Schematic for the Gigabyte GA-H61M-S desktop motherboard, a 622 KB PDF; the name gives no revision. The diagram covers the Intel H61 chipset board circuits, letting a repairer trace the CPU VRM, memory supplies, standby rails and power-on sequence when a board fails to start or shows a short. Opens in any PDF reader. Gigabyte produces several PCB revisions of its boards, so compare the revision printed near the slots with the schematic title block before relying on component values.
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 @freeschematicdiagram. 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.