Game shuts down PC cold, within 30 seconds

[David_VI]

So the game launches,  go into Solo,  open Tutorial, can do a bit of tutorial then around 30 seconds the PC just turns off, cold. No warning, no blue screen nothing.

 

PC runs other games okay,  granted it's an old system but while the tutorial is running it is performing fine.

Q6700

8600gts

4gb

vista 64bit

 

Any way I can investigate this issue? 

[David_VI]

Cold was the clue here....   Stupid me, for some reason the CPU is reaching 100C. Re-applied thermal paste and see how we get on. Odd it's PZ that pushes it!