The easiest way to overclock on the Intel platform is to simply change the frequency divider in the BIOS. To achieve the best overclock we try to stay with the timings that the XMP profile recommends. If we run into any issues we will bump up the voltage to see if we can get our system to boot and become stable.
The XMP profile puts this kit at 3200 MHz. In the BIOS I started moving up the frequency divider without changing the timings or voltage. I was actually quite surprised that I could not get these modules past 3333 MHz, that is only a 133 MHz overclock which really is not all that impressive. I tried upping the voltage and even loosening the timings but our system was not stable on anything above 3333 MHz.