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Undervolting i9 11900k

Psycrow
Level 11

I got a i9 11900k and a extreme maximus XIII board.

So i found this video on how to lower the volt and get better temps,

https://www.youtube.com/watch?v=QV2x8FzNP1k

But in my bios then the offset voltage is set to auto and i cant change it.

Then the turbo mode cpu voltage is set to 0.250

Do i need to choose the offset menu and then change it to 0.05000 ?

He uses the adaptive mode tho. but i cant change the numbers in that menu.

 

I have seen several other videos where they lower some offset volt with 0.050 called Svid or something.

I cant find these menus in bios. They should be under tweak but it looks different.

You might have seen my video on the Noctua NH-D15S (https://youtu.be/9MGNT7jPfiU) and the temps I got when running Cinebench R23. Cinebench is pretty punishing and with standard settings the Intel Core i9-12900K ran at as much as 98 degrees C. In this video I show you how to undervolt the Intel ...
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Psycrow
Level 11

When i run stress test then the volt dosent go above 1.3800 v

But when the stress test stops then the volt is 1.4400 ish since i use idle cpu power management in windows

Psycrow
Level 11

No one knows how to set a right cpu volt to lower the temps ?

Or dont we do that anymore ?

Hi @Psycrow 

You posted in the customer service enquiry section, which is why nobody from the community has seen or responded to your post. I've moved it for you.

There are multiple ways you can do this.

CPU Core/Cache Voltage > Adaptive
Set Offset Sign >  Negative.
Enter desired negative value.

If applicable to 11th-Gen, Set SVID Behaviour > Best Case scenario.

Test stability

 

 

 

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

Psycrow
Level 11

Ok i see..thx

Psycrow
Level 11

I disabled the multi-core enhancement. That helped with the temps not reaching 95 c
But it also changed the mhz clocks to a lower rate than current set as OC

I have never tryed to change the w rates for anything so im a bit scared and to green for doing that.

Here is what i dont understand.

I have clocked my cpu to run 5300 mhz but i only see my cpu go to 5100 mhz when it loads something in windows.
Currently im using balanced power settings where the cpu idles between 800 mhz and 5100 mhz. So it ramps up and down between these mhz.
I guess the lest 200 mhz from 5100 to 5300 is turbo related.

Using cinebench for testing makes my cpu run 4100 - 4200 mhz stable, but when i stop cinebench from running, then it goes back to the balance state 800 - 5200 mhz
Testing in cinebench gives me 62-70 c using 1.112 v to 1.168 v

When i power up the pc on cold then it starts on 38-40 c and ramps up to 45 - 48 depending if windows loads something in the background. Now im using wallpaper engine and rgb light service from asus crate.
These 2 programs makes my cpu peak up aka why it ramos up to 5100 mhz sometimes. But it never overheats.

So i figure i need to adjust something else in bios ? and im to scared to mess with the watt.

i did try to choose adaptive - offset and used -50 to -75 value but it dident make the temps drop
If i enable multi-core enhancement then the cpu get slike 90-95 c but the mhz increases to 5100 - 4800 ish

So what am i doing wrong here. I just want the cpu to drop 5-10 c and still load at least 5000 - 5100 mhz

The answer is to stop running Cinebench, no need.

13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

Psycrow
Level 11

Edit:
The ofset - power was set to auto, so now its set to ofset - 0.075 and i can see my mhz increased to 4300 and temps 60-65 using cinebench.
But why dosent it ramps up to 5100 or 5300 mhz using stress test ?
Why does it stay on 4100-4300 mhz ?
I dont understand it