BIOS image for the MSI B85M-G43 motherboard, MSI board number MS-7823, version 3.3, packed in a 7.84 MB ZIP archive. MSI uses the MS-xxxx code on its PCBs, and several B85M models share MS-7823, so the exact model and version should be checked. The file may be a vendor update or a direct dump, which determines whether you flash it through the board utility or write it to the SPI chip with a programmer. Back up the original chip first and make sure the image matches the flash 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 →