PC Crashes on games.

[Stanaccy]

I have an HP 1 gb ram, intel celeron 3.4 gb processor and 256 mb geoforce 6600 graphics card. Yet on certain games it crashes after 5 - 10 minutes .
I have increased the virtual memory and defragged twice yet it is still doing it. Oh I have checked requirements on the games before playing them (Maybe dim but not that dim

Is there anyone who can give me some help on this as I am beginning to think the only way out of this is to buy a new one.

Thanks

 

[sparhawk]

Possibly the graphics card is overheating, try running the games with the side off the case and see if that improves it. Also those cards need to have a power lead plugged into them from the psu so check that it has. Make sure that you are running the latest drivers from Nvidia.