No power and flashes of light every ten seconds

I have a HP e92910f. The power comes from start to not work. at the back, the green light is on. the power light flashes about every 10 seconds. Whenever the light the fan made a little movement

Mrvulcan, welcome to the forum.

I doubt that the power supply (PSU) did not.  Here is a guide to help you troubleshoot it:

http://support.HP.com/us-en/document/bph06788

If this does not resolve the problem, here is a guide to help you that you determine what means the flashing of the LED:

http://support.HP.com/us-en/document/c01732674

Please click on the Thumbs up button '+' if I helped you and click on "Accept as Solution" If your problem is resolved.

Tags: HP Desktops

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