I know why the ram light is on, but why is the cpu on? Also another question. Why is...

[Michael Fleming]

I know why the ram light is on, but why is the cpu on? Also another question. Why is the big white fan not running? I'm not good with the front panel to motherboard.

Update: Got the big white fans working. Still need help on why the cpu light is on

 

[Isaac Thomas]

One of my nzxt fans didnt run for a few days and one day I gave it a flick and it started working so give that a go, no idea about the rest