I'm running TBB on windows8. and clicked on onion symbol on top left. And I clicked on "preference", Ticked "Use custom proxy settings" and put my socks5 client info.

like this

 SOCKS5 127.0.0.1:9956

And I see the IP from socks5 client when I checked on browser.

Can anyone tell me if this means I'm running socks5 over TOR network OR since I dont use "use recommended proxy settings", it means I gave up using tor.

I see 127.0.0.1:9150 when I tick on "use recommended proxy settings". 

Port 9150 is litnening port but I do not know not what not using port 9150.

I have never seen accurate answer on this question.

I will appericiate if you can explain this further. Thanks for reading.