Boardview file for a motherboard identified only as GI5CNXA, supplied as a 264 KB zip containing a .cad layout. The name gives no brand, revision or model, so the board code is the only lead for matching. CAD boardview layouts open in viewers such as OpenBoardView, FlexBV or Boardviewer and let you locate parts, follow nets and find test points while measuring rails or hunting a short. Compare the code silkscreened on your PCB before trusting component positions.
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 @SCHEMATICWORLD. 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