what is overclocking

If done correctly overclocking gives more performance for ur processor with almost no side effects

Say u buy a 3.0GHz C2D. U can then overclock it to 4.0 GHz. U get more performance for less cost of the actual cpu. All this is done by raising voltages (if needed) and increasing the frequency.
Only side effects is that increasing voltages increases heat output. This can damage the cpu if it gets too hot (around 70C for new chips). Also there is electron migration but thats rly confusing and wont affect the life of the cpu

Edit: There is a sticky above about how its done

Overclocking simply means running your CPU faster than the Stock Speed Intel sets the CPU to run.

In many cases Intel will build a number of CPUs using the same exact process and same exact materials. They will set some at default speeds of Low, Med, and High.

You can choose to by one at the "Low" default speed and simply use the settings in your BIOS to set it to "High".

It would use just as much power and last just as long as if you had overpaid for a "High" chip.

Overclocking is making the chip run faster than it was when you bought it. It's stretching your money out so you don't have to buy a more expensive cpu.

reported

Yea Coltoe its really easy to do once u kno how to. Plus its really fun

And its satisfying. Like OCing my E2180 to 3.0 GHz for $70. Rly felt good cause i was on a tight budget and didnt want to buy (at the time) an E6750