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post #8701 of 17475
Quote:
Originally Posted by gupsterg View Post

Quote:
Originally Posted by Timur Born View Post

In the end everyone has to measure this on their own.

Agree, everyone has their own right to choose what they do.
Quote:
Originally Posted by Reikoji View Post

Monitoring software cant poll fast enough

Agree, I reckon all we know is where we are in a "ballpark area".
Quote:
Originally Posted by Raja@ASUS View Post

This is where elementary understanding of LLC helps. You just need to set the correct VID to get the required load voltage. Nothing else to it, really.

Thank you, this is what The Stilt advised as well to members.

On this platform I have found no reason to mess with LLC options at all. Typically set voltage is load voltage from my experience.
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post #8702 of 17475
Quote:
Originally Posted by Johan45 View Post

On this platform I have found no reason to mess with LLC options at all. Typically set voltage is load voltage from my experience.

That hasnt been remotely true for my findings. The image below is a brand new flash with all auto settings except for 3200 ram strap; there is a significant delta between idle and load using auto LLC.

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post #8703 of 17475
Quote:
Originally Posted by madweazl View Post

That hasnt been remotely true for my findings. The image below is a brand new flash with all auto settings except for 3200 ram strap; there is a significant delta between idle and load using auto LLC.


Well when using pstates obviously your idle voltage is going to change. For me on llc auto i go from 1.256 at total idle to 1.199 at full load. Considering its stable I'm not even worried about LLC.
    
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post #8704 of 17475
Quote:
Originally Posted by bluej511 View Post

Well when using pstates obviously your idle voltage is going to change. For me on llc auto i go from 1.256 at total idle to 1.199 at full load. Considering its stable I'm not even worried about LLC.

But this really applies to every OC method. Even if one used Pstates, if they needed better at-load voltage and wanted to stick with LLC1, then they would end up raising the voltages of all of the P-states as well, as offset applies to them as well. So in order to keep those low as well, there is greater LLC.

I've got to set 1.5v to get 4150 to the same load-voltage as 1.45 with LLC3. When considering CPU current, 1.5v LLC1 i topped 110A during realbench. 1.45v LLC3 was 112A.
post #8705 of 17475
Quote:
Originally Posted by S1L3N7D3A7H View Post

Even if one used Pstates, if they needed better at-load voltage and wanted to stick with LLC1, then they would end up raising the voltages of all of the P-states as well, as offset applies to them as well. So in order to keep those low as well, there is greater LLC.

At least as long as we can't change the VID of p0 directly. I hope this will work soon, would be a great feature.
post #8706 of 17475
Quote:
Originally Posted by Johan45 View Post

On this platform I have found no reason to mess with LLC options at all. Typically set voltage is load voltage from my experience.

+rep for experience share thumb.gif .
Quote:
Originally Posted by ShiftyJ View Post

@Elmor

On Bios 0082 my PC will sometimes double boot, change my settings and set my voltage to 1.5v! What is even going on there? This has happened 4 times now and I'm afraid it will degrade my chip.
Quote:
Originally Posted by elmor View Post

Can you give some more details? Settings and where exactly are you seeing 1.5v?

I just had this, never before on say unstable settings for tweaks to RAM / BCLK / CPU OC, etc. IIRC SpecChum, Ubardog and a few others have had this on other UEFI versions perhaps or these newer ones?

Usually I never unhook power from PC when shutdown. I did as wanted to move case to do some tiding up on cabling. The moment I fired her up she went through 3x boots redface.gif, which she never usually does.





ProbeIt VCORE point showed ~1.498V redface.gif .

Attached is zip of UEFI screenies showing what I change from defaults.

0079_UEFI_OC_Setup.zip 2878k .zip file
Edited by gupsterg - 4/12/17 at 7:15am
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post #8707 of 17475
Quote:
Originally Posted by Johan45 View Post

On this platform I have found no reason to mess with LLC options at all. Typically set voltage is load voltage from my experience.

Sounds more like LLC Auto is putting you at LLC5 redface.gif
Quote:
Originally Posted by TwoBeers View Post

At least as long as we can't change the VID of p0 directly. I hope this will work soon, would be a great feature.

Yea, but i'll be wondering when that time comes what voltage changes outside of bios will do. Hopefully it wont be any different than frequency changes when using Pstates.
post #8708 of 17475
Quote:
Originally Posted by Raja@ASUS View Post

Within the context of what is being shown: transient induced excursion is referred to as ringing or oscillation.

Evidently the voltage control is performed as a servo loop (except without mechanical moving parts). In such loops, a reduction of error at the control point requires higher forward loop gain (or even an integrator). The greater the gain or the more integrators used (poles in the complex plane), the more difficult it is to stabilize and the slower it reacts. LLC provides a change in the loop characteristics to reduce the error at a cost of more overshoot.

Generally for best performance and loop stability (that is, optimal pole placement in the complex plane), there will be some overshoot for a step change in command (a change in voltage required to react to a change in current in this case). Examined closely, these overshoots will have ringing following them, but the ringing percentage may be too small to see in a 'scope display.

I am sure that by now Wikipedia has treatments of servo control loop behavior similar to those in servo control and optimal control theory books. Perhaps searching for Type I and for Type II loops will home in on a descriptive web page.
     
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post #8709 of 17475
Quote:
Originally Posted by gupsterg View Post

+rep for experience share thumb.gif .
I just had this, never before on say unstable settings for tweaks to RAM / BCLK / CPU OC, etc. IIRC SpecChum, Ubardog and a few others have had this on other UEFI versions perhaps or these newer ones?

Usually I never unhook power from PC when shutdown. I did as wanted to move case to do some tiding up on cabling. The moment I fired her up she went through 3x boots redface.gif, which she never usually does.





ProbeIt VCORE point showed ~1.498V redface.gif .

Attached is zip of UEFI screenies showing what I change from defaults.

0079_UEFI_OC_Setup.zip 2878k .zip file

On every bios I've used, whenever i shut off the power supply for an extended and turn it back on it does the 3 boot thing as well, but my settings have never changed as a result. I never thought anything of it.

However it wont do it if you reset CMOS after re-applying power to the PSU, it will just do its normal initial long post loop and then force you into bios as normal.
Edited by Reikoji - 4/12/17 at 7:24am
post #8710 of 17475
Quote:
Originally Posted by bluej511 View Post

Well when using pstates obviously your idle voltage is going to change. For me on llc auto i go from 1.256 at total idle to 1.199 at full load. Considering its stable I'm not even worried about LLC.

P-States arent enable by default; that was boost/xfr at work.

Edit: dont think I have an existing image of LLC auto with a manually set voltage for direct comparison but I'll look through my screen captures. This one looks like LLC auto; about 44mv and consistent with what Raja measured LLC 5 at with the o-scope and SVI2 results under load to 1.375v.

33692986751_82f8cea1ed_h.jpg
Edited by madweazl - 4/12/17 at 7:39am
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