HP ProBook 640 G1 Maintenance And Service Manual page 6

6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 79
Fan and heat sink assembly ................................................................................................................................ 79
Base enclosure ..................................................................................................................................................... 82
USB board ............................................................................................................................................................ 85
Power button board ............................................................................................................................................. 86
Fingerprint reader board ..................................................................................................................................... 87
Smart card reader ................................................................................................................................................ 88
System board ....................................................................................................................................................... 89
Speakers .............................................................................................................................................................. 95
Function button board ......................................................................................................................................... 96
Processor ............................................................................................................................................................. 98
TouchPad ........................................................................................................................................................... 100
Power connector cable ...................................................................................................................................... 101
RTC battery ........................................................................................................................................................ 103
Display assembly ............................................................................................................................................... 104
7 Computer Setup (BIOS), TPM, and HP Sure Start - Windows 10 ....................................................................... 109
Using Computer Setup ....................................................................................................................................... 109
TPM BIOS settings (select products only) ......................................................................................................... 113
Using HP Sure Start (select products only) ....................................................................................................... 113
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Battery ............................................................................................................................................... 56
Service cover ..................................................................................................................................... 57
Hard drive .......................................................................................................................................... 58
Modem module (select models only) ............................................................................................... 61
Primary memory module .................................................................................................................. 62
Expansion memory module .............................................................................................................. 64
WWAN module (select models only) ................................................................................................. 65
WLAN module .................................................................................................................................... 67
Optical drive ...................................................................................................................................... 69
Solid-state drive ................................................................................................................................ 70
Keyboard ........................................................................................................................................... 72
Starting Computer Setup ................................................................................................................ 109
Navigating and selecting in Computer Setup ................................................................................. 110
Restoring factory settings in Computer Setup ............................................................................... 110
Updating the BIOS ........................................................................................................................... 111
Determining the BIOS ................................................................................................... 111
Downloading a BIOS update ......................................................................................... 111
Changing the boot order using the f9 prompt ................................................................................ 112