BIOS image for a board marked M420-D046(C), with the identifier IB360CX version 1.2, reported as fully working. No brand is given in the name, so identify the device from the PCB markings, which should read the same. The 8.66 MB RAR likely contains a full SPI flash dump meant for an external programmer. Before writing, back up the existing chip contents and confirm that the dump size matches the flash capacity, since a mismatched image will not fit or boot.
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 →