BIOS firmware for the ASUS M5A78L-M-LX-BR-SI desktop motherboard, packed in a RAR archive of about 787 KB. The BR suffix usually marks a regional variant, so the image should go only onto that exact model. Such a dump is used to recover a board with a corrupted BIOS by writing the flash chip with an SPI programmer such as a CH341A. Read and save the original chip contents first, check that the image size equals the chip capacity, and verify the written data afterwards before reassembling the board.
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 →