I'm trying to crossfire my cards, it runs fine with one card active. fans spin both get power. I also do have the crossfire bridge installed. Only the first slot is working, when i switch the cards both of them work in the first slot. The second slot won't work at all. Its also showing Not present in bios witch i think is my problem. someone tell me what im doing wrong. I have crossfire the cards before just a different motherboard.