ASUS PRIME Z490M-PLUS boardview, revision 1.03, stored as a 1.17 MB .cad file. The Z490 chipset comes from the model name. Load it in OpenBoardView, FlexBV or a similar viewer to find components, test points and VRM circuits and to trace nets when a rail is shorted or missing. Before measuring, confirm the board revision printed on the PCB matches 1.03, since layout changes between revisions can move parts.
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 @vinafix_bios. 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.
OpenBoardViewFlexBVBoardViewer