Quote Originally Posted by Milos-stancene View Post
What about 500watt and G260?
Thanx!
Extremely risky.

GT260 takes up about the same power as a 2900XT at load, and I don't think the Liberty can handle max load (it's very risky). Only the good 550W stuff is capable of driving a 2900XT on a normal system.

I suggest going with a single 4850, or get this:

http://www.newegg.com/Product/Produc...82E16817104019

And you can power up even the X2 without problems.