A BIOS / firmware dump for ASUS hardware. Shared as “ASUS E1504GAB (e1404ga mb rev 2.0) L E SM BIOS.RAR” — a .rar file, 10.6 MB.
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 @ShareMan_Electronic_Files. 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.
7-ZipWinRARThe Unarchiver (macOS)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →