A schematic diagram for MSI hardware (board MS-7693). Shared as “MSI MSI 970A-G43 MS-7693 REV. 2.0 PDF.pdf” — a .pdf file, 856 KB.
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 @alischematics. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)