hey, i just got finished putting together a computer. i was so excited to turn it on... and... nothing. yes, i have the power cables plugged in and everything, i highly doubt it's something wrong with the power supply because the LED on the mobo lights up. i have the power switch and everything plugged into the right place on the mobo and everything. i've double and triple checked. but when i press the power button no fans try to start up, no drives start up. i just want to know if theres something i could be missing before i go and exchange the mother board for a new one.