Firmware dump labelled M70T with the token I470MS, marked as tested and working. The name does not give a brand or board revision, so identify the machine by comparing the board marking and model sticker before use; the token I470MS likely refers to a board designation but this is not certain. Packed as a 9.65 MB RAR, it is meant for reprogramming the BIOS flash chip with an external programmer. Read and keep the original contents first and make sure the image size matches the chip capacity, otherwise it 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 →