Pc won't boot

[brattys]

got a gateway gt 5228 64 x2 4200, 4gb ram sata hd ,xfx windows 7 32bit ultimate, 9500gt, press power button it lights up nothing happens no lights,beeps nothing???

 

[mukitbinazad]

check if you have you plugged in the power button to the motherboard header correctly?
also check if you have plugged in your power supply cables to all the necessary points..