Weird buzzing/clicking

I've had my computer for about a week and as of this afternoon, the GPU (a HIS 7950) started getting really hot. Looking into it further in MSI Afterburner, the voltage was downclocked to 825, from the stock 1031. It has been running at 1031 up until this afternoon. I moved the voltage back to stock and it immediately has this weird sound in the video. Does not matter if it is under full load or idle. The sound is constant. Whenever I reboot the computer or it goes to sleep, it auto-downvolts back to 825. There is no sound at 825. Nothing on the card was OC'd and I even tried it with the 2nd bios and the same thing happens. The higher I turn up the voltage, the worse the sound is. There are no visual problems on screen like artifacts or stuttering. Just the noise. It's not coil whine or the fans either, I've checked the fan controls with different speeds and this does not affect it. Is this a PSU or a GPU problem? I haven't the slightest idea what is causing this. Oh, the temps are a normal 60 c when I put it back to stock voltage.



Here is the noise:

http://ift.tt/1F01b7j



Here are some specs from the essentials....

My PSU = EVGA Supernova 750 B1

MOtherboard = Gigabyte X79-UP4

GPU = HIS ICEQ 7950 Boost



Thank you for taking your time to look at this.



-Colin

Weird buzzing/clicking