AGESA 1.0.0.6 officially adds 26 new parameters that can improve the compatibility and reliability of DRAM, especially for memory that does not follow the industry-standard JEDEC specifications (e.g. faster than 2667, manual overclocking, or XMP2 profiles).The update got rolled out to motherboard makers, who will need a bit of time to roll out BIOS updates. AMD believes these BIOS updates will be available by mid to late June. Some motherboards like the Gigabyte GA-AX370-Gaming 5 and ASUS Crosshair VI already have public betas available.
The following table spells out all the new parameters, and provides a few words on what they do. Keeping in mind that this is overclocking territory, manual or automated control of these parameters should nevertheless make it a little more straightforward to use DDR4-3200 modules—or faster if you have the talent!
AMD also kindly reminds users that memory overclocking voids the warranty of your Ryzen CPU.