Hi. I have used three different 7970 cards since I bought mine in January through a local in-store replacement program, and all three were suffering from the same issue. The cards' performance is fine, however all three cards emitted a very high pitched squeal like noise, especially when the card is under a load and outputing a very high FPS (like at a menu screen). This is very annoying and it was present on all three cards, the first two being returned for exactly this reason, and the third card, despite being the newest, is actually the loudest of them all. It is driving me crazy. I can't stand it anymore.
I ask, is this a common thing with the 7970, or am I just unlucky? Is there some other issue that might be causing it? I know a few other people with 7970s who report the same issue.
PSU is a 700W Corsair model
Intel 2500k @ 4.7 Ghz