BIOS dump for the Lenovo ThinkPad E540 on LCFC motherboard NM-A161, with U8M1 and U4M1 named, likely the reference designators of the flash chips the images belong to. The RAR archive is 4.76 MB. NM-A161 is also used on the E440, so confirm the PCB marking and model before flashing. Locate the matching chip positions on the board, read and back up each one with a programmer, and write the corresponding image only after checking its size matches the chip capacity.
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 @afsbiosfree. 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 →