AMD began actively resisting Nvidia back in 2016, as evidenced by their recognition as the best video cards for mining. The latest representatives of the RX 400, RX 500 and RX 5000 line were not an exception either, and are coveted by every cryptocurrency miner. By adjusting some of the GPU parameters can improve the overall performance of the device, and this is done with special programs such as red bios editor.
Why to adjust the parameters of a video card for mining
Here everything is simple:
Reducing the temperature of the graphics chip and memory;
reduction of noise indicators;
reduced power consumption.
All this positively affects the speed of mining, so you should not disregard this opportunity. Especially since the use of all the software is free, and you do not have to buy a soldering iron or any other tools to configure it.
Red BIOS editor is able to work with the BIOS of the graphics processor, so you first need to extract it from the installed device. For that you can use freeware application TechPowerUp GPU-Z:
Graphics Card BIOS
Downloading the video card BIOS is very easy, just click on this button:
Download video card BIOS
The process will take a few seconds.
This is the next program we will need. In it you will be able to change some parameters of the graphics adapter. Note that in this case you don't make changes to the BIOS itself, but create a separate "configuration file", which you will need later.
Specify your GPU on the top line, and load the BIOS file downloaded via GPU-Z. This will open up access to various features
The voltage vs. frequency curve. It is better not to touch these parameters, as the internal video card driver will set them all up later on its own.
Apart from the "Curve" tab, you can make your own changes in the others. Since in the case of different graphics adapters, their manufacturers, batches, etc. the results will be different, here we will not consider separately each indicator. It is recommended to proceed gradually and carefully, or to search for ready-made configuration files on the web, if someone has already improved the GPU BIOS before you. However, not everything can fit here either, as there are several batches in one series, and they still differ from each other.
Next we do "SAVE" and get the necessary configuration file.
After installing the program, you need to load the .rom file into it and go through the training received when working with GPU-Z:
Load the configuration file from the MPT:
The "VRAM Timings" tab allows you to fit the BIOS if it was taken from some other video card and you want to flash it to your own:
The "VRAM Timings" tab
The problem here can be identifying the manufacturer of the memory chips, as there are several, e.g:
To find them out, you would have to take out the video card and probably remove the cooling cover to physically access the chips and their markings. We do not recommend doing this, because in the case of an error you will get a brick that can not be restored under warranty, and the service center will take a lot of money for it. It is better to take the BIOS exactly from your card, make changes in it, and then flash it back.
Save the BIOS with the configuration, and at this point the work with the Red BIOS editor is done.
Flashing BIOS for AMD RX graphics cards
There are various flashing programs available. However we will use AMDvbflash as we consider it the most stable and convenient. It comes in an archive and you should extract it to the root of your C drive to simplify further commands. The modified BIOS is also placed in the folder with it.
Using CMD in Windows, go to the root of the folder, entering the following commands in sequence:
cd /d C:\the name of the folder with the unpacked program.
Then we type the following:
amdvbflash -unlockrom 0 - unlock for the upcoming video card firmware for mining.
amdvbflash -f -p 0 file name BIOS.rom - directly start the flashing process.
Next, the application will perform the necessary operations and ask you to restart the computer. That's all, the new BIOS is flashed and all settings from the previous steps are applied.
Why do you need to flash GPU BIOS?
As a result, with the help of Red BIOS editor and related programs, you can reduce the power consumption of the GPU, which will reduce costs and heat dissipation of the chip. As a result, the cooler will not have to spin at full speed, which will have a positive impact on the emitted noise. Increasing the frequencies will increase the hash rate of the video card, hence the income from it in a farm or personal computer. These are all subtle issues, but their usefulness deserves some time to study specific parameters and select suitable settings.
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