My L706A499 E6600 is at 3.2Ghz. with default voltage. Voltage in Bios reads 1.30. My Corsair XMS2 4-4-4-12 is at 2.10 volts. I am running at a 1:1 ratio. I am using the 1904 Bios. Temps are 25 idle, and 42 under dual Orthos load.