Glad you find it helps. However, this is not a Q/A but questioning only with the infos I had already collected. 

I think in my case that's not true. Hardware is already available, as it is needed for work. Power consumption is 200W and I pay around 10c/h. So if I would run the GPU 24h that would amount to around 0,5$. A test during weekend showed nicecash rewarded me around 4,80$ a day. Not that this would make me a living, but it might be worth something in the future (e.g. on future acceptance of a BTC ETF).

Thank you, I will look into that. Further comments on settings? I know how to operate a console miner, just don't know which settings to tweak.

Edit: Just wanted to share my hashrate of around 700 Sol/s (EWBF+zec.suprnova.cc).

Hi everyone,

for work I use a Titan X running in a Ubuntu machine. As I have spare GPU hours I thought I might use them for mining. So far I have gathered some information within this forum, but am unsure where to start. Maybe you can answer those questions:

1) What cloud mining service should I use?
I tried nicehash and minergate as recommended in some beginner thread. Nicehash is quite clear, I especially liked the calculator page.

2) What algorithms are suited for Nvidia GPU cards?
After benchmarking different algorithms, the Calculator at nicehash recommended Nist5. From what I read, some algos are really not suited for Nvidia cards...

3) What coins should be mined with the Titan Xp?
Nicehash is rewarding BTC. However I'm not sure if one would earn more if mining other coins (ZCash, Monero) and then possibly convert them to BTC.

4) What software to use with Ubuntu+Nvidia?
Currently using ccminer, is there an alternative with integrated switcher for profit maximization? Btw, I tested tpruvot and sp-hash, however did not get the second to work for all algorithms.
4b) How to set/tune parameters for my card?
With ccminer there are many options. It is hard to set/find optimal values for a newbie like me.

Maybe I confused some terms or did not express myself clearly - please correct me, I'm willing to learn.

Thx for your replies!

PS: Second GPU is a GTX 780 Ti.