Gigabyte GA-P61-USB3P motherboard schematic, revision 1.0 as indicated by the R10 suffix, in a 657 KB PDF. A desktop board diagram like this lets a technician follow power rails from the VRM and standby circuits, trace USB 3.0 and chipset signals, and identify component values when checking for shorts. Any PDF reader opens it, and text search works for net names where the document is vector based. Compare the revision silkscreened on the PCB with the schematic before relying on part numbers or circuit details.
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 @cynetitsolution. 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.