Help wanted on how to set CPU clock limit/target

[Paul Reiner]

Want to learn how to set a clock limit to my new 14900k CPU


Dear all, last time I overclocked was over a decade ago, I recently got a:

I got a 14900k
On a ROG Dark Hero Z79 board
Using a 1300W PSU
Trident DDR5 6000 RAM 2x 32Gb
And a RTX 4070
CPU Using a 240 AIO cooler

The Stock turbo can boost it up to 6100hz
But at this speed, the Chip gets very hot and throttles. I play game mostly, and the games always crashes with the CPU throttles...

If I disable the Turbo, chip runs at 3.2ghz, at 56'c max for the game with no issues... Though I know I can do better.

I want to set Core speed target/limit to 4.8ghz for all cores. Graphically that should bring chip temp to 80'c on full load and won't throttle/crash during gaming.

Can someone here teach me how I can set the core limit/target to 4.8ghz?

The motherboard BIOS is now full of parameters which wasnt there since 2011, so help is appreciated.

Thanks in advance to whoever that is awesome enough to show me what to change on BIOS, or point to me which Guide I can read to self learn


Thanks a million, you very handsome reader.

 

[EarthDog]

The Stock turbo can boost it up to 6100hz
But at this speed, the Chip gets very hot and throttles.

2x120mm aio for a 14900k... thats part of the issue.

What temps are you actually seeing as it's Normal for these to run into 90s with certain loads.

What games are crashing? UE5 games and these chips aren't playing nice out of the box, so there is a possibility that's part of the issue (or not).

1300W psu????? Brother... you burned money on that purchase. I run a 4090 and 13900k with a 850W unit easily. You could've used a 650W-750w easily and had room for upgrades.

If I was you....

I'd get a better aio to start.

...and/or...

Adjust the power limit down in the BIOS a bit. IIRC that thing is unlimited for both pl1 and pl2. So maybe put a 253W limit on bith and see what happens.

EDIT: Inside of the Extreme Tweaker Section, Internal CPU Power Mgmt (see bottom of this image). This is from the Dark Hero, but a BIOS from late 2023.

EDIT2: Actually, the boost is 'unlimited' out of the gate, then drops to 253W after a few minutes. So, I'd still hard limit to 253W all around and see what happens. I don't think neutering your chip to 4.8 Ghz is the answer.

 

[Paul Reiner]

Thanks. My 1300W PSU was from my previous built, I don't want to buy a new one, hope that is acceptable.

I been testing
And so far I think for some games, hyper threading is what's causing the crashes, after I used project lasso to disable hyper threading for the game, I actually gained fps for some reason.

My current set up, pls feel free to coment.

Vcore offset -0.05V

P-Core x52
E-Core x42
Max CPU cache x45

Cinebench24 multi-core score at 2198
Thermals around 90'C at full load.

Indeed the limited radiator space was an issue. Though I am working with a more limited size restriction now I am in a dorm room of limited space too. So I hope my restrictions aren't being laughed at.

Any comments welcome.

I reckon I can push to x53 or x54?

Though I also value lower voltages for better longevity too. Just want to see am I being too conservative.

 

[Woomack]

5200-5400MHz will probably work at 1.20-1.25V. I would play with an offset like -0.1-0.2V and check how it acts at 5.2-5.4GHz. It will probably give you under 200W during load. These CPUs are power hogs at auto settings or for manual OC with unlocked limits but scale pretty well at lower voltages.

 

[Paul Reiner]

Thank you Woomack.

I have people telling me that all I need to do is to turn off

- Asus multi core enhancement
- Intel adaptive boost technology

And both will already reduce my thermals at stock settings.

Want to do a knowledge check here, does that sound like something I should be doing instead of limiting to a conservative clock?

Asking cause I do not know how it might affect the chip, and I reckon people on this forum all smarter than me.

Post magically merged: Jul 24, 2024

2x120mm aio for a 14900k... thats part of the issue.

What temps are you actually seeing as it's Normal for these to run into 90s with certain loads.

What games are crashing? UE5 games and these chips aren't playing nice out of the box, so there is a possibility that's part of the issue (or not).

1300W psu????? Brother... you burned money on that purchase. I run a 4090 and 13900k with a 850W unit easily. You could've used a 650W-750w easily and had room for upgrades.

If I was you....

I'd get a better aio to start.

...and/or...

Adjust the power limit down in the BIOS a bit. IIRC that thing is unlimited for both pl1 and pl2. So maybe put a 253W limit on bith and see what happens.

EDIT: Inside of the Extreme Tweaker Section, Internal CPU Power Mgmt (see bottom of this image). This is from the Dark Hero, but a BIOS from late 2023.

EDIT2: Actually, the boost is 'unlimited' out of the gate, then drops to 253W after a few minutes. So, I'd still hard limit to 253W all around and see what happens. I don't think neutering your chip to 4.8 Ghz is the answer.

View attachment 367943

So I change ICCmax from auto to 253W?

I suppose no harm testing. Thanks.

 

[Woomack]

I recommend trying all the mentioned options. Then, you will see how your CPU acts and you will know what is good or not. It won't do any harm. In the worst case, you will lose some time, but maybe you will learn something more.
Run hwinfo64 in the background (sensors only), so you see min/max and other values.

All those enhancement options boost limits and may cause instability. I haven't seen problems on my rigs, but it's safer to disable it.
I'm not sure about the adaptive boost. I don't think I heard about problems with that.

I assume a new BIOS version will be released soon, so keep an eye on the ASUS product/support pages. Intel confirmed some microcode issues, so I guess they will provide a fix soon.