Really the best you can do is rma it with whatever company made it and hope you get one that doesnt whine.Ok, well its kinda annoying hmmm, ill just keep it for a while and maybe rma it when the 4890x2 come out or something.
Also, just to mention, if you cannot totally pinpoint the source of the sound, it can be the power supply also whining, or even both gpu and power supply.
Then return it for a new oneSo return it you reckon... one of my mates here in NZ waited then returned his card and they gave him a credit (at the price he paid) which got him a much better card.
My PSU never whined before.