BIOS package version P20 for the MSI Z77A-G43 GAMING motherboard, which uses the MS-7758 board code. The 5.53 MB ZIP archive contains the firmware image for this specific model, useful for recovering a board with a corrupted BIOS or updating CPU support. A technician can write it with a CH341A-type programmer when the board does not post. Compare the image size with the capacity of the flash chip, check that the board is the GAMING edition, and read the original contents first as a safeguard.
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 →