smilem
I don't have a Quadro 6000. The only cards I have at the moment would be Quadro RTX 5000/4000, a770 Le, 2080 super, 1660 S, GTX 680, and Quadro a2000.
I havent tried my PC yet I'm really waiting to get my eazeye monitor before I start testing anymore stuff. my eyes are so flared up right now. Can report back on idle wattage once I got a comfortable setup at least, I don't have a safe baseline at the moment.
Quadro is the model card not driver, maybe try the rtx 3090 studio driver?
There is a way where you can have a 3090 and another safe gpu installed.. so for example 3090 doing all of the leg work while the safe gpu is only used for display output. I haven't tried it but it works for others I think?