Computer restarting while playing games

Hi ,

Can anyone please help me with this. My PC is restarting while playing games. It has Windows 7 32 bit OS and Graphics card Nvidia Geforce GT 240. Below is the error i am getting

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional information about the problem:
BCCode: 116
BCP1: 85F5B510
BCP2: 913735F6
BCP3: C000000D
BCP4: 00000003
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1
Files that help describe the problem:
E:\Windows\Minidump\032613-19110-01.dmp
E:\Users\SAPNA\AppData\Local\Temp\WER-45801-0.sysdata.xml