Quote Originally Posted by nettwerk2006 View Post
Can you give an example for 65nm cpu, in your equations above you have their volts as the same, so no reference for me to figure which goes where.

given VTT = 1.35, vnb = 1.30
ok say ure using vtt 1.35v

so adjustment for gtl 1/4 is null

therefore u need to adjust gtl 0/3

so how much easy
1.35v x 0.667 = 1.35v x 0.635 + Y
Y= 1.35v( 0.667-0.635)
Y=0.0432v
= 43.2mv

i usually roundup.. so u should +45vm on gtl 0/2

havent really tested a 65nm quaddies on p45's but from experience in the past with other boards.. 65nm works best on gtl 0.667/0.67