Power Supply not working

[Metalligator]

Recently My power suppy has stopped working, I turn on the switch and nothing happens, the fan doesn't spin and my computer doesn't turn on, anyone know anything that could help?
I don't think it matters but it's 500w and 230v and it's a switch mode power supply.
And yes it is plugged in.

 

[khubani]

If the power supply, for one, isn't powering the components of your computer, or even powering on the computer, and to add on, to have the fun not spinning...it's dead.