Quote from: crocozino on September 12, 2017, 09:57:03 AM

in fact you can use your 6 pin on 8 pin cards, the 2 missing pins is just ground you may just shorten them

http://www.goldfries.com/images/computing/6to8pinpcie/6to8pinpcie01.jpg

like here
for 1070 I think you should be pretty fine with it

There is sense on 4th and ground on 8th.
I think it's still not good since temperature depends on amperage not voltage. And amperage is same on +12 and ground line. So this missing ground line is needed there.
Maybe im wrong? I had physics class over 10 years ago...