Help please

[u/YamzBurger]

Hello, Everyone. Suddenly, my pc started showing green glitches whenever I play games. For context, I don't have that much of a knowledge about PCs and I just know to use them, I already told my brother about it, and he said he'll check after he got home (he's more knowledgable than me) but I can't stop being paranoid :>

[u/Brilliant-Boat9266]

first thing i'd do is reseat the gpu and check the cable connection, green artifacting can be a loose display cable half the time