How do I keep my computer from freezing when im playing a pc game?

When ever im playing a game on my pc it always wants to freeze about 15-20 minutes after i start the game. If someone could tell me what the best program could be to stop my computer from freezing that would be great. O and if someone could tell me what to do and what the problem could be. Thanks.How do I keep my computer from freezing when im playing a pc game?you need more memoryHow do I keep my computer from freezing when im playing a pc game?Your computer is heating up when you play the game for long time, your room temperature can be high, or install a high end graphic cardHow do I keep my computer from freezing when im playing a pc game?Try more memory and upgrading your video card:

http://www.crucial.comHow do I keep my computer from freezing when im playing a pc game?
If your computer is not working properly while you are working on it, it could be a problem with device drivers, hardware or software.

Detailed instructions at http://tinyurl.com/yk5zpr