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Fatal1ty AB350 Gaming-itx/AC - disable CPU cores?
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MattG View Drop Down
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    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!
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msconfig
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Originally posted by gizmic gizmic wrote:

msconfig


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!
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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
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Originally posted by Ray62 Ray62 wrote:

In my bios it is under:
Advanced\AMD CBS\Zen Common Options\Core/Thread Enablement


Awesome, thank you! I don't know how I overlooked that so many times.

Thanks again!
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