BIOS update for the MSI Z77A-G43 motherboard, board code MS-7758, at version 2D0 as shown by the file extension. The 5.45 MB ZIP archive most likely contains the vendor image used by M-Flash or for direct programming of the SPI flash chip. MSI names its BIOS files after the board code with a version suffix, which makes the target easy to identify. Confirm that the board is a Z77A-G43 and not another MS-7758 variant, and save the existing chip contents before writing it with a programmer.
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 →