Boot problems (VGA led)

[JeroenvAlphen]

Oke so i build my new pc a week ago. My main components are:

- asus rog b550 motherboard 

-ryzen 5 5600x processor 

-radeon 5700 xt videocard

- 16 gb 3200 tridentZ ram

 

My biggest problem is starting up the pc. Most of the time the white problem led(vga) is lit up and the pc won't start. I just turn off my pc and on again. And do this like 3 times before my pc starts up normally without any problems. Sometimes the pc beeps 4 times and also doesn't  startup. Other times it will go into bios and tell me: "the VGA card is not supported by the UEFI drivers"

 

Anyone has any idea what is going on? 

BTW this is my first pc build so not that experienced!

[Zelvan]

I mean all the errors point to the graphics card. Try reseat it, check the power connecters are all in securely. 

Do you know anyone with another GPU you can test to see if it's the issue?

 

 

[JeroenvAlphen]

I have got 6 other gpu's myself so I could check that. I tried reseating the gpu. I am using a vertical gpu mount. Could the extension cable be a problem?