PC restarts alone during games!

[Prophet]

Hello,

I bought PC components and installed it myself.
Everything works fine except when I'm playing games whose graphics level is high. If the level is low graphic no problem.

As soon as I set the level high enough graphical means a "TZZZZ" strong enough then the PC suddenly only 2 seconds and restarts.
Do you know what is the problem?

Yet everything is new and the graphics card should follow ...
My PC configuration is as below:
WIN XP SP3
Intel Core 2 Duo 7300
Nvidia 9800GTX 512mb
Food 650W (2x PCI Express 2.0)
160GB hard
DVD rom
1gb ram
3 fan

Thank you in advance for your help!

[Otto]

Hello,

you should Check your tensions and temperatures with NOD32 Antivirus 3.0.669

If possible Post the full report.

Does directx is up to date on your PC? This is the 9.C under XP.

[Adripathi]

I had a similar problem, and strangely, it happened only been ripped... In the tower and pasting a fan area opposite the CPU, its not rebooted more ... is it too hot or defective food. You can check with Zalman speedfan.

[Jarvis]

It is true that for -3.90 V -5 V, it fears a tire ...

To check your tension, you can go in the BIOS but not very practical.

You can also use SIW seems fair to me.
Version without installing SIW: http://www.gtopala.com/download/siw.exe