MSI MS-7B78 revision 1.0 boardview, a .CAD layout file packed in a RAR archive of roughly 1.23 MB. MS-7B78 follows the MSI desktop board numbering. Load the file into OpenBoardView, FlexBV or a similar viewer to find components by designator, follow nets across the PCB and pick convenient measuring points. A separate 1.1 revision of this board exists with a different layout file, so compare the revision printed near the PCIe slots or board edge before relying on placements.
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.