Firmware dump labelled for a B450M PRO-M2 board carrying the code MS-7B84 with version 2D0, sized for a 16MB flash chip and stored as a RAR archive. The MS-7B84 pattern is MSI board numbering, so verify which maker actually built your board before writing anything. Use it to recover a corrupted BIOS by programming the SPI chip externally. Read and keep a copy of the original chip first, and confirm the chip really is 16MB, as an image of the wrong size will not fit.
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 →