I spend some more time in the morning today changing the settings trying to have some dynamic voltage. I also discovered that there are epu settings in AI suite II but they don't change anything.
If i enable the epu and voltage downgrade (i assume that might be the function i am searching for) nothing changes the voltage remains the same at 1.32. My machine is stable at 1.32v with a multiplier of 42. I was really impressed with the Asus p9x79 pro and this is why I convinced everybody to go with rampage mAtx to save space. As I understand ROG is not tailored for energy efficiency or i miss something in bios settings.
My settings so far
I tried AI overclock Manual and Auto
multiplier 42
blck 100
ram at stock 1.5v 1600mhz (doesn't affect our performance much ~ 0.4%)
vcore A. I tried offset and i tried manual too ... i believe that between 1.32 and 1.33 p95 reports no problems. I also tried auto too in both settings.
Cpu power phase control i used asus optimised and tried also auto
Cpu LLC i tried a few different settings from 110% to 140%. now it is in auto.
Power duty control i tried extreme and t.probe.
speedstep is on
turbo is on
power limit control is auto
cpu states are auto (but i tried enabling all too)
Whatever i do the voltage remains the same... Sometimes it becomes unstable too.
The machine i am working on now has a
RG4 bios 4804
16GB ram Corair vengeance 1600 1.5v 4x4gb
3960x
SSD 256gb and 3 TB HD x2 (no raid)
1000w silverstone strider 80% plus silver ( it worked properly on another machine but it is a bit old.)
H100i on an aerocool dead silence cube case.
I have another two machines with RG4 and 3930k but I am trying to fix this one first and see what happens with the others. Is it possible that AI suite II causes a problem should i uninstall it. I am a bit concerned what takes priority in the settings is it the bios or AI suite ?
For example if i eneable EPU in Ai suite it doesn't appear in the bios as enabled, I assume that it gets in software mode ... not that it works but i am just saying.
Asus Rampage Gene IV - 3960x 4.2 Ghz - EVGA GTX 680 4GB FTW - Quadro 4000- 16GB 4x4 corsair Vengeance 1600mhz - SSD Samsung pro 256gb - 3TB barracuda - 1000w Silverstone Strider - H100i cooling on a Black Aerocool Dead Silence case. Windows 8.1 pro