Boardview for a Quanta X8J motherboard, board number DAX8JMB16E0, packed in a RAR archive. Quanta numbers its boards in the DA...MB... pattern, and the brand of the finished laptop is not given in the name. After extracting, open the file in a viewer such as OpenBoardView, FlexBV or Boardviewer to locate components, follow nets between parts and find test points while measuring rails or hunting a short. Make sure the board number and revision printed on the PCB match before relying on part placement.
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.