I got 155 sols/s with Nvidia GTX 980 ref card / win 10 64bit / nvidia driver 375.63 and the latest Nicehash Miner v1.0.2d
Power draw at the wall 180 watts for the whole system.
Trying get cpu (i7-5960x) mining working on the same pc , i got a error , for each core : "Unable to alloc locked pages (err=1314)" , but hashing speed increasing with 30-35 sols/s using 8 cores... power draw at the wall going up to 258 watts / us 120volt
So-so, but not bad for GTX 980
As for CPU, you got your 35 Sol/s
Error message: It's common issue, all, trying to use CPU, see it. But it's like just a message, no real problems follows. So Relax and Forgot. ;-)