Installing the coin-cell battery...................................................................................................................................31
Media-card reader (optional)......................................................................................................................................... 32
Removing the media-card reader............................................................................................................................ 32
Installing the media-card reader.............................................................................................................................. 33
Power supply unit..............................................................................................................................................................34
Removing the power supply unit............................................................................................................................. 34
Installing the power supply unit............................................................................................................................... 36
Antenna modules............................................................................................................................................................... 37
Removing the antenna modules............................................................................................................................... 37
Installing the antenna modules.................................................................................................................................38
Fan shroud.......................................................................................................................................................................... 39
Removing the fan shroud.......................................................................................................................................... 39
Installing the fan shroud............................................................................................................................................ 40
Processor fan and heat-sink assembly......................................................................................................................... 41
Removing the fan and heat-sink assembly............................................................................................................ 41
Installing the fan and heat-sink assembly..............................................................................................................42
Processor............................................................................................................................................................................ 43
Removing the processor............................................................................................................................................43
Installing the processor.............................................................................................................................................. 44
System board..................................................................................................................................................................... 45
Removing the system board..................................................................................................................................... 45
Installing the system board....................................................................................................................................... 48
Recommended tools..........................................................................................................................................................51
Screw list.............................................................................................................................................................................52
Major components of Vostro 3020 Small Desktop................................................................................................... 52
Chapter 3: Drivers and downloads............................................................................................... 55
Chapter 4: BIOS setup.................................................................................................................56
Entering BIOS setup program........................................................................................................................................ 56
Navigation keys................................................................................................................................................................. 56
One time boot menu.........................................................................................................................................................56
System setup options.......................................................................................................................................................57
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.................................................................................69
Clearing CMOS settings.................................................................................................................................................. 69
Clearing BIOS (System Setup) and System passwords.......................................................................................... 69
Chapter 5: Troubleshooting......................................................................................................... 70
Locate the Service Tag or Express Service Code of your Dell computer ..............................................70
SupportAssist diagnostics............................................................................................................................................... 70
Power-Supply Unit Built-in Self-Test ..........................................................................................................................70
System diagnostic lights.................................................................................................................................................. 70
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Contents