Raw 8 MB BIOS binary for a board identified only as main-CIH81S, version 1.0. The CIH81S token most likely refers to an H81-chipset motherboard, but no brand is given, so check the markings on your board before using it. An 8 MB image suits a 64 Mbit SPI flash such as a 25-series chip. Write it with a hardware programmer like a CH341A, saving the original contents first so serials and MAC data can be restored.
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 @bioshub. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →