Removing the palmrest....................................................................................................................... 21Installing the palmrest.........................................................................................................................22Removing the speakers ......................................................................................................................22Installing the speakers.........................................................................................................................23Removing the Input/Output (I/O) board left......................................................................................23Installing the I/O board left.................................................................................................................24Removing the Input/Output (I/O) board right................................................................................... 24Installing the I/O board right.............................................................................................................. 25Removing the heat sink assembly...................................................................................................... 25Installing the heat sink assembly........................................................................................................ 26Removing the video card....................................................................................................................26Installing the video card...................................................................................................................... 27Removing the display assembly..........................................................................................................27Installing the display assembly........................................................................................................... 29Removing the system board...............................................................................................................29Installing the system board.................................................................................................................303 System setup........................................................................................................32Boot Sequence.................................................................................................................................... 32Navigation keys................................................................................................................................... 32System setup options..........................................................................................................................33Updating the BIOS ............................................................................................................................. 44System and setup password............................................................................................................... 44Assigning a system password and setup password..................................................................... 45Deleting or changing an existing system and/or setup password.............................................. 454 Diagnostics.......................................................................................................... 47Enhanced Pre-Boot System Assessment (ePSA) diagnostics............................................................ 475 Troubleshooting your computer.....................................................................48Device status lights............................................................................................................................. 48Battery status lights.............................................................................................................................496 Specifications...................................................................................................... 50Technical specification....................................................................................................................... 507 Contacting Dell................................................................................................... 574