Revision 3.0 data for the X45VD mainboard, delivered as a 163 KB RAR. The name does not list the contents, and the compact size points toward boardview data or a small firmware image rather than a full schematic. Extract it and check the file types first. A boardview helps locate components, nets and test points when diagnosing shorts or missing voltages. Make sure the board revision on the PCB reads 3.0, because placements may differ on other revisions.
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)