Okay I hate to say this but on three separate occasions I've decided I would try and get my head around it and set my GTL reg values to break the 4GHz on my Q9550 and get stable (Prime95 overnight blend stable but tend to get random freezes when gaming/browsing/idle) but I just get lost >.<.


I've understood the math behind it, but my problem is I have everything set to Auto except Vcore (1.4V in BIOS, 1.36V CPU-Z) and NB/SB (1.5V / 1.5V).
Current setup: Asus S2E w/ Q9550 @ 3.966GHz (1866FSB) - 1x2GB DDR3 1600MHz 7-7-7-20 (Need to RMA other module, doesn't pass memtest).
Other than the ram values set to spec and the voltage I've already mentionned, everything is pretty much on auto.

What VTT value would be a good one to start off with if I set it to manual? What's considered a maximum for a 45nm quad? Without this starting point I can't aim to optimise my GTL Ref values.
Any additional S2E/Q9550 info that one may know would also be appreciated

Considering I got this far with only touching Vcore and NB voltages I would assume I could break 4GHz, my goal being a FSB of 1920 .