BIOS dump for the Sony VAIO VPCCW13FD on the MBX-214 motherboard, project M870, for the variant with NVIDIA graphics as stated in the name. The 958 KB RAR is used to rewrite the BIOS flash when the laptop does not boot or the firmware is damaged. Make sure your board is the NVIDIA version, since builds with different graphics may need other images. Check the MBX number on the PCB, save a copy of the original chip with a programmer, and confirm the image matches the flash capacity before programming.
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 →