BIOS image for the ASUS Prime B450M-A, an AM4 micro-ATX motherboard, packed in a 9.84 MB rar archive. The file name states no version, flash size or board revision, so inspect the extracted image and compare its size with the capacity of the SPI chip on the board. A dump like this is typically written with an external programmer when a board is bricked or stuck in a boot loop. Back up the existing chip first, since the original contains board-specific data such as the MAC address and serial.
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 →