Dell OptiPlex 5070 desktop boardview for Wistron board 17538-1, supplied as a bare .CAD file of about 700 KB. The BFV token in the name is likely a typo for BDV, meaning boardview. Five-digit numbers with a dash suffix such as 17538-1 follow the Wistron board numbering seen on many Dell systems. Open the layout in OpenBoardView, FlexBV or a similar viewer to search components, trace nets and locate test points. Check that the 17538-1 marking on the PCB matches.
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 @schematicslaptop. 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.