Dell Precision 3540 Service Manual page 5

Display (eDP) cable.........................................................................................................................................................109
Removing display cable............................................................................................................................................ 109
Installing display cable............................................................................................................................................... 110
Display back cover assembly.......................................................................................................................................... 111
Replacing the display back cover............................................................................................................................ 111
Palmrest assembly............................................................................................................................................................112
Replacing the palmrest and keyboard assembly................................................................................................. 112
Chapter 5: Drivers and downloads.............................................................................................. 115
Chapter 6: BIOS setup................................................................................................................116
Boot menu.......................................................................................................................................................................... 116
BIOS overview...................................................................................................................................................................116
Entering BIOS setup program........................................................................................................................................117
Navigation keys................................................................................................................................................................. 117
One time boot menu........................................................................................................................................................ 117
System setup options...................................................................................................................................................... 117
General options........................................................................................................................................................... 118
System information.................................................................................................................................................... 118
Video.............................................................................................................................................................................. 119
Security......................................................................................................................................................................... 119
Secure boot.................................................................................................................................................................120
Intel Software Guard Extensions............................................................................................................................ 121
Performance................................................................................................................................................................ 121
Power management.................................................................................................................................................. 122
POST behavior............................................................................................................................................................123
Virtualization support................................................................................................................................................123
Wireless........................................................................................................................................................................ 124
Maintenance screen.................................................................................................................................................. 124
System logs................................................................................................................................................................. 124
SupportAssist System Resolution..........................................................................................................................125
Updating the BIOS.......................................................................................................................................................... 125
Updating the BIOS in Windows.............................................................................................................................. 125
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 125
Updating the BIOS using the USB drive in Windows........................................................................................ 126
Updating the BIOS from the F12 One-Time boot menu................................................................................... 126
System and setup password......................................................................................................................................... 127
Assigning a system setup password...................................................................................................................... 127
Deleting or changing an existing system setup password............................................................................... 128
Clearing CMOS settings.................................................................................................................................................128
Clearing BIOS (System Setup) and System passwords.........................................................................................128
Chapter 7: Troubleshooting........................................................................................................129
Handling swollen Lithium-ion batteries.......................................................................................................................129
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 130
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 130
Built-in self-test (BIST)..................................................................................................................................................130
M-BIST......................................................................................................................................................................... 130
LCD Power rail test (L-BIST).................................................................................................................................. 131
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