HEY. I found my solution to my black screens!!!! Now because i have a older mother board(5 yrsold), and mother boards back then only give out about 50, it wasnt enough to run the card.Now a reminder, i had a card that did not require a external power cord....On that note, when testing the voltages on the card and then the motherboard, the card would not get enough juice to charge, to keep the charge and there for unable to display. Solution!! I either had to build a new computer for the card or find a GC that had a external power required. I found one where i bought the Asus RX460 2GB and they replaced it with a Styx or whatever they are called, RX460 with 4GB, External power cord required to run the card. Plugged it in, and Tada! no more black screens. I'm not saying this is a solution to all of the black screens out there but maybe it can help others. Another thing, the card weighs so much that i had to find some non-conductive to support the card so i wouldn't have to put the tower on its side. So make sure the card isn't weighing down cause they can cause stress to the card and the mother board. I hope this helps narrow the black screens down. Cheers!!