Re: Nvidia cards choosing algo?

No autoswitch feature in HiveOS yet.

Do you know any Linux based on that support auto switch?

You can install the miner Excavator on the Linux farms and manage it remotely using MinerPro on computer with windows. MinerPro supports efficient automatic switching.

Excavator https://github.com/nicehash/excavator

MinerPro https://github.com/EvgeniyKorepov/MinerPro-for-NiceHash

Don't get me wrong but you just created this account and how the hell should I trust you?do you have any feeedback?

Yes, I just recently created a new account. Just in order for the github, Google play (https://play.google.com/store/apps/developer?id=%D0%95%D0%B2%D0%B3%D0%B5%D0%BD%D0%B8%D0%B9+%D0%9A%D0%BE%D1%80%D0%B5%D0%BF%D0%BE%D0%B2) and bitcointalk be under the same name.
Here is my old profile https://bitcointalk.org/index.php?action=profile;u=253919
You can verify my e-mail, it is available everywhere. But I will not insist, it really looks suspicious ;-)