Use KlausT ccminer 8.15 - cuda8 is faster than cuda9 for me (both are linked below)

https://github.com/KlausT/ccminer/releases/tag/8.15

put all files in one directory then make a text file, rename it so startmining.bat (now its called a batch file) and run it

The batch file only needs one line, I prefer unimining pool, choose whatever pool you want

ccminer -a neoscrypt -o stratum+tcp://pool.unimining.net:4236 -u your-wallet-address -p c=GBX