Help with new GPU issues! No signal

Jun 4, 2018
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System-

So my system is an R5 1600, my mobo is an Asus PRIME B350M-E, and I have a 600 watt power supply from Thermaltake that’s 80 certified.

Issue-

I recently got an ASUS 580 graphics card from a buddy to replace my 650 (I know it’s awful) but an issue arose, being that when I swapped out the cards, the 580 lights up, and the fans spin, but there’s no signal. I put the 650 back in, and there’s 0 issues regarding that card’s functionality. So how can I fix it so my 580 can display?