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Is that idle or in game?
92c is acceptable.
What case do you have?
Yep, what are the temps in game, use afterburners on screen display to show temps while in game. Have a play about with the custom fan profile in afterburner, auto fan on theese cards isnt great tbh.
Those temps are normal, if not pretty good for a gtx 470 with a reference cooler. Mine used to reach 100 degrees quite regularly while gaming. I have since swapped the reference cooler for the zalman cooler vf3000 cooler, so much cooler and quiter than that old vacuum cleaner.