well the psu is a mismatch to those cards.

return the psu or return the cards

hint return the cards

2x 8pin = waste of money

many 1070 ti's  use 1 x  8 pin.

the entire idea of 1070 or 1070 ti is

one 8 pin jack.

as you now see.

no one should be mining large rigs of 9 cards with 2 jack eight pin 1070 ti's

can you return the cards?

can you get these

https://www.evga.com/products/product.aspx?pn=08G-P4-5670-KR