Yes, but there is no point in doing the jumper mod if you don't adjust the rails to go beyond 3.3. Also, I was talking about my PSU warrenty, which is voided if I open it up.
The jumper is on the motherboard. It just allows you to set the RAM voltage up to 4.0V, and even if you don't do that, I have found that it yeilds more stable voltages. Also make sure you have a 24-pin native PSU.
003, I know what the jumper is! I was talking about the jumper mod(using the 3.3 rail to supply volts over 3.2). Also yes I do have a 24 pin PSU. I was just wondering if other people out there get less of an overclock with their ram at 3.2 volts using the 3.3 rail rather than using the 5 rail.