PC restarting suddenly without warning

[rahulb]

hi,

My PC is restarting again and again without any warning. I unchecked "automatic  restart" from advanced system settings but still the problem is going on.

there is no beep or bluescreen.

I tested the memory, checked disk for errors, hard disk everything. but, still I am unable to find the error.

Please, anyone know what is going on?

System configuration:
Processor : Intel i3
mother board: Intel H61
Graphic card: NVidia (2GB video ram)
4 GB RAM STICK.
Operating system : windows 7 ultimate

thanks

[Geek-9pm]

How long have you had this computer?
When did this begin?
Did you or anybody make changes to the BIOS?
Have you scanned your computer for any kind of virus or malware?

[rahulb]

hi,

I bought it one month ago.

I scanned it for virus and malwares. nothing found

restarting began after 20 days of purchase. Nobody touched the BIOS.

I went to the computer shop they were unable to tell me what is going wrong.

thanks

[patio]

If you bought it one month ago i personally would return it under warranty and demand a replacement...

[bromtheman]

This sounds like the same problem I had a long time ago that you helped me with, and it turned out my CMOS battery had gone bad I would try that they are fairly cheap to buy too

[Geek-9pm]

If you bought it one month ago i personally would return it under warranty and demand a replacement...

That is sound advice.
Anybody who buys a new PC should never have to do any troubleshooting.
BTW: For new PCs the CMOS battery should not b e a problem.