hi...I have a evga 650i ultra mobo and a OCZ platinum revision 2 ddr2 800..My pc automatically boot on 400mhz and 1.8v.. I read some reviews that this ocz memory likes to run 2.1..i really don't tweak the bios cause i'm afraid something wrong may happen..so i wanna know if there is a performance difference when i switched the voltage to 2.1v from 1.8v?thanks!