MSI has officially launched the AMD AGESA Combo PI 1.2.0.3e BIOS update, delivering a major upgrade to AM5 motherboard users. 
This update enhances DRAM compatibility and supports a mysterious new Ryzen CPU, likely the recently spotted Ryzen 7 9700F
. More notably, it unlocks impressive overclocking potential for high-capacity memory configurations.
Users of MSI’s 800 and 600 series motherboards-including budget A620 boards-can now fully populate all four DIMM slots with 64GB modules, reaching a massive 256GB total system memory. 
The best part? These setups remain stable even when overclocked to 6000 MT/s, and in some cases, up to 6400 MT/s. MSI confirmed compatibility with DRAM from major manufacturers including Micron, Hynix, and Samsung.
In a showcase example, MSI demonstrated a Ryzen 7 9800X3D paired with the MAG B850M MORTAR Wi-Fi motherboard, effortlessly running 256GB of RAM at 6400 MT/s with CL36-44-44-96 timings. This level of performance cements MSI’s commitment to pushing memory boundaries on the AM5 platform.
While MSI didn’t reveal the exact model of the new supported CPU, speculation points to the Ryzen 7 9700F-an iGPU-less chip in the 9000 series. Industry insiders believe this BIOS also lays groundwork for upcoming Ryzen 9000G APUs, promising more future-proofing for AM5 board owners.
With AGESA 1.2.0.3e, MSI empowers enthusiasts to max out their systems not just in capacity, but in speed. For those waiting to build monstrous rigs with massive memory bandwidth, this BIOS update might be the green light they’ve been waiting for.