Firmware for the ASUS M5A78L-LE motherboard, revision 1.0, provided as an 884 KB ZIP. This AMD AM3+ board has a separate dump for its later 2.02 revision, so pick the one that matches the version printed on your PCB. Technicians use such an image to bring back a board that will not post after a bad flash, programming the BIOS chip with a CH341A or similar tool. Back up the existing chip first and verify the file size against the chip capacity before writing anything to it.
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 →