Yes, I tried this, stock bios settings, along with my OC settings and all had the same issue.
I plugged in my 760XP2 and this issue is gone.
The RMA process has been good so far, you also offered a cross ship with paypal refund which is great. No downtime!!!
I hope the new 860 works as good as my 760 does.
Update - received my new 860XP2 and the coil whine is gone!!! Overall the RMA process went well, I have no complaints.