ASUS M4A88T-M BIOS at version 2403, packed as an 839 KB zip. The board is an AMD 880G-based micro-ATX design for AM3 processors. The file can be flashed with the ASUS EZ Flash utility on a working board, or the raw image extracted and written to the chip with a programmer if the board no longer posts. ASUS update files sometimes carry a header, so check the image size matches the flash capacity and back up the original chip 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 .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 →