Working BIOS for the MSI (Micro-Star) MS-7457 motherboard, version 2.2 board, reported as 100 percent tested, packed as a ZIP of about 3.9 MB. MSI marks desktop boards with an MS-xxxx number and a version code printed on the PCB, usually between the slots, so match both before flashing. The dump is meant for programming the SPI flash with a hardware programmer when a board will not post due to corrupted firmware. Save the original chip contents first and confirm the extracted image size 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 →