B650Pro RS Protected memory issue 4.03

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   Hello

I have the B650Pro RS, which runs fine with the BIOS 3.50, but if I update to the 4.03 I see an error message when booting into Arch Linux EFI stub: Warning: unable to protect memory? Though Arch boots and runs fine

Re-flashing back to 3.50 and no message again

Bug in the 4.03 bios, or does something need to be changed in the bios settings

If need be please move this message to the correct section

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Deafbutnotdead Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Jan 2026 Location: France Status: Offline Points: 15	Post Options Post Reply Quote Deafbutnotdead Report Post Thanks(0) Quote Reply Topic: B650Pro RS Protected memory issue 4.03 Posted: 07 Jan 2026 at 1:46am
	Hello I have the B650Pro RS, which runs fine with the BIOS 3.50, but if I update to the 4.03 I see an error message when booting into Arch Linux EFI stub: Warning: unable to protect memory? Though Arch boots and runs fine Re-flashing back to 3.50 and no message again Bug in the 4.03 bios, or does something need to be changed in the bios settings If need be please move this message to the correct section