Assistance Adjusting LLC + Adaptive Voltages

Sep 13, 2018
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Hey guys,

First time posting on Tomshardware, been active a lot over the past years just decided to make an account.

Here's my setup:

CPU: i7 6700k (OC'd to 4.5 Ghz)
Mobo: Asus Z270-K
RAM: Kingston 2133 Mhz 8 Gb (1 Stick)
Cooler: EVGA CLC 240mm

First time overclocking I've done a lot of research and gotten the hang of it quite quick. Im not new to computers at all regarding hardware but pretty new to BIOS modifications and features.

Currently Im running Adaptive Mode with + 0.250, an offset of 0.05 to cap my V at 1.255. Im pretty paranoid about my temps and stability. I've played around with LLC and ran some Prime95 but my Temps instantly jump to around 80 degrees as I run the test, on my Package and Core 0, my other cores are 6-7 degrees lower however.

LLC on Auto - Package Temp slowly goes up from 79 upwards right as I run the test, Voltage capped at 1.255

LLC on level 5 - Same thing.

Now my question is, why are do my temps seem so high considering my cooler is pretty good and its brand new. Is there anything I should try adjust or change to achieve better temps and maintain stability? Im not comfortable with my temps instantly jumping to 79-80 degrees right as I run Prime95. What different LLC settings should I try?

Please give me all the possible information and combinations I could try, Im open to everything and anything

Thanks in advance!

 
Solution
That’s almost a voltage jump of 0.1V, way too high for an overshoot considering you are at LLC5 (1-7) on an asus board. Under full load I’d expect the vdroop to be fairly severe with a 6700k and should see voltage drop below your manual voltage with LLC5 instead of overshoot.

You might want to do a full clear cmos battery and try your overclock again from scratch.

Also when you overclock in manual mode , disable CPU SVID Support

larrycumming

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Aug 15, 2018
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Asus mobo's at level 5 is pretty safe I believe they are 1-7 levels and 7 being highest LLC.

Some online benchmark reviews set LLC=6 but it comes down to your own specific cpu sample.

Did you set a max value for adaptive mode? that's one way to keep a cap on the voltage, instead of using adaptive mode offset.


You should also adjust your current settings. I like to leave mine at 120% and Optimized (asus optimized settings) instead of the default Standard.

4.5Ghz OC is an average overclock IMHO but it depends on your cpu sample. I believe on the asus board's auto oc feature 4.5 is rated for liquid cooling , while 4.0 is rated for air cooler, so 80C @ 4.5Ghz running prime95 looks about right to me considering youre using an average liquid cooler.
 
Sep 13, 2018
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Well my temps actually increased running P95 after changing LLC and setting some other things to Manual from Auto.

Before this, i was running a 4.5 Ghz on Manual voltage though during load i was peaking around 1.365-1.385 when i set the value to 1.26, though my temps werent as high as 80

Adaptive offset by the looks of it keeps my voltages at the value i want under full load and dropping depending on cpu usage which is what i want.

Not sure what you mean by the current settings however, im not home either.

I still dont fully understand LLC and Vdroop or any of these terms. Only familiar with it slightly.

I havent noticed much of a difference in the LLC levels except when I put it on Auto at adaptive mode when I blhe screened moment I ran P95
 

larrycumming

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Aug 15, 2018
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Well, in Manual mode your mobo will try to keep voltage constant at the value you entered in bios/uefi.

In Adaptive mode, voltage will vary based on the SVID table in the CPU, it'll rise and fall based on a number of factors such as cpu frequency, temperature, and current.

In Adaptive mode, you should have the option to set a Max turbo voltage, which equates to the maximum voltage the adaptive mode will go to.



 

Anonymouselite5

Distinguished


Im not too sure about adaptive mode, but the way I've done mine is. Just kept it in manual mode. Found my desired voltage I want under load. (minimum CPU will stay stable at) Then set LLC to counteract my voltage dropping below a voltage I know to be stable.

Basically Load line calibration is there to say overshoot voltage so that when the CPU is under load, when a Vdrop happens. This overshoot is meant to act against this drop. To keep the voltages at a level to keep the clocks stable.

Like for instance I know my CPU is stable at stock clocks at 1.20v, and I've set LLC at level 4. So at idle the CPU is at 1.217v and under load this drops to my 1.2v.
On the other side at 4.5Ghz I've set my LLC to level 6. So it will overshoot further than my set manual voltage.
Basically the higher the level the higher it will overshoot your setting in the manual box and less Vdroop will occur, and low settings will have a drop but be closer to your inputted value.

Unsure if this helps.
 
Sep 13, 2018
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Well what Im wondering is, I cant set my voltages to be a certain value at peak on Manual. I set 1.265 on Manual but my voltages spike to around 1.35 in load. How am I supposed to test everything in Manual if the voltages I set arent even the cap.
 

Anonymouselite5

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Try dropping your LLC level.
 

larrycumming

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Aug 15, 2018
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That’s almost a voltage jump of 0.1V, way too high for an overshoot considering you are at LLC5 (1-7) on an asus board. Under full load I’d expect the vdroop to be fairly severe with a 6700k and should see voltage drop below your manual voltage with LLC5 instead of overshoot.

You might want to do a full clear cmos battery and try your overclock again from scratch.

Also when you overclock in manual mode , disable CPU SVID Support
 
Solution

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