BitLocker....................................................................................................................................................................... 30
Recommended tools.........................................................................................................................................................30
Screw list..............................................................................................................................................................................31
Major components of Inspiron 14 Plus 7440...............................................................................................................32
Chapter 5: Removing and installing Customer Replaceable Units (CRUs).................................... 34
Base cover.......................................................................................................................................................................... 34
Removing the base cover..........................................................................................................................................34
Installing the base cover............................................................................................................................................ 36
Solid-state drive................................................................................................................................................................ 38
Removing the M.2 2230 solid-state drive............................................................................................................. 38
Installing the M.2 2230 solid-state drive............................................................................................................... 39
Removing the M.2 2280 solid-state drive.............................................................................................................40
Installing the M.2 2280 solid-state drive................................................................................................................41
Fan........................................................................................................................................................................................ 42
Removing the fan........................................................................................................................................................ 42
Installing the fan.......................................................................................................................................................... 43
Wireless card...................................................................................................................................................................... 44
Removing the wireless card......................................................................................................................................44
Installing the wireless card........................................................................................................................................ 45
Chapter 6: Removing and installing Field Replaceable Units (FRUs)............................................ 48
Battery................................................................................................................................................................................. 48
Rechargeable Li-ion battery precautions...............................................................................................................48
Removing the battery.................................................................................................................................................48
Installing the battery...................................................................................................................................................49
Battery cable......................................................................................................................................................................50
Removing the battery cable..................................................................................................................................... 50
Installing the battery cable.........................................................................................................................................51
Display assembly................................................................................................................................................................52
Removing the display assembly............................................................................................................................... 52
Installing the display assembly..................................................................................................................................54
I/O board.............................................................................................................................................................................56
Removing the I/O board............................................................................................................................................56
Installing the I/O board.............................................................................................................................................. 57
Speaker and antenna assembly......................................................................................................................................58
Removing the speaker and antenna assembly..................................................................................................... 58
Installing the speaker and antenna assembly....................................................................................................... 59
Heat sink.............................................................................................................................................................................. 61
Removing the heat sink .............................................................................................................................................61
Installing the heat sink................................................................................................................................................62
Power-adapter port..........................................................................................................................................................63
Removing the power-adapter port......................................................................................................................... 63
Installing the power-adapter port............................................................................................................................64
System board..................................................................................................................................................................... 65
Removing the system board..................................................................................................................................... 65
Installing the system board....................................................................................................................................... 68
USB board............................................................................................................................................................................71
Removing the USB board........................................................................................................................................... 71
4
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