Did Jango know about the true purpose of the chips? That it will turn the clones into ‘mindless machines’? Or he was he just told the same thing about «making them less violent»?
I don’t
think Jango knew about the truth purpose of the chips. I don’t remember ever
reading about it so I could be wrong, but, imo, it doesn’t make much sense for
Dooku to share all his plans with one of his pawns. Jango was picked for his ability
to kill Jedi and he knew his clones would eventually do just that but I’m not
sure he knew about the chips or how it would all work out.
Jango knew
they clones would be used to destroy the Jedi order so I don’t think lies such “we
just want to make them less violent” would be necessary or even believably to
his ears.