Did a quick BIOS mod using the Polaris One click tool and applied the modded BIOS to all my RX 580s. Got 28.9 Mh/s before overclocking. Hopped over to OverdriveNTool and after abour 15 minutes was able to find a stable overclock pulling 31.5 Mh/s per card. I'm really happy with that result. Thanks for the recommendations. Issue resolved and knowledge gained. Thanks everyone.

Thanks for all the advice. I'll look into BIOS modding and let you know how it works out.

Completely stock as of now.

I'm running 6 RX 580 8gb cards and I'm having trouble getting them to 30+ Mh/s for Ethereum. Right now I have basically been limited to 27.98 Mh/s on all the cards. I'm using Team Red Miner v0.8.0. Any recommendations to get my Mh/s over 30 on these stock cards? Thank you!

Current settings below.

Cards: 6 - XFX RX 580 GTS XXX Edition 8GB GDDR5 (Samsung memory)

Memory:
2250 MHz
900 mV

GPU:
1200 MHz
900 mV

Temps are 55 - 59 C.

Power draw is 80w - 90w per card.

The only script arguments I'm using are: p x --enable_compute

Scooped up a new ASUS Z390-P for $99 and an Intel G5400 off Ebay brand new for $50. I don't feel like either was a bad deal. ASUS Z390-P has a really nice BIOS, and setting up was very easy, plug-and-play (less some BIOS optimization). Running with 6 RX 580 8gb cards.