Fatal1ty AB350 Gaming-itx/AC - disable CPU cores?
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=11670
Printed Date: 28 Jul 2025 at 6:07am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Fatal1ty AB350 Gaming-itx/AC - disable CPU cores?
Posted By: MattG
Subject: Fatal1ty AB350 Gaming-itx/AC - disable CPU cores?
Date Posted: 17 Jun 2019 at 8:43pm
| Hi, with the Asrock Fatal1ty AB350 Gaming-itx/AC motherboard, is it possible to disable one or more CPU cores? I have an AMD Ryzen 5 2400G, which is a quad-core CPU. I'd like to have only two active cores. I've gone through the BIOS numerous times, but can't seem to find a setting that allows me to disable some CPU cores. Is there such an option in the BIOS? Thanks! |
Replies:
Posted By: gizmic
Date Posted: 17 Jun 2019 at 9:50pm
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msconfig ------------- 
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Posted By: MattG
Date Posted: 17 Jun 2019 at 9:58pm
That appears to be a Windows tool? I'm running Linux. I know how to do it from the OS (echo 0 > /sys/devices/system/cpu/cpuX/online), but I would prefer to do it in the BIOS. Thanks! |
gizmic wrote:Posted By: Ray62
Date Posted: 20 Jun 2019 at 6:07am
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In my bios it is under: Advanced\AMD CBS\Zen Common Options\Core/Thread Enablement ------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
Posted By: MattG
Date Posted: 20 Jun 2019 at 8:40am
Awesome, thank you! I don't know how I overlooked that so many times. Thanks again! |