Duplicate copy of the Gigabyte GA-S1082 rev 1.1 schematic, a PDF of 1.03 MB, identical in size to the other copies. The diagram covers the motherboard circuitry and is used to trace signals and supply rails, look up component values and find which part is responsible for a missing voltage or a short. Open it in any PDF reader and use search to find nets and designators. Check the board number and revision marking on your PCB, since revisions 1.0 and 1.2 of the same design also exist.
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 @SCHEMATICWORLD. 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.