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what is the rest of your spec?
my machine with a 3930k and three Titan's draws barely 900W at the wall (810W at the PSU), so I would be surprised if 2 680's and I'm guessing a quad core will draw more than 600-700W
I'm running 16GB of Corsair Vengeance 1600MHz RAM, Intel Core i7 2600k (stock), Crucial M4 128GB SSD, Seagate 2TB HDD.
I'm running 16GB of Corsair Vengeance 1600MHz RAM, Intel Core i7 2600k (stock), Crucial M4 128GB SSD, Seagate 2TB HDD.