Monitors Displaying Random Colors and Crashing—What Could Be the Problem?

I'm experiencing a bit of a complicated issue with my setup. I recently upgraded to an AM5 motherboard from an older Intel board (the B850-A) and switched from an Intel 8700K to a 9800X3D processor. I'm still using my old GPU for now, which is a 6650XT, but I plan to get a new one soon.

The main problem is that my monitors randomly display solid colors, often matching the primary color of whatever I'm doing on screen. For instance, if I'm playing a game with a lot of blue, the screen will show solid blue. It also changes colors rapidly during cutscenes, so the entire monitor just shows flashes of solid colors, which is pretty distracting. This can happen on one or both monitors at random times, sometimes when I alt-tab, but it can also just occur out of the blue. My PC remains functional during these moments; the sound is still going, and I can still play the game.

Initially, I thought my GPU overclock and undervolt settings might be to blame since I've had the same setup on my 6650XT without any issues before. I noticed that sometimes it would crash the AMD drivers, showing a message that "your drivers have timed out" and resetting my Adrenalin settings back to default. However, this doesn't happen consistently. I even tried uninstalling and reinstalling the chipset drivers and did a clean installation of the GPU drivers using DDU, but the issue persists.

I've already replaced the DisplayPort cable for my main monitor and the HDMI cable for my second monitor. I also reseated both my GPU and RAM to ensure they're connected properly. I've done all the basic troubleshooting steps I could think of, but I suspect there might be a fault with one of the new parts. I'm looking for any advice on testing to find the source of this problem before I consider RMAing any parts. Any help would be greatly appreciated!