BIOS file for the H61H2-CM2 desktop motherboard, sized for a 4 MB flash chip, contained in a 1.92 MB RAR archive. A 4 MB image corresponds to a 32 Mbit SPI chip, so it will not suit a board fitted with an 8 MB part. Technicians use dumps like this to rewrite a corrupted BIOS with a programmer such as a CH341A when an Intel H61 based board stays dead or loops. Read and save the original chip, confirm the CM2 marking on the PCB, and check the chip capacity before writing.
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 →