Firmware archive for a B350AM4-M3D motherboard, version 1.0A, suited to AMD B350 chipset boards on socket AM4 as the name suggests. The ZIP weighs 7.71 MB, and the name says nothing about tested status or flash chip, so review the contents before use. Such a file is typically written to the SPI BIOS chip with an external programmer to recover a board that no longer posts. Match the version marking on the PCB, keep a backup of the existing chip, and verify the image size equals the flash capacity.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →