BIOS for the ES10ISX board in an unbranded version, sin marca being Spanish for no brand. ES10ISX appears to be a generic platform sold under many Latin American and European labels, and this build carries no OEM identity. The 1.18 MB RAR archive holds a small image suited to an older low-capacity SPI flash. It is useful when the original branded firmware is lost or when a neutral image is preferred. Verify the board marking, back up the existing chip, and check that the image size equals the chip capacity before programming.
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 →