Layout boardview of the MSI MS-7A68 at revision 1.0, packed as a .CAD file in a RAR archive of about 1.84 MB. MSI uses MS-7xxx codes for its desktop motherboards. The code is printed on the PCB, usually near the slots, along with the revision. Open the file with OpenBoardView, FlexBV or similar software to search designators, highlight nets and find test pads for CPU, memory and chipset rails. Only rely on it for boards physically marked REV 1.0; later revisions have their own files.
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 @BoardSchematic. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.