I have a gigabyte z790 gaming x ax ddr5, you can try to reduce turbo limits in bios and also change the voltage from auto to normal . With these changes, mine runs max 80c with vcore ~1.224 during a 10-minute cinebench r23 . Your cooler has 260W tdp so I think its enough , I use dark rock pro 4 with 250 W tdp .

 

I have tried looking for a similar settings in my Gigabyte motherboard, but I am not sure which setting does that.

There should be options AC and DC Lite Load, they both should be on the minimum value that the motherboard allows.

 

Interesting.Are you talking about these?

 

I'm not familiar with Gigabyte boards, I guess you should change the voltage or some other options to Auto first in order to be able to change the AC/DC options.
The values should be 1 (0.01mOhm)

 

That's wrong.. you don't want to run AC/DC at both 0.01mOhm. Ideally you want to match DC load line to LLC setting at somewhere around 1.1 mOhm to 1.0 mOhm is recommended. That would correspond to Level 3 or 4 on Asus boards, not sure on Gigabyte. Going a lot lower than that you'll have big overshoot & undershoot in voltage that can cause instability. Then set the AC Load Line as low as it's stable most CPUs can do 0.10 to 0.20 mOmn without issue. This thread details a lot more on this topic and how to properly undervolt with AC/DC loadline.

Asus Maximus Z790 Extreme and Intel i9-13900k - A tuning...

A tuning guide for beginners. Disclaimer ! These settings and methods are outside Intel's specifications, just like any other overclocking method. ---------------------------------------------------- Asus Maximus Z790 extreme & Intel i9-13900k. Introduction: Once again Asus and intel surprise...

www.overclock.net

 

I enabled IT, but cant enter new values , what to do now?

 

I enabled IT, but cant enter new values , what to do now? View attachment 2600456

Select the string and enter the value using the numbers on the keyboard (e.g. 90 = 0.900 mOhm).
This overrides the Auto setting in the previous menu.

Currently (13600k/B660 Gaming X ddr4) I have these settings:

• core voltage mode: adaptive (without offset because it doesn't work due to current bios limitations);
• vcore: normal (reports 1.25v);
• AC_LL: 65;
• DC_LL: 91;
• LLC: low (should be very close to DC_LL);
• PL_1 and PL_2: 181W.

CB32 score around 24000, temperatures below 80°, VID corresponding to Vcore under load, stable system even at low loads.

 

Hmm.. mine is 30-90 and yours is 40-90 which is higher. If you can't find how to enable it I can share my bios values since my temps are normal.

 

So basically i still dont know how to reduce my temps, any suggestions ?

 

AC on 0.01 mohm could be too much for 13900K or 13700K but is perfectly fine for 13600K. DC has nothing to do with the over and undershoot. 1.1 mohm. It will just give a false power readings when is to much higher than AC. On MSI boards CPU Load Lite on Mode 1 is AC/DC Lite Load = 1 on both, which the author refer to.

 

That's why I don't recommend anyone using LL1 (Load Lite)
LL2 is setting AC/DC 10/80, so everyone should be using LL2 or higher

Also use y-cuncher (y-cruncher - A Multi-Threaded Pi Program) for undervolt stability test, simply start it, press 1 (enter) and 0 (enter)
Should let it run at least 30 minutes
Instability appeared within 15 minutes tops.
Also, it reveals memory instability too, so make sure you first stabilize CPU, so run y-cruncher without XMP/Memory overclock.

For my 13700k LL3 is stable.
And also please stick to intel recommended current/power limits if possible for your CPU.

 

I use Prime95 on Small FFTs AVX for hours. Compared to the Prime95 y-crucher is like a spring breeze. CPU Lite Load Mode 2 could be better for 13700K stability but it is unnecessary for 13600K which works on lower frequencies and does not require that higher voltage.

 

No, y-cruncher is perfect because it is also variable load apart from unrealistic small fft avx for hours, depending on load line calibration and ac/dc settings it could be stable in small fft avx for hours but then crash during normal windows operation.

Also I doubt that any CPU would be stable at LL1 unless it's amazing silicone.
It works with predefined V/F curve so it doesn't matter if it's 13600k or 13700k.. mode 1 is very very low.

 

.....

I want to reduce my cpu temps, can someone help me?

.....

The easiest first step would be to test a negative offset with XTU - maybe with -0.050 V.

