Sony VAIO SVE14AG BIOS firmware for board MBX-276, marked as tested. Sony labels its VAIO boards with MBX numbers, which appear on the PCB and are the reference for matching this dump. The 3.42 MB archive is meant for restoring a corrupted BIOS chip with an external SPI programmer, a common fix for VAIOs that power on without display. Read the original chip first and keep that backup, since it may hold unit-specific data, and confirm the image size matches the flash.
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 @generalbios. 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 →