BIOS package for the ASUS M4A88TD-M EVO desktop motherboard, version 1801 according to the name, in a ZIP of about 1019 KB. Desktop ASUS images can usually be flashed with EZ Flash, or written straight to the SPI chip with a programmer such as a CH341A when the board will not POST. Check that the image size matches the flash chip capacity, and read and save the existing contents before erasing. The file is meant for this exact board model, so double-check the marking on the PCB.
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 →