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Haswell Overclocking Guide [With Statistics] - Page 912

post #9111 of 19637
Quote:
Originally Posted by peakclimber View Post

I've back read a few 1000 posts and been following along on this thread. First thanks Darkwizzie for starting it especially the idea of keeping the data in one spreadsheet one can download.

One of the more interesting points I see emphasized here is the relation of Vccin with Vcore. While I read elsewhere the usual "keep Vccin +.4-.5 above Vcore", this thread suggests an even tighter sensitivity between the two. I took the data spreadsheet from the first post and decided to plot Vccin to CPU VID. While Vccin was only provided from some of the lines, I think there is enough to draw some conclusions.

From a linear relationship point of view, the data would suggest CPU VID + .6v is the sweet spot for Vccin.

Trying to apply a polynomial relationship, it might hint that even more is to be added above 1.325 Vcore, ramping even higher with larger Vcore. But I think the data above 1.4 Vcore is a bit questionable given the lack of data points.


Thanks for this!
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post #9112 of 19637
Thread Starter 
Quote:
Originally Posted by mandrix View Post


Are you asking me if I know what the hell I'm doing? smile.gif Again, I'm sure of the voltages and also sometimes monitor with my DMM.....the voltages displayed by HWINFO are very close to what the DMM shows.
LLC is not a voltage, it's load line calibration that (for Haswell) affects vrin/vccin, whichever you want to call it. I have this set to Extreme.

I just finished testing out a bunch of x254 loops @ 4.9 & tweaking, and my final "stable" settings were:
vccin/vrin 2.100
vcore 1.395 (set) 1.404 (load)
vring 1.15 (set) 1.177 (load)
uncore x39





BTW, I did notice that while in the BIOS, the vring reads 2.100v. In Windows of course it's what I stated above.
Hey, you mind telling me your batch number, and how many x264 runs you actually ran? An estimate if you can.

Quote:

Originally Posted by DarkReign32 View Post


That's what I figured. I was just trying my best to get to 5.0GHz. Oh well, 4.8GHz is still pretty darn good.

If I were you I'd get 4.9ghz. :) RAWR!

 

Quote:
Originally Posted by Akehage View Post

Got bsod again after 9h stress with prime. That on
43x multiplier
Vcore: 1.289
Cache ratio min/Max 35
Cache ratio v: 1.2
Vrin 1.9
Analog i/o: +0.1v

Bsod told the same as before. More vcore.
But don't wanna go more for. 4.3 is really bad.was hoping for much more. Shouldn't have abandoned my 4.8 sandy. Miss her! smile.gif

Cstate as suggested btw and think my psu did support that too.

Can I try something else? Guess I have to live with 4.3 only as stability?

See if you can pass a good 20 pass on x264. If you do I think your stabillity is good enough to try using your computer normally and seeing if it ever crashes. Thre's not much I can pull out of my hat for you with those settings. I mean, you might benefit from 2.0 Vrin, I don't know. Beyond that, it's just a choice of stress test and using more Vcore or not.

Quote:
Originally Posted by Cyro999 View Post


101 can be thrown by vcore or imc too. I dunno about much further than 2.15, highest i've ran any kind of long term is 2.0
Next guide improvement project will be dealing with Bsod codes.

 

Quote:
Originally Posted by peakclimber View Post

I've back read a few 1000 posts and been following along on this thread. First thanks Darkwizzie for starting it especially the idea of keeping the data in one spreadsheet one can download.

One of the more interesting points I see emphasized here is the relation of Vccin with Vcore. While I read elsewhere the usual "keep Vccin +.4-.5 above Vcore", this thread suggests an even tighter sensitivity between the two. I took the data spreadsheet from the first post and decided to plot Vccin to CPU VID. While Vccin was only provided from some of the lines, I think there is enough to draw some conclusions.

From a linear relationship point of view, the data would suggest CPU VID + .6v is the sweet spot for Vccin.

Trying to apply a polynomial relationship, it might hint that even more is to be added above 1.325 Vcore, ramping even higher with larger Vcore. But I think the data above 1.4 Vcore is a bit questionable given the lack of data points.

How do you calculate the poly and linear lines?
 

New hypothesis:

The extra amount of Vrin required for a higher Vcore value differs from CPU to CPU, just like how different CPUs require different amounts of Vcore for a multiplier.


Edited by Darkwizzie - 1/26/14 at 10:01pm
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post #9113 of 19637
Will try that x264 test also. And maybe try vrin at 2 if it's considered safe. Thanks all for helping out!
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post #9114 of 19637
Quote:
Originally Posted by Darkwizzie View Post


New hypothesis:
The extra amount of Vrin required for a higher Vcore value differs from CPU to CPU, just like how different CPUs require different amounts of Vcore for a multiplier.

I can certainly agree with you on that....For my 4.6 OC, I'm running 1.95v VRIN with 1.43v vcore....biggrin.gif
post #9115 of 19637
Quote:
Originally Posted by jameyscott View Post

I believe it does. If your's doesn't, it should support c3 and c6. Maybe you could be our Guinea pig and test if adaptive allows you to drop to low volts even though your PSU doesn't support c7.
i will see how low my volts are, with just adaptive i think it goes to 0.716? Something like that. Il see what happen if i manually put the other c states
post #9116 of 19637
Thread Starter 
Quote:
Originally Posted by paramazon View Post


i will see how low my volts are, with just adaptive i think it goes to 0.716? Something like that. Il see what happen if i manually put the other c states

What motherboard?
And you're saying you have voltage drop on idle with adaptive on and C states all disabled?

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post #9117 of 19637
Quote:
Originally Posted by blaze2210 View Post

I can certainly agree with you on that....For my 4.6 OC, I'm running 1.95v VRIN with 1.43v vcore....biggrin.gif

I got soooo many 101's, trying to stabilize 4.7 before tongue.gif

I was running stuff like 1.32/1.88 up to ~1.35/1.9 with catastrophic failure, probably 50 101's. As soon as i went to 2.0vrin range i got quick encoder passes at 1.32 and long term passes at 1.34
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post #9118 of 19637
Does running x264 (default 4 loops) for 5-6 times continuous one after another resulting in same as 20 loop x264 ? redface.gif
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post #9119 of 19637
Quote:
Originally Posted by Johny Boy View Post

Does running x264 (default 4 loops) for 5-6 times continuous one after another resulting in same as 20 loop x264 ? redface.gif

No. You need to download what is in the OP. Default it runs pass 1 then 2 then 1 and so on. You want pass 1 to run once and then all pass 2 because that is the stressful part.
post #9120 of 19637
Before I would just like to say I am so mad at this Asus ROG bios and fan control frown.gif

Forcing my mcp35x to minimum of 3000rpm when I only need half of that.

Anyway, time to start playing with haswell biggrin.gif There is a lot of water, rads, and fans waiting for the heat
  
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