3 System Setup....................................................................................................... 23System Setup Overview...................................................................................................................... 23Boot Sequence.................................................................................................................................... 23Navigation Keys................................................................................................................................... 23Updating the BIOS ..............................................................................................................................24System Setup Options.........................................................................................................................254 Troubleshooting.................................................................................................28Enhanced Pre-Boot System Assessment (ePSA) Diagnostics........................................................... 28LED Error Codes..................................................................................................................................28Battery Status Lights............................................................................................................................295 Specifications...................................................................................................... 306 Contacting Dell................................................................................................... 35Contacting Dell................................................................................................................................... 354