Raw 8 MB BIOS dump for a Lenovo board numbered NM-B241, a board number in the LCFC pattern used by Lenovo's own ODM. The name only says old, which suggests an earlier firmware version or an image read before an update, but no exact version is given. An 8 MB file fits a 64 Mbit SPI flash chip. Confirm that the board marking reads NM-B241, save a read of the current chip, then program the image with an external programmer and run a verify pass.
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 @ComputerBIOSBinFile. 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 →