Boardview file in .fz format for the K46CM motherboard, with r20 indicating revision 2.0. FZ files are the protected boardview type found on ASUS boards and open in FlexBoardView, OpenBoardView and similar tools. The 158 KB layout shows component placement, net connections and test pads, so you can follow a rail across the PCB or pinpoint the capacitor causing a short. Verify that the revision printed on the board is 2.0 before trusting component locations.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .fz file
Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.
OpenBoardView (FZ key required)FlexBVBoardViewer