I had another Advisor look at this topic and they PMed me back indicating I am correct, you can not over-clock this CPU and the boards that support this chip at Dell were not manufactured with over-clocking in mind.
Sad to have had to provided you with this answer. Dell makes straight-forward machines that are favored towards the average person wanting a computer to compose book reports and surf the web.
Although they can play computer games, both on-line and off disk, they do not have options available in the BIOS firmware to change RAM timings, CPU speeds or voltages.
Asus computers is ONE such computer manufacturer that builds their systems with over-clocking in mind. There are others, but I chose to keep it down to one example.