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Haswell Overclocking Guide [With Statistics] - Page 1102

post #11011 of 19539
Quote:
Originally Posted by GeneO View Post

On the video he actually was referring to voltage when he said keep it to within 10%. But I agree, since they haven't specified a voltage, within 10% of what? I would assume 10% of the default voltage at say 39 GHz.
I don't think Intel has specified any maximum voltage. Maybe but darkwizzie will biggrin.gif

VID is so funny lol, within 10% of 1.0vcore at load is not exactly within 10% of 1.2-1.3
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post #11012 of 19539
Quote:
Originally Posted by Cyro999 View Post

VID is so funny lol, within 10% of 1.0vcore at load is not exactly within 10% of 1.2-1.3

I would say 1.5v - 1.52v so add 10% to that...this hasto be about right imo. thumb.gif

after watching the video earlier just see that part lol he states 10% of max which has been speculated for years to be about 1.5ish
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post #11013 of 19539
got my chip up to 4.7GHz now................ still testing for stability but i think its pretty stable so far

pretty nice and even temps that why i took a screen shot thumb.gif

Edited by lilchronic - 3/13/14 at 3:45pm
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post #11014 of 19539
Reading around.... Anyways for the statistics, what stress test(s) and how long? There are so many... (assuming maybe x264 or aida?)

Also, why doesn't everyone use the latest Prime95, just tell it not to use the really hated FMA3? There are some fixes/improvements for AVX in the latest versions.
post #11015 of 19539
After 3 weeks of using x45 I have reverted back to x44.

Initially I thought x45 would be stable at 1.29V. It crashed few times and with each time I have increased the voltage by 0.05V. Today I was sitting at 1.31V and it crashed again during Titanfall game.
I have tortured the CPU at 4.4GHz for days while I didn't really stress test the 4.5GHz. I don't think 100MHz is worth 0.5V increase, especially since temperatures are quite high (on 1.3V/x45 it reached 80c in C3 grass area) so I will stick with the x44 I suppose


BTW. two blue-screens were really scary. One messed up my MBR and bootorder (npnp, once I have manually deleted Linux from secondary drive - now this was a MBR massacre) and after last one I was looping on windows update for some reason, but it fixed itself somehow


Quote:
what stress test(s) and how long?

p95custom1344and1792.jpg

Doesn't heat the CPU too much (AIDA level?) and it really finds instability quickly. 2-3h and it should be fail-proof
Edited by crun - 3/13/14 at 3:27pm
post #11016 of 19539
That's assuming you never use AVX or really use the CPU a lot. Frankly, I don't get the point of being stable only at what you do.
post #11017 of 19539
i use all types of stress tests to test for stability , XTU , aida64, cinebench , x264 , and things you do on a regular basis like games BF4, crysis 3. stress test are really to get a understanding of you're chip, you can run stress test's for hours upon hours then fire up something you do on the regular and crash. the best way to test stability in my opinion is to do what you normally do on you're computer .... what ever that is


if you plan on running prime95 all the time and thats what you do with you're computer then run prime95 to test stability
if all you do is play BF4 and record videos and edit videos then test with that
if you like to run benchmarks and compete with other's then use those benchmarks to test

as long as you're stable every day with the thing's you do on the regular i dont see a need to test hours upon hours to possibly degrade you're chip !
Edited by lilchronic - 3/13/14 at 3:42pm
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post #11018 of 19539
Quote:
Also, why doesn't everyone use the latest Prime95, just tell it not to use the really hated FMA3? There are some fixes/improvements for AVX in the latest versions.

How?
Quote:
That's assuming you never use AVX or really use the CPU a lot. Frankly, I don't get the point of being stable only at what you do.

Well if you insist on passing all tests, gimme a screenshot of your max gflops on Linpack, i didn't see higher than ~230's yet i think wink.gif
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post #11019 of 19539
Damn, why doesn't reply work.


@ lilchronic: You do have a point. But CPU's are made to...compute. Take a look at servers etc. It's when you overclock or raise voltages, you do accelerate your degradation(even almost unnoticeable). But I just can't take the point that when I overclock, I lose something I had at stable.
post #11020 of 19539
Quote:
Originally Posted by kracker View Post

Damn, why doesn't reply work.


@ lilchronic: You do have a point. But CPU's are made to...compute. Take a look at servers etc. It's when you overclock or raise voltages, you do accelerate your degradation(even almost unnoticeable). But I just can't take the point that when I overclock, I lose something I had at stable.

well if you can overclock to where it's stable in everything you do, then there is no need to worry about you're chip not being stable...... right ?
Edited by lilchronic - 3/13/14 at 4:18pm
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