Many folks also overclock solely to overclock with no gain whatsoever....; for instance, running arbitrarily at 4.6 GHz while surfing youtube is of little value, and, running at 4.6 GHz to increase frames/sec from 100 to 104 on a 60 Hz refresh monitor is also needless wear and tear and a CPU. (at least one poster recently seemingly suffered a possible OC-induced premature death on his cpu after running it at 5 GHz since May.)
Anyway, good luck with your efforts...; you might be able to hit 4.6 GHz with only selecting 46X multiplier in the BIOS...