BIOS firmware archive for the Lenovo C320 all-in-one, built on the CIH61S motherboard, version 1.0, packed as a 446 KB RAR. The H61 in the board name points to an Intel H61 chipset platform. The small archive likely holds a compressed SPI image for writing with a hardware programmer when the system fails to post. Read and store the original chip before flashing, and confirm that the uncompressed size matches the flash part on the board.
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 →