Better check the Bios on your intended motherboard carefully. Often the Bios does not allow overclocking or only marginally.
I have sucessfully overclocked my dual Xeon E5410 in a Supermicro X7DWA-N. I use SysTool. The first clock generator works on my motherboard. It is not easy to overclock but I have been able to go from 2.33 to 3.02 without any trouble and I know nothing about overclocking. There are no adjustments in my BIOS.