Boardview file in FZ format for the X453MA mainboard, revision 2.0, about 104 KB. FZ boardviews are usually opened with viewers such as OpenBoardView, FlexBV or Boardviewer, which display part placement, pin nets and connections. Technicians use it to find a component physically on the PCB, identify test points and follow a net from one part to another while measuring voltages or hunting a short. Pair it with the matching schematic for full context, and check that the board you are repairing is revision 2.0 so the layout corresponds.
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 @alischematics. Enginerys does not host this file.
How to open a .fz file
Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.