Boardview in CAD format for the Dell Inspiron 3552 and 3452, board number 14279-1; the name also mentions BRD. The five-digit-dash pattern matches Wistron's board numbering used on many Dell designs. Load it in OpenBoardView or FlexBV to see component placement, net names and connections. It speeds up locating a shorted capacitor, probing power rails and identifying parts, but compare the board number on the PCB first, since related Wistron boards look similar.
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 @schematics_board_view. 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.