System setup................................................................................................................... 103Boot Sequence................................................................................................................................................103Navigation keys...............................................................................................................................................103BIOS overview................................................................................................................................................ 103Entering BIOS setup program.......................................................................................................................... 104System setup options....................................................................................................................................... 104Clearing CMOS Settings.................................................................................................................................. 107Procedure..................................................................................................................................................107Clearing forgotten passwords.......................................................................................................................... 108Procedure................................................................................................................................................. 108Flashing the BIOS............................................................................................................................................108Troubleshooting...............................................................................................................110Enhanced Pre-Boot System Assessment (ePSA) diagnostics................................................................................110Running the ePSA Diagnostics.................................................................................................................... 110System diagnostic lights....................................................................................................................................110Flashing BIOS (USB key)...................................................................................................................................111Flashing the BIOS............................................................................................................................................. 111Backup media and recovery options.................................................................................................................. 111Wi-Fi power cycle............................................................................................................................................112Flea power release........................................................................................................................................... 112Getting help and contacting Dell....................................................................................113Self-help resources...........................................................................................................................................113Contacting Dell................................................................................................................................................1138