Computer Reboot Automatically While Playing games

[Naveenviruz]

My computer is restarting without warnings while playing games like NEED FOR SPEED.I have windows 7 Ultimate O.S.There is 4GB RAM.The processor is INTEL CORE 2 DUO.The display adaptor is Intel(R) G41 Express Chipset.There is no Graphics card in my computer.The Processor temperature is +48C.The Motherboard temperature is +47C. If you want any more details,reply to my thread...

 

[Vivek Kumar Singh]

i guess u should buy a graphics card, i guess there can also be a prob with SMPS....

 

[jznightmare]

turn off the auto reboot then you'll be able to see the bsod and the error message it says.

 

[Naveenviruz]

turn off the auto reboot then you'll be able to see the bsod and the error message it says.

I turned off the auto reboot.The system restarted and i did not see the bsod and error message.What do u think?,Is it due to the dust?