13900k Boost Issue/Question

StAndrew · Feb 13, 2023

I have a direct die cooled 13900k, 107SP P core and my current multiplier overclock settings are:

60
60
58
58
57
57
55
55

Thermal velocity boost x2 is enabled and I've increased the temperature threshold by 10*C

R23 multi-thread see a 5.6GHz all core at about 71*C for about a 40,900ish score which is about what I would expect.

Buy R23 single-thread hardly ever boosts higher than 5.7GHz at around 55-60*C on the loaded core for about a 2,200 score.

Gaming also has clocks stuck at 5.7GHz with an occasional boost to 5.8GHz.

The only time I see the CPU boost to 6.0 and 6.2 is when idle...

What am I missing here?

The Pook · Feb 13, 2023

that's how turbo works.

StAndrew · Feb 13, 2023

The Pook said:
that's how turbo works.

I don't get it. I'm only loading 1 core in R23 so it should boost to at least 6.0, or is that what I'm missing?

The Pook · Feb 13, 2023

the other cores are still doing something. the other cores don't have to be at 100% to reduce turbo, they just have to be >0%.

StAndrew · Feb 13, 2023

The Pook said:
the other cores are still doing something. the other cores don't have to be at 100% to reduce turbo, they just have to be >0%.

Welp, time for more voltage and more multipliers.

digitalfrost · Feb 13, 2023

Anything above 4 core ratio is hardly usable for me as I have so much stuff running in the background.

GRABibus · Feb 13, 2023

StAndrew said:
I have a direct die cooled 13900k, 107SP P core and my current multiplier overclock settings are:

60
60
58
58
57
57
55
55

Thermal velocity boost x2 is enabled and I've increased the temperature threshold by 10*C

R23 multi-thread see a 5.6GHz all core at about 71*C for about a 40,900ish score which is about what I would expect.

Buy R23 single-thread hardly ever boosts higher than 5.7GHz at around 55-60*C on the loaded core for about a 2,200 score.

Gaming also has clocks stuck at 5.7GHz with an occasional boost to 5.8GHz.

The only time I see the CPU boost to 6.0 and 6.2 is when idle...

What am I missing here?

You will get 6GHz when launching your web browser or other any very low load.

‘CineBench single thread is not a very low load and as explained before, roughly all other cores are working.

StAndrew · Feb 13, 2023

GRABibus said:
You will get 6GHz when launching your web browser or other any very low load.

‘CineBench single thread is not a very low load and as explained before, roughly all other cores are working.

I got it but it's defaulting down to 8 active core speeds. With TVB +2, it should be at least running at 5800-6000 easy. Temps are well within threshold; the loaded core is is steady at 55-60*C and the rest of the CPU is in the 30's. Gaming is the same, temps are in the 50's and the CPU sticks to 5.7 when I would expect speeds to be at least jumping up to 5.8-5.9.

I'll monkey with it a bit more but I feel like there is a setting somewhere that I'm missing. I might try with TVB disabled and just increase the multipliers.

StAndrew · Feb 14, 2023

I disabled TVB and increased the base multipliers and it's running a lot better now.

CarSalesman · Feb 14, 2023

Set priority of Cinebench to Realtime in details tab of Task Manager. I found it kept my higher cores boosted longer. 2370 score with my 13700KF @ 5994MHz.

StAndrew · Feb 15, 2023

Rectangle Screenshot Font Chair Software

Screenshot Rectangle Font Chair Software

CarSalesman said:
Set priority of Cinebench to Realtime in details tab of Task Manager. I found it kept my higher cores boosted longer. 2370 score with my 13700KF @ 5994MHz.

Didn't make a big difference for single thread but certainly helped with the multithread benchmark.

Rectangle Screenshot Chair Font Software

CarSalesman · Feb 15, 2023

Nice. 120 pts on single core score is actually a pretty big pickup. That's like picking up 200-400 MHz clock speed.

athenaesword · Feb 15, 2023

StAndrew said:
I disabled TVB and increased the base multipliers and it's running a lot better now.

do you find this to be the better daily set up? i'm toying with this too. seems pointless to need 6ghz when opening webbrowser.

StAndrew · Feb 15, 2023

CarSalesman said:
Nice. 120 pts on single core score is actually a pretty big pickup. That's like picking up 200-400 MHz clock speed.

Yes. With TVB enabled the single core R23 was down clocking to 5.7. I disabled TVB and it the CPU now follows the bios boost profile a lot better.

Oddly enough, even with TVB disabled, it's still clocking up to 6.2.

athenaesword said:
do you find this to be the better daily set up? i'm toying with this too. seems pointless to need 6ghz when opening webbrowser.

I don't notice any difference from stock speeds TBH; maybe a little more performance in Total War games (RTX 3090 @ 4k - I'm a bit GPU bound). If you have the cooling headroom, then why not overclock it and get your monies worth? But no, its not going to open a web browser faster.

athenaesword · Feb 16, 2023

StAndrew said:
Yes. With TVB enabled the single core R23 was down clocking to 5.7. I disabled TVB and it the CPU now follows the bios boost profile a lot better.

Oddly enough, even with TVB disabled, it's still clocking up to 6.2.

I don't notice any difference from stock speeds TBH; maybe a little more performance in Total War games (RTX 3090 @ 4k - I'm a bit GPU bound). If you have the cooling headroom, then why not overclock it and get your monies worth? But no, its not going to open a web browser faster.

oh i meant do you prefer to disable tvb for daily like what you've done here, after trying out both. are you more satisfied with the OC this way overall other than in r23.

StAndrew · Feb 16, 2023

athenaesword said:
oh i meant do you prefer to disable tvb for daily like what you've done here, after trying out both. are you more satisfied with the OC this way overall other than in r23.

Yes it boosts better with TVB disabled for since reason.

athenaesword · Feb 16, 2023

StAndrew said:
Yes it boosts better with TVB disabled for since reason.

btw you leave c-states on sir?

StAndrew · Feb 16, 2023

athenaesword said:
btw you leave c-states on sir?

I do but I don't enable advanced C-State. Some people recommend it, some don't, its just a force of habit for me to disable it.

athenaesword · Feb 16, 2023

StAndrew said:
I do but I don't enable advanced C-State. Some people recommend it, some don't, its just a force of habit for me to disable it.

last questions bear with me - did you adjust your v/f curve/ac_ll when u turned off tvb and bumped the core ratios up? and did you also bump the 8-core or just left that at 55?
thanks and i apologise for the many questions

StAndrew · Feb 16, 2023

athenaesword said:
last questions bear with me - did you adjust your v/f curve/ac_ll when u turned off tvb and bumped the core ratios up? and did you also bump the 8-core or just left that at 55?
thanks and i apologise for the many questions

No worries, that what these forums are for.

Yes, I used this guide:Asus Maximus Z790 Extreme and Intel i9-13900k - A tuning guide for beginners. | Overclock.net

Tuned my VF curve and loadline (AC_LL and LLC voltages). I had to study it for about 3 days and read it a few times over before I felt comfortable enough.

13900k Boost Issue/Question

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