BIOS dump for the MSI Z170A GAMING M5, board MS-7977, stored as a 7.29 MB RAR and labelled for a 16 MB flash chip. A technician programs this image onto the 128 Mbit SPI chip with an external programmer when the board is stuck on a corrupted BIOS or fails a flash. Read and keep the original chip contents first, since they carry board-specific data such as the LAN MAC address. Confirm the extracted image is exactly 16 MB and that the PCB reads MS-7977 before writing.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →