RAR archive of about 971 KB containing service material for the Foxconn W930 motherboard at the PVT stage, meaning a production validation build close to the final release design. The contents are not listed in the name, but such packages usually hold schematic PDFs and sometimes boardview data. Use them to locate components, trace voltage rails and diagnose no-power or no-boot faults. Check that the board name and revision silkscreened on the PCB match before trusting part references or measured values from these documents.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.