BIOS archive for a motherboard identified by the model code IS-85, supplied as a 339 KB ZIP. The name is brief and lists no brand, chipset or version, leaving the silkscreened model code as the main check. Unpack the image and look for a readme describing the flashing procedure. Before writing, confirm the image size matches the BIOS chip and save the current firmware with a utility or EEPROM programmer, so the board can be returned to its original state if the flash fails.
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 →