I can’t on power button my PC.it’s dead PC

[Piyaphat]

I can’t on my PC.After i check power cord ,connect and reconnect all cord keyboard mouse display and HDD every thing l do. Then I on power button are no work. My PC not response.

[Prométhée]

hi

The power supply unit indicator light is on, flashing, is there?
When you press the start button, nothing, not a start, the fan running?
What happened just before the problem?
have you tested the wall outlet, try a different one?

[Piyaphat]

hi

The power supply unit indicator light is on, flashing, is there?

-indicator is off
When you press the start button, nothing, not a start, the fan running?

-fan not start
What happened just before the problem?

-before the problem I can use it normally 
have you tested the wall outlet, try a different one?

-I test wall outlet is normal and  i test power cord by Multimeter (Ohm) is normally 

[Prométhée]

hi
If we are talking about the same thing, that the power supply indicator light on the back is off, it is probably dead.

Maybe don't spend money on a new power supply, it might not be it
best, have it tested by a professional