imn using stock bios and all and the miner sees the 4th card but it never goes through all the steps in the begining like theres to lonbg a delay so it isnt read. however i can see the cards fine in device manager and in claymore.
need help getting the 4th card running
asrock h170 pro4s 7600k
1000watt EVGA psu 10yr warranty
gpu's rx480 and 580 x2
Please clarify, as we are willing to help, we need to understand what your 4th cards problem? is it in the subject, if yes, have you tried replacing your riser?