Help, computer is not starting!

[Yoojoo3119]

When I start my computer, it starts for about 5 seconds, then just turns off, then starts again then off again and so on. No beeps or sounds, it just does that over and over again.

I have a separate HDD for boot up. Does it sound like a failure of the power supply, HDD or even the MB?

Thanks for your help

 

[Blain]

When I start my computer, it starts for about 5 seconds, then just turns off, then starts again then off again and so on. No beeps or sounds, it just does that over and over again.

I have a separate HDD for boot up. Does it sound like a failure of the power supply, HDD or even the MB?

Yes, no, maybe

 

[piasabird]

It could just be the operating system. If the Hard Drive fails you may get some kind of a message like no oper syst found.

In a case like this you might have to try removing the hard drive or just unplugging it.

 

[mfenn]

I agree with Blain. It's probably the PSU, could be the mobo.