Question what slot to stick gpu

[GraySenshi]

I have a x99 deluxe usb 3.1 since it supports 3 way sli can I put my primary gpu on the bottom slot and have a different gpu on the top I'd like to do this for air flow so the main card gets fresh air

 

[Ak74Egy]

You won't be able to use both at once though, if they are different models, and if they're the same model, do you have an SLI bridge to connect them together?

 

[GraySenshi]

I use a 1080 ti for gaming and I have a 1050 that is only used for ibs h264 encoding