all core curve optimizer magnitude 5800x

So, it's been a little bit more than a couple hours, but here we are.So, for a recap, we started with: pbo undervolt - all cores -25 CB R23 MC = 15798 at 84CCB R23 SC = 1603 at 49-51C First of all, like Ben4425 said, I've checked the cooler and re-applied the thermal paste, using the 5 point method, gaining ~ 2C CB R23 MC = 15889 at 82C CB R23 SC = 1612 at 47-49C -4849 Mhz I checked what cores were the best, so i've set -10 for them and -25 to all the others R23 MC = 15794 at 82C R23 SC = 1593 at 51-53C - 4849 Mhz And then i've tried to lower the PBO Limits, ive started with: PPT: 142 - EDC: 120 - TDC: 95 R23 MC = 15775 at 81C R23 SC = 1605 at 51-53C - 4849 Mhz Then PPT: 130 - EDC: 120 - TDC: 95 R23 MC = 15478 at 81C R23 SC = 1599 at 51-53C - 4849 Mhz With those PBO Limits, i've tried to set the Boost Override to +100mhz, it was useless cause it crashed during the multicore;I've set PPT back to 142, crashed again, set all the PBO Limits back to default, crashed again.I think it depends on the overvolt curve that i did, maybe -10 on the best 2 and -25 on the others it's too much for sustaining the +100mhz I've set the PBO Limits back to PPT: 142 - EDC: 120 - TDC: 95, and Boost Override to +50mhz R23 MC = 15480 at 81C R23 SC = 1610 at 4899Mhz and 55C, with a spike of 68C where the windows scheduler went crazy and started to use other 2/3 cores other then the best two. So, at the end of day, I've decided to stick with this configuration:Curve Optimizer: -10 to the 2 best cores, -25 to the othersPBO Limits: PPT: 142 - EDC: 120 - TDC: 95Boost Override 0 I feel like I'm not losing too much on the MC, I've got one of the best SC scores and the temps were low.The funny thing is that the best scores and temps were obtained with -25 to all cores and default PBO Limits lol. Thank to you all guys for the collaboration, cheers <3 EDIT: viewing the guide posted by Ben4425, and seeing other tutorials, I think we can assume that the value of units in the Curve Optimizer Magnitude field it's the same for every Bios (3 to 5 Millivolts)

i limited my PPT/TDC/EDC values in the bios, dropped from 95C to like 84C max, really effective

reddit.com › r/amd › 5800x amd curve optimizer

r/Amd on Reddit: 5800x AMD curve optimizer

February 26, 2021 -

Better temperatures, voltages and results...

This is how I do it https://postimg.cc/MfWCdZGd

Teach me. How do you do it?

Videos

12:57

YouTube

RYZEN 7 5800X PBO Curve Optimizer with RTX 3080 (7 Games / FHD ...

January 17, 2021

02:55

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AMD RYZEN 5600X / 5800X / 5900X / 5950X | AUTO OVERCLOCK /w PBO2 ...

AMD 5800X 5000 Mhz AMD Curve Optimizer Cinebench20 Full Run 4K ...

November 12, 2020

01:02

YouTube

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

November 10, 2020

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Overclock.net

overclock.net › home › forums › amd › amd cpus

AMD 5800X AMD Curve Optimizer Boost set up to 5050Mhz for all cores Cinebench/PC Games | Overclock.net

November 11, 2020 - So basically when all things are good thermal,electrical ETC all cores have the ability to boost up to 5050Mhz. VF-offset curve optimizer chart My 5800X-subject to change with new agesa...

reddit.com › r/amd › 5800x curve optimizer -30 all cores

r/Amd on Reddit: 5800X Curve Optimizer -30 All Cores

September 1, 2021 -

After reading and watching videos, it seems most (if not every body) has miraculous results with reducing heat and power but maintaining performance and frequency.

I've done this and it's almost as if nothing changed. Same heat (80-82c) and same voltages. Did I do something wrong?

