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PCI-Express Render Test (Failed to find file d3dx43.dll/White Background Screen)

Jerbs

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Greetings guys!

This is my first post here on the forum, and if there is a post that is the same or similar to this one, or if I am breaking any rules, please direct me to the correct post and then disregard this post.

What comes to mind is the following. I have a video card, AMD Radeon RX 570 XFX RS Edition 8 GB, and lately it has been getting quite hot, and after the card routinely always reached 90ºC when at maximum load, I decided to do an undervolt, I lowered it from 1150 mV to 965 mV. The board even responded well to this drop, having frozen once or twice when I was adjusting the best parameter for the undervolt. However, I already noticed some horizontal, very moderate, static in areas of the screen where the color was lighter than a darker color around it. Well, with the undervolt, the temperature dropped by an average of 10ºC when at maximum load, and playing a game yesterday I noticed a yellowish haze covering the entire field of vision wherever I looked, in 360º, always in the middle of the screen. It was then that I decided to restart the system and play again without the undervolt parameters, and the card started to heat up a lot again, but it no longer showed the yellowish fog that I mentioned above.

So I decided to do a Render Test using GPU-Z, using the latest build released. At first the software alerted me to the absence of the file, d3dx43.dll, and then I downloaded the file suggested by the software and installed it immediately. After closing GPU-Z and restarting the system and running the Render Test again, the warning about the absence of the dll file no longer occurred, but the Render Test starts and remains on a white background screen, apparently, it does not start or does not run. What could this problem be, is it a problem with my operating system or my video card?

Detail: I have Windows 11 Professional 24H2 64-bit installed.

Thanks for help!
 
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For the DLL errors, Install DirectX runtime, should fix it. While at it, also install the C++ redistributables, it'll fix almost all compatibility issues you'll ever have with any app


As for the graphics bugs, do a full reboot (use command prompt, shutdown -r -t 0) to clear Windows' kernel memory and then increase core voltage until it stops happening.
 
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