Detected by the motherboard and windows. Changed risers, slots, nothing. 0 hashes. I connect the monitor to it and it outputs the display perfectly. All the other cards are hashing perfectly.
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
Check the cards on the rx rig it may plugged out little vibration or shake. I am using 5 RX 470 cards to mine the ethereum but they did not get the any issues as of now. One time i find that one card is not working but when i adjust the PCI cable connect on the motherboard by clean it connected back then it works perfect. So try loke that bro.