Maybe someone can help me out, some guys think I have way to much Vcore for the settings I am running here they are

400x9
Vcore @ 1.5875 This is the lowest I can get the cpu stable
FSB termination voltage lowest
NB Vcore 1.3
SB sata lowest
SB chipset voltage lowest

I have tried a lot of different setting's, higher FSB T voltage, higher NB vcore with a lower CPU vcore all makes no difference

Is it that my CPU just needs that amount of Vcore ?