u/ImJustH20

I recently installed an MSI Geforce GTX 1660 super into my computer, before this I was just using the integrated graphics on my AMD CPU, I did not know I needed to remove the old graphics drivers and now my pc will not connect to monitor, it turns on, but monitor, keyboard and mouse seem to not be connecting, I have tried removing the GPU and testing without it however it no longer will display at all, is there anything I can do? Note: I did have to take out my motherboard and PSU to do this, however as far as im aware all cables are plugged back in

I recently installed a new GPU, before I was using the integrated graphics with my CPU, however now my pc will not connect to monitor, and even when I removed GPU to try use PC without it, it will no longer connect to monitor, can anyone help me figure out why this is?