5800x (and other Zen 3 chips) PBO settings/Temperature fix

[Mussels]

That much i could think of too , higher clocks = higher voltage but the best cores need more voltage for the same speed , i guess they are programmed with lower VIDs from the factory, i thought they all came with the same VID.

I know from blasting my 1400 and 1700x that not all cores would OC the same, or even come close. Some would do 400MHz higher than others at the same voltage, and the highest clocking ones were not always the best undervolting ones either.

It could be they're the closest to the power delivery and have more stable voltages, or the opposite (the furthest away could have smaller transients, smoothed by the distance) - this stuff would need AMD engineers to know and they don't like sharing without lots and lots of alcohol.

(Disabling cores in the BIOS and OCing with just 1-2 cores active - sketchy barely stable stuff on early AM4)

 

[izy]

I know from blasting my 1400 and 1700x that not all cores would OC the same, or even come close. Some would do 400MHz higher than others at the same voltage, and the highest clocking ones were not always the best undervolting ones either.

It could be they're the closest to the power delivery and have more stable voltages, or the opposite (the furthest away could have smaller transients, smoothed by the distance) - this stuff would need AMD engineers to know and they don't like sharing without lots and lots of alcohol.

(Disabling cores in the BIOS and OCing with just 1-2 cores active - sketchy barely stable stuff on early AM4)

I had an 1700x too and it was the same for me , some cores wouldnt go higher so the max all core OC had to be done to what the bad cores could do , i remember i had one bad core that wouldnt go higher even i was pumping more volts but maybe its different for zen3 or zen4 even.
If its not like what this guys said that "The best cores have lower VIDs for each frequency step" and all steps are the same maybe the factory tune for 5700x was made like for a 5800x or something , i just tested my 5700x in OCCT all core load memory test, they all boost to 4725 - 4750 with the same vids , 1,300v - 1,313v - 1,319v - 1,325v - 1,331v, all the cores fluctuating on this values the same way.

(they all go 4850mhz , i started the all core test before all of them got to boost to max)

 

[Thelost41]

Benim de 1700x'im vardı ve benim için de aynıydı, bazı çekirdekler daha yükseğe çıkmıyordu, bu yüzden kötü çekirdeklerin yapabileceği maksimum tüm çekirdek OC'nin yapılması gerekiyordu, ben bile daha yükseğe çıkamayan kötü bir çekirdeğim olduğunu hatırlıyorum. daha fazla volt pompalıyor ama belki zen3 veya zen4 için farklıdır.
Bu adamların söylediği gibi değilse, "En iyi çekirdekler her frekans adımı için daha düşük VID'lere sahiptir" ve tüm adımlar aynıysa, belki 5700x için fabrika ayarı 5800x veya benzeri bir şey için yapılmış olabilir, 5700x'imi az önce OCCT'de test ettim. çekirdek yük hafızası testi, hepsi aynı videolarla 4725 - 4750'ye yükseliyor, 1,300v - 1,313v - 1,319v - 1,325v - 1,331v, tüm çekirdekler bu değerlerde aynı şekilde dalgalanıyor.
View attachment 326583View attachment 326585View attachment 326584
(hepsi 4850mhz'e gidiyor, hepsi maksimuma çıkmadan önce tüm çekirdek testine başladım)

What is your Cinebench R23 score in these settings?

The scores I got in my own system with all cores at 4.8 ghz 1.300v are as follows:

 

[izy]

What is your Cinebench R23 score in these settings?

The scores I got in my own system with all cores at 4.8 ghz 1.300v are as follows:

I dont have CB R23 now but i have a pic from when i tested a time ago, think i had the "bad cores" at -27 back then and only 2 stick of RAM at lower CL.

 

[Waldorf]

Any gains for gaming raising limits?
i have no prob on the hw/power/temp side, so i tried a couple of things to find out max draw (180 PP, 200 PPT, 160 TDC, 200 EDC, +50mhz, 1x.)
dont want to mess with CO (for now), just trying to tweak things a bit, not going for lowest (temps/power),
but not interested in wasting things either (e.g. +20% power for 1% in perf).

once i have a gimbal (phone) or drone again, i will start doing editing/encoding, but for now its mainly gaming.

 

[izy]

Any gains for gaming raising limits?
i have no prob on the hw/power/temp side, so i tried a couple of things to find out max draw (180 PP, 200 PPT, 160 TDC, 200 EDC, +50mhz, 1x.)
dont want to mess with CO (for now), just trying to tweak things a bit, not going for lowest (temps/power),
but not interested in wasting things either (e.g. +20% power for 1% in perf).

once i have a gimbal (phone) or drone again, i will start doing editing/encoding, but for now its mainly gaming.

