No Display Output on Anything except the Current GPU

[Fish-N-Chips]

CPU - 4670k
GPU - gtx 1060
Mobo - ASRock z87 extreme 4

My goal is to remove the gtx1060 and run the computer on integrated graphics.

I have set IGPU to on and I have changed the video output to onboard.
I have reinstalled drivers galore and reset bios. I have even bought another GPU to try in the same slot. No matter what I do, there is not display output on anything except the 1060.

The only thing I haven't tried it using another display output, but I don't think this could be the problem.

Any ideas? I have gotten this to work before I installed an new windows. Worst comes to worst I reinstalled windows...

 

[Phillip Corcoran]

Physically remove the 1060 if you want the iGPU to work.

 

[Fish-N-Chips]

I have tried that and I get error A2 on the motherboard.