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Temperature vs voltage at 5ghz. degradation revisited

post #1 of 38
Thread Starter 
Hi
Recently i have been having alot of fun with my delidded 3570k
My biggest dilemma at the time being is to choose between two stable overclocks that i have rigorously tested.

4.9 ghz which at the time im running below 1.35vcore. it idles at about 1.0 vcore temps do not exceed mid 50's on the hottest core.
needless to say the vcore and temps only reach its max temps at stress testing IBT

5.0 ghz which is running below 1.4 vcore. it too idles around the 1.0 vcore with the off set setting and the hottest core does not surpass the high 50's. same logic applies in that the vcore and temps only teach its max temps at IBT and never at real life setting such as playing a game or doing heavy load work.
at the time it is on .270 turbo with .005 offset in voltages

I want to hear your individual opinions in two schools.
I understand that theres not much of a performance gain from 4.9 - 5.0 but as you know the inner desire to push the computer 1mhz faster is the whole reason behind overclock.net (obviously to a tasteful extent)

Plus 4.9ghz is not a 5ghz computer.

I understand that every scenario is unique in its own way and I feel that the temps not going over 60 is rare from what ive seen so far. I want your opinion if the low temps will possibly outweigh the 1.39~ vcore.

if anyone has experience degradation at a certain vcore, please do post here for me as well.
again thanks for your interest and your help!
Edited by ByeByeFive - 1/23/13 at 9:27am
post #2 of 38
Just like you put it yourself! 4.9GHz is not 5GHz biggrin.gif

But high 50's in IBT? Wth are you using to cool that.

Mine is just a 2500K but I have ran it for pretty much a year at 5GHz with ~1.49V under load with no signs of degradation yet atleast.
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post #3 of 38
Thread Starter 
Quote:
Originally Posted by Stige View Post

Just like you put it yourself! 4.9GHz is not 5GHz biggrin.gif

But high 50's in IBT? Wth are you using to cool that.

Mine is just a 2500K but I have ran it for pretty much a year at 5GHz with ~1.49V under load with no signs of degradation yet atleast.
Quote:
Originally Posted by Stige View Post

Just like you put it yourself! 4.9GHz is not 5GHz biggrin.gif

But high 50's in IBT? Wth are you using to cool that.

Mine is just a 2500K but I have ran it for pretty much a year at 5GHz with ~1.49V under load with no signs of degradation yet atleast.

Its a custom watercool setup using rasa rx360 kit with gentle typhoon push and pull config. I delidded with direct no ihs contact to the heatsink with coollaboratory pro on the dye.

from what i gather the ivybridge can withstand more heat and has a high tjmax than the sandy. so from your experience this was fine?
post #4 of 38
I look at more like 4.8GHz (in my case) is a "sweet spot" that's the best compromise between game performance, safe temperature and voltage, and getting the most out of the GPUs. And no matter what I end up with, there's always going to be someone out there with a better score, and I admire their success.
post #5 of 38
What seems to be the popular consensus around here is temps kill chips not volts. So you should be good I would imagine if your able to keep the temps down. Also in a couple months when Haswell drops theres gonna be Ivy chips all over the forsale section so you'll be able to get one cheap.
 
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post #6 of 38
i see no problem running 1.4V vcore, if temps permit,
its my believe(and others) anything between 1.3 and 1.45V vcore is safe..

5.0ghz just sounds cooool!! ..lol
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post #7 of 38
If it helps I've been running my chip at 4.6GHz @ 1.344 volts (Offset mode) for over six months with zero problems. I would imagine on fixed mode you may run into degradation problems sooner than you would on offset mode.
post #8 of 38
I would hazard a guess and say the cpu is not fully stable if your getting 50c under full load. My cpu did that too when I was stress testing, low temps indicate instability.
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post #9 of 38
Thread Starter 
Quote:
Originally Posted by nagle3092 View Post

What seems to be the popular consensus around here is temps kill chips not volts. So you should be good I would imagine if your able to keep the temps down. Also in a couple months when Haswell drops theres gonna be Ivy chips all over the forsale section so you'll be able to get one cheap.

yeah im pretty comfortable with temps as of right now
Quote:
Originally Posted by VonDutch View Post

i see no problem running 1.4V vcore, if temps permit,
its my believe(and others) anything between 1.3 and 1.45V vcore is safe..

5.0ghz just sounds cooool!! ..lol

i guess im going for the 5.0ghz cool effect as well. Ive been pushing 5ghz on different chips for a while and not until this silicone lottery was i able to reach 5 with comfortable temps.
Im stress testing as we speak. heres a screenie.
I put about 3 bumps higher on turbo to be completely stable. i was able to run 5ghz at a much lower vcore but temps didnt change

post #10 of 38
Thread Starter 
Quote:
Originally Posted by $ilent View Post

I would hazard a guess and say the cpu is not fully stable if your getting 50c under full load. My cpu did that too when I was stress testing, low temps indicate instability.

if you are correct, using superior cooling and getting subzero temps must mean that the cpu is unstable?


I can get 5.2 ghz stable as well but i have to shoot vcore too much and temps reach high 70's so i rather not go that far.
Ive done more than 24hrs on prime ran it 200 runs on ibt test along with linx test and played a bunch of games and tried to throw everything i can, even surf firefox while doing stress test and running small programs.
If thats not stable please tell me what you think constitutes and being stable. ill come back in a couple of days of doing whatever method you think constitutes and being stable and show you proof in this thread.

Sorry got kind of worked up there but i take my stable oc pretty seriously and when people come up with ridiculous accusation without any evidence to back it up it kinda irks me
Edited by ByeByeFive - 1/23/13 at 10:00am
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