Stick a piece of copper wire into one of the power cable plugs, put your tongue on the other end of the wire. You'll know quick enough if its working.
Seriously, there's no good reason for it not to be working if its new.
Anyone attempting the above instruction (which was put in for a bit of mild humour) should be caned for being stupid!
"Now drop your weapons or I'll kill him with this deadly jelly baby." :wink: