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you can use dvid(offset) rather than a fixed voltage,then cpu clocks up and down depending on load,it shouldnt affect stability at all

what you have to do is try and find a good balance of dvid and the right llc level,one that amounts to 1.27v at full 100% load like you had before

use cpu-z and stress the cpu to see how much is being used and adjust the llc level and dvid to suit,you shouldnt need anymore than +0.010v dvid depending on what llc level you use,lower levels will need more dvid and higher levels will need less dvid

to unlock dvid you set cpu voltage to normal
 
Yeah I just tried it out, seems much better way of doing it.

I set it to normal and +0.110V for 4.5GHz, doesn't seem to underclock the CPU much but does lower voltage, at idle it's pulling about 103watt at the wall, with speakers and monitor it's about 150watt. Still not stable but it's not going to be the CPU it's most likely my Samsung Greens are thirsty little buggars.

I'll try 0.010v lol.

Oh also, HWMonitor is the only program that seems to work for me.
 
it should use very little cpu voltage at idle,download aida64 and look in the sensor part,cpu-z doesnt always show the idle cpu clocks


20q10m0.jpg


2u94av7.jpg


cpu uses 6 watts at idle

aslong as eist is enabled it should work,its just fine tuning llc and dvid,i could be wrong on dvid of +0.010v as asus label it differently

whatever stock(normal) cpu voltage it uses in the bios and you need 1.27v to be stable subtract the stable from the normal voltage and enter that amount into dvid
 
I'm using offset of 0.050v high LLC now but I'm thinking I could use 0.000v and extreme LLC. CPUID Hardware Monitor is great, says mine is 9w idle 3.4 for the IA cores, 70Ww under load lol.

Seems a bit buggy this F9b, if I set LLC's to normal they don't correspond in windows. They all end up as extreme except the GPU and VCORE one.
 
what was the last final bios like? if its buggy id flash back,have you adjusted your turbo limits at all? i leave mine as they are untouched and just raise the cpu multiplier,was thinking if you have raised turbo limit cpu will only throttle as low as what you set them at

you can set a minus dvid also -0.010v ect to take off voltage from load
 
I actually disabled the turbo limits because they didn't seem to apply to 4.5GHz? Maybe I'm doing that wrong.

By the way, -0.010v I think, Extreme LLC is 1.27V under load but only 0.91v at idle. I understand how it works now in my head but can't write it down lol. My cpu can run much much lower than it's stock voltage at idle so this is a really good thing you have taught me. :D

What does yours clock down to at idle?

Also, whats the stock voltage on your 2600k? My 3570k is 1.190V I guess that why mine uses 7w idle and not 6w ?

Down to -0.015V DVID not sure how to lower the idle voltage yet I guess I can't if I leave it on normal? DVID is just for load voltage?

Turbo disabled my overclock haha, I guess I have to change the numbers to 45 on the turbo for my cores? :D
 
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Lol that did it. I will rollback to F7 just because of the odd LLC results I'm getting.

Love knowing my chip is at 1600Mhz idle at 0.90V. Lovely!
 
I'm running F7 that I presume is last stable. I never noticed anything over F3 (what the board came with).

My overclock is the same as F3. Using turbo function i'm x40 (4 cores) x41 (3 cores) x42 (2 and 1), this is at v1.128. I have all the C states and EIST on etc. Basically for stock voltage I've managed 300Mhz :rolleyes: To make things even less impressive I'm running a Seasonic X series PSU with some of the best voltage regulation out there.

The program I'm using to test is ycruncher, if I use Cinebench I can overclock higher. Ycruncher puts another 5 degrees load on CPU cores over Cinebench. Max core temp is 61c using an Arctic i30 @50% fan load.

This computer will be used for processing data in 24/7 operation and accessed by remote desktop. I understand I can increase voltages however am aiming to keep cores well under Intels stated 67c core limit.
 
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The voltages idle and load usually scale slightly in what you set in dvid,at 4.5ghz I need 1.32v CPU voltage,it drops below 1v at idle,I forget what my stock voltage is

If you lower your turbo limits to CPU stock clock,around 30-32 and keep CPU multi at 45 that's how I have mine
 
Oh I see, I had to set mine to 45 to get my cpu to clock at 4.5 even with multi at 45. :S

Think I'm going back to F9b in a moment, F7 isn't liking the nice overclock I got on the F9b, also the F9b has something added for Thunderbolt, though I don't have any use for that.

Thanks for the input JasonM. :D F7 is the last stable yes. :)

Hrm, actually it did overclock, but with the offset that low in the F7, the BIOS will hang randomly. Didn't do that on the F9b maybe it's one of the fixes? The F7 seems to hang for me unless I have the voltage up.

***The LLC issue I had is the same in the F7/F9b BIOS - in 3D power it says all but IGPU LLC are set to extreme, which they are. Kinda annoying as it adds .1v to everything under load. This is with everything set to "Standard" or "Normal" in BIOS.

Oops, this setting works fine if I set it to "Standard", if set to "Normal" it defaults to Extreme LLC. Stress testing at 1.25v now, lowering the LLC every 5 min or so.
 
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Why is it that people say IBT is bad for lifespan of the CPU?I don't see how it can be but lots of people have told me this. It's stable at load, but at idle when it's undervolted it seems to crash on me, I'm trying raising the DVID and lowering the LLC to try stabilize it on desktop lol. It's fine on Prime95 I can give IBT a go though, it's harsh that program I trust it for stability.
 
BrianB said:
Why is it that people say IBT is bad for lifespan of the CPU?I don't see how it can be but lots of people have told me this. It's stable at load, but at idle when it's undervolted it seems to crash on me, I'm trying raising the DVID and lowering the LLC to try stabilize it on desktop lol. It's fine on Prime95 I can give IBT a go though, it's harsh that program I trust it for stability.
Click to expand...

I think it's because with IB chips, IBT really can make the core temps absolutely skyrocket compared to Prime95.
 
Yeah it's much hotter than Prime95. Thanks Stulid, I thought maybe it was to do with it asking the cpu to do things it shouldn't.

5 runs passed on very high max temp was 81c but that core is 5c away from the rest and core 0 was only 70c. Voltage went up to 1.3v not sure if that's too much for IB under air, the power phase voltage was 73c at highest which is a lot more than when I run Prime95, which is usually 60c max! I think the problem I have is when idle the cpu isn't stable, which to me is very odd. I don't want to turn off EIST because I can save my family some electricity...

Lol, now I am raising the DVID because lowering it makes it unstable at idle.

So far so good at +0.20v or so, with turbo llc. :)
 
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Any idea how to raise the idle volts? Should I just disable EIST again? If I play game with P95 running, it's fine, if I take the load off and voltage drops it will crash apps. Apparently the positive offset voltage affects the idle volts too, hope it works.
 
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0.050v seems to have done it, maybe a bit lower, it's stable 10 runs IBT at 1.25v load. Well pleased! :D

I wasn't used to this because I've been used to overclocking Socket 775, which was pretty much just FSB and voltage.
 
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