I have been told on other sites that it was a power issue with the gpu not being to have enough power from the board. I have returned the old gpu (that does work, i replaced it twice and the gpu wouldn’t work) and instead got a RX 6500 XT, which should have a port to get some extra power. If that gpu doesn’t work, I’ll update the post. 
Nothing works for GPU to work I have done absolutely everything. I have even installed a 500w power supply on my Dell Inspiron 3891. But my new gpu, a rx 6400, freezes after a minute. This is getting on my nerves. I have installed my graphics drivers constantly over and over, done a fresh install of windows, used safe mode, did a complete uninstall of graphics drivers, and now have installed a 500w power supply to overkill its 360w need. And yet, the computer entirely fails.A light constantly blinks showing that the SSD is working. Specs:Core i5 11400k12 gb ramRX 6400a 80 bronze power supply of 500w60hz LG monitor   (I cannot buy anything more, I have gone way past my budget already.)
Dell Inspiron 3891 and RX6400