@4.0GHz all mobo should not hav a problem...only the different is the vcore that needed to feed it...

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Added on March 3, 2008, 9:24 amGTL = Gunning Transceiver Logic
- reference levels that the CPU uses when determining if a data or address signal is either high or low to NB chip...acting like divider for CPU:NB
- usually specified as a percentage of Vtt/vfsb
- this values are particularly important when overclocking quad-core CPU especially when venturing above 450fsb
- the theory is like when u search a radio station...u get it..then u fine tune it...to a better clear reception frequency..so in OCing...example: u find the vcore 1.30v to get 4.0GHz...adjust ur GTL maybe will bring u at 1.29v...getting lower vcore from the previous...but it just a very small value...
- other like if u r priming at 4.0GHz but failed after 45 minutes...by tweaking GTL...then u priming again...it will go over the 45 minutes example maybe 2 hours if the setting is correct
- those looking for a maximum stable overclock with the minimum amount of voltages will find GTL tuning a necessity...otherwise no need to do...just like some mobo out there...there is no GTL tweaking option in their bios...
- its actually a fine tune of stability...

Vtt = Vfsb = termination voltage

This post has been edited by flatfinger: Mar 3 2008, 10:21 AM

Overvolting is very common when it comes to overclocking so as long as you do it right and knows how to handle the heat, I don't see what's the issue. That GTL voltage tweaking will most likely bring you no reduction in Vcore and if we want to overclock CPU clock speed without adding any Vcore, that'll probably never happen

There are always people that does not know how to overclock well and share baseless facts with others. There goes someone that RMA-ed 5 sticks of RAM in less than a year so its up to you guys on whose advice to buy

Hey! Nice explanation!

Was going to do that in my guide but lazy.....

pity ppl who dont know how to overclock.. and complain about other ppl's rma issues.. if the ram fails.. what u want me to do.. frame it.. DA.
when he is 5 hours stable and suddenly failed.. its due to overshot or undershot of his wavelength
gtl is to adjust overshots and undershots.. simple.
and DA before u start adjusting GTL u need to have a good range on termination voltage... and this is part u obviously dont get it.
the reason is ure adjusting ref termination voltage.

5 hours stable orthos is clearly a fsb termination or gtl problem. but again talking to somebody who has never tried is is just like talking to a rat who never tasted foie gras
this is not reduction in vcore..
pity some ppl dont understand that.
and has a imaginary 4ghz less than 11sec sp1m.
worst when they nver tried it and dont read articles like edgeofstability.com
and dont misquote things u dont understand especially when u've obviously dont understand it.

i can show u failure in 45 minutes becomes 12 hours stable.
but then again no point showing ppl who will keep giving excuse for their ignorance. cause in the end of the day ure arguement "is not everybody mobo has it."

e8400 is not like C2D..
even sometimes 0.008v less will result in immediate failure mr.kmarc
u need more accurate voltages.

ppl who just manage to get their proc stable for 1 hour is just plain silly to comment so much about things they didnt even know from the start of this thread.. and never tried
and then started being experts without even trying

faith without good works is like a fool planting seeds on rocky ground.
this is y i ignored flamers like this. especially when he is proven so many times wrong on this thread..hint hint.


This post has been edited by cstkl1: Mar 3 2008, 11:43 AM

erk guys cool down plz dont fire among of us..we tryin to discus here bout oc..im thanked an respect all of u guys opinion..can we pull aside those fighting and negative part? im feel abit guilty coz im apart of this fighting when askin help

copy paste mine la...u edit some words make ppl easy to understand...

Guys, I'm quite confused on my core voltage readings here.
Using a E8200 with Abit IP35-E mobo. CPUZ readings show 1.07V. Same when I check under PC health status in my bios.

But at the voltage settings in bios I set it at 1.26v(default at 1.2v). So which is the real one?

this is about vbios, vdrop n vdroop

example...by selection 1.26v in bios setting (vbios)...u will not get accurate that value...it will be less...there for it will only feed 1.07 in window cpu-z (vdrop)...try priming/load it...u will see it'll be lesser than 1.07v...maybe like 1.05v (vdroop)...get what i mean?

to get real reading ..maybe u have to use voltmeter...but ppl always use the cpu-z reading on vdrop n vdroop...

This post has been edited by flatfinger: Mar 3 2008, 03:39 PM

Hmmm so my vcore is now at around 1.048/1.056 at load with Orthos running. So much vdroop, will it affect anything? A drop of 0.2v

This post has been edited by scpt: Mar 3 2008, 05:32 PM

the vdroop is a common n normal affect to most intel mobo.....intel power delivery design..
vdroop actually is an output voltage droop with a steady-state value...which help to reduce the output-voltage spike that results from fast load/current demand changes...which mean its good for our proc when on load...
the bad side is..u need to set higher in bios...to get ur desire voltage in window...

This post has been edited by flatfinger: Mar 3 2008, 05:05 PM

weird.. i sometimes get random errors from orthos and orthos crash... maybe shud try other stress programs... any recomendations?

erk izzit erm myb urs corrupt dy u can try prime95 or occt

That can also occur when your OC is not stable......

sometimes i find prime results not accurate
thats y i always play videos when i am running it...

btw here the 4.3ghz i prime for 9hours
set in bios 1.4v vcore, 1.41v NB..i think there such abit vdrop oso..coz sumtime its shown 1.39v but mostly its 1.376v..izzit coz by psu oso?haha coz didnt use 8pin atx psu..jus using 4pin atx




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PSU may can cost instability coz 4pin atx at 8pin eps...but its normal set in bios 1.4v vdrop at 1.39 and vdroop at 1.376v...Btw..nice clock there

or maybe vista problem?

woah sure bo?... i run prime @ priority 10 canot do anything else adi...

dont run priority 10 la...kejam ...just run small FFT at priority 8 only...enough already

This post has been edited by flatfinger: Mar 4 2008, 10:30 AM

owh..ok..thx flat..will try prime back later once i fix into my case back using OP750..later wanna try how highest 1M SPi i can do on this proc or shud i oc higher to c the highest stable clock? erm how bout highest vcore dat in safe range are to be use?

i think vcore below 1.45v or 1.4v is safe for e8400 series.... dun dare to put too much voltage on it as its 45nm proc...