GTL Ref Tweaking Guide

[Sailindawg]

It's totally the right mixture of voltages rather then just MORE volts

I think that's a pretty succinct statement regarding GTL to stabilize an overclock. After reading forum posts and other articles, that's pretty much sums up how I have begun to look at using GTL tuning. It's a very time consuming and slower approach, but an approach that should yield stable clocks without over volting the cpu unnecessarily.

@Saaya

ill check with a quad tomorrow

Any chance you could run a 65 nm quad as well?

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?

I'm running a Q6600 and I'm currently priming away. I'm running at 9x380, using 1.3375 Vcpu (BIOS) and have my GTL's set at +14 for core 0&2 and +16 for cores 1&3. In my case running all cores at +13, while stable for 9x363, @ 380 core 3 would fail within 15 minutes. Setting core 3 to +14, would get one hour, +15 would make core 0 fail after 4 hours. I ended up setting core 0 & 3 both to +16 and I'm passing P95 for 3 hours so far.

The funny thing is that I can pass Intel Burn test 20 passes with GTL's all set to +14. I like to be P95 stable for at least 7 hours. I have never had a problem overclocking using that stability criteria.

The one question I have, is how high is too high for a GTL setting?

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.