Quote Originally Posted by dragonhunter View Post
I am running HD2900XT in crossfire with Silverstone 750W no problem here
I have use the following psu's in crossfire with overclocks on my
cards up to 875/1000 no issues either.

2 x Ocz PowerStreams 600w
1 SilverStone OP 850W
1 SilverStone OP1000W

With quad core my OP1000 just runs solid with both cards and QX...