[SOLVED] GPU wont output video (Lights up but no video. Fans dont spin either)

[hi2011090536]

I just purchased a used MSI GTX 970 4GB for a budget PC I am putting together as a Christmas gift. I tried to test it in my current system, but it wont output any video, nor will it show up anywhere on Windows when I use Integrated Graphics. It has an 8pin and a 6pin. I currently am only using the 8pin, im pretty sure the 6pin is only needed for OC (correct me if im wrong). Which is the same I use for my Card (RX580 Nirto+ Sapphire 8GB). I tried to install drivers for it using Integrated Graphics, but the Nvidia installer says it cant proceed because no Nvidia Hardware was detected.

Any help would be appreciated.
I can try to provide any information as needed.
Thanks!

 

[Phaaze88]

You kind of answered your own question... You need to plug them both.
Even the reference 970 required 2x 6-pin: https://www.nvidia.com/en-us/geforce/900-series/