Why after starting up with an external drive just one time, has the start up chime on my internal now stopped working? External SSD is not plugged in now, but just using the MBP internal HDD normally 10.6.8, why did that happen, any idea?
Sounds like apple should offer a chime firmware update to enable it and allow users the option to switch it on or offThe chime is done by firmware, before it loads the OS from disk. Its volume is one of the parameters stored in NVRAM, which is why DeltaMac is suggesting resetting that. NVRAM is writable by the OS, so it's very possible a particular OS version could have changed that.