Quanta SP7 motherboard package, revision 1A, with Nikita given as the project name; the laptop brand is not stated. The 871 KB RAR presumably contains a schematic and should be extracted to check. Repair technicians rely on such a document to follow power rails, locate test points and identify components by reference designator while chasing a short or a missing voltage. Since Quanta supplies several brands, compare the SP7 code and 1A revision printed on the board with the title block before trusting part values.
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 @IT_SERVICE_WORLD. 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.