Dell Precision 7780 - Page 5

Chapter 3: Drivers and downloads............................................................................................... 94
Chapter 4: BIOS setup.................................................................................................................95
Entering BIOS setup program........................................................................................................................................ 95
Navigation keys................................................................................................................................................................. 95
One time boot menu.........................................................................................................................................................95
BIOS setup options........................................................................................................................................................... 96
Clearing chassis intrusion alert............................................................................................................................... 107
Updating the BIOS.......................................................................................................................................................... 108
Updating the BIOS in Windows.............................................................................................................................. 108
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 109
Updating the BIOS using the USB drive in Windows........................................................................................ 109
Updating the BIOS from the F12 One-Time boot menu...................................................................................109
System and setup password..........................................................................................................................................110
Assigning a system setup password...................................................................................................................... 110
Deleting or changing an existing system setup password.................................................................................111
Clearing CMOS settings.................................................................................................................................................. 111
Clearing BIOS (System Setup) and System passwords..........................................................................................112
Chapter 5: Troubleshooting........................................................................................................ 113
Handling swollen Lithium-ion batteries....................................................................................................................... 113
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................113
Running the SupportAssist Pre-Boot System Performance Check............................................................... 114
Built-in self-test (BIST).................................................................................................................................................. 114
M-BIST.......................................................................................................................................................................... 114
LCD Power rail test (L-BIST).................................................................................................................................. 115
LCD Built-in Self Test (BIST).................................................................................................................................. 115
System-diagnostic lights................................................................................................................................................ 115
Recovering the operating system.................................................................................................................................117
Real-Time Clock (RTC Reset)....................................................................................................................................... 117
Backup media and recovery options............................................................................................................................ 118
Wi-Fi power cycle.............................................................................................................................................................118
Drain residual flea power (perform hard reset)........................................................................................................ 118
Chapter 6: Getting help and contacting Dell............................................................................... 119
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