@Nick_te_Lindert all fixed & implemented! 
How to enable powersaving on Elive (new cpu's):
apr --purge laptop-mode-tools
api laptop-mode-tools
Then, reboot the computer and check your cpu frequencies (for example in conky), unplug your AC cable, check them again
It is actually configured to (again, for new cpu's):
- On AC: full power
- On Battery: between 0 % and 40 % of cpu power
maybe 40% is too much? 
on battery we really want to save the battery and these computers works already pretty good, comments welcome!
I will be happy to know these comparisons with elive (with the powersavings working of course)
So, next version 3.7.13 will include a good powersaving working on new cpu's 
thanks @Nick_te_Lindert for the reports
