Dell Inspiron 24 5420 Owner's Manual page 5

Chapter 6: Removing and installing Field Replaceable Units (FRUs)............................................ 74
Heat sink (integrated graphics)..................................................................................................................................... 74
Removing the heat sink..............................................................................................................................................74
Installing the heat sink................................................................................................................................................75
Heat sink (discrete graphics)......................................................................................................................................... 76
Removing the heat sink..............................................................................................................................................76
Installing the heat sink................................................................................................................................................ 77
Media-card reader.............................................................................................................................................................78
Removing the media-card reader............................................................................................................................ 78
Installing the media-card reader.............................................................................................................................. 79
Power-button board with USB...................................................................................................................................... 80
Removing the power-button board with USB......................................................................................................80
Installing the power-button board with USB.........................................................................................................81
System board..................................................................................................................................................................... 83
Removing the system board..................................................................................................................................... 83
Installing the system board....................................................................................................................................... 86
Microphones....................................................................................................................................................................... 89
Removing the microphones...................................................................................................................................... 89
Installing the microphones........................................................................................................................................ 90
Antennas..............................................................................................................................................................................92
Removing the antennas............................................................................................................................................. 92
Installing the antennas............................................................................................................................................... 93
Display panel....................................................................................................................................................................... 94
Removing the display panel.......................................................................................................................................94
Installing the display panel.........................................................................................................................................96
Middle frame assembly.....................................................................................................................................................97
Removing the middle frame assembly.................................................................................................................... 97
Installing the middle frame assembly...................................................................................................................... 99
Chapter 7: Software................................................................................................................... 101
Operating system............................................................................................................................................................. 101
Drivers and downloads.................................................................................................................................................... 101
Chapter 8: BIOS setup............................................................................................................... 102
Entering BIOS setup program.......................................................................................................................................102
Navigation keys................................................................................................................................................................ 102
One time boot menu....................................................................................................................................................... 102
System setup options..................................................................................................................................................... 103
Updating the BIOS............................................................................................................................................................ 111
Updating the BIOS in Windows................................................................................................................................111
Updating the BIOS using the USB drive in Windows..........................................................................................111
Updating the BIOS in Linux and Ubuntu............................................................................................................... 112
Updating the BIOS from the One Time Boot menu............................................................................................112
System and setup password..........................................................................................................................................113
Assigning a system setup password...................................................................................................................... 113
Deleting or changing an existing system setup password................................................................................ 113
Clearing CMOS settings................................................................................................................................................. 114
Clearing BIOS (System Setup) and System passwords..........................................................................................114
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