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post #9021 of 33557
Quote:
Originally Posted by VonDutch View Post

gratz liamstears, nice tempdrop thumb.gif
is that vcore 1.4V for the 4.8ghz?

i need about 1.420V vcore for 4.8ghz,
your vcore at 4.6ghz is already 0.040V higher what i need for 4,6ghz..

Thanks for the info could help in getting somewhere

I can boot into windows at 4.8 with just over 1.4v but dies after 20 seconds of a stress test
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post #9022 of 33557
Quote:
Originally Posted by liamstears View Post

Thanks for the info could help in getting somewhere

I can boot into windows at 4.8 with just over 1.4v but dies after 20 seconds of a stress test

saw you talk about cpu pll, did you check?
if its on auto, at least set it by hand, default 1.8V, it could help your oc if you lower it a bit,
ive used between 1.65 and 1.750V most of the time, some go down to 1.5V,

what Matt26LFC said, you could try lower the mhz on your ram,
to rule out problems caused by it, if your dome ocing your cpu,
you can always start upping it again, dont use xmp profile for now if you do smile.gif
but looks like your chip is vcore hungry, mine is average..
Edited by VonDutch - 1/19/13 at 5:49am
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post #9023 of 33557
Quote:
Originally Posted by VonDutch View Post

saw you talk about cpu pll, did you check?
if its on auto, at least set it by hand, default 1.8V, it could help your oc if you lower it a bit,
ive used between 1.65 and 1.750V most of the time, some go down to 1.5V,

what Matt26LFC said, you could try lower the mhz on your ram,
to rule out problems caused by it, if your dome ocing your cpu,
you can always start upping it again, dont use xmp profile for now if you do smile.gif
but looks like your chip is vcore hungry, mine is average..

I don't use XMP - Took me a while to find my stable 2400 at 1.560

Anyway pll was auto, tried lowering it and going up to 1.480 vcore and set memory down to 1600 and still its a no go. It does pass a couple runs of IBT but still its not near stable and I was hitting 90C

So I've made a decision, I'm not going to bother trying for 4.7 or 4.8 I'm just going to tweak my 4.6 OC best I can and stick with it. At least its a slightly better performing than my last proc the 2700k which I had at 4.5
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post #9024 of 33557
Quote:
Originally Posted by liamstears View Post

I don't use XMP - Took me a while to find my stable 2400 at 1.560

Anyway pll was auto, tried lowering it and going up to 1.480 vcore and set memory down to 1600 and still its a no go. It does pass a couple runs of IBT but still its not near stable and I was hitting 90C

So I've made a decision, I'm not going to bother trying for 4.7 or 4.8 I'm just going to tweak my 4.6 OC best I can and stick with it. At least its a slightly better performing than my last proc the 2700k which I had at 4.5

still strange, but like i said, look like you have a vcore hungry chip,
most i see around here are still able to do 4.7-4.8ghz at least,
think you made the right desicion, optimize your 4.6ghz,
it is what it is with vcore, temps you can do something about with delidding, thats for sure smile.gif
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post #9025 of 33557
Quote:
Originally Posted by VonDutch View Post

still strange, but like i said, look like you have a vcore hungry chip,
most i see around here are still able to do 4.7-4.8ghz at least,
think you made the right desicion, optimize your 4.6ghz,
it is what it is with vcore, temps you can do something about with delidding, thats for sure smile.gif

Its ok it doesn't bother me not being able to go higher than 4.6, 4.6 is more than enough for me and what I use it for

The way I see it is thanks to my h80 on my 7950 and all the extra I've lost temp wise thanks to the coollabratory liquid pro (lost 20C on cpu, 12-14C on gpu) I have a high performing comp that's near silent, I can run anything I like games etc with all fans on the absolute minimum so its really really quiet

Overall I'm pleased :-D

EDIT: as for optimizing the 4.6 it looks like I've managed to drop vcore a notch so its maxes at 1.352v and highest core is 72C so a little better but it hasn't done 12hours yet ;-)
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post #9026 of 33557
those chips once you get over 4.6ghz they need a ton of vcore. my chip can do the following. so you can see the increments it went up on mine.

daily 4.6@ 1.3v stable
4.8ghz @1.375v
5.0@1.475v through 3dmark11
5.1ghz@1.575v through 3dmark11


once you get up to 5, the vore comes into play. i wont run mine through benchmarks any faster then 5.0ghz from now on. dont feel like dumping tons of vcore into it. plus my temps stay under 65c at 1.5v, if i go higher temps climb. but that seems to be the norm for these chips. some lower then others, but once you hit 5ghz, the vcore goes up in large increments
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post #9027 of 33557
Quote:
Originally Posted by Vi0lence View Post

those chips once you get over 4.6ghz they need a ton of vcore. my chip can do the following. so you can see the increments it went up on mine.

daily 4.6@ 1.3v stable
4.8ghz @1.375v
5.0@1.475v through 3dmark11
5.1ghz@1.575v through 3dmark11


once you get up to 5, the vore comes into play. i wont run mine through benchmarks any faster then 5.0ghz from now on. dont feel like dumping tons of vcore into it. plus my temps stay under 65c at 1.5v, if i go higher temps climb. but that seems to be the norm for these chips. some lower then others, but once you hit 5ghz, the vcore goes up in large increments
that also depends on the chip you have, and where you hit max safe vcore, liamstears is already at his max with 4.7-4.8ghz
4.5ghz needs 1.235-1.2440
4.6ghz needs 1.275V
4.7 ghz needs 1.3V
4.8ghz needs 1.420V my max safe vcore
4.9ghz needs 1.510-1.520V vcore , thats my max

my 4.6 and 4.7ghz vcore are close, then i need a big jump to get to 4.8ghz
Edited by VonDutch - 1/19/13 at 9:48am
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post #9028 of 33557
ive had my chip up to 1.75v for validations, 1.6v through benchmarks and the chip never went over 70c. still works fine. its all preference. if your fine with staying at 1.5v thats a good safe goal that will run solid for a long time.

thats why im staying at 5.0ghz. dont feel like killing my chip on water. ill leave this chip as a daily chip and be done with it. thumb.gif
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post #9029 of 33557
Quote:
Originally Posted by Vi0lence View Post

ive had my chip up to 1.75v for validations, 1.6v through benchmarks and the chip never went over 70c. still works fine. its all preference. if your fine with staying at 1.5v thats a good safe goal that will run solid for a long time.

thats why im staying at 5.0ghz. dont feel like killing my chip on water. ill leave this chip as a daily chip and be done with it. thumb.gif
i needed 1.750V vcore for my 5.4ghz oc in my sig,
and 5.5ghz needed 1.850V ..lol

but my mobo is limited at 1.850V, so i had the disable HT, and 2 cores to make it run,
so i only have the 5.4ghz in my sig ..lol smile.gif

theres a difference between benching and running a vcore 24/7,
1.5V as max i wouldnt even do 24/7,
for me the "safe" max is more about 1.45V for 24/7 OC, if temps permit..
Edited by VonDutch - 1/19/13 at 9:57am
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post #9030 of 33557
yea i did 5.55ghz at 1.762v on water LOL. did it for validation only. didnt even run a single program except my tuner and cpu-z. but i was lucky. it was 4 cores 8 threads.

http://valid.canardpc.com/show_oc.php?id=2596941
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