I have 2 6950s unlocked to 6970 and with my config they don't get above 65C. However I am not using the stock fans and I have made extensive modification to the airflow in the case.
1. are both drive cages installed?
2. is there any space between the cards? 1 slots 2 slots?
3. do you have any other pci cards installed?
4. what is the room temp?
I removed my door fan all together and that entire panel is now covered in Silverstone noise dampening foam pad. I blocked off the 5.25 bays and the bottom 120mm slot as well as the first pci slot. doing this forces more air to pass either under the cards or through the cpu heatsink.
here is before my cards were installed. same basic idea. since this was done I have removed the Corsair PCI slot covers and replaced them with Silverstone Aeroslots, and of course installed both new cards.
edit here it is currently. you can see the opening in the Aeroslots are much larger.Edited by willistech - 11/3/11 at 12:34pm