My gtx 460 (in my sig) started making a high pitched noise along with a rapid ticking noise. It's not real loud but it's very annoying. It's not the fan, I can adjust it anywhere from 0-100% in Afterburner at 2d clocks and it sounds fine. It only makes the noise when it is in 3d mode AND is displaying something on the screen. The fan speed doesn't affect it. I can't rma it because I reapplied my own thermal paste to drop the temps and flashed it to remove the voltage cap. Any ideas what could be making the noise or how to fix it?
You could try to contact customer service to see if they would. That ticking noise is likely the fan as coil squeal is a very different nose rather than a ticking noise. Check for lose wires or cables that are in the way.