Schematic in PDF form for the HP EliteDesk 800 G2 desktop, covering the motherboard identified in the name as Spitfire, revision A. At 1.52 MB it opens in any PDF reader and can be searched for net names, component references and connector pinouts. Use it to trace power rails, follow the standby and main power sequence, and locate parts when hunting a short or a missing voltage. Check that the revision printed on your PCB matches before relying on part values or page references.
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 @pkbiosbdv. 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.