I am planning on doing this as well for my 1070 FTW as well as replacing the stock TIM. I only notice the coil whine at very high FPS so if you don't use V-Sync or a Framerate limiter then it will start to have coil whine because of the uncapped FPS. I play Fallout 4 and set a FPS cap to 120hz and at that rate I do not hear any coil whine so it seems only very high FPS will induce it. For the burn in I would use Heaven 4.0 benchmark. Custom set it to max with your monitors resolution. Or you could lower the resolution to the minimum and that would possibly trigger the FPS to go sky high and induce coil while. Run the benchmark for 48 hours non stop, just let it loop and in a couple days see if it has helped reduce the coil whine. I'll be doing this very soon after I change the stock TIM to some ICdiamond because I noticed in the mid 50's Celcius it starts to throttle down which IMO is way too low of a temp to start to throttle. So I will see if replacing the TIM will help keep the temps lower.

Just want to ask as beginner.. does this coil whine matter? its only the noise or else? I close my case and it barely hear the buzz. Fine for me. Just run my new GTX 1070 FTW with corsair PSU VS650 non modular for couple days. I abit worried the PCIE connectors. It's 6+2 pins x2. Does it ok?

Hi Pingseng,no burn in is not guaranteed to reduce the coil whine noise. Coil whine will not hurt any other components on your PC

I have a tiny bit of whine on my FTW ,but it's barely noticeable. 6+2 is fine it's what I've got on my corsair 650 TX pal