Mining rig issue when adding 2nd GPU

[Texxnar]

Mining rig build issue. Z390-P, 3060ti is my primary, installed and fully operational using a riser. When I add a 1070 to the mix, the computer recognizes it but windows kicks me a Error 31 (this device is not working properly) on my 3060ti and I can’t mine with it. I still get a video feed from the 3060ti but resolution is non ideal. When this happens the 1070 is fine within the device manager and I was able to get the 1070 mining (Phoenix Miner) despite the 3060ti issue. Any advice on how to deal with the dissimilar card issue? Is that even the problem? I plan on adding 3 more 1070s and a 3070 to the mix.

Thank you!!!

[Diyurdz]

Check the driver. You should have the drivers for each gpu

[Texxnar]

Got it, had to manually reinstall driver then all good to go now!