Boardview for the HP Pavilion Gaming 15-ec0043ur, built on a Quanta board identified in the name as G3HB. The .cad file is 2.85 MB and maps component placement, part designators and net connections across both sides of the PCB. Technicians use it to find test points, follow power rails from the charger circuit to the CPU and GPU regulators, and pinpoint a shorted capacitor. CAD boardviews open in viewers such as OpenBoardView, FlexBV or Boardviewer. Confirm the G3HB marking on the actual board before trusting the layout.
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 @boardviews. Enginerys does not host this file.
How to open a .cad file
GenCAD text export, the usual format for Compal, Quanta, Wistron and Dell / HP / Lenovo laptop boards.