Schematic in PDF form for the Z96FM motherboard, revision 1.0, about 4.6 MB. A technician uses it to follow power rails from the charger and PWM controllers to the CPU and memory, trace signal lines, read component reference designators and find test points while chasing a short or missing voltage. Any PDF reader opens it, and text search helps locate nets quickly. Confirm that the PCB is marked rev 1.0 before trusting values and part placement, because later revisions of the same board can differ in layout and parts.
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 @schematicslaptop. 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.