So I managed to get crossfire running fine, but now I have a new issue. My original card, the Sapphire 6870 toxic, runs @ 45-48C at idle, which is great, but my Powercolor 6870 runs at 67-69C at idle, which seems concerning. I haven't monitored temps under load yet but is the Powercolor indeed running too hot, and what can I do to keep it cooler? I'll be getting thermal paste tomorrow if need be, but I'd like other recommendations for keeping it lower.