My Xbox 360 briefly revs up when I shut down?

My Xbox 360 sometimes goes full throttle when I turn it off, does anyone know what that can be?

I'm grateful for every answer

I don't know how old your xbox is, but it is the same with me.

Mine is now a good 7 years old and it could be related to age.

One option is maybe that she just pulls all the strength together and turns it out. (So everything ended) (Do you understand what I mean?)

I know I couldn't really help but I hope that it did a little bit; -;