While you wait for answers, we may have found some information which could help you.
Click here for Dell Laptop Adapter
Dell latitude c400 intermitent lines on screen?
My Dell Inspirion Windows 10 laptop has no network socket?
how to fix my g520 laptop?
device driver downloads for Dell Latitude E6400 PCI Port & PCI Controller?
My laptop is showing it is not connected to the network, but it is?
how to repair my blank screen?