I have a DELL E4300 laptop with backbox 5/ubuntu installed on it, i'm trying to change the value of the voltage corrsponding to the cpu frequencies. I've read that lowering them a bit don't change the cpu power but make a major difference in terms of temperatures and battery lifetime.
The CPU is a Intel(R) Core(TM)2 Duo CPU P9400 @ 2.40GHz My bios is the lastest version available for this laptop : A23, and there is no option to manage the voltage in it.
Here are the voltage i would like to set instead of the old ones :
0.925V @ 800MHz
0.975V @ 1600MHz
1.025V @ 2000MHz
1.037V @ 2400MHz
This can be done on windows by a software named CPUgenie...
I've read a lot and what is often proposed is to change the maximum and lower frenquencies of the cpu to save or gain power with cpufrequtils or others..
To be clear I want to keep my frequencies, but change the voltage corresponding to each of them.
Thank you in advance!