Hello I am experiencing issues with my bios artifacting unless I plug one of the monitors into the motherboards HDMI slot.

First I thought it might be due to the difference in resolution or the fact that 1 of the 1080p monitors was plugged in via HDMI instead of DP but after some testing i don't think that is the issue because of what happens when I plug only the 1440p monitor and the Samsung monitor no artifacting happens, same if i plug in each monitors individually or pair them together nothing happens, it is only when all 3 are plugged in together that the artifacting begins.

Then I thought it could be because my other 2 monitors have color format RGB and my Samsung has color format YCbCr444, but then I am confused why there isn't an issue if I just pair them with each other. Does anyone have an explanation or is my gpu just damaged? I have another monitor ill dig up and test with to see if it is an issue with the monitor itself or if I can round down the issues to cable/gpu.

I have also done testing with OCCT for any gpu, cpu or ram errors and I have never gotten any errors on OCCT even when I have done quite a bit of testing.

I hope I managed to give enough info to maybe diagnose the issue.

Thanks in advance for any help. 

PC Specs: Most of the pc is \~9 Months old

CPU: AMD 9800x3D (PBO -15)

GPU: Powercolor RX 7900 XTX Hellhound (Underclock Core 2900 mhz, Vram 2614 mhz, voltage 1150)

MB: Asrock x870 Pro RS, Bios Version 3.50

RAM: Juhor Memoria ddr5 6400 mhz, Currently running on generic buildzoid 6000 mhz profile

PSU: NZXT C1200 Gold 3.0

  
Monitors:

Gigabyte GS27QXA 1440p 240hz (Running at 240hz) Plugged in via DP cable

Asus VP248QG 1080p 75hz (Running at 60hz) Plugged in via DP cable

Samsung S24D390 1080p 60hz (Running at 60hz) Plugged in via HDMI cable

Weird artifacting in BIOS when 3 monitors are plugged in but no issues with the pc other than that.