BIOS firmware package for the Lenovo G450 laptop built on the Compal LA-5081P motherboard, supplied as a 1.15 MB RAR archive. The name gives no revision, version or chip details, so inspect the contents after extracting. LA-xxxxP numbering is the Compal scheme, and Compal was the ODM behind this Lenovo board. Technicians typically write such a dump to the SPI flash with a hardware programmer when a board shows no POST or a corrupted BIOS. Confirm the PCB number matches and save the original chip contents before writing anything.
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 →