Schematic diagram for the MSI MS-7680 motherboard, revision 4.1, provided as a PDF in a 653 KB RAR archive. MS-7680 follows MSI's desktop board numbering, and several revisions of this design exist, so compare the revision marked on your PCB with this one before tracing anything. Useful for checking VRM controller and MOSFET circuits, standby 5V and 3.3V rails, DRAM voltage, and the path from the power button to the PCH. Once unpacked it opens in any ordinary PDF viewer for searching net names and part references.
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.