I was sort of surprised the card sounded a bit whiny to me and some of the other sites didn't notice. I, as did other sites, ran my tests on an open air bench but it was pretty warm in the lab one day during test and I heard the fan spin up a bit. Now, imagine putting the card in a hot case (don't imagine, I'll do it soon and let you know). I think things could get a little louder still but not to the point where its obtrusive.
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