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14900KS/Apex Encore - Clock Dropping in games

0121danwilliams84

0121danwilliams84

0121danwilliams84

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Joined
30 Mar 2017
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927
Hi all,

I posted a while ago about clock dropping and stability issues I have had with my 14900KS.

I updated to the latest bios with the 0x129 microcode and have not experienced any instability so far, which is great.

In games I am unable to sustain the x59 all core clock speed. It just bounces around all over the place. I still score around 39K in Cinebench R23. I am not thermal throttling in games.

I have tried undervolting, disabling CEP, C states, AVX offsets, TVB/eTVB. Tried performance and extreme power profiles.

My loadline setting is level 5 (stock) and other than enabling XMP everything is stock in the bios (other than attempted changes above.) My AC/DC loadline matches at 0.73.

In HWInfo64 I get performance limit reasons: IA: Electrical Design Point/Other (ICCmax,PL4,SVID,DDR RAPL), IA: Max Turbo Limit, IA: Thermal Velocity Boost.

Does anyone have any idea how to get the cores to stay at the highest all core level, like I believe they should?

Thank you!
 
Cores will go up and down as load required and is the default behaviour on Intel and AMD, if you want them to stay at the same frequency you'll need to set a manual clock up.
 
Glanza said:
Cores will go up and down as load required and is the default behaviour on Intel and AMD, if you want them to stay at the same frequency you'll need to set a manual clock up.
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I know that the clocks should go up and down in an idle or full load situation (power/temp limited) but they should definitely stay at x59 all core in a gaming workload. I had a 14900K and that always stayed at x57 all core in games.
 
Probably being current throttled. Do an AVX2 stress test in XTU and see what message comes up.

Whats your SP score ? Unless it's god binned/ delidded doubt you will get 5.9 all core on some games/ cinebench.
My new KS is a mediocre bin and throttles down to 57/45 p/e cores to get 42k in cinebench.

It's not correct but try 0.2-0.4 ac_ll and 1.02 dc_ll as a temporary test. It probably wont be stable but you will see your cores hitting and staying at 5.9.
 
momo56 said:
Probably being current throttled. Do an AVX2 stress test in XTU and see what message comes up.

Whats your SP score ? Unless it's god binned/ delidded doubt you will get 5.9 all core on some games/ cinebench.
My new KS is a mediocre bin and throttles down to 57/45 p/e cores to get 42k in cinebench.

It's not correct but try 0.2-0.4 ac_ll and 1.02 dc_ll as a temporary test. It probably wont be stable but you will see your cores hitting and staying at 5.9.
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Thanks for the reply.

Not 100% confident changing the loadline settings.

I have SP 105 score on the 14900KS.

I just presumed I would get the same performance as my old 14900K and the clocks staying at x59 under defaults in the bios.
 
0121danwilliams84 said:
Thanks for the reply.

Not 100% confident changing the loadline settings.

I have SP 105 score on the 14900KS.

I just presumed I would get the same performance as my old 14900K and the clocks staying at x59 under defaults in the bios.
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I wasn't suggesting leaving them at that, change it back after but you will see the clocks stay at 5.9.

Anyway sorry forgot to answer your actual question. Default current is 335 on ASUS iirc. You can try unlimited or max 511.75 to raise clocks but you will 100% be thermal throttling and over 400-450W power usage in cinebench.
 
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momo56 said:
I wasn't suggesting leaving them at that, change it back after but you will see the clocks stay at 5.9.

Anyway sorry forgot to answer your actual question. Default current is 335 on ASUS iirc. You can try unlimited or max 511.75 to raise clocks but you will 100% be thermal throttling and over 400-450W power usage.
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Thanks for the advice anyway.

I just put it to extreme power profile in the bios which is 400a, 320w PL1/2. Still downclocks with that setting though and I don't see it ever go near the limit in games.

Not going to set it unlimited or higher than recommended just in case!
 
0121danwilliams84 said:
Thanks for the advice anyway.

I just put it to extreme power profile in the bios which is 400a, 320w PL1/2. Still downclocks with that setting though and I don't see it ever go near the limit in games.

Not going to set it unlimited or higher than recommended just in case!
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What games btw ? Curious to see for myself.
 
i have a 14900kS with the same SP 105 score as you. To keep the cpu running stable and keep it running at 5.9Ghz( all cores ) with everything like bf2042, geekbench 6, OCCT or msfs2020 for example (excluding cinebench) you're looking at around 460a with 400w PL1/2 with a 1.45v vcore which mine runs at but it is delidded and never goes above 85c with benchmarks, 75c max with games. Without a delid i dont think this kind of power is 100% viable without degrading the cpu. As you've already mentioned you'll not notice any difference when the clocks are lowering to 5.7ghz/5.8ghz when playing your games.
 
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OldBoy75 said:
i have a 14900kS with the same SP 105 score as you. To keep the cpu running stable and keep it running at 5.9Ghz( all cores ) with everything like bf2042, geekbench 6, OCCT or msfs2020 for example (excluding cinebench) you're looking at around 460a with 400w PL1/2 with a 1.45v vcore which mine runs at but it is delidded and never goes above 85c with benchmarks, 75c max with games. Without a delid i dont think this kind of power is 100% viable without degrading the cpu. As you've already mentioned you'll not notice any difference when the clocks are lowering to 5.7ghz/5.8ghz when playing your games.
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Thanks for the info!

In the games I am testing I am not seeing obvious thermal/power/current limits from what I can see. Doesn’t really go over 200a.

My previous 14900k used a similar stock voltage and power and kept x57 all core.

I was wondering if it was something more like an incorrect LLC setting or something that may be holding it back. Going to try and test that next. If that doesn’t work I am out of ideas and will just accept it.
 
0121danwilliams84 said:
Thanks for the reply.

Not 100% confident changing the loadline settings.

I have SP 105 score on the 14900KS.

I just presumed I would get the same performance as my old 14900K and the clocks staying at x59 under defaults in the bios.
Click to expand...
Was thinking of tinkering with the load lines. Would level 6 or 7 be similar to 0.4 rather than messing with the ac dc Loadline?
 
OK, for anyone interested I managed to solve the issue. So, it seems that clock dropping was due to power limits.

I undervolted quite a lot with the intel default extreme profile enabled and at a certain point I am not seeing "Electrical Design Point/Other" performance limits in games. Still hits every now and then when loading or benchmarking.

I think I just need to try and stabilise a good undervolt to avoid hitting current limits.
 
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chaparral said:
Wouldn't he also need to be faffing around to keep 5.9 all core on a 7800X3D ?
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The 7800X3D all core frequency is ~4.8Ghz iirc but the thing is, out of the box with no overclocking it will be generally pretty close (+ or -) to a 14900ks, as the OP seems to have issues with theirs for months now.

The time spent endeavouring to get it stable or working as they expect could probably be better spent enjoying their games.
 
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MartinPrince said:
The 7800X3D all core frequency is ~4.8Ghz iirc but the thing is, out of the box with no overclocking it will be generally pretty close (+ or -) to a 14900ks, as the OP seems to have issues with theirs for months now.

The time spent endeavouring to get it stable or working as they expect could probably be better spent enjoying their games.
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This is definitely true! Spent a long time faffing.

I think it's a skill issue on my side as well though. I think things should work as expected without having to make so many user changes though!
 
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