Tested BIOS dump for the ASUS X540NA laptop, mainboard revision 2.0, with ENE IO noted in the name, which most likely refers to the ENE embedded controller firmware handled alongside the BIOS. The uploader marks it as tested OK. The RAR archive is about 5.73 MB. Technicians use it to bring back boards that will not power on or show no display, writing it to the SPI chip with a programmer. Confirm REV 2.0 on the PCB, save the original chip contents, and verify the image size fits.
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 →