While you wait for answers, we may have found some information which could help you.
Click here for Power Charger WorkingHow to fix dell Inspiron 5040 laptop windows 7?
how to repair my blank screen?
My laptop is showing it is not connected to the network, but it is?
DELL won't turn on?
dell inspiron 5040 plugged in not charging?
audio device drivers for Dell Latitude E6400?