Quote Originally Posted by trt740 View Post
my current setting are cpu 1.475v
n/b 1.4v
s/b default
cpu-n/b 1.4v

running n/b at 2800 and cpu at 20x200=4.0ghz

Thx for the help shouldn't I leave the n/b voltage at 1.4v because of my n/b speed being set at 2800? I changed the s/b voltage as you suggested and for some reason my thuban need more CPU voltage than most to hit 4.0ghz. I think thx max voltage is 1.5v but I'm not sure.
I think that for high NB clocks, most important is CPU-NB VID not NB voltage.

Beepbeep is right. You may lower your NB & SB voltages, not very good and not gaining anything actually having them in 1.4V. Top 1.25V should be fine.