BIOS and EC firmware for the ASUS-branded Maximus VIII Ranger desktop motherboard as named, with a 16MB image and an EC file, in an 8.24 MB ZIP. The main image goes into the 16 MB SPI BIOS chip, while the EC part belongs to the embedded controller chip, useful when the board fails to power up or post. Flash with a hardware programmer after identifying each chip on the board. Back up both originals first, and confirm the main image size matches the 16 MB chip.
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 →