Quote Originally Posted by Effet View Post
How can it possible to have different GTL Ref voltages on cpu 0/1 and 2/3 when GTL voltages are derived from CPU VTT? That's not making sense dude :P

Read this to undersand GTL voltages better: http://edgeofstability.com/articles/Article.html
Each GTL setting in the BIOS has it's own opamp. The input of each opamp is tied to VTT. The value set in the BIOS determines the output of each amp.

@ Big Lar
Thank you. Just trying to help out somewhat. No sense all of us having to bang our heads against the wall if it can be helped.