What's strange is... that my temps are not really higher than yours, but I don't use chilling, only watercooling... coolant temp is 27,7°C after 1h30 of Furemark load... yeah some degrees, but the difference is not huge. I though it would be a bigger difference.

[EDIT] hum sorry... you have overclocked your card... so yeah my results are without overclocking, with a single loop for WC CPU + GC.