Boardview archive for the ASUS FX505DY motherboard, about 1.3 MB in RAR form, with no revision given in the name. Boardview data lets a technician find components by designator, follow nets between pins, and locate test points while measuring rails or hunting shorts. Open the extracted file in OpenBoardView, FlexBV or a similar viewer, ideally alongside the matching schematic. Verify that the board revision on the PCB matches the file.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)