Ethernet and audio board................................................................................................................................................ 78
Removing the ethernet and audio board............................................................................................................... 78
Installing the ethernet and audio board..................................................................................................................79
Fan and heat-sink assembly............................................................................................................................................80
Removing the fan and heat-sink assembly .......................................................................................................... 80
Installing the fan and heat-sink assembly ............................................................................................................. 81
Power-button assembly...................................................................................................................................................82
Removing the power button..................................................................................................................................... 82
Installing the power button....................................................................................................................................... 83
Palm-rest and keyboard assembly.................................................................................................................................84
Removing the palm-rest and keyboard assembly................................................................................................ 84
Installing the palm-rest and keyboard assembly.................................................................................................. 85
Chapter 7: Software.................................................................................................................... 87
Operating system.............................................................................................................................................................. 87
Drivers and downloads..................................................................................................................................................... 87
Chapter 8: Technology and components...................................................................................... 88
Chapter 9: BIOS setup.................................................................................................................89
Entering BIOS setup program........................................................................................................................................ 89
Navigation keys..................................................................................................................................................................89
One Time Boot menu........................................................................................................................................................89
System setup options.......................................................................................................................................................90
Updating the BIOS............................................................................................................................................................ 99
Updating the BIOS in Windows................................................................................................................................99
Updating the BIOS using the USB drive in Windows..........................................................................................99
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 100
Updating the BIOS from the F12 One Time Boot menu................................................................................... 100
System and setup password..........................................................................................................................................101
Assigning a system setup password...................................................................................................................... 101
Deleting or changing an existing system setup password................................................................................101
Clearing CMOS settings.................................................................................................................................................102
Clearing BIOS (System Setup) and System passwords.........................................................................................102
Chapter 10: Troubleshooting...................................................................................................... 103
Handling swollen rechargeable Li-ion batteries........................................................................................................103
Locate the Service Tag or Express Service Code of your Dell computer ............................................ 103
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 104
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 104
Built-in self-test (BIST)..................................................................................................................................................104
M-BIST......................................................................................................................................................................... 104
LCD Power rail test (L-BIST)................................................................................................................................. 105
LCD Built-in Self Test (BIST)................................................................................................................................. 105
System-diagnostic lights................................................................................................................................................106
Recovering the operating system................................................................................................................................107
Real-Time Clock (RTC Reset)...................................................................................................................................... 107
Backup media and recovery options........................................................................................................................... 107
Wi-Fi power cycle............................................................................................................................................................ 107
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