BIOS image named 8mb.10A in a ZIP archive of about 4.5 MB, which suggests an 8 MB dump that compresses well. The name gives no model, brand or board number, only the size and what looks like a version or revision tag, so the file cannot be matched to hardware from its name alone. Such a dump is written to a 64 Mbit SPI flash chip with a programmer. Identify the board independently, confirm chip capacity and back up the original before writing anything.
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 @vinafix_bios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →