GTL Ref Tweaking Guide

[saaya]

I mean some of the guides and forum threads ive read have been for ASUS 790i or have had more numbers in the equation, like the black ops stops at 0.740 but others go as high as 0.905 and TBH ive read that much its turned my brain to mush. I drive a chemical tanker truck for a living so going to work at 5am & tweaking this board till 12pm is making me sleep deprived lol. Im still hoping for a simple if you put VTT @ x volts you need to set GTL's to + whatever
What quadcore are you going to use?

ive seen those settings, and those 0.905 settings are actually the voltage, not the ratio afaik.
and sure, id like to shed some light on this as well to make gtl ref tweaking easier
just be patient and ill continue to udpate this thread with my findings

ill try as many cpus as i can get ahold of

Also very interested in quadcore results.

What's interesting in the graph that HDCHOPPER posted (in the other thread about the same subject) is that the margin for error in GTL refs drops very close to 0 as you approach 1800Mhz fsb, but seems to bounce back up again after it... this tends to suggest this it would be very difficult to tune GTL refs to 1800Mhz but easier at slightly higher speeds..

interesting... can you link me?

I cant get past 450 FSB on this QX with an 8x multi, If I up to 9 its a no go but maybe I should try 10 x 400 FSB and set all the GTL;s to +16? what do you think?

whats the highest fsb with 9x multi for you?

I understand that VTT should be much over 1.4V, but not so sure how high GTL's can go. I'm being stingy on the voltage purposefully to try to tune stability with GTL's.

VTT 1.55v wouldnt boot my 8600
VTT 1.50v works, but i havent had it there for a long time yet
Regarding GTLs, i have no idea... there is no MAX rating for GTL voltages and i havent heard of anbody killing their cpus with high GTL...

but come to think of it... some people actually killes their cpus with relatively low vtt... maybe they tweaked their gtls to high volts and THAT actually killed their cpus and not the VTT?
ill play around some more and will see what i can find.

in any case, i think its unlikely that gtl will kill a cpu...
im sure its possible, but i havent heard of cpus scaling with higher and higher gtl volts. a few steps up or down is usually all you need, so theres no sense in going really high or low which might damage the cpu...