I Play A PC Game, And My Computer Turns Off?

If your computer is spontaneously powering off under load while gaming, then it's your power supply. And it's from either not being sufficient-enough to run your graphics card, or, it's become defected. If your processor were overheating, Windows would give you a BSOD and freeze, not spontaneously power off. If your RAM were bad, then you would get a BSOD and automatically restart, not power off. If it were your hard drive, then Windows would freeze and/or slow down to an unresponsive state, not power off. If your power supply is defected, and/or not sufficient-enough: then yes, your computer would spontaneously power completely off like you're describing. So replace it. Consider: a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16817341016" rel="nofollow"http://www.newegg.com/Product/Product.as…/a