BIOS firmware for the H55H-CM board, version or revision V1.0, tagged with ECS and Megaware, a 703 KB RAR archive. Megaware was a Brazilian system builder that shipped ECS-made boards, so this image likely suits those OEM variants. Technicians use such a dump to recover a dead or corrupted board by writing the SPI flash with a programmer like the CH341A. Always read and save the original chip contents first, and check that the extracted image size matches the capacity of the flash chip fitted.
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 →