I just OCd my I7 2700K it's staying on 2.7GHz idle?

Pash-

Honorable
Nov 13, 2013
6
0
10,510
System Specs:
Asus Maximus V Gene
I7 2700K Stock 3.5GHz
16GB 1333MHz DDR3 RAM
2GB AMD Radeon HD XFX 7870
500W Corsair PSU

This was my first time OCing for real. I went into the BIOS and OCd to 4.7GHz, it seems that it is staying clocked at 4.7GHz even when idle and I have no programs open.
- Will this ruin my CPU?
- How do I stop it staying 4.7Ghz all the time?