help with undervolting 5800x3d

[Jacks.]

i'm trying to do undervolting 5800x3d with pbo2 but it's not working at all i tried from -5 to -50 but nothing
idle is 43 under load is 90 cb r23
i did follow the method here 5800x3d-owners but nothing it's like it's not applying the setting i enter the only thing that works is on the limits > temp limit i can set it to 80 and it apply and work anything else is not working,i did flash back to bios 4006 and tried but got nothing my specs are
asus viii ch hero wifi
bios 4201
lian li galahad 360
32 gb crucial ballistix ram 3600mhz
asus 3080 ti
win 10
everything is up to date

 

[cvaldes]

Not possible:

AMD's Ryzen 7 5800X3D doesn't support overclocking or PBO. Zilch

AMD's newest chip doesn't overclock, undervolt, or support PBO.

www.pcgamer.com

There's likely a much more technical explanation floating somewhere on the Internet. If you have the level of technical knowledge to comprehend such a discussion you should be able to find it with a search engine.

 

[tabascosauz]

@Jacks. you have the right idea, but CO on any CPU only goes up to -30.

5800X3D is hard locked to 4550MHz (in reality 4450MHz due to the difficulty of actually reaching 4550 in anything other than benchmarks). It has no Boost Override like other Zen 3 CPUs, so it's hard to tell if your undervolt actually improves anything, until you set a bigger offset than say -15. Even then, it's easy to get to 4450MHz with good cooling, so the performance boost is minimal.

As for temps, you need to set lower power limits in addition to setting curve optimizer, to get the biggest temp reduction. I run -30 all core on mine, combined with 90/65/90 limits.

PBO2 Tuner settings will reset after every reboot, because of how the 5800X3D works. You can create a Task to run it on boot. I'll send the link to the guide later.

 

[Colddecked]

i'm trying to do undervolting 5800x3d with pbo2 but it's not working at all i tried from -5 to -50 but nothing
idle is 43 under load is 90 cb r23
i did follow the method here 5800x3d-owners but nothing it's like it's not applying the setting i enter the only thing that works is on the limits > temp limit i can set it to 80 and it apply and work anything else is not working,i did flash back to bios 4006 and tried but got nothing my specs are
asus viii ch hero wifi
bios 4201
lian li galahad 360
32 gb crucial ballistix ram 3600mhz
asus 3080 ti
win 10
everything is up to date
View attachment 265598

Do you have armory crate installed?

Not possible:

AMD's Ryzen 7 5800X3D doesn't support overclocking or PBO. Zilch

AMD's newest chip doesn't overclock, undervolt, or support PBO.

www.pcgamer.com

There's likely a much more technical explanation floating somewhere on the Internet. If you have the level of technical knowledge to comprehend such a discussion you should be able to find it with a search engine.

Its very possible, I'm using PBO2 tuner on mine.

 

[cvaldes]

Its very possible, I'm using PBO2 tuner on mine.

I stand corrected.

TPU Participant 1 - 0 AMD Tech Marketing

Curious that AMD said it couldn't be done. And that PCGamer believed them. Or perhaps the more likely they gave the answer that pertains to all but the most persistent amateur overclockers.

Is it stable?

 

[Jacks.]

@Jacks. you have the right idea, but CO on any CPU only goes up to -30.

5800X3D is hard locked to 4550MHz (in reality 4450MHz due to the difficulty of actually reaching 4550 in anything other than benchmarks). It has no Boost Override like other Zen 3 CPUs, so it's hard to tell if your undervolt actually improves anything, until you set a bigger offset than say -15. Even then, it's easy to get to 4450MHz with good cooling, so the performance boost is minimal.

As for temps, you need to set lower power limits in addition to setting curve optimizer, to get the biggest temp reduction. I run -30 all core on mine, combined with 90/65/90 limits.

PBO2 Tuner settings will reset after every reboot, because of how the 5800X3D works. You can create a Task to run it on boot. I'll send the link to the guide later.

i'm trying to use pbo tuner it does not matter what value i enter it wouldn't work and i'm no looking for performance boost just temps that doesn't reach 90c ,i did follow a guide from the page i mentioned in the post but got me nothing but if you have a better one please share it

Do you have armory crate installed?

yes why?

 

[Mussels]

Not possible:

AMD's Ryzen 7 5800X3D doesn't support overclocking or PBO. Zilch

AMD's newest chip doesn't overclock, undervolt, or support PBO.

www.pcgamer.com

There's likely a much more technical explanation floating somewhere on the Internet. If you have the level of technical knowledge to comprehend such a discussion you should be able to find it with a search engine.

Yes it is.
It depends on your motherboard and BIOS as much as anything else - a lot of settings are hidden away in the AMD sections of the BIOS, after being disabled in the 'brand name' area.


Make sure to do a CMOS reset and 'load optimised defaults' as that helped mine get off the 5800x settings from the previous CPU.

I stand corrected.

TPU Participant 1 - 0 AMD Tech Marketing

Curious that AMD said it couldn't be done. And that PCGamer believed them. Or perhaps the more likely they gave the answer that pertains to all but the most persistent amateur overclockers.

Is it stable?

You cant do a TRADITIONAL overclock. You can lower PBO settings and adjust the temp limits on almost any board with the software, and some boards like mine let you set an offset voltage - too low and it lowers performance, but balanced just right its free performance.


Heres a link to one of the modded BIOS that allows more settings to work in the BIOS for the Crosshair 8 - make sure it matches your board, read the thread and look for your exact variant
ASUS ROG X570 Crosshair VIII Overclocking & Discussion Thread | Page 565 | Overclock.net

 

[tabascosauz]

i'm trying to use pbo tuner it does not matter what value i enter it wouldn't work and i'm no looking for performance boost just temps that doesn't reach 90c ,i did follow a guide from the page i mentioned in the post but got me nothing but if you have a better one please share it

yes why?

I'm pretty sure you need to remount your 360mm AIO if you're reaching 91C at 95W...... I'm at something like 82C at 120W on a dinky air cooler with -30. Or about 85C at 100W no CO.

What is "wouldn't work"? If you quit PBO2 Tuner after applying -30, and it shows -30 when you open the program again, then it was already set correctly. Make sure your cooler contact is good.

 

[Shou Miko]

I'm pretty sure you need to remount your 360mm AIO if you're reaching 91C at 95W...... I'm at something like 82C at 120W on a dinky air cooler with -30. Or about 85C at 100W no CO.

What is "wouldn't work"? If you quit PBO2 Tuner after applying -30, and it shows -30 when you open the program again, then it was already set correctly. Make sure your cooler contact is good.

The Ryzen 7 5800X3D has so much potential even if there ain't overclocking present just find the sweet spot when undervolting but that 360 Galahad is up to no good even with default volts on my Dark Hero board my Noctua NH-D15 chrome.max does better.

@Jacks. welcome to TPU and please also fill out System Specs it helps out a lot instead of just writing it in the post

 

[Jacks.]

I'm pretty sure you need to remount your 360mm AIO if you're reaching 91C at 95W...... I'm at something like 82C at 120W on a dinky air cooler with -30. Or about 85C at 100W no CO.

What is "wouldn't work"? If you quit PBO2 Tuner after applying -30, and it shows -30 when you open the program again, then it was already set correctly. Make sure your cooler contact is good.

cooler contact is good i checked that twice ,i was able yesterday to get it under control with modifying the values in the limits tab didn't exceed 87c in cb r23 scoring 14200 no matter what values i enter in the curve tab it didn't do anything and yes it shows -30 when i open the program again , i will check the mount for the third time i just ordered Kryonaut Thermal Paste for absolutely no reason except being very sure of everything
i'm still waiting for this guide

The Ryzen 7 5800X3D has so much potential even if there ain't overclocking present just find the sweet spot when undervolting but that 360 Galahad is up to no good even with default volts on my Dark Hero board my Noctua NH-D15 chrome.max does better.

@Jacks. welcome to TPU and please also fill out System Specs it helps out a lot instead of just writing it in the post

the Galahad is not good you're kidding right ?!! it was doing a good job on 5600x and 5700x i can't afford to buy another cooler
btw you have Dark Hero board i heard that curve optimizer is available in the bios on it is that true?

 

[Colddecked]

i'm trying to use pbo tuner it does not matter what value i enter it wouldn't work and i'm no looking for performance boost just temps that doesn't reach 90c ,i did follow a guide from the page i mentioned in the post but got me nothing but if you have a better one please share it

yes why?

I believe something in armory crate interferes with however pbo2 tuner works because it also doesn't work on my asus laptop with zen3 cpu.

