Following thr 3mdeb consulting firm's recent release of [1]their Dasharo build of Coreboot and AMD openSIL for the Gigabyte MZ33-ARI1 EPYC 9005 series motherboard, the same engineers continue working on their port of Coreboot and the openSIL CPU silicon initialization library to a Ryzen 9000 series consumer motherboard.

Concurrent to their Gigabyte MZ33-ARI1 port, 3mdeb engineers have been bringing their Dasharo flavor of Coreboot and openSIL to the MSI PRO B850-P WiFi. Similar to the Gigabyte EPYC motherboard port, this is done independent of the motherboard vendors themselves and relying on the open-source AMD openSIL prototype code, Coreboot, and 3mdeb's engineering expertise.

If this is your first time learning about 3mdeb's efforts for this MSI Ryzen motherboard, see [2]MSI PRO B850-P WiFi: A Special AMD Ryzen AM5 Motherboard For Linux / Open-Source Enthusiasts .

In their lengthy write-up today they outlined getting graphics initialization working, various openSIL adjustments around the AM5 specific code, desktop-specific ACPI tables, and more. With this latest development update, they are now able to boot their open-source firmware with a working display on this MSI desktop motherboard. A big caveat though that currently the AMDGPU kernel graphics driver is disabled via nomodeset due to known issues they will be addressing.

Those wishing to read the latest on the MSI PRO B850-P WiFi bring-up with 3mdeb's Dasharo of Coreboot and openSIL can see [3]this blog post by 3mdeb engineer Michał Żygowski. My MSI PRO B850-P WiFi setup is ready and waiting for this open-source firmware solution to reach daily use status this year.



[1] https://www.phoronix.com/news/Dasharo-Firmware-MZ33-AR1

[2] https://www.phoronix.com/review/msi-pro-b850p-wifi

[3] https://blog.3mdeb.com/2026/2026-06-03-msi_pro_b850p_part5/