MSI desktop motherboard boardview for model code MS-7D45 at revision 1.0, packed as a 1.02 MB RAR. MSI uses MS-7xxx numbers for its desktop boards and prints the code and revision on the PCB, so the retail name can be matched by looking there. Open the layout in a boardview viewer to locate VRM components, BIOS chip, Super I/O and connectors, and to trace standby or main rails during no-power repairs. Check that the board is revision 1.0, because MSI revisions can change parts 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 @BoardSchematic. 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.