Monitor problem graphic

[kianhui2003]

I bought a new GT730 and when i plug into my desktop then when i open my monitor nothing come out but the power supply is workimg and i saw the graphic cards fsn is running too . What should i do

 

[RaytjeKn]

You say your psu is working, but is it enough? It might be underpowered. How much watt does you psu deliver?

 

[kianhui2003]

You say your psu is working, but is it enough? It might be underpowered. How much watt does you psu deliver?