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Please see this article for updated information: How To Get 470 h/s On CryptoNote Algorithm With RX 550 2GB

Bios Mod Your Video Card

Get AMD/ATI ATIFlash v2.77 to extract your current bios and give it a name like “rx550.mod” .

In Polaris Bios Editor open “rx550.mod” (it will give some warnings, just ignore them) and copy your 1375 memory strap to 1750, 1875 and 2000. Save it.



Open AMD/ATI ATIFlash v2.77 again and rewrite your bios with the one that you just modified.

Restart your pc and you will see in device manager that Windows disabled you video card. You will need to patch your drivers with atikmdag patcher 1.4.6

Restart again your pc

Start Afterburner 4.40 and OC your memory to 1950

In xmr-stak-amd edit your config file (this is for one card)

"gpu_thread_num" : 2, "gpu_threads_conf" : [ { "index" : 0, "intensity" : 256, "worksize" : 8, "affine_to_cpu" : false }, { "index" : 0, "intensity" : 256, "worksize" : 8, "affine_to_cpu" : false }, ],

Start mining and this should be your end: