This is an amazing guide. Thank you very much for sharing all this.

As I see, no one shared detailed configuration settings for their rigs and I wanted to share what I achieved.

According to your guide, I modded bios of my 4 x Sapphire 4GB Hynix RX470 OC cards with easy way. After that, I tried XMR-STAK-AMD miner and my rig reached 2787.7 H/s. Eash card is getting around 695 - 698 H/s

I'm using Radeon Software Crimson ReLive Edition Beta for Blockchain drivers.

My Msi Afterburner settings are :

-84mV GPU Voltage
+50 Power Limit
1100 MHz Core
2000 Mhz Memory

My rig is drawing 500W directly from the wall. (The whole system.) I hope these stats help someone on this forum.

The question that I would like to ask is;

Am I using the right driver version for XMR? Do you have any driver suggestions? Can driver affect performance for XMR? Can these cards achieve 800 H/s with another configuration?

I have 30 RX cards and I just tried these settings on 4 of them. Rest of my cards are mining ETH. If I can get more 100 H/s per card, that would be amazing.

Best wishes,