Motherboard boardview for the ASRock Z77 Extreme4 at revision 1.03, stored in a ZIP of roughly 1.61 MB. With the layout loaded you can click any pin to see its net, jump to connected parts and identify components by designator, which makes diagnosing shorts and missing rails on this LGA1155 board much faster. A viewer such as OpenBoardView or FlexBV is needed. Verify the revision silkscreened on your PCB matches 1.03, since revisions may differ in component placement.
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 @zinfo_desktop. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip