Two graphics cards makes computer freeze

gurre0014

Prominent
Jan 6, 2018
1
0
510
I recently bought 2 graphics cards for my pc. When I turned my pc back on after I installed them the pc starts to freeze after 10-20 seconds after login. I tried to just use one card and the pc worked fine. I swapped the cards and thought that one of the cards was broken but the other card worked fine as well. What could cause this problem?

My build is:
2 Xfx Rx 580 8gb gpu:s
Asus Z170-P motherboard
i5 6600k cpu
750w fractal design psu
8gb ddr4 ram
256gb ssd
1tb hard drive