First of all, let’s take a look at how the memory modules perform with loose
timings and they respond to voltages. All tests were ran with 1T timing as most
users would want to run at this enhanced mode when they purchase Premium Memory.
Voltages were adjusted from 2.6v to 3.0v.

These are the timings we used:

We see that voltages does not really improve the clock speeds
attained.. We only gained 2Mhz when we went up to 2.8v and after that we did
not gain anymore clock speed. It was quite a pleasant overclocking experience
at this setting as the clock speed went up to 297MHz. Nothing
like what the Gskill 1Gb kit
can do, but good results considering it is a 2Gb kit.