BIOS archive for the ECS B75H2-M3 desktop motherboard, version 1.0 according to the name, packed as a RAR of about 4.8 MB. The B75 in the model points to the Intel B75 chipset for LGA1155 processors. Such an image is used to revive a board whose SPI flash got corrupted, by writing it directly with an external programmer like a CH341A. Check the board revision printed on the PCB, save the current chip contents first, and confirm that the image size matches the flash chip before programming.
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 →