BIOS firmware for the M2N68-AM PLUS motherboard, the ASUS AM2 desktop board, delivered as a 596 KB zip with no version stated in the name. The PLUS model differs from the plain and SE2 boards, so confirm the model printed on the PCB before flashing. Such images are written with an SPI programmer or the vendor update tool to recover a board that stopped posting after a bad update. Read the original chip first as a backup, and verify that the image size matches the flash chip, otherwise it will not program correctly.
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 →