HP ProBook 450 G2 Notebook PC HP ProBook 455 G2 Notebook PC Maintenance and Service Guide

Battery ............................................................................................................................................... 36
Service door ....................................................................................................................................... 37
Hard drive .......................................................................................................................................... 39
Memory modules ............................................................................................................................... 41
Optical drive ....................................................................................................................................... 43
WLAN/Bluetooth combo card ............................................................................................................ 45
WWAN module ................................................................................................................................... 47
Keyboard ........................................................................................................................................... 49
6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 53
Component replacement procedures .................................................................................................................. 53
Display subcomponents (bezel, webcam, panel) ............................................................................. 54
Top cover ........................................................................................................................................... 58
RTC battery, HP 455 models ............................................................................................................. 61
Speaker assembly ............................................................................................................................. 62
Fingerprint reader assembly ............................................................................................................. 64
Power button board .......................................................................................................................... 65
Function board .................................................................................................................................. 67
Card reader board .............................................................................................................................. 69
USB/audio board ................................................................................................................................ 71
Touchpad button board ..................................................................................................................... 73
Fan ..................................................................................................................................................... 75
Battery connector cable .................................................................................................................... 77
System board .................................................................................................................................... 78
Optical drive extension board ........................................................................................................... 82
RTC battery, HP 450 models ............................................................................................................. 83
Heat sink assembly ........................................................................................................................... 85
Display assembly ............................................................................................................................... 88
Power connector and cable ............................................................................................................... 95
7 Computer Setup (BIOS) and MultiBoot in Windows 7 ....................................................................................... 96
Using Computer Setup ......................................................................................................................................... 96
Starting Computer Setup .................................................................................................................. 96
Navigating and selecting in Computer Setup ................................................................................... 96
Restoring factory settings in Computer Setup ................................................................................. 97
Updating the BIOS ............................................................................................................................. 97
Determining the BIOS version ......................................................................................... 97
Downloading a BIOS update ........................................................................................... 98
Using MultiBoot ................................................................................................................................................... 98
About the boot device order ............................................................................................................. 98
Choosing MultiBoot preferences ....................................................................................................... 99
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