Boardview in .cad format for a Dell 15-inch DDR4 motherboard with Wistron number 223032-1, the companion layout to the matching schematic. A boardview shows component placement, pin nets and test points on both sides of the PCB, so you can find a part named in the schematic and probe the correct pad. CAD boardviews open in tools such as OpenBoardView, FlexBV or BoardViewer. Check that the board number on the PCB matches, because component positions change between board versions.
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 @schematiclaptopramkushwaha. 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.