I've set PBO to Advanced, then disabled it all through Asrock bios. Then set all core Curve Optimizer to -30.

I'm highly skeptical -30 on all cores is actually stable. Run CoreCycler a few times as a first pass for testing stability. That being said, why is 80c bad for you? AMD has gone on record and said up to 90c is within normal limits. In other words, if you limit the temps below 90c, you're just leaving PBO performance on the table.

The temperature is caused by the power consumption. Curve optimizer will only increase the clock speed at a given voltage, with the end result being a slightly lower voltage, but similar power consumption overall. 82C is perfectly fine, but if you're uncomfortable with it, you can easily set the Platform Thermal Throttle Limit to a lower temperature without losing much performance.

Overclockers UK

forums.overclockers.co.uk › hardware › cpus

5800X Boost set to 5050Mhz all cores with AMD Curve Optimizer | Overclockers UK Forums

December 23, 2020 - The AMD Curve Optimizer can sustain the boost for longer time,where PBO can not all by itself. On the MSI boards you can go up to 500Mhz and I have seen my 5800X hitting 5200Mhz with adjusting the PBO settings that last for a half second boost .

HotHardware

hothardware.com › reviews › amd-power-curve-optimizer-guide-zen-3

Maximizing Ryzen 5000 Performance With AMD Curve Optimizer | HotHardware

Maximizing Ryzen 5000 Performance With AMD Curve Optimizer

AMD's new AGESA update adds simple controls for complex overclocking and under-volting that can bring nice performance gains.

Rating: 5

reddit.com › r/amd › pbo & curve optimiser - ocuk forums - 5800x boost set to 5050mhz all cores with amd curve optimizer

r/Amd on Reddit: PBO & Curve Optimiser - OCUK Forums - 5800X Boost set to 5050Mhz all cores with AMD Curve Optimizer

November 10, 2020 - X570 Tomahawk, D15 cooler, max out at around 80C in CB20, -30 all core curve optimizer with +200 max clock boost. ... https://www.overclock.net/threads/ryzen-9-5950x-curve-optimizer-to-5-1-ghz-pbo-and-overclocking.1774434/#post-28667973 · I wanna hit 702 on cpu-z, I'm getting 650 with 5800X and basically everything on auto.

MSI

forum-en.msi.com › home

AMD 5800X AMD Curve Optimizer Boost set up to ...

November 10, 2020 - MSI Global English Forum

reddit.com › r/overclocking › 5800x optimizer curve -30 all core and max frequency override maxed out but won’t crash no difference in benchmark and scores at all what am i doing wrong?

r/overclocking on Reddit: 5800x optimizer curve -30 all core and max frequency override maxed out but won’t crash no difference in benchmark and scores at all what am I doing wrong?

April 21, 2022 -

I’ve tried to follow a few tutorials but when testing fir stability with cinebench and occt I can’t seem to get any change in performance or stability so I was wondering why No matter what I’m changing in my bios nothing happens to the cpu so maybe I’m doing something wrong. No Instability at all when changing settings so I can’t make any progress in my undervolting journey

You might need to adjust your limits, there are three of them. And yeah, don't expect a miracle with this, you're not likely to get a crazy boost in performance like OC a GPU.

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What motherboard? And you are changing the curve/max freq. override in BIOS, right?

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reddit.com › r/amd › should i be able to hit -30 on per core curve optimizer ( 5800x )?

r/Amd on Reddit: Should I be able to hit -30 on per core Curve Optimizer ( 5800x )?

October 1, 2022 -

As the title states, should I be able to achieve -30 on every core on the per core setting? I noticed in my web research that many are not able to hit -30 on the per core setting like I have it set at. I am happy with my temps and my performance. Cinebench r23 hits 16200-16300 now on multi and my temps hit 77c under load (cinebench) and low 30's-50c normal workloads.

Note: about a month ago when I started adjusting the curve optimizer I could hit -30 all core but nowhere near on the per core method.

Arctic Liquid Freezer ii 420mm on the way, will start maybe pushing things some more once installed

Settings ( I think matter ):

pbo manual: 138 - 95 - 120

curve optimzer: per core, every core set at -30

pbo scalar on auto and no extra boost mhz

cpu voltage - manual: 1.35v soc voltage - manual: 1.25

cpu load line cal: 1 step above auto(medium I believe)

soc : 1 step above auto(regular I believe)

cpu: R7 5800x

mobo: asus x570-p

psu: evga p6 1000w

cooler: cheapy 240mm coolermaster aio

memory: g skill ddr4 ripjaws 3600mhz (timings slightly tighter than xmp)

No. I think I was only able to do -15 all core on mine. I’ve been debating whether I should just run it using eco mode lately which simplifies everything. I only use it for gaming

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The two most preferred cores usually cant be undervolted more than - 5 or - 10 if lucky. The others should go lower but - 30 is a lot to ask.

guru3D Forums

forums.guru3d.com › home › hardware › processors and motherboards amd

Help with 5800x and precision boost 2 curve optimizer | guru3D Forums

December 11, 2020 - It's interesting though that even going via voltage offsets from the PBO optimizer and curve scaling that the 5000 series now has support for doesn't seem to be mitigating it much in this case. Guessing one CCX centers all the heat for the 8-core model but the 5900X with 2x 6-core or the 5950X with 2x 8 core CCX show better results with thermals so something with the 5800X is just off with how much more heat it can produce.

Overclockers UK

forums.overclockers.co.uk › hardware › cpus

Curve optimiser per core - 5800X3D - Help required. | Overclockers UK Forums

April 12, 2025 - as a rule, the strongest cores (numbered in hwinfo64 for example) remain strongest after tuning AND have least headroom for curve optimiser. In my experience it is the weakest cores that can take highest negative curve values, but that only brings them just behind strongest ones. No experience with X3D, but from what Disco_P says, perhaps -30 all core is all you get. Click to expand... The best cores take the lowest offset as they are already good for boost/voltage. Every where CO magnitude is thought of as a voltage reduction, it is and isn't.

Overclock.net

overclock.net › home › forums › amd › amd cpus

5800x high heat and curve optimizer | Overclock.net

@DiceAir Have been playing with CO for a couple of day, I would suggest leaving scalar at auto (or 1x), "Boost override" to whatever max value you want and configure "Curve" in such a way, that the best core/cores have lesser value. For example, I set 2 best cores to -10, next pair to -15 and the worst pair to -20. As soon as i modify scalar, say to 2x, core voltage increases drastically, so unless CPU is LC-ed, i'd stay away from it. 5800X high temps means it pushed closer to max thermal and power limits than other models.

reddit.com › r/gigabytegaming › new bios updates today unlocks curve optimizer for 5800x3d

r/gigabytegaming on Reddit: New bios updates today unlocks curve optimizer for 5800x3d

February 17, 2023 -

Checked today for my mobo B550 Aorus Pro AC and was happy to see a new bios with 5800x3d performance improvements.

Update AMD AGESA V2 1.2.0.8
Optimized performance for 5800X3D

Thank you gigabyte! Now I no longer need to use the PBO2 Tuner app, enjoying good temps on linux right now.

Same for B550I AORUS PRO AX

I have the 5900x but will update my B550 Master

Hardware Canucks

hardwarecanucks.com › home › forums › pc builders & tweakers corner › overclocking, tweaking and benchmarking

5800X Boost set up to 5050 Mhz all cores with AMD Curve Optimizer | Hardware Canucks

November 16, 2020 - https://docs.google.com/spreadsheets/d/e/2PACX-1vRde51vH6MJCMLQPc8cgqqPOVIVsWG1qUOyXWiS4YLQvVSKyfD4DQghgUHb46-VIIzl3BQvX-hYt0D4/pubhtml AMD 5800X AMD Curve Optimizer Boost set up to 5050Mhz for all cores and good temperatures when PC gaming. So basically when all things are good...

reddit.com › r/amd › first time curve optimizer for gaming - 5800x

r/Amd on Reddit: First time curve optimizer for gaming - 5800x

May 27, 2021 -

Hello fellow red teammates

First time i went to a full AMD build with 5800x and rx 6800XT, and with it i had a hard time learning all the different stuff amd has when it comes to CPU tweaking

I only use the PC for hardcore gaming, mostly warzone, and while performance wise im getting very good results.

My cpu sits arround 65C max temps and pushing clocks at 4.5-4.6 ghz.

After so much reading about curve optimizer and undervolting, from my understanding i might be able to get the same or even better performance setting PBO with a negative offset in curve optimizer, while using less voltage on the CPU, and so, lower temps, which might increase the CPU's lifespam.

Since it will be my first time messing arround with this kind of settings i was hopping you guys could give me some advices on the best settings for it and if this video is a good guide for it https://www.youtube.com/watch?v=dfkrp25dpQ0&t=168s

My full specs:

5800X

MSI Gaming Trio 6800XT

32gb Ram 3600 cl16

gigabyte aorus 800w gold +

Asus x570 Tuf Gaming

AIO MSI MAG 360

Thanks in advance

This guide is better. https://youtu.be/dU5qLJqTSAc

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with automatic voltage and 80c you won't hurt your cpu lifespan at all even at 90c, you'll see at worst that you need to decrease your negative offset a little if you were close to the limit after a year or two. I'd recommend using manual PBO limits to get your temps close to 80c after setting your curve for maximum performance

guru3D Forums

forums.guru3d.com › home › hardware › processors and motherboards amd

AMD Curve Optimizer 5800X 5100Mhz | guru3D Forums

October 23, 2024 - In the AMD overclocking section ,go to PBO and set your AMD curve optimizer up negative/positive this will give you normal boost clock EG:5800X boost to 4850Mhz In this section you can add up to 200Mhz it is the same for all motherboards EG: ...

reddit.com › r/amd › 5800x - undervolt and curve optimizer?

r/Amd on Reddit: 5800x - Undervolt AND Curve Optimizer?

February 3, 2023 -

So. im trying to tune my 5800x again...

Seems like i got a potato. Boosts to ~4.8Sc and ~4.6Ac...I can input up to 2ghz on the PBO2 Boost override but after 200mhz nothing changes. Global max is still 5050, some cores touch that but the effective clocks doesn't so i guess it's just streching.The Cpu gets hot (90c) unless i drop the Vcore to about -0.025v, i get higher/same R23 scores for every step down until then (~15000-15500). I know they are supposed to work at that temp, but that seems stupid if i get the same performance for way less wattage and temp. Electricity is expensive nowdays...

Cpu seems to handle ~-30 Co on all cores, maby -28-29 on the two best, but if i drop the Vcore they give me errors way before that.

PPT/TDC/EDC Doesn't seem to matter when i'm optimizing sc, currently running corecycler and try to find the max Co offset on my vcore, i suppose i shoudl lover Vcore until all of them are between -20 and -30, since they max out on stock, meaning they could go to -40-50 if that was an option.

Is this the right way to go? I'we read 10ths of guides but it doesnt click. And Sometimes my changes work and sometimes it just glitches out, having the same options on 2 places int eh UEFI doesn't help either, dunno if i should use the settings under AI Tweaker on Advanced/Amd, Thanks Asus.

Current values on PBO is 120/75/110, but that only comes in to play when i run all core or R23, i'd like to find the core maximums before i start tuning all core.

Also, if i use LLC on Lvl2 or more i just loose performance? Perhaps 100-150 Mhz All core clocks.I have it set to Auto, and CPU and SOC Current are on 110%, i don't think thats a problem when i have PBO limits way under stock.

