Big problem with 5th card.

I'm running 3 rx 480 and rx 470, it's work well

Yesterday, i receive a rx 470, and put it in pcie 1x to 16x ( above pcie 16x- 1st pcie - <<<--- Use it for displayport ).

Then it's stop 2 card rx 470 vs 480. I tried to change displayport but nothing happend.

Device manager told me: not enough resources for this card ????

Someone ! Please help me !<img src="https://15254b2dcaab7f5478ab-24461f391e20b7336331d5789078af53.ssl.cf1.rackcdn.com/ethereum.vanillaforums.com/editor/hb/w7cd2s0ozk87.jpeg" alt="" />