the best auto tune is in the gui BIOS not in windows, although mine only suggested 103 BLCK and 43 multi, and im running 4.4 stable at 1.27 volts + 100 blck(manually)
the windows one is in AI suite -> Tools on the bottom left.
Before you overclock, read about 20 pages of 5 different threads to get a feel for what is rubbish, normal and exceptional with regards to clocks, temps and volatages.
Also, post your cooling solution / case etc