I remember the package said to run my ram at 1.65v and it's at 1.50 volts... isn't that low? lol
1.65V is the max you'd want to run. The lower you can run the better.
Also, I have my i7 920 undervolted with EIST and C1E enabled, so at idle it reaches a vcore of only 0.768V
I lowered the vcore in the BIOS to just under 1V, but it will almost definitely be different for you.