RIP Mac startup chime

“In case you missed it: The venerable Mac startup chime died of unknown causes at age 32 in Cupertino,” Bob “Dr. Mac” LeVitus writes for Apple World Today.

“I was reminded of this while testing Darth iMac, the space-gray-and-black iMac Pro I borrowed from Apple for an upcoming review,” LeVitus writes. “Darth iMac was the first chimeless Mac I’ve used. And, I immediately noticed that I missed the chime.”

“Anyway, when I heard about the chime’s untimely demise,” LeVitus writes, “I put together this little memorial video of famous (and infamous) startup chimes through the years, along with some chimes of death and doom.”

Read more in the full article here.

MacDailyNews Take: Those who, like us, miss the startup chime, can bring back the Mac startup chime via the Terminal command.

To re-enable the startup chime, launch Terminal and execute the following command (paste the line below into the Terminal window, then press Enter):

sudo nvram BootAudio=%01

You may be asked to enter your administrative password.

If you prefer a chimeless Mac, execute the following command:

sudo nvram BootAudio=%00

Apple axes iconic Mac startup chime from new MacBook Pros – October 31, 2016


  1. Want the Startup chime again on 2016+ Mac? Follow this info:
    (so far confirmed to work on many models using Mojave or Catalina)

    Open Terminal
    Type sudo nvram StartupMute=%00
    Enter admin password and press enter (you will not see anything as you type)
    Restart Mac and enjoy.

    To disable, do anyone of these 4:
    – Type sudo nvram StartupMute=%01
    – Type sudo nvram -d StartupMute
    – reset PRAM on startup (press and hold CMD (⌘)-OPT(⌥)-P-R on startup)
    – turn off and pull plug on desktop Macs (not all models)

    Original (partial) source from Jan 2020:

    Does not give absolute date, only relative date of “1 month ago”.
    “SINdicate 1 point 1 month ago

    Wild guess: sudo nvram StartupMute=%100”

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