From personal experience, overclocking can damage components and everyone that overclocks should know this, I just had to eat it on a stick of Ram, so I personally decided to back off on my overclocking, so as not to damage any other components like my video card that cost more than my processor and M/B combined. If the manufacturer of the product can prove you've overclocked, your product warranty is gone. So if you've got plenty of moolah, to be constantly replacing components, then overclock to your hearts content, but be aware that you're pushing your components past what they were designed to do, and if you push it far enough it will break.