guys pls help I've been gaming happily for motnhs, but now I'm seeing green sparkles after I applied a memory overclock. screenshot from tonight:

The card is a RX 5700 XT. I'm torn between 'it's a software thing' and 'start saving for a new GPU'. How do you actually narrow this down?
I'm comfortable running tests and checking logs, just not opening the card if I don't have to. Any advice on what to check first is welcome. im about to throw this thing out the window lol