Part of keyboard won't light up

A few weeks ago my keyboard was working fine and lighting up and everything. Now for whatever reason, parts of it will not light up. When I first turn on my system the whole keyboard lights up. After about 10 minutes or so, part of the keyboard will stop lighting up (I attached an image so you can see what I mean). I have tried uninstalling and reinstalling synapse 3 and that did not seem to work. I also went into device manager and disabled the hibernation mode on my usb's and that didn't work either. Does anyone have any suggestions on what I should do? I have a Blackwidow X by the way.