Yeah I thought it was Dota 2 punya issue but other games pun ada the same thing. Different artifact patterns on different games but the main thing is the artifacts themselves. The card and the system shouldn't be a problem kan. Because so many builds out there lebih kurang je using 670 with no issue. But there is one thing tho, I noticed when I touch my casing, ada a small electric shock. Could it be that all this while that the power surge damaged the card?