Quanta HK9 motherboard documentation packed in a 2.79 MB RAR file. Only the Quanta project code is given, so the exact board number, revision and whether this is a schematic or boardview remain unknown until extracted. Quanta schematics usually include a power-up sequence and rail block diagram, useful when a board shows no power or a shorted input. Check the DA0-type code on the PCB, with its revision letter, to make sure the files apply to the board you have.
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 @cyberlanelectonik. 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.
7-ZipWinRARThe Unarchiver (macOS)