RAR archive with a boardview for Compal board LA-M721P, revision 1.0, from the IH4ST project. Compal assigns such project codes together with its LA-xxxxP board numbers, and the board may appear in laptops from different brands. After extraction, the layout file can be opened in a boardview program such as OpenBoardView or FlexBV to locate components, nets and test points and to chase shorts. Confirm the number and revision printed on your PCB match before using it.
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 @vinafix_bios. 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.