Firmware archive for board NTSN1413, version 1.3, which according to the name holds both the BIOS and the EC (embedded controller) firmware. No brand or model is stated, so compare the board code and revision on the PCB with this package. EC images are often flashed to a separate chip or to a region of the main SPI flash, depending on the design. Back up the existing chips with a programmer before writing anything, and confirm that each image size fits the target chip.
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 →