Nemos, do you have ps files for 9 series cards or any recommendations will do? I've got a 960 lying around. Perhaps I can use it together with my 1070.
If the mining wont run on 960 you can reduce intensity. Do this by going in to the various miner .ps1 files. Alexisminer for example has several algos where you can reduce it. You will see -i 21, reduce this to 19 or so. Should work on 960.
If you want to avoid reduced intensity on 1070 also then run two separate nemosminer, one for the 1070, then in another folder one for the 960.