Chapter 4: Working inside your computer....................................................................................34
Safety instructions............................................................................................................................................................34
Before working inside your computer.....................................................................................................................34
Safety precautions...................................................................................................................................................... 35
Electrostatic discharge—ESD protection............................................................................................................. 35
ESD Field Service kit ................................................................................................................................................. 36
Transporting sensitive components........................................................................................................................ 37
After working inside your computer........................................................................................................................37
BitLocker........................................................................................................................................................................37
Recommended tools......................................................................................................................................................... 37
Screw list.............................................................................................................................................................................38
Major components of Precision 5490.......................................................................................................................... 40
Chapter 5: Removing and installing Field Replaceable Units (FRUs)............................................ 43
Base cover.......................................................................................................................................................................... 43
Removing the base cover..........................................................................................................................................43
Installing the base cover............................................................................................................................................ 47
M.2 solid state drive......................................................................................................................................................... 49
Removing the M.2 2230 solid state drive..............................................................................................................49
Installing the M.2 2230 solid-state drive................................................................................................................51
Removing the M.2 2280 solid state drive............................................................................................................. 53
Installing the M.2 2280 solid state drive................................................................................................................54
Battery................................................................................................................................................................................. 55
Rechargeable Li-ion battery precautions.............................................................................................................. 55
Removing the battery................................................................................................................................................ 55
Installing the battery...................................................................................................................................................56
Processor fan..................................................................................................................................................................... 57
Removing the processor fan.....................................................................................................................................57
Installing the processor fan.......................................................................................................................................58
Graphics-card fan............................................................................................................................................................. 59
Removing the graphics-card fan............................................................................................................................. 59
Installing the graphics-card fan............................................................................................................................... 60
Heat sink.............................................................................................................................................................................. 61
Removing the heat sink for integrated graphics.................................................................................................. 61
Installing the heat sink for integrated graphics....................................................................................................62
Removing the heat sink for discrete graphics......................................................................................................63
Installing the heat sink for discrete graphics........................................................................................................64
Audio jack............................................................................................................................................................................65
Removing the audio jack............................................................................................................................................65
Installing the audio jack..............................................................................................................................................66
Speakers.............................................................................................................................................................................. 67
Removing the speaker................................................................................................................................................67
Installing the speaker..................................................................................................................................................69
Smart-card reader..............................................................................................................................................................71
Removing the smart-card reader............................................................................................................................. 71
Installing the smart-card reader...............................................................................................................................72
Display assembly................................................................................................................................................................ 73
Removing the display assembly................................................................................................................................73
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