[rogermo3]

The power button on my HP desktop flashes and I cannot start it. I looked at the back of the power supply and it also has a flashing light. I never saw a light on the back of a power supply. Does it need replacing or is there a reset button somewhere?

 

[Terrister]

Try this. Hold in the power button and unplug the computer. Keep holding the power button until all lights go out. Now plug it back in and try to power up. Post back and let us know if this helps.