IG-80 IG-81

BIOS .rar 350 KB Shared

RAR archive of 350 KB holding BIOS firmware for the IG-80 and IG-81 motherboards. The name lists both models but not whether one image fits both or each has its own file, so check the contents after extracting with WinRAR or 7-Zip. Sibling boards sharing a package usually differ in minor features. Choose the image that matches the model printed on the board, save the original BIOS chip contents first, and confirm that the image size equals the flash chip size before programming it externally or with the vendor utility.

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.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →