BIOS image for the ASUS M5A99X EVO R2.0 desktop motherboard, with r1.00 likely marking the board revision, described as fully working. This model is an AMD 990X based AM3+ board. A tested dump is written to the SPI flash with an external programmer when the board fails to post after a corrupt update. Read and keep the original chip contents first, confirm the revision on the PCB, and check that the image size matches the flash chip capacity before programming.
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 →