Solved PC does not give any video output after restarting my pc

Hello,

yesterday I finished building my new PC with a new motherboard (MSI X570s Carbon Max Wifi), two new additional RAM Sticks Corsair Vengenance 16GB 3600 CL 18, and some new fans. The other parts of my old computer moved into the new one (RTX 3080 TI and a ryzen 9 5900x. When I finished building my PC I initially also had trouble to see a video output but I then switched my graphics card bios from 'gaming' to 'silent' and then video output over HDMI worked. I installed a new windows11 version and went on with customizing my system (rgb software and other stuff, also did a bios update and enabled xmp). I then wanted to restart my system because I had previously installed MSI Dragon Center but then deleted it once I realized that it messed with my rgb on my RAM Sticks. So after restarting my system I somehow got no video output. The debug LED show nothing and everything works as expected (all fans are spinning, all RGB Leds are on). The only thing not working is my video output.
Since then I started unplugging all cables on my power supply and plugging it back in. I tried removing the RAM Sticks and see if on RAM stick works. By doing that I got the error code 02 on my motherboard which according to msi means 'AP initialization before microcode loading'. I then tried every RAM stick a time but the error stayed. But once I install all 4 RAM sticks the error is gone. (pretty weird?)

So right now I am out of options. I dont have another graphics card that I could test nor do I have another motherboard since I already sold my old one.
Could my graphics card be damaged? Or somehow my power supply? But then again everything that needs power works.
I also think I am able to boot into windows. I dont get video output but once I start typing my password with my keyboard and hit 'enter' a led on my keyboard is on that is only on when I am in windows?

Does someone have an idea on what I could do here?

phillpower2 said:

Try a different video cable, screen and alternative video port on the GPU.

What is the brand and model name or number of the PSU.



The RAM is not appropriate for your CPU, AMD state here up to 3200MHz and if you have XMP enabled the RAM will get auto OCd past what the CPU can handle and the PC fall over.

Click to expand...

I tried a different Video cable. Both with HDMI and DP and also tried all GPU ports.
PSU is the Corsair 850W HX850.

Never realized theRAM was not supported... Still on my old system I had 2 RAM sticks and everything seemed working just fine. Now when I try 1 or 2 RAM sticks the PC is stuck at AP initialization before microcode loader (cant remember exactly) but when I plug in all 4 RAM everything boots normally just with no video Output. I can now also confirm that I actually get into windows because I managed to shut down my PC via blindly entering the CMD order for it.

I am starting to think my GPU is damaged...

Yeah, i might need to take everything apart... Tomorrow I can try out the GPU of a friend so I can rule out a broken GPU on my end... I will reply back once I tested that

So I can now confirm that the system itself is working fine. The GPU from my friend worked and I got video Output. Tomorrow I can test my graphics card on his system just to see if my GPU and motherboard combined cause some issues...
If the GPU works on my friends PC then I think the BIOS update I did messed Something Up.

So my friend testet my graphics card on his system and it works. His GPU also works in my system. Really strange... I wonder what causes this behaviour of just not giving video output. Does anyone have an idea as to what might cause this issue?