Packed as a 1.39 MB RAR, this boardview covers the MSI MS-7B79 mainboard in revision 1.1. Loading it into OpenBoardView, FlexBV or a similar viewer gives a searchable map of the board with part outlines, pin nets and test points, useful when tracing a missing rail, checking which component pulls a line to ground or finding where a damaged trace ends. Before relying on it, read the revision near the PCIe slots or board edge; it should say 1.1, not one of the later 2.x or 3.0 versions of the same model.
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.