Thanks to everyone who has contributed to this thread!

I'm looking for help in getting my 2 XFX RX 580 GB Hynix to hashing > 30 Mhs.  I'm close and getting a consistent 29-29.5, but never go above 29.5.  I've made the following changes:

GlobalCore 1200
GlobalMem 2175
GlobalPowerTune 3
Globalminer Claymore (9.7)

Modded the GPU Rom to copy the 1750 Mhz Timing setting to the 2000 Mhz setting.

I've seen several instances of people getting over 30  Mhs with this card.  How can I get that last 1 Mhs?

My numbers are based on single mining ETH.

TIA.

mu2pilot