AMD Motherboards - Buggy PBO - x870 Pro RS wifi + 7950x3d

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Buggy PBO - x870 Pro RS wifi + 7950x3d

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=99616
Printed Date: 28 Feb 2025 at 10:30am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Buggy PBO - x870 Pro RS wifi + 7950x3d

Posted By: drwmnn
Subject: Buggy PBO - x870 Pro RS wifi + 7950x3d
Date Posted: 28 Feb 2025 at 2:21am

Hey all,

Anyone ever deal with this issue?

I've confirmed that CCD parking is working properly in games and otherwise with bios defaults loaded + expo

When I turn on PBO, windows suddenly prioritizes the vcache ccd primarily over the higher frequency ccd. The only way I can get it to work somewhat normally is by disabling PSS support or turning off PBO. I don't want to do that bc as I understand it then windows doesn't know which cores are the preferred cores.

It's like flipping a switch.. if I enable PBO, threads all shoot over to CCD0 first and overflow to CCD1 which I feel is defeating the purpose of curve optimizer. With PBO off, it's the reverse (preferred way).