BIOS archive for the ASUS TUF GAMING B450-PLUS II, an AMD AM4 desktop motherboard, packaged as a 29.9 MB RAR. The name gives no version number, so check the contents to see which release is included. A file like this is used to reprogram the SPI flash with an external programmer when a failed update leaves the board without POST, or as a reference image. Read and save the existing chip contents first. Confirm that the chip capacity matches the image size, and note that board-specific data such as the MAC address may need restoring.
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 →