Most effective Gaming-Uefi-Setting (Gigabyte Z-790, 13700k) I figured out for me at the moment.
Vcore Voltage Mode: Adaptive
Internal CPU Vcore: Normal
Internal CPU Vcore Offset: -0.108V

CPU Internal AC/DC Load line: Power Saving
CPU Vcore Loadline Calibration: Normal


For CinebenchR23 though:
IA VR Config Enable: Enabled
IA AC Loadline: 1
IA DC Loadline: 0 (0 is for Auto, 91 or 92 would be the equivalent value)

CPU Vcore Loadline Calibration: Normal

Vcore Voltage Mode: Adaptive
Internal CPU Vcore: Normal
Internal CPU Vcore Offset: -0.020V

10 Watts less in CinebenchR23 than in the other setting.
The other setting gives me 8 Watts less in Gaming however.


One odd thing I noticed: The IA VR Config Enable settings seem to matter, although they were set on disabled.
I had to load optimized default, when I wanted to change back to the -0.108V-setting.

 

The easiest first step would be to test a negative offset with XTU - maybe with -0.050 V.

Most effective Gaming-Uefi-Setting (Gigabyte Z-790, 13700k) I figured out for me at the moment.
Vcore Voltage Mode: Adaptive
Internal CPU Vcore: Normal
Internal CPU Vcore Offset: -0.108V

CPU Internal AC/DC Load line: Power Saving
CPU Vcore Loadline Calibration: Normal


For CinebenchR23 though:
IA VR Config Enable: Enabled
IA AC Loadline: 1
IA DC Loadline: 0 (0 is for Auto, 91 or 92 would be the equivalent value)

CPU Vcore Loadline Calibration: Normal

Vcore Voltage Mode: Adaptive
Internal CPU Vcore: Normal
Internal CPU Vcore Offset: -0.020V

10 Watts less in CinebenchR23 than in the other setting.
The other setting gives me 8 Watts less in Gaming however.


One odd thing I noticed: The IA VR Config Enable settings seem to matter, although they were set on disabled.
I had to load optimized default, when I wanted to change back to the -0.108V-setting.

What temps do you have and also score in cinebench r23?

 

What’s the paste spread look like on cpu?

 

Y cruncher will probably take 20-30mv more than cb23 for sure.

 

The default AVX offsets are:
13600K "-1"
13700K "-3"
13900K "-5"

The Core i9-13900K has several automatic frequency-boosting technologies for the P-cores. The base configuration isn’t entirely clear to everyone, so I want to give a quick overview.

The P-Core base frequency is 3.0 GHz
The Turbo Boost 2.0 (TBT2) frequency is 5.4 GHz up to 2 active P-cores and 5.3 GHz up to 8 active P-cores. Every P-core can boost to 5.4 GHz.
The Turbo Boost Max 3.0 (TBTM3) frequency is 5.7 GHz, for up to 2 active P-cores. Only the favored cores can boost to 5.7 GHz. The others are limited to 5.4 GHz.
When Thermal Velocity Boost (TVB) is active, the two favored P-cores can boost to 5.8 GHz, and every non-favored P-cores can boost to 5.5 GHz.
When Adaptive Boost Technology (ABT) is enabled, up to 8 P-cores can boost to 5.4 GHz
When both Adaptive Boost Technology and Thermal Velocity Boost are active, up to 8 P-cores can boost to 5.5 GHz.
The AVX negative ratio offset is -5. When the AVX negative ratio offset is activated, the maximum CPU ratio is the Turbo Boost 2.0 limit. The ratio is offset per core from their maximum allowed ratio. So, the favored cores can run up to 5.3 GHz, and the non-favored cores can run up to 5 GHz.

SkatterBencher #49: Intel Core i9-13900K Overclocked to 6100MHz

When you changing the CPU multiplier, the AVX Offset goes to 0 if it's on Auto.

 

The default AVX offsets are:
13600K "-1"
13700K "-3"
13900K "-5"


SkatterBencher #49: Intel Core i9-13900K Overclocked to 6100MHz

When you changing the CPU multiplier, the AVX Offset goes to 0 if it's on Auto.

There is no default AVX offset in any of the CPUs you mentioned as far I know… you can test it I think, set everything to default and run avx workload, note temps, then set it to -1 and test again

I never saw any clock change during avx workload so it seems like bullshit.

 

Guys is this considered as undervolting ? I reduced Dynamic vcore (dvid) - 0.080v .
During cinebench it doesn't even reach 70c with the same result as before ..seems too good to be true and stable.

 

Guys is this considered as undervolting ? I reduced Dynamic vcore (dvid) - 0.080v .
During cinebench it doesn't even reach 70c with the same result as before ..seems too good to be true and stable.

Is that really it? There's quite a few threads around here that say it's much more complicated to do it right, but if all you did is enough that would be good news.

Once i got stumbled upon this (either here or on reddit):

"You set voltage control to Adaptive mode, then set some voltage that's needed for low load workload, then you use AC Loadline (Lite Load Contol set to Advanced) to bump voltage for all core workload (AC Loadline is a coefficient that rises voltage in relation to power draw) and keep balancing these until you've got a stable, satisfying result. DC Loadline is required to be set correctly and in accordance to impedance introduced by LLC level, setting DC Loadline correctly results in accurate power draw reading, you know DC is set properly, when VID = vcore under all core workload, like Cinebench R23."

- sounds complicated!

Some other time this guide has been suggested to me: forum (the best i can hope for is that google translates it well enough).

 

Seems fine. You can go even further until you reach the point where is unstable.

 

It is already tested. Seems like you have no idea what is AVX workload too.

The AVX workloads that can trigger the offset are stress tests like Prime95 and OCCT. Since people like you think that this can degrade your chip the only workload that you can test AVX offset is the y-cruncher and some other rare benchmarks.

Just read the article that you quoted.

AVX Negative Ratio Offset
AVX negative ratio offset is a feature that allows the CPU to reduce the operating ratio when it detects AVX instructions. It is a valuable tool to achieve maximum performance for both SSE and AVX workloads

While AVX negative ratio offset has been on Intel CPUs for ages, since Alder Lake, there’s been a couple of changes in the behavior. Here are the key things to know:

First, on Raptor Lake, the AVX negative ratio offset is only applied to the P-cores. The E-core frequency is unaffected.
Second, by default, the maximum ratio during an AVX workload is the Turbo Boost 2.0 ratio. If you want an offset of 0, so AVX workload doesn’t reduce the frequency, you’ll need to set 0 manually.
Third, the AVX negative offset is referenced against each core’s maximum ratio limit since Raptor Lake supports per P-core ratio control. That is important if you’re using the Per-Core Ratio Limit function to restrict the worst cores from boosting to the maximum frequency.
Lastly, Intel has changed how it flags an AVX workload. The effect is that some light AVX workloads will no longer trigger the AVX negative offset. We can demonstrate this new behavior using Y-cruncher.
We used the Y-cruncher component tester to test various AVX workloads on the 13900K. Four of the 6 pure AVX2 workloads trigger a frequency reduction when an AVX Negative Ratio is set. For the other two workloads, the frequency remains elevated.

 

BS

You have absolutely no clue.
Even windows uses AVX instructions.
Also, test it yourself.

 

I'm not good at oc, and usually just copy what other people do. I have read all the articles about undervolt, but really I understand very little. Partly, because I don't have a mobo Z, I only have a mobo B 660 and a 13600k cpu. I followed RobertoSampai for simplicity and applicability on my mobo B660. After much time, I found that the LLC approximates AC_LL:0.2 DC_1.02 (I consider RobertoSampai's parameters to be standard). And here are my settings: LLC :6 AC_LL :0.24 DC_LL :1.02 PL1,PL2 =161W,and I welcome any suggestions(I use noctua U12A). and am I doing anything wrong ?

 

although 1.4v or so is higher than it should be, I suspect your case airflow is causing most of the fault, I am using a 1.3v 12700KF on Noctua NH-U12A, which should be at most similar to the AK620, without the contact frame (I discovered the bending issue way too late it was bent already so don't bother with ILM), when tidied up my airflow in antec NX410 my CPU temp averaged out at ~52C in ambient of 24C and peaks are at low 70Cs (which only occur each time in a blink or so). with the D15 level performance spikes up to 90C is abnormal even at that voltage, what's the average temp?

and TBH, since the Tj max which is intel guarantee the life of the CPU under long term load within warranty period, spiking up to 90C in a second or so won't make anything near dangerous and I won't bother too much with it personally

 

Has anyone suggested a simple remount?
I have a 13600k, NH-D15, and Gigabyte Z790 Aorus Elite and at stock/Auto settings it peaks at 70C in CPU heavy games and about 85C in Prime95 Small FTT's.
I can't imagine the Noctua being THAT much better than the DeepCool.