BIOS image for the ECS H55H-M desktop motherboard, version 1.1, sized for a 2MB flash chip according to the name. H55 boards of that generation usually keep their firmware on a socketed or soldered SPI device that a programmer such as a CH341A can rewrite. Use it to recover a board after a failed update or when the BIOS is corrupted. Check the board revision first, back up the current chip and confirm that the image is exactly 2MB.
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 →