Specs:

Amd 5800x
Asus Strix 550-F
32gb Corsair LP 3200/Cl16
Gtx 1080
Corsair VS650 (Shit PSU, a bit low voltages)

My Spreadsheet (WIP)

https://docs.google.com/spreadsheets/d/1s2K-KVxXuvtZXVkt9TeCSPYyfYqWUgxZjaBiX7JNEgE/edit?usp=sharing

I'd not touch anything and leave everything on auto and just focus on curve optimizer setting. Under ai tweaker I believe. P.s. change that VS as soon as you get anything newer than that 1080.

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Set everything to default. Run curve optimiser in Ryzen Master. It will give you a good starting point for where your curve should be set. Once done. Run core cylcer and check for errors. Bump up the voltage for any cores throwing errors. Then check all core load with OCCT. This is my method for using CO. My 5800X boosts to 5.05ghz as a result. And runs cooler than stock.

reddit.com › r/overclocking › undervolting/optimiseur de courbe pour ryzen 5800x

r/overclocking on Reddit: Undervolting/Optimiseur de courbe pour Ryzen 5800X

October 25, 2025 -

Salut tout le monde ! C'est mon premier post, alors soyez sympas, hein.

Mon père a récemment amélioré son PC et m'a filé son ancien 5800X et deux barrettes de RAM, ce qui est un sacré coup de pouce par rapport à mon 3700X. J'adore bricoler et j'ai commencé à jouer avec l'optimiseur de courbe par cœur pour maximiser les performances tout en gardant les températures au minimum. Ce 5800X en particulier semble être un gagnant à la loterie du silicium et mon "réglage" actuel est le suivant :

C1 : -27, C2 : -27, C3 : -28, C4 : -18, C5 : -22, C6 : -27, C7 : -27, C8 : -17, comme recommandé par Ryzen Master, mais réglé manuellement dans le BIOS
Carte mère : MSI MPG X570 GAMING PRO CARBON WIFI avec le dernier BIOS
Limite PPT : 150W, Limite TDC : 95 A, Limite EDC : Auto, Precision Boost Overdrive Scalar : 10X, CPU Boost Clock Override : Activé, Max CPU Boost Clock Override (+) : Auto
RAM : 2x Corsair Vengeance LPX 3200Mhz CL16 et 2x Crucial Ballistix 3600Mhz CL16, j'ai reçu les Crucials de mon père et les deux kits fonctionnent maintenant à 3200Mhz 16-18-18-36
Horloges des cœurs rapportées à 4,850Mhz dans HWiNFO, toutes les mentions ultérieures des horloges et des fréquences se réfèrent à l'horloge effective

Dans les charges de jeu plus légères comme Rocket League, les horloges atteignent un maximum entre 4,880-4,983Mhz, tandis que Cinebench R20 et R23 voient des horloges multicœurs autour de 4,675-4,750Mhz avec un seul cœur autour de 4,850Mhz. Dans CPU-Z, le multicœur est d'environ 4,825Mhz et le simple cœur de 4,850Mhz. Je me souviens aussi avoir vu des horloges dépasser les 5Ghz dans Minecraft.

Ce réglage est stable dans R20, R23, Prime95 et CPU-Z, mais provoque parfois des plantages pour des charges plus légères comme Rocket League (parfois juste le programme, d'autres fois tout le système). Ce problème a été résolu en augmentant la tension de "2" pour tous les cœurs dans le BIOS, ce qui maintient les fréquences aux mêmes valeurs pour les charges lourdes, mais les diminue légèrement pour les charges plus légères (max Mhz environ 100 de moins).

TL;DR/Question : Quelqu'un sait-il s'il est préférable d'augmenter les tensions ou de modifier le Max CPU Boost Clock Override ? Mes températures sont sous contrôle (même si j'utilise un H100i de 240 mm qui a presque 15 ans), mais j'aimerais beaucoup entendre une discussion et vos expériences !