While you wait for answers, we may have found some information which could help you.
Click here for Dell Inspiron Battery Powerhow to repair my blank screen?
dell inspiron 5040 plugged in not charging?
How to fix dell Inspiron 5040 laptop windows 7?
Dell latitude c400 intermitent lines on screen?
DELL won't turn on?
device driver downloads for Dell Latitude E6400 PCI Port & PCI Controller?