MSI MS-7B22 motherboard boardview, revision 1.1, delivered as a 2.31 MB RAR file. MS-numbers are MSI's in-house board codes, and different revisions of the same board can move or change parts, so compare the revision silkscreened on your PCB with this one. Opened in OpenBoardView, FlexBV or a similar program, the layout lets you search components, highlight nets and find measurement points while diagnosing power faults, missing rails or short circuits around the VRM and chipset.
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.