The feature was initially advertised as a 500 series motherboard exclusive feature but AMD has recently released the new AGESA v2 1.1.0.0 update which should enable support for SAM on B450 and X470 motherboards with a BIOS update.
AMD 400-series motherboards to get Radeon Smart Access Memory (SAM)
Posted on Thursday, November 26 2020 @ 12:24 CET by Thomas De Maesschalck