Yeah, its most likely the video card overheating from the strain, and simply crashing. The VPU error is normal and tells you that something has gone wrong, though usually is recoverable from.
"I had my gfx clock speed to 526 "stock is 499" and i set it back down to 499 and im still having the same problem"
Though thats strange...
Are you sure the fan underneath the card is spinning right? And theres nothing getting in the way of the airflow? Maybe a card in a PCI slot right underneath the AGP card?
In which case, you'll have to move that card down one to give the video card more room to breathe.
WORK ON OTHER GAMES?
Plus, have you tried any other games with the card, and pushed it as far as possible to see if it cracks in the same way?
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