Quote Originally Posted by JumpingJack View Post
I would not run it at 2.4 V given the information kindly passed in this thread by various users.

If you leave it in auto, the memory will default to the JEDEC standard voltage and speeds that will operate at that voltage -- if you want the faster capability, then a) you need to manually set it, or b) if you have an nVidia chipset and the memory is SLI capable, then let the nVidia BIOS SLI option set it for you.
Hi JumpingJack

Not only nVidia chipsets can do that. Our AMD Chipsets also can set EPP profile from extra SPD records That's why my memory at default is trying to run DDR 1066 5-5-5 @2.212V Of course Gigabyte was kindly enough to put an option to disable EPP profiles and/or voltages in BIOS .