Yes, some ACX cards have been reported to have high coil whine. Are your games running at high FPS?

Allow your card a break-in period of a week or two.

Sajin
Run ati tool overnight to burn the card in. Click show 3d view to start the ati tool render test.

hey sajin what do you mean by burn the card?:)

rjohnson11

silixx

Sajin
Run ati tool overnight to burn the card in. Click show 3d view to start the ati tool render test.

hey sajin what do you mean by burn the card?:)

Many forum members have reported that once they run a good load on the card for a few hours the coil whine goes away or decreases.

oh i see i get it...i got my 1080 hybrid about 20 days ago it has coil whine even in iddle  should i be worried about this?

should i let it burn overnight aswell? altough i already used it some hours on load  not sure if its gonna work
 

thanks

"burning in" did not work on my EVGA 780 ACX which sounded like in the OP video, even after one year of heavy use the coil was producing the same noise, i personally believe that burning in is a myth.
 
What is the science behind burning in anyways? the source of coil noises is that coils vibrate as they resist current, some coils vibrate more than others in certain conditions and so are noisier, i believe that every single high performance graphics board has this noise to some degree, by that i mean, if your put your ear very close to any PCB running a graphics chip you will hear that buzzing.
 
I never had a GPU that did not make this noise, even my PS4 is producing this noise and can be heard if you put your ear close to it while a game is running, other GPUs like in the OP video have this noise loud enough that it can be heard from a distance.
 
Did anyone actually had any GPU that did not produce this vibration noise when you put your ear very close to it? and did burn in actually work for anybody? and if so, why and how it works?