I just built a pc case light turns on nothing else

i just built a pc the case light turns on nothing else no fans nothing and i checked all the conection there all good

What are the compenents of your computer (CPU, Motherboard, RAM, HDDs, GPU/s etc.)? Which PSU are you using?

amd a10

corsair 500 watt power supply

no gpu

asrock fm2 a75 dgs mobo

corsair vengence 2133 mghz ram