When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works .
The patch notes are comprised of 19 features to make the open-source code work on the B850 board, including the following: a UEFI-compatible boot interface, UEFI Secure Boot support, fTPM support, fast boot support, EFI system partition scanning, quiet boot and fast boot support, AMD CPU temperature reporting, and integrated SBOM.
Development of this open-source firmware for the MSI Pro B850-P has been an ongoing process over the past several months. We initially saw development announced in February , after 3mdeb developed an open-source firmware for the Gigabyte MZ33-AR1, a server board compatible with AMD EPYC 9005 series CPUs. Development of the open-source firmware version for the MSI Pro B850-P is based on the work done for the MZ33-AR1.
Dasharo is the first development team to produce open-source firmware for AMD's mainstream consumer AM5 platform. AMD is already looking to switch from AGESA to openSIL starting with Zen 6, but 3mdeb has opted to port AMD's openSIL firmware to older Ryzen CPUs.
Open-source firmware represents a big improvement over existing closed-source firmware solutions, particularly AGESA. AMD touts its openSIL firmware as being more secure than AGESA, with better platform security and better vulnerability tracking thanks to its open-source nature. Going open-source opens up room for experts and developers beyond AMD's own firmware development team to check for vulnerabilities in firmware code.
Asus beta BIOS updates restore Ryzen 9000 memory encryption ahead of AMD’s July timeline
Vendors begin adding AMD EXPO Ultra-Low Latency to 600-series motherboards in latest BIOS updates
Another benefit of openSIL is that it is compatible with alternative firmware beyond UEFI, including Coreboot, oreboot, FortiBIOS, and Project µ. Projects like Coreboot also provide optimized code compared to closed-source firmwares, improving boot-time performance.
The new firmware can be found on the 3mdeb shop, under the MSI Pro B850-P hardware-firmware bundle.
Get Tom's Hardware's best news and in-depth reviews, straight to your inbox.
Key considerations
- Investor positioning can change fast
- Volatility remains possible near catalysts
- Macro rates and liquidity can dominate flows
Reference reading
- https://www.tomshardware.com/pc-components/motherboards/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/motherboards/first-open-source-firmware-for-am5-officially-launches-dasharo-v0-9-0-brings-coreboot-and-opensil-to-zen-4-apus-on-msi-b850#main
- https://www.tomshardware.com/membership
- Single-DIMM DDR5 gaming works better than you probably think — one DDR5 DIMM beats dual-channel DDR4 RAM, AMD's 3D V-Cache chips drop less than 3% with single s
- Grab this 240 Hz QD-OLED gaming monitor at just $300 — Gigabyte's 27-inch GO27Q24A is now $150 off at Newegg
- Lumentum CEO warns of impending bottleneck on critical material used for silicon photonics — fab and material shortfall already lags 30% below customer needs as
- Beat the AI price surge on PC hardware — leverage Newegg combo deals, track Amazon prices, and shop refurb outlets like Woot
- NVIDIA Harnesses Vera CPU to Speed Up Design of Next-Generation CPUs and GPUs
Informational only. No financial advice. Do your own research.