Firmware set for a Sony VAIO with model code MBX-216 on Quanta board DA0GD3MBCD0, in a 3.65 MB RAR. It includes two images: a 4MB main BIOS and a 2MB EC (embedded controller) firmware, the EC handling power-on, keyboard, battery and fan control. DA0 prefixes follow Quanta numbering. Use these to rebuild a dead board whose BIOS or EC chip is corrupted; flash each image to its matching chip with a programmer, keeping backups of the originals and confirming the PCB number first.
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 →