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The option of play sound on startup i can't find it in sound system preferences
MacBook Pro 13″, macOS 10.13
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
That showed up in MacOS 11...
Turn the Mac startup sound on or off - Apple Support
Try this in Terminal...
How to Disable the Boot Sound (or “Startup Chime”) on a Mac (howtogeek.com)
not working
startup sound
