BIOS dump for Sony motherboard MBX-239, version V061 and board revision 1.1, according to the name. Sony labels its VAIO boards with MBX numbers, and this one appears in the VAIO CA range. The 1006 KB ZIP holds firmware for programming the flash chip with an external programmer when the board is bricked or fails to start. Confirm the PCB carries MBX-239 rev 1.1, back up the existing chip before flashing, and check the image length equals the chip 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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →