BIOS package for the Sony MBX-196 mainboard, a Quanta GD2 design carrying PCB number DA0GD2MB8E0 at revision E. Quanta encodes the project name inside its DA0 numbers, here GD2, which makes cross-referencing Sony models easier. The 857 KB RAR is intended for reprogramming the SPI chip when a board shows no POST or power-cycles. Always read the original chip and store a copy before writing, verify the revision letter on the PCB, and match image size to flash capacity.
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 →