How to change its bios on AMD RX?

In this article we will see how to change its BIOS on AMD RX graphics cards easily using this guide. Introduction: On AMD graphics cards, a BIOS change is required if you want:

  • Have a reduction in power consumption
  • Benefit from a significantly higher hashrate

If you do not change the BIOS of your AMD graphics card you will have a lower hashrate and a higher power consumption while you have a lower hashrate. This problem does not arise on Nvidia graphics cards, it is for this reason that beginners prefer to choose NVIDIA, no change of BIOS is necessary. It should also be taken into account that on AMD graphics cards, only a few algorithms are interesting (Ethash/Dagger-Hashimoto, Cryptonight, Neoscrypt recently and Lyra2z with Linux) today, the most important is the profitability , so it is necessary to do its calculation to find out if it is more interesting to choose AMD or Nvidia graphics cards:

  • Purchase price of graphics cards, make the comparison between AMD/Nvidia
  • Estimate an approximate hashrate before the purchase of the graphics cards
  • Check immediate profitability on what to Mine and Crypto-coin
  • Power consumption

On the Internet you can find free or paid bios, we will explain how to make a BIOS change all by itself in an “automatic” way.

Complete Guide to change the bios of its AMD RX graphics cards:

To change the bios of AMD graphics cards We will need several things, download the links below:-Polaris BIOS Editor 1.6.7 which modifies the timings of your graphics cards. -ATIWinflash 2.77 which allows the change of the modified BIOS with Polaris. -TechPowerUP GPU-Z 2.8 which allows to know the internal memory of your graphics cards (Samsung, Elpida, Micron, Hynix)-HWiNFO 5.74 which allows to check the errors memory on your graphics cards after the change of the BIOS. -AMD Pixel Clock patcher (Atikmdag-patcher 1.4.6) that allows you to validate the Windows digital signature and remove the 43 error code from your graphics cards. -DDU 17.0.8.4 which allows to completely remove the drivers. (graphics drivers)-The drivers (graphics driver) 17.30 Crimson Blockchain of August 23, 2017-Disable Automatic Updates with Windows Update Tool-Msi Afterburner 4.4.0 BETA 16 that allows the overclock of your graphics cards  

First step

All steps must be followed as shown in this guide so that there is no error. It is necessary to check the type of memory on our graphics cards with the GPU-Z software: The installation of the GPU-Z software is not required to see this information. If you do not want to include more graphics cards on your RIG in the future, you can uninstall GPU-Z after this procedure.


Second Stage

Download, install and then open your ATIWinflash software to back up your original BIOS. So, if the MOD BIOS (modified) is not interesting, it will always be possible to reset the original one. -Right Click then run in Administrator mode-Save your original BIOS in the folder “Atiflash” by modifying the name in a simple but clear way as for example “biosorigine480”. Important Note: If you have different graphics card models, you should obviously record each BIOS. 1 BIOS = 1 graphics card, if you have 6 graphics cards of the same model as for example an AMD RX 480 with the same internal memory on each of the graphics cards, there is no need to record 6 bios, this one will be the same if it is the same brand/model/Memoi Internal. On the other hand, if you have different models, different internal memories you have to save each BIOS one by one, it makes sense. Note: On the ATIWinflash software we can see only 3 cards, so it is better to unplug the risers (physically) from all your graphics cards and leave only 1 graphics card each time to do this quietly and Properly. AMD BIOS Change: AtiWinFlash


Third Stage

The BIOS change with the help of PolarisBiosEditor. So you have to download it, install it and launch it. Important Note: It is possible to have 2 types of internal memory on a single graphics card, if so do not hesitate to contact us at the end of this article in comment if you are afraid to make a mistake. AMD BIOS change: Polaris BIOS Editor This version allows you to change your settings automatically, convenient is not it? You will need to perform the BIOS change on each graphics card if you have a different model, a different type of memory (Elpida, Micron, Samsung, Hynix) again it makes sense. A graphics card = 1 BIOS-it opens its original BIOS “open BIOS” that was previously recorded via the second step. -You have to click on “One click Timing Patch” To change all the settings. -then just click on “Save as” and put your BIOS in the folder you want with a simple but clear name like for example “Rx480biosmod”, a different name will be required if you have different models/internal memories Different, be inventive but always simple but clear names “Rx480biosmodsamsung”, “Rx480biosmodmicron” etc after clicking on “One Click Timing Patch” You observe the changes with respect to the original BIOS: the software has Automatically changed the timings corresponding to the internal memory of your chart, in this case here for example, we can observe that I have an AMD RX480 Samsung card. The timing strap has therefore been modified from 0:1500 to 0:2000, indicating the same parameters. If we observe the original BIOS, we see that the timing strap was identical only from 0:1750 to 0:2000 and not from 0:1500. The changes are obviously possible manually or you can always download a MOD BIOS directly to the site jacket. For a first change of the BIOS we recommend you follow this procedure “Automatic”, or download it on the Internet. Note: If you like the challenges and if you like perfect optimization, you can change everything manually, i.e. fan settings (ventilation), TDP (Max Watts), voltage to lower consumption/improve the hashrate.


Step Four

Finally, we got to the step that becomes interesting, the flash of our bios, which means replacing the original BIOS with the modified BIOS we performed in step three. We recommend that you flash your graphics cards one by one especially if it’s your first BIOS flash, as usual, we do things calmly but cleanly. If you want to flash all your graphics cards in one shot, you can also obviously. We also recommend that you flash the graphics cards directly from the command line rather than directly by ATIWinflash. Start! On Windows 10: In the Search bar, enter “cmd” and you will see “command Prompt” appear, you just have to right click on it and then “Run as Administrator”. On Windows 7: Start/Search bar “cmd” or “Command Prompt”, we open the software by right clicking then “Run as Administrator”. AMD BIOS Change: Command prompt Follow the instructions below exactly this way you can copy this below and paste will be your right click in the command prompt. CD Then the ENTER key on your keyboard. AMD BIOS Change: Command prompt CD "folder name or location of your modified BIOD" and then the ENTER key on your keyboard. Little tip: You just have to go into this folder, right click and then change the address to see the path. Copy this address that is highlighted (= blue) Like this: go back to your “command Prompt” tab and note CD and then right click to paste the path and finally enter key to validate. AMD BIOS Change: Command prompt So we are inside the folder containing our modified BIOSes via the command prompt. This folder contains this: Now specify this as a command prompt: Atiwinflash-F-P 0 “Name of your modified BIOS” by adding. Rom to the end. For the example, we must therefore specify: Atiwinflash-F-P 0 biosmod480. Rom then the ENTER key to validate. As soon as you press the ENTER key, the flash on your graphics card starts. AMD BIOS Change: Command prompt In the last command shown at the command prompt, the “0” is the location of your graphics card on your motherboard and 0 means that it is the first graphics card. For the eager people you can therefore repeat this operation by saying “1”, “2” and so on instead of “0” once the flash of your first graphics card is performed. So you need all your graphics cards to be plugged in to perform this manipulation but as we mentioned before we do not recommend it if it is your first flash of BIOS, make the flash of your graphics cards one by one And then specify “0” each time by replacing the graphics card you just flashed with another one on the same location. When you press ENTER you will see a new window showing this: for Anglophobes: Please wait. The flash is in progress, it can take more than a minute. ” When the flash is finished you will see a window like this: click OK. -do this for each graphics card the way you want. -Uninstall the drivers with the DDU software, just double click on the software and the uninstall procedure starts, be patient. -Reboot your computer so that your BIOS flash is taken into account. -Install the drivers of August 23rd 2017 Crimson Blockchain. -Double Click on the Software “Atikmdag-patcher”, a window will appear indicating “Found value” if our memories are good, this allows to validate the Windows digital signature and your graphics cards no longer have error code 43 (visible in the Device Manager). -do yes to apply the patch and then reboot your computer. Congratulations you just flash your graphics cards!


Step Five

Open Msi AfterBurner, this software will allow us to overclock our graphics cards and manage the speed of rotation of fans. For now, leave the default settings. Note: Msi Afterburner is not indispensable because it is possible to make the settings and overclocking directly in your. bat file But we will not see this on this article. Open HWiNFO64 and check the “sensors-only” checkbox. You will see this: if you lower down you will also see “GPU [#1]” then 2 and so on. You now have to launch your mining software and monitor at the same time HWiNFO64 until you find the right settings. At the beginning, we recommend you to overclock your graphics cards directly on the Msi AfterBurner software. AMD BIOS Change: Msi Afterburner Do not make the same settings as the image above, it depends on:

  • Your modified BIOS
  • The brand and model of your graphics card
  • The internal memory of your graphics card (Elpida, Samsung, Micron, Hynix)
  • The crypto-currency you are undermining because the settings will be different if you undermine a crypto-currency used by the Ethash/Dagger-Hashimoto algorithm compared to the Cryptonight algorithm.

Increase your memory Clock by 10 MHz and check if you have any memory errors on the HWINFO64 software until you find the right settings, increase by 10 MHz every 20 seconds.

  • The Core Clock is usually around 1100-1250 Mhz.
  • The power Limit is to be managed in connection with the power consumption of your graphics cards (meter) compared to the hashrate.
  • The Fan Speed, same thing, there is only you who can know the percentage to be indicated, we recommend not to exceed 75 °c.
  • The Core Voltage must be set directly in your. bat file in the folder of your mining software.

Never rely on the power consumption indicated on your mining software or other software with AMD graphics cards, only a meter will be accurate. The hashrate after BIOS MoD will depend on the brand, model, memory type but also the RAM (4GB or 8GB), the settings listed in your mod BIOS and finally overclocking (Power Limit, core clock, Memory clock, core Voltage). Example, a 480 8GB RX with internal memory type Samsung exceeds the 30 Mh/s on a crypto-currency of the Ethash/Dagger-Hashimoto algorithm without any memory errors visible on the HWINFO64 software, so this means a stable graphics card. All graphics cards can have a hashrate greater than 27 Mh/s on a crypto-currency of the Ethash/Dagger-Hashimoto algorithm with the right settings and a correct overclocking. A rig running with memory errors will cause artifacts, a reboot of the rig (computer) frequently. It is better to have a stable rig rather than a rig that restarts every 10 minutes.   If you have any questions, if you think it is missing something important to add or correct do not hesitate to write a comment.



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