Dell Latitude E5470, Owner'S Manual

Page: 5 / 63

Touchpad specifications.................................................................................................................................................. 39
Battery specifications...................................................................................................................................................... 39
AC Adapter specifications...............................................................................................................................................40
Physical specifications..................................................................................................................................................... 40
Environmental specifications...........................................................................................................................................41
Chapter 4: BIOS setup.................................................................................................................42
BIOS overview....................................................................................................................................................................42
Entering BIOS setup program........................................................................................................................................ 42
Navigation keys..................................................................................................................................................................42
One time boot menu......................................................................................................................................................... 43
Boot Sequence...................................................................................................................................................................43
Navigation keys..................................................................................................................................................................44
System setup options.......................................................................................................................................................44
System Setup overview............................................................................................................................................. 44
Accessing System Setup........................................................................................................................................... 44
General screen options.............................................................................................................................................. 44
System Configuration screen options.................................................................................................................... 45
Video screen options.................................................................................................................................................. 47
Security screen options..............................................................................................................................................47
Secure Boot screen options......................................................................................................................................48
Intel Software Guard Extensions screen options................................................................................................ 49
Performance screen options.....................................................................................................................................49
Power Management screen options.......................................................................................................................50
POST Behavior screen options.................................................................................................................................51
Virtualization support screen options.....................................................................................................................52
Wireless screen options............................................................................................................................................. 52
Maintenance screen options.....................................................................................................................................52
System Log screen options.......................................................................................................................................53
Updating the BIOS............................................................................................................................................................ 53
Updating the BIOS in Windows................................................................................................................................53
Updating the BIOS in Linux and Ubuntu................................................................................................................ 53
Updating the BIOS using the USB drive in Windows..........................................................................................54
Updating the BIOS from the F12 One-Time boot menu.....................................................................................54
System and setup password.......................................................................................................................................... 55
Assigning a system setup password....................................................................................................................... 55
Deleting or changing an existing system setup password.................................................................................55
Clearing BIOS (System Setup) and System passwords.......................................................................................... 56
Chapter 5: Troubleshooting.........................................................................................................57
Handling swollen Lithium-ion batteries........................................................................................................................ 57
Enhanced Pre-Boot System Assessment ePSA diagnostics.................................................................................. 58
Built-in self-test (BIST)................................................................................................................................................... 58
M-BIST...........................................................................................................................................................................58
LCD Power rail test (L-BIST)................................................................................................................................... 59
LCD Built-in Self Test (BIST)................................................................................................................................... 59
Device status lights.......................................................................................................................................................... 60
Battery status lights..........................................................................................................................................................61
Recovering the operating system.................................................................................................................................. 61
Contents 5