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Drivers and downloads.................................................................................................................................................... 115
Chapter 8: BIOS setup................................................................................................................116
Entering BIOS setup program....................................................................................................................................... 116
Navigation keys.................................................................................................................................................................116
One Time Boot menu.......................................................................................................................................................116
System setup options...................................................................................................................................................... 117
Updating the BIOS...........................................................................................................................................................126
Updating the BIOS in Windows.............................................................................................................................. 126
Updating the BIOS using the USB drive in Windows........................................................................................ 126
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 126
Updating the BIOS from the F12 One Time Boot menu................................................................................... 127
System and setup password......................................................................................................................................... 127
Assigning a system setup password......................................................................................................................128
Deleting or changing an existing system setup password............................................................................... 128
Clearing CMOS settings.................................................................................................................................................128
Clearing BIOS (System Setup) and System passwords.........................................................................................129
Chapter 9: Troubleshooting....................................................................................................... 130
Handling swollen rechargeable Li-ion batteries........................................................................................................130
Locate the Service Tag or Express Service Code of your Dell computer ............................................ 130
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................131
Running the SupportAssist Pre-Boot System Performance Check............................................................... 131
Built-in self-test (BIST).................................................................................................................................................. 131
M-BIST.......................................................................................................................................................................... 131
LCD Power rail test (L-BIST)..................................................................................................................................132
LCD Built-in Self Test (BIST)..................................................................................................................................132
System-diagnostic lights................................................................................................................................................133
Recovering the operating system................................................................................................................................134
Recovering the operating system................................................................................................................................135
Real-Time Clock (RTC Reset)...................................................................................................................................... 135
Backup media and recovery options........................................................................................................................... 135
Wi-Fi power cycle............................................................................................................................................................ 135
Drain residual flea power (perform hard reset)........................................................................................................136
Chapter 10: Getting help and contacting Dell............................................................................. 137
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Contents
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