 3 beeps at startup which usually indicates as problem with the RAM. But once I've got the Mac booted up everything looks and feels like it does usually. So what's really going on here?

MacBook Pro 15", macOS 10.15

Posted on May 12, 2020 8:08 AM

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Posted on May 12, 2020 8:51 AM

curly1 wrote:

On a MacBook Pro I get 3 beeps at startup which usually indicates as problem with the RAM. But once I've got the Mac booted up everything looks and feels like it does usually. So what's really going on here?



Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379


Try resetting the SMC https://support.apple.com/en-us/HT201295


About Mac startup tones - Apple Support


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1 reply
Question marked as Best reply

May 12, 2020 8:51 AM in response to curly1

curly1 wrote:

On a MacBook Pro I get 3 beeps at startup which usually indicates as problem with the RAM. But once I've got the Mac booted up everything looks and feels like it does usually. So what's really going on here?



Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379


Try resetting the SMC https://support.apple.com/en-us/HT201295


About Mac startup tones - Apple Support


3 beeps at startup

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