MSI has announced the release of its latest BIOS update featuring AMD’s AGESA Combo PI 1.2.0.3e firmware. The new update is now available for a wide range of AM5 motherboards, including models built on the latest X870, B850, and B840 chipsets, as well as existing X670, B650, and A620 platforms. This release brings broader hardware compatibility and improved memory support across the board.
This update brings expanded compatibility for high-capacity DDR5 memory kits. All MSI AM5 motherboards can now support up to 256GB of system memory by installing 64GB modules in each of the four DIMM slots. The firmware has been tuned to work with high-density memory chips from Micron, Hynix, and Samsung. MSI has also improved memory overclocking support to ensure reliable performance when using these larger modules in performance-focused setups.
According to MSI, systems equipped with four 64GB modules can reach memory speeds of 6000 MT/s in stable conditions, with potential overclocking headroom reaching up to 6400 MT/s depending on the memory configuration and specific motherboard. This represents a notable step forward in capacity and bandwidth, particularly for users in content creation, virtualization, and workstation environments that benefit from high memory density.
Beyond raw capacity improvements, the new BIOS version includes enhanced support for 2DPC (two DIMMs per channel) configurations using single-rank memory. It also incorporates further tuning and support for Samsung’s 4Gx8-based memory kits, commonly found in high-performance DDR5 modules. These enhancements aim to provide better stability and higher performance ceilings for users pushing their systems beyond standard JEDEC specifications.
The AGESA 1.2.0.3e update has already been rolled out to a number of MSI’s 800-series AM5 motherboards. Users can download the new BIOS directly from MSI’s official support page. For those using older AM5 chipsets, MSI has confirmed that updates for additional models are underway and will be made available in the near future.
This BIOS release follows AMD’s continued efforts to improve platform maturity on AM5 as the ecosystem evolves. With this move, MSI is ensuring its motherboard lineup is ready for not only the current Ryzen 7000 processors but also future CPU releases that will share the same AM5 socket.
Users looking to upgrade their systems with higher memory capacities or fine-tune DRAM performance are advised to check their motherboard’s support page regularly and follow MSI’s BIOS update procedures to ensure a smooth transition.
