BIOS for the MSI Z370-A PRO motherboard, model code MS-7B48, with the name indicating the 7B48v26 firmware release, packed as a 13.4 MB RAR archive. This Intel Z370 board supports LGA1151 Coffee Lake processors. The image can be programmed directly into the SPI chip with a programmer to recover a board that will not post. Read and save the original contents first, confirm the image size matches the flash capacity, and expect that MAC address or serial data may need restoring afterwards.
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 →