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You could always plug a headphone jack into the port and start her up for a less permanent, hardware based solution.

Just an interesting fact: they changed this on the newer iMacs. When you plug something into the headphone jack it actually defaults to the internal speakers for the startup sound. I see the point in this: to keep people from being blasted away by their third party speakers that are plugged in that they forgot to turn down, but it also eliminates the use of this trick you are talking about.
 
If you have external speakers that use the audio in port, plug them out, lower the volume to mute, so then your internal speakers are in mute, and thats where the gong comes from, even if you have externals connected. Then plug in your external speakers, then set the volume to whatever you want, the startup gong will always be muted!!!
 
If you mute your speakers before shutting down your mac it should also mute the startup chime the next time you turn it on.

As far as I know this is the only way to mute it..

this doesnt work on my MacBook Pro Core Duo. does it only work on PPC Macs? i know the audio jack trick doesnt work on intel Macs.

I use MacPilot.

where is this in MacPilot? i dont see the option.
 
LMFAO at the really really really long dong.

Oh well, beats the ones in my programming class - seems half the people have their sound at full blast, and they fire their machines up from off just after class starts, then shut them down again afterwards!

That always drove me nuts. Don't people know about the sleep function?!
 
LMFAO at the really really really long dong.

Oh well, beats the ones in my programming class - seems half the people have their sound at full blast, and they fire their machines up from off just after class starts, then shut them down again afterwards!

That always drove me nuts. Don't people know about the sleep function?!

yes exactly i always put my mac to sleep. but restarting to play games in boot camp with a loud chime is pretty annoying especially to the rest of my household late at night.
 
You could always plug a headphone jack into the port and start her up for a less permanent, hardware based solution.

As someone mentioned, doesn't work on some of these newer macs (much to my dismay).

Wish they updated the sound!

Check out MacTracker, I think they have an option to play each Mac's startup sound. Not sure how comprehensive it is, but it's pretty good.
 
How do I stop the loud "Musical Note" Noise at Startup?

Hi - does anyone know how to stop / turn down the loud musical note that happens when you switch on the iMac - the one that comes on before the OS is launched - my iMac is right next to my daughters bedroom wall and its quite loud at night...

thanks!
 
I recommend start up sound. Its free and adds an icon to the system preferences as the person above says. You can choose the volume level, or just mute it all together!
 
yes on my old g5 imac headphone plugged in or mute sound would both work but on my shiny new intel imac they dont work

does the startup sound control panel app work properly with new intel imacs??sigh
 
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