When you press the power button to start up your Mac, you will be met with a boot chime that lets you know your system is healthy and ready to load OS X. However, this sound can be a bit intrusive, and there may be times when you would prefer to not have it play. Since sleep mode will not make such sounds when waking, you can always use it instead of shutting down your Mac; however, if you need to cold-boot your Mac, then you have a couple of approaches for muting that boot chime. Continue reading ⇒