BIOS for the M5A78L-M LX motherboard, version 1101, in a RAR of about 742 KB; the BR-SI part of the name points to a regional or OEM variant of the board. Use it to restore firmware through the vendor update tool or by writing the SPI chip with a programmer after a failed update. Make sure the model and variant on your PCB match, since regional versions can carry different firmware, and always read and save the original chip before flashing.
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 →