computer failing to start

[Joaquín Fernández]

Hi,
At first the computer needes three o four tries to start. I pressed the start button and it goes a little and then become dead. It used to do that two o three times until it actually start. Then one day instead of starting it stay running but is unable to load anything at all. Black screen and three "bips" every few seconds. The fan is working. Any help?

[Joaquín Fernández]

I didn't install anything on it. It started to do the problem without warning. I have cheked the fan and works fine, also the posible loosen component. Everything seems fine. The motherboard was replaced one about 16 months ago and was working fine for at least a year.

[GX1_Man]

What computer make and model? Do you have a good power supply to test with?