BIOS image for a Lenovo desktop motherboard marked L-IG41M, revision 1.0, saved as a raw 1.00 MB binary. The name points to an Intel G41 chipset board, but it gives no detail on the PC model or BIOS version. A raw .bin like this is written to the SPI flash with a hardware programmer such as a CH341A. Read and keep a copy of the original chip first, and check that the chip capacity on the board matches the 1 MB image size, or the write will fail or leave the board dead.
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 →