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This article will show you how to reach +31 MH/s with your RX580 with a Hynic, Micron or Samsung bios.
As you can see, i can achieve more than 31MH/s with ethereum in dual mining mode :).
So basically my config is :
Motherboard : MSI Z270-A Pro
Graphic Card : 4 x RX580 Nitro+ 8Go
OS : Windows 10 64 bit
Software mining : Claymore
Software needed :
Official Mining Drivers Beta for Blockchain Compute : http://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-Blockchain-Compute-Release-Notes.aspx
AMD/ATI Pixel Clock Patcher : https://www.monitortests.com/forum/Thread-AMD-ATI-Pixel-Clock-Patcher
ATIFlash 2.74 : https://www.techpowerup.com/download/ati-atiflash/
GPU-Z : https://www.techpowerup.com/download/techpowerup-gpu-z/
Step 1 : Install AMD Drivers
Install the official Mining Drivers Beta for Blockchain Compute
Step 2 : Patch your drivers
Patch your drivers using AMD/ATI Pixel Clock Patcher
Apply the patch and reboot your computer
Step 3 : Backup your bios
You can backup your RX580 bios using GPU-Z
Step 4 : Download modded bios
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal wallet.MainRig -epsw x -dpool stratum+tcp://pasc-eu1.nanopool.org:15555 -dwal wallet.MainRig -dpsw x -dcoin pasc -esm 0 -estale 0 -asm 1 -dcri 9 -cclock 1250 -cvddc 950 -mclock 2250 -mvddc 950 -tstop 85 -tt 65 -fanmin 25 -fanmax 100
ETH only
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal wallet.MainRig -epsw x -esm 0 -estale 0 -asm 1 -dcri 9 -cclock 1250 -cvddc 950 -mclock 2250 -mvddc 950 -tstop 85 -tt 65 -fanmin 25 -fanmax 100
Step 7 : Start mining
Then you can start mining and see the result !!
And you can check the voltage and watt consumption of your cards.
Only 125w per card !!
And voila !!
Donation :
BTC : 1Nj32mLtZ48L74jo5f1HbCFdZ5VkbK7Vba
ETH : 0xC772Eaec7572AD01616593c82b8389f510bA98f6