Gaming can benefit more from CO + AutoOC (higher frequency) , i think you can safely do a -15 all core if not even -20 and you should use AutoOC +200 , i see no reason why not, with only -50 AutoOC you prob can even do -25 -30 and you should leave the scalar on Auto (it reports as 1x anyway) , more draw its not more performance in general , there is a sweet spot, my PBO is 140W PPT - 95A TDC - 120A EDC, it doesnt go more than 80C-84C in any demanding all core stress tests even over night from what ive tested, more like 79-80C.

 

[Thelost41]

Proving to him who the boss is

 

[Waldorf]

@izy
already seen more than 1x and 25-50Mhz offset dont gain much.

just not running the same chip as you, and i expect a little more variation between cores,
at least from the perf spread i have seen during ram (HCI) testing.
most stuff runs on 2K/4K, so less gains there anyway.

temps arent the issue (custom loop), its more that i dont want to have to go back and forth between
changing settings/testing for (possibly) "unnoticeable" gains.

 

[Kursah]

I have some work to do and may need some pointers and guidance.

But first, I wanted to ask if I'm at a loss because I'm on an X370 board (system specs are up-to-date)?

I've never really invested time tuning this build...originally bought it used off of TPU years ago with a 2700X and some G.Skill DDR4 3000 that eventually went bad. Snagged a 5800X and 32GB TEAMGROUP T-Force Vulcan Z DDR4 4000 (currently at 3600 CL18). For what it is, it has been pretty decent and super reliable.

I'm running a Noctua U14S (2013 edition) with a 2nd fan, I've loved this cooler since I purchased it for my 4770K then 4790K back in the 2013/14 timeframe. I do have spare Thermalright Peerless Assassin 120 SE ARGB I may test at some point. On the Noctua, I kick up to 100% fan speed at 60C. Updated my MB's BIOS to 6203 to the latest which includes AGESA 1.2.0.A.

I did adjust the curve to -30. PBO is enabled, which is default, as-is most everything else. I'll be looking into messing with the other settings to keep my temps down (I got up to 83C on Cinebench 2024 and 86C on Cinebench R23, but this is also with the case fans on my Corsair 600C at low speed.).

Memory has been touch and go, can't get DOCP for DDR4 4000 to post, nor when I try manual 3800. 3600 I can get, but not with CL16. Granted I only tried for about an hour last night, and only messed with core timings and DDR voltage up to 1.40v. ATM I'm at 3600 at 18 20 20 20 42 1.35v. Nothing special.

I admit great ignorance in tuning these...but now that my son's both have upgraded Intel-based systems (in sig), it'd be nice to get a little more pep in my PC's step. I'm going to go back through this topic from the OP. I don't expect to keep up in actual benches or gaming performance necessarily, but I'd like to get this thing tuned to do better than it is now if possible. I know leaving PBO enabled for OC makes sense... I'll spend some more time tuning memory.

I ran Cinebench 2024 and R23. Was kinda disappointing to see I couldn't match the 5800X on that, but I know YMMV and running an older board may have me at a disadvantage. Also, this was kind of a baseline run, as I've been running with this general setting for a bit now...most recently updating the BIOS last night and tightening timing from 18 22 22 44 to 18 20 20 42.

 

[Mazer]

I set -10 all core left everything else on auto (scalar, no boost override, default mobo settings) it seems stable, even did time spy run no crashing or instability with -10 to all cores, my other 5600x did -18 all cores but I don't think it's going to work on this 8 core chip on a single tower cooler hitting 83c.

 

[cyx2111]

So my friend. You have good score in CB but your temps still higher. Best way UnderVolting Per Core not All cores for more performance and better temperatures.
On my 5800X i use PBO2 - UnderVolt "PER CORE" not all cores bcs any core behaves different.

Core1 to Core5 -28 - Core6: -5 (sensitivity core) and the 2 best cores Core7-8: -18. I have max 76c in benchmarks and max 67c on any AAA Game with RTX 3070 Ti OC (3440x1440p)
PPT: 120W - TDC: 85A - EDC: 130A using one of the best Top3 mobo B550 platform the Asus RogStrix B550 E-Gaming (not F). Αlso Ι use it on all my computers my favorite brand of AIO the Arctic.de
The Arctic Freezer III 360 (New model - Hot price right now 85€ only via website) - Arctic Freezer II 420 - Artic Freezer II 360.

PBO Boost: Disable
Scalar: Auto or x1 (Better Auto)
Global C-State: Disable
Power Options in Windows: CPU Power min 5% - 100% max (for better idle temps)
AIO Curve: 25C - 40%
50C - 60%
75C - 100%

My Best score in CBR23: 15.748

U can try to UnderVolting the 5800X with some programs to find and select the best undervolt for any core.
Εach processor (5800Χ) it's different, it works and behaves differently...you understand me.

