You sure its not a mechanical hdd? Clicking type sounds will usually come from those in the beginning of them getting ready to die, before they move to crunching.The fan may be barely touching the sticker that's on top which covers the whole heatsink shroud. There was a whole batch of cards that had that problem awhile ago. It could also be that the shroud itself wasn't put back on right and is offset slightly and the fan is barely touching that too, since these are refurb cards. Check all the screws and make sure they are tight on the cards back and front. Other than that, the only other things I can think of are foreign objects or wires from another component too close to the fan or the fan on the card itself, which has 3 screws usually that holds it down, could be loose and its wobbling. Or a bearing in the fan is wore out. That's all I got for ya man. :)

Took the shroud off the card, and took a close look at it. Didn't find anything abnormal, PCB and heat sink are very clean, no dust/debris to get caught in the fan. I did notice that a few of the screws on the back had stripped heads. I made sure the ones with good heads were snug (with the correct size Phillips...), and they were.
 
Still makes the noise :(

exaltex,
 
I came across your forum post and wanted to see how I can help you with this case.  Thank you for taking my call and glad I was able to help.
 
Let me know if you have any further questions or concerns.
 
Regards,

Got my replacement card in today, turns out it's a 760. Completely awesome customer service, I will be buying EVGA cards from now on. A++++++