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post #11 of 19
Thats pretty good there, Buzzin.

You what to stress it? See how you go folding overnight
post #12 of 19
Thread Starter 
Quote:
Originally Posted by Sethy666 View Post
Thats pretty good there, Buzzin.

You what to stress it? See how you go folding overnight
Thanks!

Yeah, I'll see if Prime95 turns out stable overnight, then most of tomorrow/tomorrow night will be folding SMP only to get the most out the i3, then I'll start the 560 going if all turns out stable
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post #13 of 19
Quote:
Originally Posted by Buzzin92 View Post
Thanks!

Yeah, I'll see if Prime95 turns out stable overnight, then most of tomorrow/tomorrow night will be folding SMP only to get the most out the i3, then I'll start the 560 going if all turns out stable
Excellent

Then you can sign up for the Forum Folding Wars with Team Canada
post #14 of 19
Quote:
Originally Posted by Starbomba View Post
Max voltage for a Clarkdale is roughly 1.45v. 1,475v makes it die, and i wouldn't go over 1.4v for 24/7 stability, but that's just me.
The Pentium G6950 has a 21x multiplier.
4.41GHz on a G6950 requires a 210 Bclk.
Perhaps he killed it with too much Vtt? Perhaps temperature was too high?

To me, it seems unlikely that 1.475 Vcore can kill a Clarkdale in only a few days or few weeks.
If 1.475Vcore can kill Clarkdale's, then 1.4Vcore should also do serious damage, but this is not true.
I have been running my core i3 530 stable at 21x198 1.38-39Vcore and 1.3Vtt for 6-9 months.
     
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post #15 of 19
Quote:
Originally Posted by Partol View Post
The Pentium G6950 has a 21x multiplier.
4.41GHz on a G6950 requires a 210 Bclk.
Perhaps he killed it with too much Vtt? Perhaps temperature was too high?

To me, it seems unlikely that 1.475 Vcore can kill a Clarkdale in only a few days or few weeks.
If 1.475Vcore can kill Clarkdale's, then 1.4Vcore should also do serious damage, but this is not true.
I have been running my core i3 530 stable at 21x198 1.38-39Vcore and 1.3Vtt for 6-9 months.
In the article, though not stated exactly how much, but it says temps were in check. Plus there is no need to raise VTT unless you're running LN2/DICE benches. And i've seen i3 and dual core i5's that easily go over the 200 MHz bclk barrier.

My i3 has also been running awesomely at 1.3825v with LLC On (meaning it can go over that voltage), and 1.275v VTT

Reason voltages do not have to be too high is because these chips are not 45nm parts like the i5-i7 series, they're 32nm. The smaller the transistors the lesser energy they will be able to withstand. Plus, as you can see on your mobo, even an almost insignificant voltage boost can make the difference between stability and failure on an OC, that's why you see the small increases. Why wouldn't a small voltage increase fry a chip as well?
Edited by Starbomba - 11/4/11 at 5:22am
   
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post #16 of 19
Thread Starter 
Quote:
Originally Posted by Sethy666 View Post
Excellent

Then you can sign up for the Forum Folding Wars with Team Canada
I sure will do, I have a couple of friends in Canada anyhow

Quote:
Originally Posted by Partol View Post
The Pentium G6950 has a 21x multiplier.
4.41GHz on a G6950 requires a 210 Bclk.
Perhaps he killed it with too much Vtt? Perhaps temperature was too high?

To me, it seems unlikely that 1.475 Vcore can kill a Clarkdale in only a few days or few weeks.
If 1.475Vcore can kill Clarkdale's, then 1.4Vcore should also do serious damage, but this is not true.
I have been running my core i3 530 stable at 21x198 1.38-39Vcore and 1.3Vtt for 6-9 months.
I had 4.4GHz @1.4v on my G6950 (before the i3) but it wasn't completely stable, VTT didn't seem to make much diference either for me.

Quote:
Originally Posted by Starbomba View Post
In the article, though not stated exactly how much, but it says temps were in check. Plus there is no need to raise VTT unless you're running LN2/DICE benches. And i've seen i3 and dual core i5's that easily go over the 200 MHz bclk barrier.

My i3 has also been running awesomely at 1.3825v with LLC On (meaning it can go over that voltage), and 1.275v VTT

Reason voltages do not have to be too high is because these chips are not 45nm parts like the i5-i7 series, they're 32nm. The smaller the transistors the lesser energy they will be able to withstand. Plus, as you can see on your mobo, even an almost insignificant voltage boost can make the difference between stability and failure on an OC, that's why you see the small increases. Why wouldn't a small voltage increase fry a chip as well?
My motherboard is limited with OC ajdustments The only options I get are Performance Ratio (Multiplier), bclk and voltage for CPU, VTT, Memory, PCH. thats it :|
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post #17 of 19
Quote:
Originally Posted by Starbomba View Post
Why wouldn't a small voltage increase fry a chip as well?
There are many people on this forum running more than 1.4Vcore on a 32nm intel cpu. Do you think my core i3 530 will die if I run prime95 6-12 hours at 1.475Vcore? Just say yes, and I'll be happy to test it.

Tom says he lowered the overclock from 4.5GHz to 4.4GHz because of temperatures.
He also does not tell us about other voltages, which, in my opinion, is suspicious.
Edited by Partol - 11/4/11 at 6:10am
     
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post #18 of 19
Thread Starter 
Well thats 11 hours stable, I think it's safe to say I can stop the test now.

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post #19 of 19
Quote:
Originally Posted by Buzzin92 View Post
I had 4.4GHz @1.4v on my G6950 (before the i3) but it wasn't completely stable, VTT didn't seem to make much diference either for me.
VTT, while it influences the bclock, the best reason i've used it for is to stabilize an OC when you have a lot of RAM or more than 2 sticks. When i had 4 RAM sticks (4x 2 GB sticks for 8 GB), i had to use a VTT of 1.325v, and my max bclk was 173 MHz, to reach a max OC of 4.16 GHz. Changing my RAM to 2 sticks (2x 4 GB sticks for the same 8 GB) lowered my VTT to 1.275v, raised my max bclk to 195 MHz, to a max theoretical OC of nearly 4.7 GHz, and a 24/7 bclk of 193 MHz, and a stable OC of 4.44 GHz. And if it weren't for me being a coward and sticking to a ceiling of 70c on max load i could've easily stabilized 4.5 GHz with a smudge more voltage.

Quote:
Originally Posted by Partol View Post
There are many people on this forum running more than 1.4Vcore on a 32nm intel cpu. Do you think my core i3 530 will die if I run prime95 6-12 hours at 1.475Vcore? Just say yes, and I'll be happy to test it.

Tom says he lowered the overclock from 4.5GHz to 4.4GHz because of temperatures.
He also does not tell us about other voltages, which, in my opinion, is suspicious.
I do agree that it is pretty weird not to list temps and volts on that article, or even if they were playing with an ES (i really doubt they make ES's of low-end CPU's, but you never know), but it is the only reference we have for limit voltages. And i have never seen anyone with over 1.42v vcore on an i3 or dual core i5.

Considering the max temps of these chips being 100c it would be pretty hard to get temp issues unless you've mounted a cooler wrongly or you're using the pathetic excuse of the stock cooler.

Quote:
Originally Posted by Buzzin92 View Post
Well thats 11 hours stable, I think it's safe to say I can stop the test now.
Now you need to test with a couple SMP's or with NFS@Home (BOINC). NFS actually made me raise my Vcore and VTT a bit to be truly stable.
   
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