Hey just a quick question regarding your system I actually just finished the process of getting my 6970's (well, 6950's which I just finished flashing to 6970's... and I really hope u did the same), and anyways I havent been able to run both together since I believe I need a bigger power supply.
what PSU are you using? I was thinking of going 1000W so I could even add a third sometime down the line
See my original post: Antec HCG-900. Why do you think the power supply is stopping you? Is it because you only see one adaptor when you use mining tools (or examine them in CCC)? If so, have you made sure that there's a monitor plugged into both? if nothing is plugged into your second adaptor, it will be disabled by windows & unavailable for mining. If you don't have a second adaptor, google "Dummy Plug" for instructions on how to build your own or buy one.