ECS 915GV-M5A package for revision 1.0B, a 1.26 MB RAR archive. The model points to an Intel 915GV board, and the name does not say whether the files are schematics, boardview data or firmware, so unpack it with WinRAR or 7-Zip. Because a revision 1.1 version of the same board also circulates, check the marking on your PCB and use the material that matches 1.0B. A correct schematic helps you locate shorts, verify voltages at the VRM and trace the power-on signals.
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 @IT_SERVICE_WORLD. 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.