The FTW and up have upgraded power phases. The SC and below are reference cards with a different cooler. There have been coil whine reports on some reference cards including EVGA ones.

I haven't heard it in-game, but on the 1080 SC you do hear it while stress testing in FurMark.

If it has the logo, you are correct.  If EVGA produced it, it is a very similar board.  We've had that discussion in a few other threads already.  I was just going by the pictures on the EVGA website.  I wonder if they just slapped a cooler on a board for the reviews or if they are all actually NVIDIA?

The Regular Acx 3.0 and SC cards use the same exact board as the FE.  The FE has a different cooler heatsink attached

chatserv
This is geared towards the ACX 3.0 owners, any coil whine while playing high fps games?

Coil whine is more likely when the card is new. It is a good idea to try to settle the inductors by running an extended test of a benchmark like Unigine Heaven.
It also helps to not have the card run much faster than the 144Hz of your high refresh rate monitor by enabling V-Sync or Adaptive V-Sync or, if supported, G-Sync

I do hear the buzz from coil whine when I take off my headphones and try to listen. Is that bad or doesn't matter... because I don't hear it with headphones on.
 
EDIT: Also whats a coil whine, does it mean the card is defective and I should get a replacement? or its no problem because it doesn't really bother me. (kinda does because I know its there)

CoercionShaman

VegetaCreeper
The Regular Acx 3.0 and SC cards use the same exact board as the FE.  The FE has a different cooler heatsink attached

That's actually what I am looking at now.  I don't think they are the 'exact same board'.  In the JayzTwoCents video it has the the NVIDIA logo.  Does yours?  Or is it a board made by EVGA?

EVGA puts a S/N sticker right on top of where the board says Nvidia.  
 
I had to take off the side of my case and stick my ear right up to the card and even then it was only a very faint coil whine under full load. I can not hear it all when I move just a few inches away or put the side of my case on. 

Hitha
I do hear the buzz from coil whine when I take off my headphones and try to listen. Is that bad or doesn't matter... because I don't hear it with headphones on.
 
EDIT: Also whats a coil whine, does it mean the card is defective and I should get a replacement? or its no problem because it doesn't really bother me. (kinda does because I know its there)

 
In simple terms, coil whine is the vibration of a coil as current passes through it.  It's been happening more lately on cards as the requirements have put it into an audible range with current loading.  They started adding chokes to help with it, but sometimes it doesn't help as much as they would like.  They added damping as well but it can 'break loose' and continue to make noise.    Your card isn't 'defective' really, but you could get one that is much better as far as noise.  The hard part of that is that the entire power circuit can affect it.  It might now have made any noise in a different system.  Sometimes it will lessen as the circuit adapts to the load.  You might literally even be able to remove it by changing the overclock on your CPU and thus changing the load or by using a different power supply.
 
That's the gist of it.  We actually taught this as part of basic electronics.  We could talk about it for hours.  Just take this much and leave it be. 

You should not be able to hear coil whine when gaming with decent audio levels, however a slight buzz coming from the card is too be expected. It really often depends on which case you use, or if your fans by some luck can deafen the buzz when gaming. Also in some games during game menus coil whine can often be heard, this is quite normal since your fps sometimes can reach 700+ in game menus. And last 3D Mark will always make your card coil whine in certain parts of its test, this is normal. If your card can reach above 200 fps in some games, consider using adaptive sync/g-sync/freesync or whatever is available to you, as at that amount of FPS is when all graphics cards starts coil whining no matter how many VRM modules you toss on the PCB.
 
P.S: Stop using Furmark please! It's known for killing graphics card.