Won't post with gpu installed

Nickmeisy

Prominent
May 7, 2017
3
0
510
I have a i7-6700 and a asus-170A and a GTX 1070. When my graphics card is installed it won't give any signal to my monitor when I plug the VGA into the graphics card or the CPU. I've tried a HDMI cable aswell. But when I take the graphics card out my computer runs perfectly. I've tried downloading Nvidia GeForce experience and it won't download cause it doesn't recognize that I have the GPU
 

Nickmeisy

Prominent
May 7, 2017
3
0
510


How? I looked through my Bios and couldn't find that anywhere