Dell Latitude 7280 Owner's Manual page 5

Docking options................................................................................................................................................................. 52
Port and connector specifications................................................................................................................................ 52
Communication specifications....................................................................................................................................... 53
Camera specifications...................................................................................................................................................... 53
Touchpad specifications.................................................................................................................................................. 53
Display specifications....................................................................................................................................................... 54
Physical specifications..................................................................................................................................................... 55
Environmental specifications..........................................................................................................................................55
Chapter 4: System Setup............................................................................................................ 56
BIOS overview................................................................................................................................................................... 56
Entering BIOS setup program........................................................................................................................................ 56
Navigation keys................................................................................................................................................................. 56
One time boot menu......................................................................................................................................................... 57
System setup options.......................................................................................................................................................57
General screen options.................................................................................................................................................... 57
System Configuration screen options.......................................................................................................................... 58
Video.................................................................................................................................................................................... 60
Security screen options................................................................................................................................................... 60
Secure Boot screen options........................................................................................................................................... 62
Intel software guard extensions screen options........................................................................................................ 62
Performance screen options.......................................................................................................................................... 62
Power management screen options............................................................................................................................. 63
POST behavior screen options...................................................................................................................................... 64
Manageability..................................................................................................................................................................... 65
Virtualization support screen options...........................................................................................................................65
Wireless screen options...................................................................................................................................................65
Maintenance screen......................................................................................................................................................... 65
System logs........................................................................................................................................................................ 66
Updating the BIOS............................................................................................................................................................ 66
Updating the BIOS in Windows................................................................................................................................66
Updating the BIOS in Linux and Ubuntu................................................................................................................ 66
Updating the BIOS using the USB drive in Windows..........................................................................................67
Updating the BIOS from the F12 One-Time boot menu.....................................................................................67
System and setup password...........................................................................................................................................68
Assigning a system setup password....................................................................................................................... 68
Deleting or changing an existing system setup password.................................................................................68
Clearing CMOS settings.................................................................................................................................................. 69
Clearing BIOS (System Setup) and System passwords.......................................................................................... 69
Chapter 5: Troubleshooting......................................................................................................... 70
Handling swollen Lithium-ion batteries........................................................................................................................ 70
Dell SupportAssist Pre-boot System Performance Check diagnostics.................................................................71
Running the SupportAssist Pre-Boot System Performance Check.................................................................71
Built-in self-test (BIST).................................................................................................................................................... 71
M-BIST............................................................................................................................................................................71
LCD Power rail test (L-BIST)................................................................................................................................... 72
LCD Built-in Self Test (BIST)................................................................................................................................... 72
System-diagnostic lights..................................................................................................................................................73
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