Buildapc

Sorry if there's a better community to put this in.

Basically title, I have a 9070xt and whenever I turn my PC on, the GPU turns on (RGB and fans), but I don't get any post or display to either of my two monitors. I only know the rest of the PC is working because I can ssh in. According to fastfetch my GPU is "mesa llvmpipe". After taking the 9070 out and putting my old 6700xt in, everything seemed to work fine.

I brought it to a PC shop just to see if everything still worked. The 9070 worked in their machine, and it also worked when they put it back into mine. I didn't touch anything, brought it back home, and now it's back to it's previous behavior.

I already have a new psu on the way (550w made sense when I first put the system together) but I'm not actually sure it's causing my current problem because it worked at the PC shop.

Any help or insight would be appreciated and I can update with more information if required