It is no secret that in order to get the maximum hashrate and minimum power consumption of AMD Radeon RX polaris10 video cards, it is necessary to modify VBIOS, and then correctly overclock and downvolt each card in MinerOs operating system for mining. The straps tested by our experts for different types of video memory are posted in this article.


  1. Straps may not have a positive effect on your card.
  2. Illiterate firmware can turn a card into a brick and a programmer hardware will be needed to restore the card to working.
  3. VBIOS firmware is done at your own peril and risk. The author does not bear any responsibility. If you do not understand what you are doing, do not alter BIOS!
  4. PhoenixMiner 4.9c miner was used in conjunction with the AMDMemTweak utility


Micron (M32 memory):


Approximate overclocking: Kernel 1290 | Memory 2300 | Voltage 940-960 -> Ethash 35-35.5 Mh/s




Approximate overclocking: Kernel 12910 | Memory 2200 | Voltage 870-920 -> Ethash 33-33.5 Mh/s




Approximate overclocking: Core 1168 | Memory 2070 | Voltage 870-920 -> Ethash 32-32.5 Mh/s




Approximate overclocking: Core 1168 | Memory 2070 | Voltage 870-920 -> Ethash 32-32.5 Mh/s


Instructions for firmware in MinerOS:

  1. Download software to modify VBIOS here
  2. Download BIOS on [Rig page -> Overclocking -> VBIOS], in the drop-down menu - Download.
  3. With the help of PolarisBiosEditor, we prescribe the strap corresponding to your memory in the last 2 lines of your BIOS. Save the resulting BIOS necessarily in a NEW file.
  4. We upload BIOS to the video card [Rig page -> Overclocking -> VBIOS], in the drop-down menu - Upload. Can be downloaded immediately to all cards. Try each strap on the list to find the best one for your card.
  5. After receiving a notification that BIOS is flashed, you need to restart MinerOS.
  6. After the rig has booted again, you need to try different overclockings and drive the card in different modes to find the optimal mode in which the minimum % of incorrect shares.
  7. You can return to the stock BIOS by repeating the above operation with the original BIOS saved.


VBIOS Editor

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