PBO PPT TDC EDC Limits are Ignored if Manual VDDCR inputted manually X570i Gaming?

[CastorTroy2009]

Why is the PBO manual limits and temperature limits ignored on the latest BIOS when enabling manual vCore voltage for the CPU?  I have to leave it auto if I want to use PBO settings with my manual overclock.

Thanks

[Jiaszzz_ROG]

Hello @CastorTroy2009 
Thank you for reaching out to us.
Could you please let us know what your previous BIOS version was, and have you also changed the CPU?
May I ask if you are currently experiencing that after updating to BIOS version 5013, you can only set the PBO settings to [AUTO] when making advanced vCore adjustments, whereas this restriction did not exist in the previous BIOS version?
Kindly share the main page of the current 5013 BIOS and all manually adjusted settings, such as vCore or other overclocking configurations, so we can better understand your setup.

Thank you.

[CastorTroy2009]

Thanks for the reply.  So yeah I cannot remember which version I was on, I believe it was the immediate previous version & I didn't even know about the PBO manual advanced limits until now.  I never used them before.  I like to use auto voltages now across the board at 3200 ram speed on my 4000 ram and 1600 infinity fabric, stability is much improved.  So anyway, I set 96W PPT, 48A TDC, 48A EDC, 60*C temp limit & it's perfect.  I have good stability with this 1.4V stock auto voltage, but it sure would be nice to increase voltage if required for added stability since I find 1.45V is more stable at 4.7Ghz than 1.4V VDDCR vcore voltage.

Thanks

Windows 11 Enterprise LTSC loT 24H2

[CastorTroy2009]

What do you think about an easy release clip on the future motherboards for the PCIe slot?  It's a real nightmare trying to remove video cards on this motherboard.

[CastorTroy2009]

I did some more tweaking set all auto voltages 1600 infinity fabric on ddr4-3200 & set PBO limits & set manual VDDCR, and this time it's working.  So it must have to do with either beyond 1600 infinity fabric or beyond auto on any other voltage other than VDDCR.  I haven't narrowed down exactly the cause yet, but at least PBO is working now.  I'm running 4750Mhz now 24/7 stable 1.45V with 256W PPT & 48A TDC 48A EDC.  It scores so high on Cinebench with these settings!

[Jiaszzz_ROG]

Hello @CastorTroy2009 

Thank you for your response and confirmation.
Settings in the BIOS may vary depending on the version or installed hardware.
If you have any concerns about specific settings or behavior, please provide the version and details for us to verify further.
Based on the additional detailed settings you provided, it seems you have completed the relevant configurations and achieved good results.
If you have further discussions regarding BIOS overclocking settings or achieving higher benchmark scores for your build, we recommend starting a discussion thread in the "Overclocking & Tweaking" section.
Regarding the PCIe easy-release clip/buckle, we appreciate your valuable feedback about our product.
I will forward it to our relevant teams for further evaluation and consideration in the future.

Thank you.

[CastorTroy2009]

Hello.  Thanks for the reply.  The only thing I wish ROG-STRIX-X570-I-GAMING-ASUS-5013 BIOS Version was more strict about keeping the PBO limits.  It seems to pull more amperage then is what's set by as much as 30A.  I have 48A set, and it sucks down nearly 100A instead.  Thanks

[CastorTroy2009]

It's doing it again, I set 75C max 75W 75A TDC EDC and still this is what its doing on the latest bios, please fix this on the next update.  I have all auto voltages, with 45x multi 1800 infinity fabric, ddr4-3600 and some fan profiles, that's it.

[CastorTroy2009]

Can you also reduce the minimum 60% fan speed on non-pwm fan mode in the bios for, i forgot the name.  This is so annoying.

[Pandur]

You should never set the cpu voltage manually for a Ryzen system. If you experience instability at stock voltage you should use the voltage offset function. Otherwise you will, as you have experienced, disable alot of the smart functions. This is not an ASUS specific firmware limitation. This is how AMD (and Intel) smart power delivery control works. PBO (one feature being automatic voltage adjustments) will be in direct conflict with a static vcore setting so it is disabled.

Regarding fan control, 60% of 12V is 7.2V and that is already approaching the limits of many voltage controlled fans (this could also be a limitation of the fan controller actual voltage output range). If you need lower voltage I would recommend getting a "low noise" adapter, which is just a resistor in series with your fan. This will limit your max speed as well though.

(Or just get with the times and buy a PWM fan 😉)