Congratulations is a great start.
You can improve the hashrate of the 1660 ti and super and reach 32 mhs with them without much effort, I will leave here the clocks that I use to reach 32 mhs with the 1660 super:

Thank you so much, I am trying to keep them as stable as possible for now.
Whenever I set memory clock to more than 700, it restarts the rig for me.
Nice job. Congrats
Thanks Tarzan2.