thanks for this guide Mattthev, it was extremely helpful. i am however experiencing some small caveats.

I went ahead and modded my XFX RX480 8GB OC version (XFX Radeon GTR RX 480 DirectX 12 RX-480P8DBA6 8GB 256-Bit GDDR5) one by one.

went from stock hashrates of ~650's to a range of 859 h/s to 878h/s mining XMR with claymore, and is remaining pretty stable at the moment (maybe i'll have to report back later)

However, its doing ~960W at the wall for 5 cards and the Claymore software doesn't display the temp of the cards and the fanspeed anymore. Also, If i tinker with anything through MSI Afterburner, the hash rates immediately drop to ~250 h/s per card. What do you think the problems might be?

I'll be PMing you as well for additional help!