dedwards wrote:Nubo wrote:I guess the thing that's confusing me is the 3 available power-on sounds are extended multi-tone effects, not a "bong".
You can hear it in the first second of the video. Just before it plays the multi tone startup sounds.
That's not "before"; it is the beginning of the default startup sound. It might be worthwhile to change the startup to one of the other options, and see if the mystery sound changes along with it.