Originally Posted by Grantofhell
Do you have the E6450 or E6550? Those both fit your description. They are both Conroe 65nm G0 Stepping C2D's and should be able to overclock quite well if you know what you are doing. Just be careful about your voltages.
watch the heat/temps more than the voltages, people with watercooling run Intels up to 1.5v all day, everyday because their temps allow it, also what psu do you have...? overclocking with an inferior psu will give you less stable results, no matter if the psu is 400w or 750w, most crappy psus overrate their wattage anyway, and as asked before, what cpu cooler do you use...? I wouldn't recommend overclocking too much with the stock cooler...