Is possible to have two gtx760 with a cx600 power supply?

[Bertdog]

So I ran out of pcie cables with my psu cx600. The gpu came with some adaptors however they don't seem to be working. What do I do? I just build my pc about 2 weeks ago so the psu is still pretty new. Is it virtually useless now because of the second gpu?

 

[justaguywithagun]

1 x GIGABYTE GA-970A-UD3P AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

This one doesn't support sli.

yep, you hit the nail on the head. that mobo, in fact, only supports 16x/4x pcie so its completely sli incompatible.

barring that, if you tried only the new gpu in the top-most pcie slot and it wouldnt boot, yet the other card would, then the new gpu is very likely dead