Trouble shoot with me?

Butfiend

Reputable
Jun 25, 2014
9
0
4,510
Hello, I just finished putting together my first pc build and it was great loads of fun and surprisingly easy! I go to plug in my new computer and as soon as I plug it in I see the motherboard power LED light up and I am so excited because I thought that that meant that it would all work fine, but when I press the power button and I expect there to be fans turning and lights flashing. Nothing happens. I then thought that I had simply done the front panel hook-ups wrong and go to check on them, but all is in order. Any ideas to why it is not starting up? Please someone tell me that I am just stupid and forgot to press something or to plug something in! And I realize that I'm not giving any useful information so feel free to ask me anything you need to know!
Parts list:
core- AMD fx-6300
MoBo- ASUS m5a78l-m lx
pcu- EVGA 500w
gpu- GIGABYTE raedon r9 270x
memory- 8GB (2 x 4GB) 240-Pin DDR3