[CRASH] Vel'Koz freezes computer

So far, there has been two situations under which playing Vel'Koz freezes my computer:

SITUATION 1: Playing team builder twice in a row SITUATION 2: Binding with Kalista

Before the computer freezes, it gives out a noise like a transformer and huge frame drops ensue. This only happens when i play Vel'Koz. Everytime I play Vel'Koz under one of these situations, it freezes 100% of the time. This persists even after the game has ended and the only way I seem to have temporarily fixed the issue is to reinstall the client. However, if the conditions are met, the game will freeze my computer again.