Overclocking is completely dependent on wat motherboard u have . It should have overclocking options like raising FSB for RAM dividers or Changing CPU multiplier (only available for Extreme Edition processors ) .
In the BIOS of ur motherboard search for words like frequency ,multiplier,divider.
U will also need to need the voltage settings for ur CPU if u wanna make it run faster .
First let us atleast know wat motherboard u have , we can help u with it
Overclocking is easy , you just need some common sense and read some online tutorials . BTW it's really hard to physically damage present day chips while overclocking .