ASUS M4A89GTD PRO/USB3 motherboard BIOS in a 1.08 MB RAR archive. The model is an AMD socket AM3 board, and the USB3 suffix separates it from the plain M4A89GTD PRO, which needs different firmware, so confirm the exact model on the PCB. Use the image to recover a corrupted BIOS by reflashing the SPI chip with a programmer. Read and store the original dump first, and compare the image size with the chip capacity before writing to avoid a mismatch.
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 →