This board is quite generous with the voltages, but for the extreme die-hard overclockers, more may be desired. The Northbridge Chipset voltage can be modified with simple pencil shading. You can check the VNB on the spot shown below or in BIOS hardware monitor:

1 Checking Out DFI 975X Inifinity + Pencil Voltage Mods

Pencil shade the resistor marked bit by bit, or solder a 20K ohms variable resistor across it set at maximum resistance. Tune down resistance to increase voltage. Take note that voltage modding will void the warranty!!

For DDR2 Voltage, users may wish for higher than 2.65v. Pencil shade the resistor marked below bit by bit, or solder a 20K ohms variable resistor across it set at maximum resistance. Tune down resistance to increase voltage. You may check Memory voltage from spot marked or from BIOS.

2 Checking Out DFI 975X Inifinity + Pencil Voltage Mods

I will be doing more tests on this board with Conroe X6800 so stay tuned for updates!