I share my experience with the EVGA GTX 1070 SC. I already have a third card in this series,
which squeaks in the same way as the previous two. Two I send to EVGA (RMA) under warranty. I note that I changed the power supply, suspecting that he might be the cause. With Thermaltake 530 W switched to Corsair 650 W. Unfortunately, the problem has not gone away. Unnecessarily I spent money on power supply.
Absolutely advise against all card EVGA GTX 1070.
Do not buy IT! For me it is a huge disappointment. First time I have this kind of problem, and in my "career" I had already about 15 different graphics cards.
I never buy anything from EVGA. Never...
Update - I checked my GTX 1070 in my friends PC (with Chieftec 650 W). You do not guess. Coils squeak! So three power supplies, two different computers and everywhere the same problem. That's why I do not buy the excuse of technical assistance that the problem is on my side. Absurd!