Many people bought IP-based Intel x58 + Core i7 920 problems with the RAM. Often this is due to the fact that buyers are buying incompatible with the processor memory.

I want to buy in Nix Gigabyte GA-EX58-EXTREME (When will bring a new party) Core i7 920 and the main memory for them. Standard PC3-8500
Consequently, I had a few questions.

What voltage should be? 1, 5 V? 1.58? Or 1.65 in?