I'm trying to understand/learn about the changes in the voltages listed on AMD web-site in reference to the C2 verse the C3 revisions of the Phenom II 955 BE and if it will or should effect my choice in RAM for my mobo choice.
C2 list voltage of .875-1.5 and C3 of .850-1.40. Does the voltage of the CPU effect the Voltage of the RAM used? I will be using a Gigabyte GA-MA790GPT-UD3H that has 1.5 v listed as the RAM slot voltage and I'm planning on using G. Skill 1333 @10666 at 1.5v and I'm trying to learn if this will all be ok or will I need to bump the CPU [if I get a C3] to 1.5v to work correctly?
I imagine that I will be getting a C3 since it will be May before I buy.

-------------------------
Ga-990XA-UD3, Phenom II 970 BLK @3.5 GHz, 16 GB DDR3 1600 G.Skill Sniper, WD 1.5 TB Black, ATI FirPro V4800 running on Kubuntu 64-bit

No, the CPU voltage and DRAM voltage are independent of each other.

The C3 requires less Vcore voltage, thus runs cooler than the C2.

-------------------------
Phenom II X6 1100T B.E.@ 4.26GHz
Corsair H70 Core Hydro
ASUS Crosshair V Formula
2x4GB G.Skill RipjawsX@ 1894MHz, 9-10-9-28
SLI: 2x EVGA GTX 570's@ 902/1804/2032
Creative SB X-Fi Xtreme Gamer
Corsair HX850W Modular
Cooler Master HAF 922
2x Win 7 Home Premium (x64)

That's what I was thinking and now I'm a-knowing. Thx Nemesis. I keep doing this while learning and I've been learning a lot.
Some people back themselves into a corner in a game; I do it in my own mind

-------------------------
Ga-990XA-UD3, Phenom II 970 BLK @3.5 GHz, 16 GB DDR3 1600 G.Skill Sniper, WD 1.5 TB Black, ATI FirPro V4800 running on Kubuntu 64-bit