While you wait for answers, we may have found some information which could help you.
Click here for Dell Laptop ComputerDELL won't turn on?
device driver downloads for Dell Latitude E6400 PCI Port & PCI Controller?
audio device drivers for Dell Latitude E6400?
Dell latitude c400 intermitent lines on screen?
how to fix dell inspiron 1545 date and time?
My Dell Inspirion Windows 10 laptop has no network socket?