Tyler-
Two things could be going on:
1. The CPU was permanently damaged by the heat from earlier.
2. If you can run SuperPI and other programs without failure but a game causes system crashes then look to the game as the problem. How many programs cause the sysetm to crash now? As I remember you were having freezes and BSODs all the time. Things seem to be limited to just a couple or just one program as of now and it is a crash right, not a BSOD.
If you suspect the CPU then pull off the HSF and apply some Arctic Silver and reattach it. Sometimes that is all it takes.