Virtual-Hideout looked at Intel Core 2 Duo E6400 Overclocking
Overclocking the Core 2 Duo is extremely easy in my opinion, especially with a quality motherboard. It's actually dangerously easy because cranking this E6400 up past 3.2GHz was super easy, but the heat generated is the killer here. And if you don't monitor the temperatures you're crazy. I used the included AiSuite...Intel Core 2 Duo E6400 Overclocking Adventure