BIOS package for Lenovo LCFC board NM-A273 revision 1.0, with ACLUA and ACLUB project codes and a date of 2013-12-27. The RAR is 3.00 MB. LCFC, Lenovo's ODM, uses NM-xxxx numbers, and the two project codes suggest the board serves more than one model. Technicians write such images to the SPI flash with a programmer to recover from corruption or a failed update. Back up the original chip and check the image size against the flash capacity first.
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 →