 

[tabascosauz]

cooler contact is good i checked that twice ,i was able yesterday to get it under control with modifying the values in the limits tab didn't exceed 87c in cb r23 scoring 14200 no matter what values i enter in the curve tab it didn't do anything and yes it shows -30 when i open the program again , i will check the mount for the third time i just ordered Kryonaut Thermal Paste for absolutely no reason except being very sure of everything
i'm still waiting for this guide

the Galahad is not good you're kidding right ?!! it was doing a good job on 5600x and 5700x i can't afford to buy another cooler
btw you have Dark Hero board i heard that curve optimizer is available in the bios on it is that true?

The guide is for making PBO2 Tuner start at boot, not for troubleshooting:

How-to-undervolt-AMD-RYZEN-5800X3D-Guide-with-PBO2-Tuner/README.md at main · PrimeO7/How-to-undervolt-AMD-RYZEN-5800X3D-Guide-with-PBO2-Tuner

Get the Most out of your 5800X3D using PBO Curve Optimizer! - PrimeO7/How-to-undervolt-AMD-RYZEN-5800X3D-Guide-with-PBO2-Tuner

github.com

Didn't know about Armoury Crate, that's a good thing to check. 4006 and 4201 both working on Impact for me, I don't use Asus software.

Use HWInfo for better monitoring, and watch Effective clock during R23 for changes to clocks. 87C for stock isn't really all that bad, but 87C for -30 is pretty bad. The low score is kinda understandable on 4201 (AGESA 1207 bad for clocks) but your temps are just strange, even stock

 

[P4-630]

That's one hot sucker you got there....Even my air cooled i7 12700K runs much cooler during Cinebench R23 in the summer...

What is you ambient (room) temp?

 

[Shou Miko]

cooler contact is good i checked that twice ,i was able yesterday to get it under control with modifying the values in the limits tab didn't exceed 87c in cb r23 scoring 14200 no matter what values i enter in the curve tab it didn't do anything and yes it shows -30 when i open the program again , i will check the mount for the third time i just ordered Kryonaut Thermal Paste for absolutely no reason except being very sure of everything
i'm still waiting for this guide

the Galahad is not good you're kidding right ?!! it was doing a good job on 5600x and 5700x i can't afford to buy another cooler
btw you have Dark Hero board i heard that curve optimizer is available in the bios on it is that true?

Where did you mount the rad top or front? if you have it in the front I would try the top and wise versa to find the best cooling portenial.

 

[Jacks.]

Use HWInfo for better monitoring, and watch Effective clock during R23 for changes to clocks. 87C for stock isn't really all that bad, but 87C for -30 is pretty bad. The low score is kinda understandable on 4201 (AGESA 1207 bad for clocks) but your temps are just strange, even stock

so i gave it another shot here btw this was the guide i followed which you posted here anyway here is the result note that not limits were applied only curve and i have shutdown every asus task form task manager before the test ,note the temps in the pic ? it dropped very quickly after the test finished doesn't that mean that the cooler is working fine ?

i'm completely lost and i don't know what to do i have no spare mb to try and no other cooler plus i starting to think i got a bad silicon

What is you ambient (room) temp?

i have no idea like maybe 28 or 29

Where did you mount the rad top or front? if you have it in the front I would try the top and wise versa to find the best cooling portenial.

top exhaust and i have 2x 200mm fans in the front the problem is the air coming out of the radiator isn't that hot really which is strange you would expect hell of heat coming out what does that mean ?

 

[QuietBob]

Please update HWinfo to the current version and do not run HWmonitor at the same time. What does it show for maximum CPU Core Voltage (SVI2 TFN) following a complete run of R23 MT?

 

[P4-630]

i have no idea like maybe 28 or 29

Quite warm, that's one reason of it's high idle/load temps.....

Summer is gone where I live, I see ambient temps of around 20~22 degrees now.

 

[tabascosauz]

@Jacks. this is why you use HWInfo, not HWMonitor. "Core clock" looks fine but note your effective clocks are only 4.3GHz, about right for low 14000s. Remember when using HWInfo to enavle Snapshot Polling in main settings (right click tray of icon), otherwise Core Clock is borderline useless.

I observed similar behaviour on 4201, I just attribute it to bad AGESA 1207 performance. But 4006 worked fine for me.

What BIOS settings have you changed? Try 4006 again, and clear CMOS to be sure (Asus does it auto after bios flash but clearly something else is going on here).

Your HWInfo is quite old, I was using 7.02 more than a year ago.

If it idles at 43C per core temps, thermals are still a problem. At around 25C ambient I still idle around 31-32C core temps.

Run R23 with only up to date HWInfo, and observe CPU Voltage SVI2 TFN value during test.

