Firmware dump for Wistron motherboard 15315-1M taken from an MX25L12805 Macronix SPI chip, packed in RAR. That flash part holds 128 Mbit, or 16 MB, so the extracted image should be exactly that size to program correctly. Technicians use such dumps to recover boards with corrupted BIOS, using a clip and a programmer. Read and keep the original contents before writing. Confirm the board is the 15315-1M revision, since the related 15315-2 uses different firmware.
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 .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 →