BIOS dump for the Lenovo IdeaPad Y400 on motherboard NM-A141, supplied as a 3.28 MB RAR archive. The NM-Axxx numbering belongs to LCFC, the Lenovo and Compal joint venture that designs many Lenovo boards. Use the image to rewrite the SPI flash chip with a programmer when the laptop fails to power on or show a picture after a bad update. Check the NM number on the PCB matches, save the original chip contents before erasing, and confirm the image size equals 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 @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 →