XFX RX 580 Graphics Card Repair - No Data on Screen Problem

In this video we repaired the XFX RX 580 graphics card
The model of this full-screen card is RX-580P8D VB.0
The problem with this graphics card is that it works and does not display data on the screen, i.e. the screen remains black despite the fans working
First, we tried to check the card using the ATI TSERVER program in order to detect the fault, but we did not get any important results because the card did not respond to the scanning program!
We then moved to check the card in the Windows environment to discover that the system recognized the graphics card incorrectly with an exclamation mark! And giving error code number 43
After trying to get more information about the fault using the GPU Z program, we were also surprised by the large lack of readable information!
We then checked the power circuits to find them all intact.
We then tried to change the graphics card mode from normal to high performance, but we did not get any positive results, although the card is sensitive to changing the switching button between modes, as was proven practically by measuring the paths of the BIOS chips on this card. By analyzing the data displayed on the oscilloscope screen, we found a malfunction in the BIOS systems of both chips!
After struggling with searching, a correct copy of the BIOS files for this card was found, and the chips were programmed with it so that the device returned to working perfectly, praise be to God for His grace. Finally, an illustrative (anatomical) image was attached for all the voltage values ​​and impedances for the most important circuits on this graphics card for the purpose of spreading the benefit and sharing it with our followers. We hope you enjoy and benefit from watching
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