HarrisK.
Tech Writter of X-Treme PC Build
Ookla Analytics

 

[izy]

I am using more or less same settings on my 5700x as @cyx2111 from a long time now and it works great, setting "per core" CO is what you want to use if you have time to play with it.

 

[cyx2111]

I am using more or less same settings on my 5700x as @cyx2111 from a long time now and it works great, setting "per core" CO is what you want to use if you have time to play with it.

Yes my friend need time to make it per core. More Time and patience. For the 5700x with the Arctic Freezer II or III no need UnderVolt. Only PBO Disable. Οf course it assumes good case and good airflow.

 

[Waldorf]

@cyx2111
you need to refresh some of your info.

per AMD you want the cpu min set to 99 and max to 100% (using balanced profile), so its using its own "regulation", and doesnt have to rely on win.
if you need this to drop temps, get a better cooling solution or change Voltages.

PBO is disabled by default (AUTO), so no need to change it to disabled. if you had tested before/after, you would have seen same power limits,
but still not recommending to use disabled (vs auto), as some boards will turn off all safety limits.

ignoring for a moment that you dont need to set any cooling for "100%" at low temps, they are designed to boost up until 90C,
so running any cooler at max speed below 90C (maybe 80C) is a waste, and will only generate needlessly loud "fans".

 

[cyx2111]

@cyx2111
you need to refresh some of your info.

per AMD you want the cpu min set to 99 and max to 100%, so its using its own "regulation", and doesnt have to rely on win.
if you need this to drop temps, get a better cooling solution or change Vs

PBO is disabled by default (AUTO), so no need to change it to disabled. if you had tested before/after, you would have seen same power limits,
but still not recommending to use disabled (vs auto), as some boards will turn of safety limits.

ignoring for a moment that you dont need to set any cooling for "100%" at low temps, they are designed to boost up until 90C,
so running any cooler at max below 90C (maybe 80C) is a waste, and will only generate needlessly loud "fans".

Greetings to Ibiza
Yes...need to change some infos of my last post.

Power Options in Windows: 99%min - 100%max (The balance not a different including idle temps)
Global C-State: Auto (Work better on my board)
PBO: I set to advance for PBO2 UnderVolting reasons
Max Temp Limit: 90C

New AIO curve:
20C - 40% (The Arctic AIO's using full speed on Pump theory when you select 40% the AIO fans. The best way all of the AIOs pump need to works 100% for many reasons - Arctic says)
60C - 50%
80% - 100%

Finally I want to work with silent PC (Have x14 Fan Cases including AIO in 1000rpm/1200rpm max. My cooling system is good and the airflow. My results is better with UV per cores vs Stock.
The only freaking problem its my GPU. I have problem with the temps. 86C-88C full load on my RTX 3070 Ti Gigabyte gaming OC (used card). Have UV too 850@1800 for best temps.
Friendly: Harris K

 

[Waldorf]

thanks.
but for things like getting stuff incl pc parts, i wish i was somewhere else (easily +30% more on cost, plus shipping).

if you want to drop temps for idle/low load, use the power savings profile, disable any usb/pcie power saving features, and set min to 0%, max to 50 or 60%.
makes my 5950 run at 30-32*C for browsing/streaming etc.
if you dont have a UPS (and win thinks its a portable pc, showing the battery icon), there are guides online how to make shortcuts that will allow you to switch between power profiles easily.
power plan switching

if you see any usb issues, might need to turn off global c-state again.

and yes, most AIO will have fixed pump speed and only adjust fan rpm, or have fixed profiles (some corsair) like /low/med/high.
i dont remember how the fans are powered on the AF, but you could use a different port on the mb, and use unrestricted out on the pump,
while still being able to reduce fan speed.

is your rad setup as exhaust or blowing inside? mounted to the top/side and exhausting hot air wil drop case temps by about 20-30*C,
and will let other stuff (chipset/pwm/drives/gpu) run much cooler as well, the little increase on the cpu temp is not relevant,
unless your chasing some benchmark records.

