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Hot!X299 Dark - Clock speed fluctuates under AVX load while overclocked

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GGTV-Jon
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/15 10:51:13 (permalink)
Willderborn can you post a picture of your CPU OC settings so I can try and match them. And are you still running with C States enabled?


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justin_43
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/15 15:03:24 (permalink)
GGTV-Jon
Willderborn can you post a picture of your CPU OC settings so I can try and match them. And are you still running with C States enabled?



Yeah sure, I'll post pics in a little bit.

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justin_43
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/15 15:13:13 (permalink)
Here are the pics:
 





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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/15 18:43:52 (permalink)
OK, So I took your settings above an applied them to my 9800x and I was able to reproduce the same issue... however I am dont really think there is anything wrong. At first the only software that was picking up these rapid fluctuations in core clock was MSI Afterburner nothing else was showing them. At least not until I decreased the polling rate for HWInfo64 down to every 100ms and even than it was  hard to catch because the frequency in which it was occurring was so quick. In addition I also found that the load being applied to the CPU made a big difference in the rate at which the core clock changes would occur. I attached two screen shots that show this variation in frequency see notes below. 
 
Screen Shots: 
MSI Test One Prime95 - The data to the left of the RED line is the results of running Prime95 with a small data set. The data to the right of the RED line is the results of running Prime95 with a blend test. 
MSI Test Two OCCT - The data to the left of the RED line is the results of running OCCT with a small data set. The data to the right of the RED line is the results of running OCCT with a large data set. 
 
Ultimately I dont think that there is really anything wrong and this is normal I think that it just comes down to how MSI Afterburner is reading the data (polling rate and averaging). If your computer is crashing when those fluctuations I would chalk it up to your OC not being fully stable. Its also important to remember that your CPU is being fed a lot of different data even when you are running something like  Prime95 that used AVX other applications are still running that dont use AVX and the CPU still has to process those as well. 
 
 

Attached Image(s)


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justin_43
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 05:23:04 (permalink)
Wow.. thank you for testing and your analysis. You are probably right in that nothing is wrong. My system no longer crashes even with the fluctuations after stabilizing my OC so I am inclined to agree. It's just strange that it only happens when overclocked. If I do the same test with no OC the clock speed stays steady. But it is good to know that it isn't a problem with my board.

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jasoncodispoti
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 06:55:04 (permalink)
willdearborn
Wow.. thank you for testing and your analysis. You are probably right in that nothing is wrong. My system no longer crashes even with the fluctuations after stabilizing my OC so I am inclined to agree. It's just strange that it only happens when overclocked. If I do the same test with no OC the clock speed stays steady. But it is good to know that it isn't a problem with my board.



I will test again today with everything set to auto and see what happens...

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bcavnaugh
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 07:04:47 (permalink)
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?
post edited by bcavnaugh - 2019/05/16 07:06:54


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jasoncodispoti
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 07:43:38 (permalink)
bcavnaugh
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?




OP was concerned about the rapid fluctuations in CPU core frequency when running AVX loads and at the time was thinking that it was causing his system to be unstable. However it is no longer believed that this is an issue and represents normal operation of the CPU\Motherboard. Also looks like OP established that his OC was not stable and has corrected that as well.
 
This is basically resolved at this point... 
 

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bcavnaugh
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 08:06:28 (permalink)
Unstable?


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jasoncodispoti
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 08:17:46 (permalink)
PC was blue screening when running Prime95. He had the CPU frequency set to 4.6GHz and and an AVX offset of 5 which should have resulted in a core frequency of 4.1GHz. However OP found that MSI Afterburner was showing that when running Prime95 that the CPU frequency was rapidly changing between 4.6GHz and 4.1GHz even though he was running Prime95 with AVX ON. His thinking was that these rapid changes in CPU frequency was resulting in the PC not being stable, but it appears that this is normal and the OC was just not a stable OC (which he has since corrected).  

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justin_43
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 08:27:32 (permalink)
bcavnaugh
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?


If you dont understand what the issue is, why comment? You don't have to comment on every thread, the world will continue to spin whether you do or not. It has been explained multiple times by myself and others.

And the mesh ratio is set to 32 not 35. But have you not heard of overclocking the mesh?

And just because you want to use override instead of adaptive doesnt mean it's right for everyone. You say its recommended. By who? For what scenarios? Override keeps the voltage constant, while adaptive allows the voltage to scale back as needed. System is stable and uses less power.

Thanks for your help Jason. I guess my OCD will just have to live with the clock speed fluctuation now that I know its normal.

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bcavnaugh
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 11:43:32 (permalink)
willdearborn
bcavnaugh
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?


If you dont understand what the issue is, why comment? You don't have to comment on every thread, the world will continue to spin whether you do or not. It has been explained multiple times by myself and others.

And the mesh ratio is set to 32 not 35. But have you not heard of overclocking the mesh?

And just because you want to use override instead of adaptive doesnt mean it's right for everyone. You say its recommended. By who? For what scenarios? Override keeps the voltage constant, while adaptive allows the voltage to scale back as needed. System is stable and uses less power.

Thanks for your help Jason. I guess my OCD will just have to live with the clock speed fluctuation now that I know its normal.