 

[dont whant to set it"']

@Jacks. In the screenshot: cpu v-core almoats 1.3V, way to high for stock behaviour(~1.25V -/- 12.5mV)

Le: When I had set mine to or close to 1.3V , it was almoast instant at 90^C(1second).
After figuring some stuff, it boosts allcore to 4.6GHz or a bit more @ 1.28V(SMT off, if on >instant 90^C).

 

[Jacks.]

Please update HWinfo to the current version and do not run HWmonitor at the same time. What does it show for maximum CPU Core Voltage (SVI2 TFN) following a complete run of R23 MT?

here

@Jacks. this is why you use HWInfo, not HWMonitor. "Core clock" looks fine but note your effective clocks are only 4.3GHz, about right for low 14000s. Remember when using HWInfo to enavle Snapshot Polling in main settings (right click tray of icon), otherwise Core Clock is borderline useless.

I observed similar behaviour on 4201, I just attribute it to bad AGESA 1207 performance. But 4006 worked fine for me.

What BIOS settings have you changed? Try 4006 again, and clear CMOS to be sure (Asus does it auto after bios flash but clearly something else is going on here).

Your HWInfo is quite old, I was using 7.02 more than a year ago.

If it idles at 43C per core temps, thermals are still a problem. At around 25C ambient I still idle around 31-32C core temps.

Run R23 with only up to date HWInfo, and observe CPU Voltage SVI2 TFN value during test.

bios settings i have tried now is
AMD CBS > NBIO > SMU > CPPC Enabled
AMD CBS > NBIO > SMU > CPPC Preferred Cores Disabled
AMD CBS > CPU > Global C-State Control Enabled
got that from here https://www.overclock.net/threads/5800x3d-owners.1798046/
i did enable Snapshot Polling and updated HWInfo
i did flash back now to 4006 and bios is default didn't do anything even the ram are running 2666 and i got 87c with -30 pbo tuner and score of 14600 do you think it's the ram? that's the only thing that changed it's pulling 1.3v when docp is running i think i can make work at 1.27 or something but don't know if it will stable
please keep in mind i'm not an overclocker this is my first time

@Jacks. In the screenshot: cpu v-core almoats 1.3V, way to high for stock behaviour(~1.25V -/- 12.5mV)

Le: When I had set mine to or close to 1.3V , it was almoast instant at 90^C(1second).
After figuring some stuff, it boosts allcore to 4.6GHz or a bit more @ 1.28V(SMT off, if on >instant 90^C).

yeah i know and i have no idea how to bring it down and what stuff you figured out ? and yes smt is set to auto

 

[tabascosauz]

@Jacks. 1.1-1.15V is pretty normal for all core Vcore at -30. If curve wasn't applying and you were at 0, you'd be looking at 1.2V+ for sure. The 4.3xGHz clocks is probably a AGESA 1207 problem, but the fact you're pulling just 95W and hitting 90C is clearly a cooling problem. Everyone knows the 5800X3D is warm but this level of cooling is inexcusable even for an upper-midrange air cooler.

I'd expect you to land around 120W stock in R23, at this point I just don't know if the low power draw is due to AGESA, the fact you're hitting 90C (unlikely, mine still draws normal power at 90C), or something else.

First thing I'd do after going back to 4006 BIOS is to check with another cooler if you can. If you aren't able to test that, or find same results with a different cooler, I'd go exchange the 5800X3D for another one.

All your temps are high.
IOD hotspot should realistically never exceed 50C on any Zen 3 chiplet CPU.
Caches should be the same, hovering in the mid-40s max.
All symptoms point to a bad cooler, since you've already ruled out the mounting.

 

[Jacks.]

First thing I'd do after going back to 4006 BIOS is to check with another cooler if you can. If you aren't able to test that, or find same results with a different cooler, I'd go exchange the 5800X3D for another one

exchange ? you mean rma ? oh god this gonna be hell don't wanna go near that they will not rma this is not the us mate i'm from africa-egypt here you bought it it's done unless it's not working at all
have you took a look to my post above ? i have edited it

 

[P4-630]

All your temps are high.

Including his ambient temp if you missed that...

 

[tabascosauz]

Including his ambient temp if you missed that...

His ambient is 4 degrees warmer than mine and he idles 10-15c higher on core, IOD and cache

I know people like to parrot that the 5800X3D runs hot but this is not how it behaves

 

[Jacks.]

@tabascosauz
take a look to my post above i have edited it