Firmware archive for the Lenovo ThinkPad Edge E540, board code AILE2, LCFC mainboard NM-A151. LCFC, Lenovo's own manufacturing arm, uses the NM-Axxx numbering for its boards. Unpack the RAR and compare the image size with the SPI chip before use. Technicians use such dumps to reflash a board that will not post, writing the chip with an external programmer. Make sure the PCB reads NM-A151 and save the original chip contents, which may hold serial data and the Windows key.
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 →