BIOS firmware for the ASUS B450M-K desktop motherboard, an AMD B450 chipset board, provided as a 10.1 MB RAR with no version stated. Larger AMD AM4 images often include capsule headers, so check whether the file must be trimmed before flashing an SPI chip directly. Technicians use such files to recover a board after a failed update or corrupted firmware. Read and keep the original chip contents first, and confirm the image size matches the flash capacity before writing it with a programmer.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →