GTL Ref Tweaking Guide

[negev]

Hey ryan, as far as i know clock speed limitation should largely be the cpu. There is no way that board should outperform the Blackops, so either he's got a wicked cpu or the blackops is not very good.

Any chance you can borrow his 9450 and try it on your BO?

[Ryan12]

Hey ryan, as far as i know clock speed limitation should largely be the cpu. There is no way that board should outperform the Blackops, so either he's got a wicked cpu or the blackops is not very good.

Any chance you can borrow his 9450 and try it on your BO?

I can see, he does have a watercooling setup so he might not want to take it all apart, but ill certainly ask if i can give it a go

[3BABY]

Hey Guys,

ok, so reading this thread ive seen alot of people that are pulling their hair out about getting stable FSB overclocks outs this board. ive tryed a few CPUs on this board, and really the main reason for buying this board was to prove its pricetag by putting in the Dogiest Quad i got my hands on and testing the hell out of it. this post is more to Quad related. as i havent had much experience with Duals on this board, and from what Gendo said:

This board has been optimized to run yorkfield quadcores

it really looks like this board was built for Quads.


some of my voltages and/or methods may not be agreed on by others but they work (or have worked for me).. always have, from what i understand 45nm Quads (and duals) like a VTT of around 1.38 anything higher doesnt give any advantage and will only kill your CPU eventualy, 65nm quads like around 1.5-1.565v anything too much higher and youll get the same (degradation) but the 65nm quads are more lenient with voltage.

You HAVE to adjust GTLs and correctly to get higher FSB. on a 45nm Quads adjust GTLs to as close to 63% of VTT, on 65nm adjust GTLs as close to 67% of VTT. if you cant work out how, you need to measure them using a Multimeter and Saaya's pics in Post#1

below are some pics of the Q6600 i chose to give a hiding, Newest batch i could find, High VID, absolute pig from a golden chip, max bootable was 493fsb, max windows useable was 488fsb, stable i havent tested. but to get 450stable wont be hard. please note some of my voltages are HIGH. but to overclock you need Power right



and heres some screenies









This is by far the best X38/X48 board ive used, some 45nm quad numbers to come later

[RAYTTK]

Well thanks to others pushing the volts up on there chips and posting results, I have managed a 15hour prime stable plus 20 runs of Itel Burn Test overclock of 3.75 thats 8 x 469mhz on my QX6850.
CPU VCORE=1.46
PLL= 508
VTT=1.575
GTL CORE O=15, 1=10, 2=12, 3=12
NB=1.59
SB=1.6
VDIMM=1.93 FOR 1877MHZ, 8, 8, 8, 16, PL7,
My cpu will not do 4 ghz +, stable on this board