Hi, yes both of them are exactly the same Powercolor Red Devil RX480's, the crossfire option was always missing. I saved their own bios's modded them individually with memory straps from 1650 (1500 causes color pixels on screen) and re flashed and still no crossfire available.  Re flashed to default bios still no crossfire.  What I still want to try is re flash to default bios again uninstall and install driver without using  atikmdag-patcher.exe.  Just hoped someone might know for sure if it's because of either using a custom bios or the patcher before I go through all the trouble again.