 

[cyx2111]

thanks.
but for things like getting stuff incl pc parts, i wish i was somewhere else (easily +30% more on cost, plus shipping).

if you want to drop temps for idle/low load, use the power savings profile, disable any usb/pcie power saving features, and set min to 0%, max to 50 or 60%.
makes my 5950 run at 30-32*C for browsing/streaming etc.
if you dont have a UPS (and win thinks its a portable pc, showing the battery icon), there are guides online how to make shortcuts that will allow you to switch between power profiles easily.
power plan switching

if you see any usb issues, might need to turn off global c-state again.

and yes, most AIO will have fixed pump speed and only adjust fan rpm, or have fixed profiles (some corsair) like /low/med/high.
i dont remember how the fans are powered on the AF, but you could use a different port on the mb, and use unrestricted out on the pump,
while still being able to reduce fan speed.

is your rad setup as exhaust or blowing inside? mounted to the top/side and exhausting hot air wil drop case temps by about 20-30*C,
and will let other stuff (chipset/pwm/drives/gpu) run much cooler as well, the little increase on the cpu temp is not relevant,
unless your chasing some benchmark records.

No need to make switchable shortcut to change my power plans. I'm very comfort and don't have time for this. All of my USB works perfect. No need it. This motherboard, Aorus and MSI expensive models like yours its the top of AM4 (B550 platform)
So! The Corsair AIO's and the 95% of others AIOS using 2 cables - One for the pump and one for the fans. I can use any pwm pin cable to control my pump of Arctic AIO but no needed. This is technic of Arctic. (Im promoter of Arctic.de here in Athens/Greece. Now waiting the 2 new AIOs series and one air fan from Arctic for reviewing.

I'm fanatic of Arctic cooling systems, and have experience in networks from 16 age.
I use the final Drivers of all (chipset, GPU, and from of my mobo and parts with Windows 11 Pro Insider Beta Release.

Here my main rig! Have more 2 PC's (LianLi cases with Arctic Cooling systems only)

 

[Waldorf]

@cyx2111
then your next card should have a WB on it, will lower temps quite a bit..

 

[mooms]

My settings with my 5800X (old captures, I now have a 5900X):

 

[cyx2111]

My settings with my 5800X (old captures, I now have a 5900X):

View attachment 360540 View attachment 360542

Tje score is excellent but the -30 all cores itself unstable 100% in games. Don't look the CB. Need to find the sweat spot for any core. So UV per core. Use pbo2 or try with Ryzen master for UnderVolting.
Best settings for 5800x is:
PPT: 120W - TDC: 75V or 85V (75V - down 6° celcium down and lose 4% performance) - EDC: 130A
SCALAR: AUTO

 

[Diceair]

Tje score is excellent but the -30 all cores itself unstable 100% in games. Don't look the CB. Need to find the sweat spot for any core. So UV per core. Use pbo2 or try with Ryzen master for UnderVolting.
Best settings for 5800x is:
PPT: 120W - TDC: 75V or 85V (75V - down 6° celcium down and lose 4% performance) - EDC: 130A
SCALAR: AUTO

The best for now is not boost overrride and curve optimizer on 30 all core PPT: 1000 (will never reach that but still fine) TDC: 95 edc: 110. Gives me the best cbr23 scores of 16100 even with boost override of 100 and then custom curve getting cbr23 of 16400 so think that is maybe the best for me.

Just tested again cbr23 and setting priority to high and getting score of 6388 on no boost override and -30 all core

 

[mooms]

Tje score is excellent but the -30 all cores itself unstable 100% in games. Don't look the CB. Need to find the sweat spot for any core. So UV per core. Use pbo2 or try with Ryzen master for UnderVolting.
Best settings for 5800x is:
PPT: 120W - TDC: 75V or 85V (75V - down 6° celcium down and lose 4% performance) - EDC: 130A
SCALAR: AUTO

CO -30 all core is stable with this CPU, it was tested extensively with CoreCycler. Also in games like F1 22, who will made the PC reboot if one core is unstable.
Every CPU is different (silicon lottery).

 

[Dr. Dro]

Tje score is excellent but the -30 all cores itself unstable 100% in games. Don't look the CB. Need to find the sweat spot for any core. So UV per core. Use pbo2 or try with Ryzen master for UnderVolting.
Best settings for 5800x is:
PPT: 120W - TDC: 75V or 85V (75V - down 6° celcium down and lose 4% performance) - EDC: 130A
SCALAR: AUTO

Curve Optimizer is a weird thing. My old 5950X did -2 on all-core. That was all it did. But I got clocks similar to people who had samples that did -15 or even further, and the IOD on that particular chip was insane - had it doing 4x dual rank sticks at 0.98v.

I don't get this obsession with -30 anyway.

 

[cyx2111]

CO -30 all core is stable with this CPU, it was tested extensively with CoreCycler. Also in games like F1 22, who will made the PC reboot if one core is unstable.
Every CPU is different (silicon lottery).

Right. What's your Temps on stress full load?

 

[freeagent]

Define full load. If you say R23 I will just laugh. That is hardly a load.