Bottom case fan not spinning

Moosay

Honorable
Jun 14, 2012
14
0
10,510
Hello My name is Moosay . I just finished my first build in the Nzxt tempest 410 elite and when trying to turn it on the top fan spins but the bottom front fan doesn't. I plugged the the fan header into the motherboard but it still doesn't spin any ideas?
 

Moosay

Honorable
Jun 14, 2012
14
0
10,510
Ok, I plugged it into the molex plug from the power supply but its still not spinning. Also what's this about having to turn it on through the computer, do I have to do that in the bios?