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5800X Boost set to 5050Mhz all cores with AMD Curve Optimizer

You can set CPU override voltage to keep boost clocks ,but the trick is to have enough voltage so you do not get clock stretching. That CPU override voltage would be around 1.325 on my 5800X after voltage drop however I set my CPU.I do not know what the override voltage would be on 5950X to prevent clock stretching.
If you just want temperatures in the 50°C-60°C and do not care much about clock stretching then set CPU Override voltage to 1.25v and check out your boost.

Added CPU override mode screen
 
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If you have CPU offset voltage in override mode set then you will get base clocks. It has to be CPU core voltage override mode that is all I can say to keep your boost clocks. I can make a video if you want.

I made a video ,started in BIOS and set CPU Override voltage only to 1.25v and continuous shot to desktop then HWinfo64 and PC game showing CPU voltage 1.25v and boost still working normal.
 
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Well I can only show a video on how it is supposed to work. We both have MSI Motherboards and I can say I owned MSI X470/X570 and they worked they same.

Any CPU offset voltage does not allow Ryzen 5000 CPU turbo/boost clocks and will fall to base clock. Override voltage is fine. I can say there is 3 AMD overclocking sections on MSI Motherboard,I suggest check them all.
 
Go to BIOS.
Press F6
Set all to optimize defaults and restart back in BIOS.
Do not tough anything but override voltage and put in your desired voltage. If you use CPU 1.22 override voltage you will get clock stretching but it is ok.
Only areas in red 1/2/3/4
 
UK_SPAWN said:
Just another thing regarding this curve optimiser.

Just had an email back from AMD stating using curve optimiser with LLC isnt optimal/reccomended. kind of makes sense as if you are reducing load voltages with curve optimiser then LLC is tring to maintain a higher load voltage... kind of fighting eachother
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Why would anyone use LLC with the Curve optimizer.That be crazy talk :p. I would unplug your reset switch on the case and plug it into the JBAT! so you do not have to remove battery. I am guessing you were not hitting the JBAT! correct,I have messed it up before after I was 100% sure I jump it.


stooeh said:
I tried setting 1.25V core override as per gerard's vid above on my 5800X and it worked as in showed expected boost clocks and did exhibit less performance likely due to clock stretching? (about -400 on multi and -30 on single in R20)

I am using the X570 tomahawk as well though it seems on mine if I enable the PBO feature via OC menu on left button it does nothing and need to enable it within the motherboard settings on top left button. Though I get a BSOD when booting windows using the settings in AMD presentation posted earlier :p
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Yes the 1.25v was just a random number I hit,just to show boost will work with CPU override. It will defiantly clock stretch at that voltage. It could prove useful for those 5800X 90°C temperatures, weird but could work.
 
Guest2 said:
@gerardfraser on your BIOS settings, do you have DigitALL Power all left on auto? This includes settings for LLC and CPU over voltage and under voltage protection.

edit. I have re-read psot 264 and 265 above. Exactly the same issues i'm having. Gerard, which LLC setting do you use as it can't be straight disabled?
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Like I said a few times everything is auto voltages except the BIOS settings I showed in Post #1. I done all auto to keep it simple and not confuse people even more.

Also to not get clock stretching you have enough CPU voltage in override mode. That value would be around 1.33v for everyone without any voltage drops to avoid clock stretching in Override mode. There is no way around this or any kind of magic to not have clock stretching in this override mode on low voltages,just saying it some more.

Frank Andreas Lia said:
I don't think I will bother to do any more testing with this 5950X sample, it's utter shaite. More testing will only give me more frustration. Hopefully I will get my new 5950x sample on Wednesday this week, will get back to you then with the results.
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This is the correct move,I had a 3800XT last month that would crash in Idle ,I returned it. You buy a product if it does not work return it,do not keep buying gear to try to fix it.

Alyjen said:
@gerardfraser question. How exactly do you set up your RAM for these tests? I checked some of the videos, and posts on other forums, and it seems you don't really OC FCLK/ram that much as it's not benefiting 4k much.
I ask because CPU SoC Power in your recent videos is like ~6W, while for higher FCLKs it's more of 25W and it draws from the same limit as CPU
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You are exactly correct ,I did not overclock Ram for any of the test,trying to keep the test simple as possible. ALL test are done at XMP of my currently installed Rank 2 DDR4 CL19 3600Mhz.

Here is a 3800X with DDR4 3866Mhz (1933Mhz FCLK)You can not get any higher on Ryzen 3 FCLK, If you want to check power
 
Alyjen said:
Thanks, exactly what I wanted to check! Sill power pumped into your SoC is noticeably lower than what I see in my case and may other examples. Maybe that's the difference between various motherboard brands, or it's side effect of your tuning.
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Well you can check these if you want. I have owned 6/7 Ryzen CPU's X470/X570 boards blah blah blah. Here is a couple DDR4 Ram clocks

2600X @ 4300Mhz DDR4 3466Mhz MSI X470

3600X @ 4300Mhz DDR4 CL16 4200Mhz MSI X470
 
alec said:
Thats why there is spec and there is silicon lottery. This is overclockers, nothing is guaranteed.

Besides, I am yet to see anyone with a true lemon CPU. All reports of bad cases can be chalked up to motherboard, bios, bios settings, cooling. All Zen 3 are wildly overperforming their spec.
I would even go on a limb and say gerards seemingly stellar results are not so much because of silicon lottery, but because of a very good motherboard.

Btw setting more negative offset on good cores is not always a good idea, whatever the slides say. For me, two good cores I keep at 0 and experiment with worse ones, to bring their actual clocks higher.
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This is 100% correct. I have mentioned this a few times in this thread and I do not have a golden sample on any Ryzen CPU I owned and I owned 6/7 of them in the last 1-2 years but always been suggested I have a golden sample on everyone of them ,which is pure BS and impossible.JMO


xAliasx said:
Thanks for posting your analysis. Was pretty helpful to use the curve optimizer with it. I managed to get -10 on the first 4 cores and -35 on the 5-12 cores with a 100mhz boost on my 5900x. Havent done much stability checks but getting 9000 in Cinebench 20 multi core.

Btw, what was the overlay you had in your games to display the stats? Assuming that is not MSI afterburner.
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Your welcome and it is MSI Afterburner and RTSS Overlay Editor, I done a quick start up guide for the OSD and uploaded it to google drive. Included in the read me a link to the creators tutorials of MSI Afterburner and RTSS Overlay Editor. IF you want to start from scratch his name is Alexey Nicolaychuk just search youtube . https://drive.google.com/file/d/1Flt2EeznPd2HO438678AbjUHnwWf6E6D/view?usp=sharing
 
My CPU is not broken is it,because I seem to be able to hit effective clock 5000Mhz just running some benches and whatever else. Then there is post#1 which is about having a more sustained boost clock with AMD Curve Optimizer over PBO boost.
IF you want all cores to boost to 5000Mhz ,maybe try
Assassin's Creed Valhalla 5800X 5000Mhz all core overclock for some gaming.This is a real all core overclock and I am J/K with this post I quoted but there some crazy things in this thread overall.


 
Yes cheap CPU cooler and the video was 5000Mhz all core.Now even you can do the same thing,add CPU voltage and try if you want. Not recommended for less than crazy people.I am uploading a video with ALL core 5000Mhz with HWinfo64 on,only good for PC gaming and not P95
 
deagle said:
Signed up because this is a quality thread with great info.

I've been tweaking my 5800x for about a week now. PBO even with Curve Optimizer at -10 (30-50mv) will still run 1.38-1.45v in games over a sustained session to hit 4.85GHz on one or two threads. This is with stock power limits and LLC on the lowest setting. All core stress tests were in the 4.4-4.5GHz range ~1.325v.

I settled on a manual overclock of 4.6GHz at 1.26v and it's 100% stable. I lost 250mhz of boost but I dropped temps by 10-20C and power use by at least 10-20W. The stock voltages were even worse without the PBO2 undervolt. Kinda scares me coming from Intel. Maybe this is the new normal but I don't see why I should pick stock PB or PBO2 over the manual OC.
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5800X hits 4850Mhz with AMD Curve Optimizer off and PBO Off. IT is fine to run an all core overclock with lower temperatures ,your not missing anything in performance.

Guest2 said:
Ok, so as I understand it gaming may show all core at 5000Mhz but not actually full load them like say prime or r20 does.
I did try 4.75Ghz manual all core but r20 made it way too toasty.
Gaming must not hit it with a full heavy load ;):eek:
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You need proper cooling even on Intel CPU's ,I would not even run Prime95 on my Intel computers. Now I not trying to be a dick.
 
What is mind boggling to me is that people in this thread are second guessing the hundreds of AMD engineers who actually make the product and have perfect understanding how the CPU works.
 
deagle said:
If you're referring to me, I'm an engineer who questions engineers for a living. But in this case, I'm skeptical about AMD marketing which doesn't have the best track record. I've worked in big tech long enough to trust but verify what I'm being told.

When I see the boost algo use 150mv more than necessary for an all-core CB run, I have to think that it maybe isn't as smart some people believe.
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OK
 
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