Resize Bar support for B450£

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   So some B450 Mainboards (Asus) support resize bar with a Ryzen 3000 CPU via Bios update.

Will Asrock B450 Boards (specifically the Fatal1ty B450 Gaming-ITX) support it too some day? 

I noticed a beta bios 8.01 which seems like a large Version jump from the current 5.20 when it only updates AGESA. There must be other, hidden changes or not? Does it maybe include resize bar?

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radry Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2019 Status: Offline Points: 60	Post Options Post Reply Quote radry Report Post Thanks(0) Quote Reply Topic: Resize Bar support for B450£ Posted: 12 Sep 2023 at 10:00pm
	So some B450 Mainboards (Asus) support resize bar with a Ryzen 3000 CPU via Bios update. Will Asrock B450 Boards (specifically the Fatal1ty B450 Gaming-ITX) support it too some day? I noticed a beta bios 8.01 which seems like a large Version jump from the current 5.20 when it only updates AGESA. There must be other, hidden changes or not? Does it maybe include resize bar?

kerberos_20 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 3657	Post Options Post Reply Quote kerberos_20 Report Post Thanks(2) Quote Reply Posted: 12 Sep 2023 at 11:10pm
	re-bar is supported on your mainboard since agesa V2, that would be bios version 4.40 if you dont see it, then you dont meet minimum requirements to enable it requirements: ryzen 3000 or better (not including 3400G/3200G) above 4G decoding needs to be enabled CSM needs to be disabled operating system needs to be installed in UEFI mode on GPT drive GPU RX 6000 or better or nvidia RTX 3000 or better, but on nvidia only like 30 games have enabled rebar due to performance issues
	userbenchmark

eccential Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Oct 2022 Location: Nevada Status: Offline Points: 4705	Post Options Post Reply Quote eccential Report Post Thanks(0) Quote Reply Posted: 12 Sep 2023 at 11:11pm
	Umm, Asrock B450 boards have supported Resize Bar (also known as Smart Access Memory) for a long time now. You have to disable CSM, and then enable "Above 4G Decoding" + "Resiable Bar."

radry Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2019 Status: Offline Points: 60	Post Options Post Reply Quote radry Report Post Thanks(1) Quote Reply Posted: 12 Sep 2023 at 11:44pm
	Thank you, I must have completly overlooked that.