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Hp pavilion 513n tries to start up then turns off

\015 Hp pavilion desk top 513n tries to start up then turns off, the green ligh on the power supply also goes out when this happens and the green light on the from stays on. if i hold the power button on the front ( Acts like hybernation mode) the green light on the front goes out and the power supply green light comes back on.....is ithe power supply?\015

Answers :

This is a case where something that is getting switched on during start-up is causing the power supply to fail... probably due to a short. How ever I believe the short is in the power supply

This is an older HP model ( I have a 530N) with teh same problem. I bought a new power supply and installed it.
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