RAR archive, 4.21 MB, containing firmware for H48 and H49 boards, revision C. The name gives no brand, chip type or version, so check the contents after extracting with WinRAR or 7-Zip. Several files may be included for each board. Confirm the board name and revision C on the PCB, compare the image size with the flash chip capacity, and back up the original chip before writing any of the files with an SPI 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 →