Read of the BIOS chip from a Sony VAIO with the MBX-189 motherboard, also marked M763 revision 1.0, saved as a 2 MB binary that fits a 16 Mbit SPI flash. Being a direct read, it reflects one unit's contents, which can include its serial data. Sony labels VAIO boards with MBX codes, while M763 is the ODM board code. Confirm both markings on your PCB, keep a backup of your own chip, and write the image with an external programmer.
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 @biosbigarchives. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →