PDF document for the ASUS Z97-A desktop motherboard, an Intel Z97 chipset board; the RG token appears to indicate a repair guide rather than a full schematic.

Schematic for the ASUS Sabertooth Z97 Mark 1 desktop motherboard, packed as a PDF in a 936 KB RAR archive. The Z97 refers to the Intel chipset the board is built on.

Schematic diagram in PDF for the ASUS Z97-A desktop motherboard, compressed in a RAR archive; the RG token is not explained in the name.

Repair guide for the ASUS SABERTOOTH Z97 MARK-S desktop motherboard, marked RG, as a 1.13 MB PDF.

Schematic in PDF form for the ASUS Z97-DELUXE desktop motherboard, packed in a 757 KB RAR archive; the RG token in the name most likely refers to an ASUS repair guide…

Schematic set for the ASUS Sabertooth Z97 Mark 2 desktop motherboard, packed as a PDF inside a RAR archive of 738 KB.