BIOS image for a motherboard identified as RS880M05, revision 1.1, in a 702 KB zip. RS880 is the AMD 880G northbridge name, so this appears to be a budget AMD desktop board, though the brand is not stated. Flash for this generation is usually small, often 512 KB to 1 MB, so check the extracted size against the chip. Use the dump to recover a board dead after a bad update, saving the original contents with a programmer first and matching the PCB revision.
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 →