How to tell if a game crash is a result of an unstable OC

[Goose]

I was just playing Fallout 3 and it randomly crashed with "this program has stopped working" box. Im just wondering if that's a sign my OC is not stable or if it would have crashed in a different manner (blue screen or whatever).


Thanks

 

[Goose]

I only OC'd a few days ago for the first time ever and its been fine so far. I've done 4 hours of Prime Small FFT and about 2 hours of blend with no issues. It's extremely inconvenient for me to do the whole 8 hour jobby as i'm never out the house that long or off the computer that long when i'm home.