I have never been a fan of overclocking. As such, this is fine by me. I have dealt with several friends who call me regularly wondering why their PC is unstable or worse yet, dead. In each and every case, they are pushing the speed, power, and data at the chip faster than it can handle.
Analogy Alert ! -- Put a big block V8 Chevy engine in a Chevy Chevette and you can begin to understand why the car begins to shake apart.