Hey guys, I'll try to make this as short as possible. I have a gaming PC Asus Rampage II Extreme with (2x) ATI 5970 Video Cards and I'm wondering if one of them may be blown? It seems that when both of them are plugged in that the PC will just freeze before it boots up. Well I pulled the power cords to the bottom card out and found out it boots up just fine? I was tinkering with them because my crossfire would not show up on my Catalyst control manager and I thought it to be one of my cards. Another thing I find odd though, Is on my display manager it tells me both cards are working fine..? Any help from someone would be really appreciated as I'm going crazy trying to diagnose the problem here! Thanks Guys!