How to set up GTL Ref Values for 45nm & 65nm

[mikeyakame]

Hi Mike, thank you for all the information thus far, I've finally gained some better understanding on VTT and GTL. All other articles I've come across are either vague or utterly confusing.

So based on what I've read here, my settings should be:

CPU vCore: 1.475v
CPU PLL: 1.58v
CPU GTL Ref: 1 / 1.475 = x0.67
NB: 1.49v
VTT: 1.48v
NB GTL: 0.80 / 1.48 = x0.57

Am I correct? Thanks!

try 1.46/1.48v vtt with 0.63 - 0.65x for cpu, and nb try 0.61-0.63x
you'll just have to find the sweet spot for your fsb frequency and your particular board.

normally i find if i use the right vtt voltage, then i can just set 0.65x for cpu and 0.63x for nb!