I agree with the above but I want to add in that you should up the voltage to the RAM, south bridge chipset, and northbridge chipset so that you can increase your BUS speed from 100 Mhz to something higher (this speed times your CPU multiplier= your clock speed). This way you can get the same overclock but your RAM is also faster (providing you have heat spreaders on it!!!!!) and if it crashed you can manually step the RAM speed down, and you also take a lot of heat off of the CPU as you don't need to crank the multiplier as high to get the same overclock as the method mentioned above. This method spreads the heat around a little more over your components but if you have adequate airflow in your case it will not shorten the life of your motherboard or RAM, and take heat away from the CPU, thus increasing its overclocked lifespan.