ASUS P8Z77-V PREMIUM motherboard archive in RAR format, about 405 KB, whose name states the model only, without revision or document type. Open it first to determine whether it contains a boardview, schematic or other repair data. ASUS boardviews of this era generally come as FZ files readable in OpenBoardView or FlexBV, useful for locating shorted parts, MOSFETs and controller pins. Because the Premium layout differs from other P8Z77-V versions, verify the exact model and the revision silkscreened on the board before working from it.
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 @boardview. 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.