Lenovo BIOS archive for LCFC board NM-A311, revision 1.0, with ACLU9 and ACLU0 listed as platform codes. NM- numbering belongs to LCFC, the Lenovo-owned ODM that took over many former Compal designs. The dump is meant for writing to the SPI flash chip with a programmer to recover a laptop that powers on without display or fails to boot. Check that the board number and revision on the PCB match, back up the existing chip contents, and compare the image size with 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 →