No do not worry.
As you are still having the issue, and your system is running at stock. That can only mean we have a component problem.
Can you start by running memtest for your ram.
Motherboards do not cause the problem you are describing in game. They will freak out all over the show not just in one game. So either your graphic driver is corrupted, or the game is corrupted but I am sure you have downloaded both again. So.... memtest time.