Sure

There you go.


https://i.ibb.co/0DTBhJt/Screenshot-1.png
https://i.ibb.co/4st3z2y/Screenshot-2.png
https://i.ibb.co/yp1N7sv/Screenshot-3.png

For some reason img bb code doesn't work.

These settings are for 31.5 MH/s @93W.
Also it's important to state that i don't connect my monitor on the RX590, I use the APU for all the rest. 

OK so here we go... xD
I dumped my GPU's BIOS using trixx/gpu-z and i patched it with PBE using the one click patch button.
Then i flashed it using ATI flash program.
I restarted my pc and boom....radeon adrenalin couldn't recognize my GPU.
So i flashed back the stock BIOS and started to experiment on the software settings.

Here some results:

1) Default BIOS settings.
26-27MH/s @152W


2)Memory clock to 2240
30-31 MH/s @158W


3) Under clocked GPU, under volt GPU, overclocked memory clock to 2230 and under volt memory clock.
29-30 MH/s @90W



It's my first time overclocking a GPU so for sure there are better settings.

PS: I don't know why photos appear only as link....

EDIT: Even some more fine tuning gave me 31.996MH/s @95W

thanks for this guide. I'm gonna check it right now.

Hello folks ! I follow and read topics from this forum for long time but i just created an account. xD
I was mining bitcoins in the past but i quit for multiple reasons, noways my outdated antminer S1s can't mine bitcoins and the prices for new hardware are astronomical so i started to search for alt coins.
I get into Ethereum mining 2 weeks ago. I set up quickly my one and only GPU (for now) to mine ethereum.
My GPU is the Sapphire Radeon RX 590 8gb nitro+ SE. With stock BIOS settings it mine at 26-27 MH/s.
If i change the VRAM clock settings from 2100 MHz (stock) to 2230 MHz it gives me 30-31 MH/s, not bad but here come's my main problem. The consumption, it draws 160W (the card alone), i have seen people with RX 580 running it around 90W and i don't think that RX 590 has such a big difference in consumption against RX 580
So what i'm doing wrong here ?  
What do i miss ? xD
Here is a screenshot from gpu-z (don't mind the 2230 mhz clock, it's because i took the screenshot while it's mining.)