Boardview for the Gigabyte B450M S2H V2 desktop motherboard, PCB revision 1.0, in TVW format. TVW files are Teboview layouts and open in Tebo-ICT View or compatible boardview viewers. They show part placement, pin nets and connections, which helps when tracing VRM rails, finding shorted capacitors near the AM4 socket, or locating the BIOS chip and test points. Check that the revision silkscreened on your board matches 1.0, because component placement can differ between revisions of the same model.
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 @boardviews. Enginerys does not host this file.
How to open a .tvw file
Binary boardview from Tebo-ICT test software, frequent for Gigabyte, MSI and many newer laptop boards.