gfx not found

hyperspacegowoo

Prominent
Jul 24, 2017
2
0
510
Psu: 850 watt
Windows 7
Mb: sabertooth 990fx

So got another 970 card and installed to run sli. With the bridge connected both would not power up. Disconnected i got power. Well in nvidia control panel it says no nvidia card is detected at this time and the program closes. Both cards do work. I can not figure out the issue.
Also might i add both 970s are same model so they should work together.