restart after 4 second

[life24]

Hi,
When i turn on system,The system just four second in turn on.
After 4-5 second automatically restart ... .
This is done successive

 

[Scarpozzi]

A lot of things can cause this. All are hardware address issues.

Try booting with only one memory module and a different video card. Also make sure all of your cables are hooked up correctly and nothing is backwards. Once you remove enough pieces you should be able to establish if the motherboard is the problem or a peripheral causing the issue.

 

[Deders]

What is your PSU?