ASRock B75M-GL R2.0 motherboard boardview, revision 2.01, delivered as a RAR archive of 1.26 MB. With it a technician can find each component by reference, follow signals between parts and locate test points for power rails, clock and reset lines. Extract the archive and open the file in compatible boardview software. The R2 board differs from the first release, so check the revision printed on the PCB matches 2.01 before relying on component positions during diagnosis.
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 @BoardSchematic. 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.