Schematic document for an MSI-style MS-7360 board, version 1.0 as indicated in the file name, provided as a 1.28 MB PDF. The MS-7xxx pattern is the scheme MSI uses for its desktop motherboards, though no brand is given separately here. Technicians use these diagrams to trace VRM output, standby and memory rails, verify power-on signalling and locate components when hunting a short. Make sure the model and revision marked on the PCB agree with this document before replacing parts based on it.
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 @pepeelectronica. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.