My  GTX780ti sc that went back to evga for rma, had also heavy coil whine, coil whine noise came above my Corsair H100i at balanced mode, but also give me corrupt picture at boot and some times in windows, black screen if I started a game, didn't go above 548 mhz most of the time, only after reboot it did go to 980mhz, till I started a game, then the problems started again.
Got my rma this week and no coil whine or other problems, only on the black cooler fins at the back, there were some brown spots at the fins, coloured these black with a marker, now I see some fins are more black as the other fins, but I can live with it, the card works like it should.
I saw that my former card needed 0,900v with idle, the new one only 0,886, at load the former card 1,200v and the new one 1.620v.
Happy evga gtx780ti sc user now, thanks to evga for the fast rma.
 

Sad to report that both of my 780ti SC w/ACX have coil whine. It also doesn't help that the fans rattle from time to time. I'll try to RMA or even get a refund ...

I tried all 3 combinations (SLI, and one at a time). They do whine. My PSU is a corsair AX-850W (80+ gold) which never ever had any problem running my previous rig (670 SLI dcu2 from Asus).

Vlada011
OK but you could try card in some other PC, never mind PSU is excellent one of best, you never had problem, but Seasonic platform they are coil whine kings. OK CORSAIR had such problems to but most on Seasonic platforms. You changed GPU, power consumption, frequency and that can influence on noise. I don't want to say that's case but maybe.
You know best you are near PC.

Are you saying that the PSU would whine ? Or that the PSU would induce the whine on the GPUs ? The noise definitely comes from the GPU. Sadly I don't have any spare PSU available to try. I also tried a reference 780ti (Gainward, quieter than all the aftermarket ones I tried, oh the irony) and a Gigabyte WF3 OC 780ti (fans sucked but no coil whine), so it definitely looks like the cards are at fault here.

Both my 770 ACX SC and 780 FTW have coil whine, but only when I've run the WinSAT test. I have not heard this sound while gaming.

michteThe whine appears in game (tested with BF4). I wouldn't complain if this only happened outside ordinary conditions of use

 
Yes, of course. I was just stating I have coil whine on my cards too, which I'm not too thrilled about. If my coil whine happened during gaming, I would have definitely returned my card for a refund by now. It sounds like a drill at a dentist's office, loud and annoying. I couldn't deal with that.

Evga states that each card that send for rma replacement has been tested and it's fine for the evga espectations. I don't beleieve it, both of my 770 double bios had
 
coil whine, the sencond had lower boost clock and worst cooler, some fins were not straight and nickel plated heatsinks although first card had copper heatsinks. I don't
 
know if I'm gonna return the card, because it was a hassle to send the replacement to me and to return back to them, almost a week to receive, a week to send the
 
f***ing ups return label to pick the card and almost a 2 week period to receive the money back because of Christmas. Plus I believe that last time I checked the card had
 
a little coil whine. I changed the psu, went from XFX pro series 750watt bronze to a Corsair RM750 gold, but at first the coil whine was exactly the same...In 3 days that
 
I will return home I will test the card again and I hope that the coil whine was temporary.

I suggest you all to search over net example price of parts and write on paper and to build one Titan.
If price cross 200$ I will cut my fingers, they sell for 1000$. Track only eject one by one... But quality of productions is every year worse and worse, cards are expensive, less space for OC, dosing performance, and CEO of companies are more insolent and more play with our intelligent... 
You use one of more expensive parts on GTX780Ti Classified Kingpin Edition I don't count chip and memory but after that maybe most expensive cost less than 3$ and that's probably best in class, only few such parts are inside, caps are 5-10 peace for 2-3$, or 1-2$ or 5$ world most expensive maybe, memory how much??? and how much cost chip if Intel sell 4cores CPU for 200$...I don't even count on plastic parts and connectors where litteraly 1kg maybe 1000 pieces cost less than 100$... 
They ask 1000$ and that play with your minds and sell craps.
Go search over net look on card and count yourself how much cost...
Real price for Titan is 300-400$ all taxes covered, transport, shipping, packages, service and time of workers everything together such price can cover,
and with such money they can became ULTRA RICH. 
For 500$ they have space to play with gold on PCB but they put craps and plus will locked card to force to by again.
They can cover whole PCB with gold foil probably less than 0.5gr, but I hope they will not do that because they will ask 2000$ for gold edition, with real gold.
World became very sad place because us, humans are source of galactic injustice and misery. 

................. I am getting a RM850w soon by Corsair and RMA ing the GTX 780 ti to Newegg for a brand new one because it wines a lot annnd I know every card cant oc better than some but this card u cant even squeeze 20 MHz on core WITH FULLLL  OVER VOLT -.- 730$ is a lot of a struggle. Paying Premium for problmes....

evga hast for sure not a quallity controll, now my classi ti whine too... cheap(lol) trash cards, how they can coil whine in games where i have under 40 fps... shame on u. i wanted to go on water cooling for a silent computer beacuse the acx fans are crap too. but watercooling with that annying coil whine noise, that make no sense for me. and if someone says again now its ur psu... no i tested allready 2 psu (one corsair and one seasonic both platium) and the result is that the coil whine is with both psu the same no difference
Evga wasted a lot of time from me to test their quality cards 

You don't get to live with it, it's 2 thousands euro / dollar worth of hardware, it should work as intended or be replaced (and tested beforehand). I'd understand on lower budget cards, but on these ...

Yikes. I was just about to order an EVGA 780 TI Classified but I'd hate to have coil whine, so I may not buy it now.
RMA would be a pain as well as I live in Japan.

civicmethodz
Mine is doing it REALLY badly. I tested it with two power supplies as I really didn't want to have to reinstall the factory cooler... Looks like I gotta do it and get it setup for an RMA. Here is a video:
ht tp://www.youtube.com/watch?v=Vgb9Z8odd78

It's saying the video is private.

actionj

civicmethodz
Mine is doing it REALLY badly. I tested it with two power supplies as I really didn't want to have to reinstall the factory cooler... Looks like I gotta do it and get it setup for an RMA. Here is a video:
ht tp://www.youtube.com/watch?v=Vgb9Z8odd78

It's saying the video is private.

Fixed
F

Yea bad really.
Typical graphic card buzz...
No that's useless hardware with such noise if no way to stop, but he need to remove now card from loop...