One of my rx 570 4gb wont get above 15 mhs using this miner PLEASE HELP!!! Okay so a little background i just built a mining rig that i got some parts for Christmas. I put it together and low and behold my mobo wouldnt boot  so after some trouble shooting i finally said the heck with it and switched mobos to the asus crosshair hero vi. that one booted up just fine,but then was having a heck of a time seeing all of my cards in the bios so after rearranging and tinkering with the mobo, i finally was able to see my 4 rx 570's. so then i booted it up, and another hard time finding the drivers that would work so i went ahead and went with the newest one the 18.6.3 or whatever it is. then i couldnt get the drivers patched (running custom bioses) so i finally was able to patch the driver had to download the latest patcher the 1.4.6. so then finally i could start mining right or at least i thought so. but then i fired up phoenix 3.5d which had been working great for me then i got the opencl cards found or whatever it says.  so then i found the latest phoenix the 4.0b so then that dedicated my cards but am getting sub par results  i was getting 30 mhs on 3 o the 4 cards in prior testing and on the 4th card was getting right around 29to say the least  i have been getting around 119- 123 mhs  on the four cards and now am getting barely over 100 like 102-104 please can anyone have any thing to recommend. to get this back up and running the way it was/suppose to be.
THANKS