I had a 980 with coil whine so I sent it back and got another 980 and got the same exact coil whine. I returned the card all together and got a 980ti. Well guess what same coil whine. So I started to think maybe it's something else. The whine is definitely the gpu. My psu is about 3 years old so maybe that's an issue? I tried a backup psu that I have that is about a year older but not used even half as much and I still got coil whine. Could it be my mobo? I've turned on and off a bunch of power settings in bios but nothing changes. I oc my i5 2500k but whether it's oc or not I get the whine. Should I try another PSU or try yet another card?