BIOS dump for the ASUS N45SF laptop, board revision 1.3, marked as a 4 MB image and packed in a 3.75 MB rar. The 4 MB figure indicates a 32 Mbit SPI flash chip, so the extracted file should match that capacity exactly. Technicians write it with a programmer such as CH341A or RT809 to revive a board with corrupted firmware. Back up the existing chip before writing, confirm the PCB revision reads 1.3, and expect that serial numbers or board data may need restoring afterwards.
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 →