Drive handling ......................................................................................... 54
Grounding guidelines .............................................................................................. 55
Electrostatic discharge damage .................................................................. 55
Packaging and transporting guidelines ........................................ 56
Workstation guidelines .............................................................. 56
Equipment guidelines ................................................................. 57
Component replacement procedures ........................................................................................ 58
Service tag ............................................................................................................. 58
Computer feet ......................................................................................................... 59
Battery ................................................................................................................... 60
Display assembly (panel, bezel, webcam, microphone) ............................................... 61
SIM ....................................................................................................................... 65
Bottom door ........................................................................................................... 66
Optical drive .......................................................................................................... 67
Upgrade bay .......................................................................................................... 69
Hard drive ............................................................................................................. 71
RTC battery ............................................................................................................ 73
Memory modules .................................................................................................... 74
WWAN module ..................................................................................................... 76
WLAN module ........................................................................................................ 78
Bluetooth module .................................................................................................... 83
Modem module ....................................................................................................... 85
Fan ....................................................................................................................... 87
Heat sink ................................................................................................................ 89
Processor ............................................................................................................... 93
Keyboard ............................................................................................................... 95
Bottom cover .......................................................................................................... 97
Speaker assembly ................................................................................................. 101
RJ-11 jack cable .................................................................................................... 103
Function board ..................................................................................................... 105
USB board ........................................................................................................... 107
System board ....................................................................................................... 108
Display assembly and components (whole hinge-up, cable, antennas, hinges, enclosure) 113
5 Computer Setup (BIOS) and System Diagnostics ............................................................ 123
Using Computer Setup .......................................................................................................... 123
Starting Computer Setup ........................................................................................ 123
Navigating and selecting in Computer Setup ............................................................ 123
Restoring factory settings in Computer Setup ............................................................. 124
Updating the BIOS ................................................................................................ 125
Determining the BIOS version .................................................................. 125
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