I do and I never read that you had posted you had a BSOD or was Unstable.
And I have been testing and trying your setting to see if any of my X299 Dark Motherboards would show the same.
If you look under Processor you will see the same difference in clocks listed under the Processor - Maximum turbo core clock
Port Royal 430.64 (DX12RT)
https://www.3dmark.com/compare/pr/92524/pr/91940/pr/91866/pr/91672/pr/91648/pr/91609/pr/91536/pr/91472/pr/91295/pr/91255/pr/91234/pr/91192
Time Spy Driver 430.64 (DX12)
https://www.3dmark.com/compare/spy/7189022/spy/7174802/spy/7173893/spy/7172903/spy/7168189/spy/7167597/spy/7166443/spy/7164977/spy/7163687/spy/7158797/spy/7158143/spy/7157270/spy/7156137
Fire Strike Driver 417.22 and 419.35 (DX11)
https://www.3dmark.com/compare/fs/19339923/fs/19324499/fs/19323782/fs/19322782/fs/19317481/fs/19316871/fs/19316105/fs/19314939/fs/19313619/fs/19308679/fs/19307786/fs/19307134/fs/19306258
3DMark 11 Driver 430.64 and 418.91 (DX11)
https://www.3dmark.com/compare/3dm11/13307911/3dm11/13304948/3dm11/13304842/3dm11/13304768/3dm11/13303415/3dm11/13303361/3dm11/13303260/3dm11/13303117/3dm11/13303008/3dm11/13301970/3dm11/13301843/3dm11/13301798/3dm11/13301711
3DMark Vantage Driver 417.71 (DX10)
https://www.3dmark.com/compare/3dmv/5763325/3dmv/5763015/3dmv/5763000/3dmv/5762986/3dmv/5762904/3dmv/5762903/3dmv/5762875/3dmv/5762855/3dmv/5762819/3dmv/5762682/3dmv/5762670/3dmv/5762664
3DMark06 (DX9)
 
My Error 32 and Not 35 
 

 
You say its recommended. By who? TiN_EE if I recall.
But I will pull out and not bother you any longer.
Good luck with your troubleshooting.
 
 
post edited by bcavnaugh - 2019/05/16 13:07:29


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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/16 11:49:36 (permalink)
Wildearborn, I have actually had more success with using the adaptive voltage instead of override when OC the 9800x. Overall I have found OC the 9800x to be time consuming... There are not many of us that have this CPU... I am going to create a separate thread here in the next day or two dedicated to OC the 9800x so we can share results\experiences. 
post edited by jasoncodispoti - 2019/05/16 11:51:43

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cdc-951
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/19 14:00:06 (permalink)
willdearborn
bcavnaugh
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?


If you dont understand what the issue is, why comment? You don't have to comment on every thread, the world will continue to spin whether you do or not. It has been explained multiple times by myself and others.

And the mesh ratio is set to 32 not 35. But have you not heard of overclocking the mesh?

And just because you want to use override instead of adaptive doesnt mean it's right for everyone. You say its recommended. By who? For what scenarios? Override keeps the voltage constant, while adaptive allows the voltage to scale back as needed. System is stable and uses less power.

Thanks for your help Jason. I guess my OCD will just have to live with the clock speed fluctuation now that I know its normal.

Not to take your thread over, but are you having this same issue? I have tried a clean install of windows, to going back to 1.07 bios to 1.17? I think the 9800X handles clocks a bit different to sky lake and evga maybe did not update the firmware correctly ?
https://forums.evga.com/X299-Dark-owners-please-check-in-m2951266.aspx
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jasoncodispoti
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/19 17:49:30 (permalink)
cdc-951
willdearborn
bcavnaugh
Still not seeing what the issue is here and why it is a an issue in the first place.
Also it has been recommended not to use Adaptive on the vCore and to use Override instead.
Why do you have the Mesh Ratio set to 35?


If you dont understand what the issue is, why comment? You don't have to comment on every thread, the world will continue to spin whether you do or not. It has been explained multiple times by myself and others.

And the mesh ratio is set to 32 not 35. But have you not heard of overclocking the mesh?

And just because you want to use override instead of adaptive doesnt mean it's right for everyone. You say its recommended. By who? For what scenarios? Override keeps the voltage constant, while adaptive allows the voltage to scale back as needed. System is stable and uses less power.

Thanks for your help Jason. I guess my OCD will just have to live with the clock speed fluctuation now that I know its normal.

Not to take your thread over, but are you having this same issue? I have tried a clean install of windows, to going back to 1.07 bios to 1.17? I think the 9800X handles clocks a bit different to sky lake and evga maybe did not update the firmware correctly ?
https://forums.evga.com/X299-Dark-owners-please-check-in-m2951266.aspx




The OP of this thread was not having the same issue that you were... is clocks speeds were reporting as expected. He was simply seeing fluctuation due to AVX instructions, see above posts from me for more details. Your issue has basically been resolved after resetting your BIOS back to default\auto settings, unless you have some new data to present. It is highly unlikely at this point that EVGA configured the "firmware" incorrectly, the issue would be reproducible across all systems with the same CPU\Motherboard and as far as I know no one over in your thread has been able to reproduce the issue with there system. Also the Intel Core i7-9800x is a Skylake-X CPU.  
post edited by jasoncodispoti - 2019/05/19 17:59:20

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s.redkin
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Re: X299 Dark - Clock speed fluctuates under AVX load while overclocked 2019/05/27 04:46:20 (permalink)
35 mesh frequency! Is it too high?
And you can reduce the frequency of the processor to 8-10 on AVX3.

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