Alright sounds good, i thought i may have had to do something much much more complicated than that like modifying gpu bios, but this sounds alot easier. i may trie it, so artifacts are basically strange things on the screen like wrong colored pixels, right?
Flashing, crashing, strange colours/lights ect.
Biggest concern is the heat output under FULL GAMING LOAD!
If you overclock it, do not think hey it runs at 65C during this game, make sure it is being stress to 100% usage! Those are the temperatures that matter.