HP ProBook 450 G1 Maintenance And Service Manual page 8

5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 36
Component replacement procedures ................................................................................................................. 36
6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 52
Component replacement procedures ................................................................................................................. 52
7 New Windows 8.1 features ........................................................................................................................... 88
Navigating the Start screen ................................................................................................................................. 88
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Equipment guidelines ................................................................................... 35
Battery ............................................................................................................................................... 37
Service door ....................................................................................................................................... 38
Using the optional security screw ..................................................................................................... 39
Hard drive .......................................................................................................................................... 39
Optical drive ...................................................................................................................................... 42
Memory modules .............................................................................................................................. 44
WLAN/Bluetooth combo card ........................................................................................................... 46
WWAN module ................................................................................................................................... 48
Keyboard ........................................................................................................................................... 50
RTC battery - models without WWAN .............................................................................................. 53
Top cover ........................................................................................................................................... 54
Speaker assembly ............................................................................................................................. 59
Fingerprint reader assembly ............................................................................................................. 61
Power button board .......................................................................................................................... 62
Function board .................................................................................................................................. 64
Card reader board ............................................................................................................................. 65
USB/audio board ............................................................................................................................... 67
System board .................................................................................................................................... 68
Optical drive extension board ........................................................................................................... 71
Power cable ....................................................................................................................................... 72
Battery cable ..................................................................................................................................... 73
RTC battery - WWAN models ............................................................................................................ 74
Fan/heat sink assembly .................................................................................................................... 76
Processor ........................................................................................................................................... 79
Display assembly .............................................................................................................................. 81
Locating the Start button and the Start menu ................................................................................. 89
Shutting down the computer ............................................................................................................ 89
Displaying all apps ............................................................................................................................ 90
Closing apps ...................................................................................................................................... 90
Enhanced search feature .................................................................................................................. 90