16MB BIOS for the Lenovo LCFC motherboard NM-B481, revision 1.0, with the EX480 project label and a date of 2017-11-03. NM- board numbers belong to LCFC, Lenovo's own design and manufacturing arm. Use the image to restore a corrupted SPI flash with a hardware programmer. Verify the NM-B481 marking and revision on the PCB, confirm the unpacked file is exactly 16MB, and dump the original chip first so it 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 @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 →