How do I mine with a 3070 Eagle OC and a 1660 Super OC on with only one high end gaming pc?

I want to do crypto mining with 2 different gpu’s from nvidia but whenever I plug them both only one is detected (the 1660 super) and the other one (3070) shows up on device manager but with a yellow warning sign next to it and it is not available for use.
The cards both work perfectly individually.
How can i make it so I can use both at the same time ?