https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 13:34:19 +0000 Tue, 17 Feb 2026 19:50:19 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=112407 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200935&title=asrock-b550m-pro4-has-cppc-option#200935 Author: Xaltar
Subject: 112407
Posted: 17 Feb 2026 at 7:50pm

It's highly unlikely you will get an answer as to why. More often than not its
a simple case of the CPU was not rigorously tested with that feature so they just
make it unavailable. "G" series CPUs are considered low to mid tier so it's most
likely they didn't bother testing a feature that they felt didn't need to exist on
an SKU at that price point. The fact that the feature was available on an ASRock
board for any amount of time is likely just failure of omission on ASRock's part.
There are so many settings, even more when you factor hidden, non user alterable
ones, it makes sense that manufacturers occasionally miss one that should be or
shouldn't be disabled etc.

There is a chance that CPPC caused issues with Renoir however. Getting an answer
from AMD on the matter will likely simply lead to "feature not supported" and no
further explanation.

If you value stability then just stick with the latest BIOS (if it's stable for you)
and ignore CPPC. ]]> Tue, 17 Feb 2026 19:50:19 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200935&title=asrock-b550m-pro4-has-cppc-option#200935 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200934&title=asrock-b550m-pro4-has-cppc-option#200934 Author: mdks1
Subject: 112407
Posted: 17 Feb 2026 at 6:07pm

Thanks for the explanation.

I don't really need the CPPC feature. In this specific case, activating CPPC would only result in slight CPU consumption savings.

My main concern is maximum system stability. If AMD/Asrock did not disable this feature by mistake, but rather to make the system run more stably, I would stick with the latest BIOS version.

That's why I'd be interested to know whether AMD/Asrock disabled it intentionally or accidentally, and what the problem is with CPPC and Renoir.]]> Tue, 17 Feb 2026 18:07:22 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200934&title=asrock-b550m-pro4-has-cppc-option#200934 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200933&title=asrock-b550m-pro4-has-cppc-option#200933 Author: Xaltar
Subject: 112407
Posted: 17 Feb 2026 at 4:05pm

By the response from ASRock_TSD it would appear that Renoir does not (officially)
support CPPC. In situations like this the only option is to use the BIOS version
that includes the feature you are looking for. It is highly likely AMD demanded
the feature be removed, in which case it will likely not return. Intel does this
all the time. Vendors like AMD and Intel rely heavily on gated features for their
SKU separation. Lets use intel 6th gen as an example, an i5 6600 and an i7 6700k
essentially are identical physically. The difference is locked features, overclocking
on the non K 6600, disabled hyperthreading, lower clocks etc. Some of these
features are locked at a hardware level and can't be changed, others are locked
through the BIOS and deliberately hidden settings. Manufacturers have no choice
but to follow these rules if they want to keep licensing vendor chipsets and
BIOS backends.

TLDR, if you have a BIOS version that does what you need, stick with it.]]> Tue, 17 Feb 2026 16:05:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200933&title=asrock-b550m-pro4-has-cppc-option#200933 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200932&title=asrock-b550m-pro4-has-cppc-option#200932 Author: mdks1
Subject: 112407
Posted: 17 Feb 2026 at 5:41am

Hello,

I am running the ASROCK B550M PRO4 with an AMD Ryzen 7 PRO 4750G (Renoir).

After updating the BIOS to the latest stable version 3.90 (previously L3.46), CPPC unfortunately no longer works. Under Linux (Debian 13 ??other distributions are also affected), the following message is displayed:
?œamd_pstate: The CPPC feature is supported but currently disabled by the BIOS.??

As soon as I reinstall the previous BIOS, CPPC works without any problems. It is interesting to note that the problem or deactivation also occurs with other motherboard manufacturers as soon as you install the latest BIOS update.


My question is why the CPPC feature appears to have been disabled in the current BIOS version and whether this feature will be reactivated in a future version, as was the case in older BIOS versions?

I appreciate any answers. Thank you very much.]]> Tue, 17 Feb 2026 05:41:28 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=200932&title=asrock-b550m-pro4-has-cppc-option#200932 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198636&title=asrock-b550m-pro4-has-cppc-option#198636 Author: ASRock_TSD
Subject: 112407
Posted: 05 Aug 2025 at 5:22pm

Hi tul,

After confirmation, the Renoir processor does not support the "CPPC Preferred Cores" feature.
We kindly ask for your understanding.

Yours truly,
ASRock TSD]]> Tue, 05 Aug 2025 17:22:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198636&title=asrock-b550m-pro4-has-cppc-option#198636 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198614&title=asrock-b550m-pro4-has-cppc-option#198614 Author: tul
Subject: 112407
Posted: 03 Aug 2025 at 5:30pm

Hi again, thank for your response.
Updated bios to the last version (3.61) but the "cppc preferred cores" option is not displayed where you suggest, is there any prerequisite for this option to be displayed? any other bios option to be enabled or disabled? or only applies to a specific processor family? right now using a 4650G (renoir)]]> Sun, 03 Aug 2025 17:30:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198614&title=asrock-b550m-pro4-has-cppc-option#198614 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198335&title=asrock-b550m-pro4-has-cppc-option#198335 Author: ASRock_TSD
Subject: 112407
Posted: 08 Jul 2025 at 5:25pm

Dear tul,
Thank you for the posting.

For this case, please go to Advanced > AMD CBS > NBIO Common Options > SMU Common Options, where you will find the "CPPC Preferred Cores" setting.

Thank you

Yours truly,
ASRock TSD]]> Tue, 08 Jul 2025 17:25:49 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=198335&title=asrock-b550m-pro4-has-cppc-option#198335 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=197403&title=asrock-b550m-pro4-has-cppc-option#197403 Author: tul
Subject: 112407
Posted: 20 Jun 2025 at 1:41am

Is the option to activate the CPPC preferred cores available for this motherboard(Asrock B550M PRO4)? if yes, where is located?]]> Fri, 20 Jun 2025 01:41:23 +0000 https://forum.asrock.com/forum_posts.asp?TID=112407&PID=197403&title=asrock-b550m-pro4-has-cppc-option#197403