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What can I check to see what is causing these higher temps?
try it with the side of the case off to see if it's the air flow. If it's still high then it has to be the card itself, possibly the heat compound (or lack of)
I don't suppose you know what bios to flash do you? I have yet to find one that works.I get up to 78C at 58% roughly, but that's overclocked to 1130/1425 @ 1.187V and 1.65V respectively. I'm considering flashing the BIOS so I don't have to force constant voltage in AB because my idle temps are ridiculous.