Firmware for the ASUS M5A99X EVO desktop motherboard, revision 2.0 of the board, packed in a 6.16 MB ZIP. The name does not give a BIOS version, so check the image inside before flashing. On a working board the update can go through the ASUS utility, while a dead board needs the SPI chip written with an external programmer. Board revision matters here, so confirm the REV 2.0 print on the PCB, save the original chip contents first and check the image size against the flash capacity.
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 →