RAR archive of 849 KB named only M1330 with a trailing dash, with no brand, board number or revision given. The name is too brief to state for certain which device or board it covers, so open the archive and check the documents inside before use. Files of this size in a repair library usually contain a schematic PDF or boardview used to trace power rails, locate components and check for shorts. Always confirm the board number on the PCB against the title block of any schematic found inside.
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 @generalschematics. 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.