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Haswell Overclocking Guide [With Statistics] - Page 1137

post #11361 of 19539
Quote:
Originally Posted by FractinJex View Post

Several things to clear up....your cpou cannot idle down to 0.003v im sorry this is impossible...if your getting this reading in cpuz you need to run the older version as this is wrong...pretty much the lowest the cpu can idle is around 0.699v

and no I don't need to educate myself on haswell especially as ive overclocked way more haswells than several of you combined and have pushed clocks way higher than you all...

Also Darkwizzie im not hating at all man...your more knowledgable than most and more than me in general on haswells....

I disagree though that you think your board is different as far as bios's go and whar the poiwer phases are doing...

just because a motherboard works doesn't mean it works correctly..you could have a phasing issue...ive seen alklk types of issues with boards...

I also onw a z87 maximus formula...I know how the asus boards work as well as asrock...

but you guys doy uor thing...sorry I want boiher anymore.

Voltage reporting in c6/c7 state is a bit funky, apparently DMM reports that too. They do idle to ~0.7 without those states (which drop power significantly further) though.
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post #11362 of 19539
dude wether you run c states or not the cpu cannot run lower than approx. 0.699v you can argue this all you want it simply cannot...

also overclocking isnt 100% based on cpu as much as some believe..higher end boards have more/different settings and more phases allowing for higher overclocks at cleaner voltages and regualtions...sure anything around 4.5ghz at 1.3v or so is going to be possible on any mid range board...

now when you start pushing above those kinds of clocks vcore voltage regulation and thermal/current balance and a lot of other things come into play...
im not gonna write some huge wall of text explaining this but it is fact...

maybe skylake will have idles that low but until then haswell gets pretty dang low biggrin.gif
Edited by FractinJex - 3/21/14 at 4:19pm
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post #11363 of 19539
Quote:
Originally Posted by FractinJex View Post

dude wether you run c states or not the cpu cannot run lower than approx. 0.699v you can argue this all you want it simply cannot...

maybe skylake will have idles that low but until then haswell gets pretty dang low biggrin.gif
then there many people in this thread with motherboards reporting inaccurately. I can watch my vcore drop way below that. On my z87 plus and my z87_a. I really doubt they are both broken.
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post #11364 of 19539
? How do you disable IRST from BIOS? I have always used IRST and see voltages drop to 0 volts with C6/C7 enabled.

EDIT:

where did that post I was replying to go...?
post #11365 of 19539
Thread cleaned.

There were some informative posts that I had to remove as they were part of the overall argument, if they did get deleted then feel free to repost.

Keep it civil guys, thanks. smile.gif
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post #11366 of 19539
Thread Starter 

The original topic is about what causes voltage drop on idle: EIST, Cstates, or Adaptive?

 

The conclusion remains the same: The way to toggle the functionality varies.

 

Quote:
Originally Posted by twerk View Post

Thread cleaned.

There were some informative posts that I had to remove as they were part of the overall argument, if they did get deleted then feel free to repost.

Keep it civil guys, thanks. smile.gif
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post #11367 of 19539
Just cause you're jealous. wink.gif
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post #11368 of 19539
Quote:
Originally Posted by FractinJex View Post

dude wether you run c states or not the cpu cannot run lower than approx. 0.699v you can argue this all you want it simply cannot...

also overclocking isnt 100% based on cpu as much as some believe..higher end boards have more/different settings and more phases allowing for higher overclocks at cleaner voltages and regualtions...sure anything around 4.5ghz at 1.3v or so is going to be possible on any mid range board...

now when you start pushing above those kinds of clocks vcore voltage regulation and thermal/current balance and a lot of other things come into play...
im not gonna write some huge wall of text explaining this but it is fact...

maybe skylake will have idles that low but until then haswell gets pretty dang low biggrin.gif

Quote:
Originally Posted by Clexzor View Post

why would you disable irst...hes not right what is wrong with you guys lol your vcore CANNOT lower to 0.016 even if every seingle voltage reading on ur desktiop shows so...its incorrect and yall need to get off of it...disabling irst is dumb...

We're talking about C6 and C7.

Straight from the Intel Data Sheet:

"C6 - Execution cores in this state save their architectural state before removing core voltage."

"Core C6 State - Individual threads of a core can enter the C6 state by initiating a P_LVL3 I/O read or an MWAIT(C6) instruction. Before entering core C6 state, the core will save its architectural state to a dedicated SRAM. Once complete, a core will have its voltage reduced to zero volts."

"In package C6 state all cores have saved their architectural state and have had their core voltages reduced to zero volts."

So the Intel engineers are also wrong, right? lachen.gif
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post #11369 of 19539
Quote:
Originally Posted by twerk View Post

Just cause you're jealous. wink.gif
thank you.
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post #11370 of 19539
Quote:
Originally Posted by GeneO View Post

? How do you disable IRST from BIOS? I have always used IRST and see voltages drop to 0 volts with C6/C7 enabled.

EDIT:

where did that post I was replying to go...?

Mehh, it was removed along the other posts...
Anyhow, here's what I experienced while playing with IRST dynamic storage accelerator. (Not totally disabling IRST)




EDIT: Check the Min Vcore in both pictures. And I didn't mean to totally disable IRST in previous post sorry if I mislead you however this is a more accurate explanation.
Edited by Zahix - 3/21/14 at 5:28pm
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