try my copy of xmr_stak 2.4.2, it should support your card (the 5 series) for XMR. Link
Here.
I have a ONDA B250D8P with 2 550ti, 2 650ti a 470.
The power draw will suck for the hashrate; but it does mine.
Just that card itself on nanopool will take well over a year or three to get a 1XMR payout fyi.
I think I compiled 2.4.4 under Cuda 9, so no support for those older cards.... I had an issue with that. It was compatible with the 6xx series and higher I think. It only saw my 2x 650ti's....
So best stick with the 2.4.2 build. Also it wont hurt to give the alternate DLL's a test to see if they have better hashrate. Link is in the same thread.
you are severely limited on what apps you can mine with, because I believe you need cuda 8.5 and earlier, maybe even cuda 8 or 7.5....
your 1070's will work like a champ with this app, and you're not limited much at all as to what algo you are able to get a miner app for.