Sapphire RX 580 NItro+ 8GB overclocking problem

[dalimil]

Hi all.

I've bought 7 Sapphire RX 580 NItro+ 8GB. I installed couple of drivers (17.4.4, 17.11.2, 17.11.1), hashrate is about 19 MH/s (Claymore).
But I am not able to overclock the GPU.

BIOS is modded and flashed successfully but no effect after changing voltage, GPU and memory clock. Only worse results...

Then I installed beta drivers for mining (by AMD) - https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-[Suspicious link removed]pute-Release-Notes.aspx, then hashrate increased to 22.6 MH/s.

That's all, what I can do - poor 22.6.

Pls any advises??

Thanks

[1715377241]

1715377241

[1715377241]

1715377241

[1715377241]

1715377241

[hozerdev]

There was a guide somewhere here. But in general:
1. Restart in SafeMode
2. Remove drivers with DDU
3. Login and install Blockchain drivers.
4. Flush silent bios with mod from 1stminingrig.com and restart
5. 900/900 1200 2080 will give you stable results around 29Eth+920decr.