Recently I added a second pair of 2GB Dominator sticks to my setup for a total of 8GB. As expected, I was unable to run all four sticks at their stock (1066MHz) speed at the stock voltage. Rather than risk damaging them with overvolting, I decided to underclock them to match my FSB speed. I was able to tighten the timings to 4 4 4 12 from the stock 5 5 5 15 to make up for some of the speed loss, and I hope to be able to lower them a bit more.
Here's the question, though. With the lower clock speed and given the tighter timings, should I reduce the voltage from the stock 2.10v?