Bad GPU or something else? Help.

I built my PC about six months ago with the following specs

CPU: 7800X3D GPU: 7900 xtx Motherboard: MSI b650 wifi PSU: Corsair 1000w

Initially it worked great, however, it started to completely drop me from games I was playing. I started by updating drivers including ddu prior. It would work initially after doing this but would always start crashing again. At this point I had tried everything I read about: updated bios, chipset drivers, windows 11,l reinstall and disabled the driver update, re-seated everything in the PC (except CPU), I even replaced the PSU so that I could have individual pcie cables plugged into the GPU. None of this worked so I was able to RMA the GPU and just got it back today.

I started up my PC with the new GPU, DDU'd previous drivers, installed the latest drivers and started up a game. It worked great. Closed the game and about 30 minutes later went to start the game again and now it will just black screen any game I try to load. I tried to revert the driver's back to 23.11.1 and still nothing. What could this be?? Is something else bad in my PC?