HP EliteBook 845 Maintenance And Service Manual page 4

Electrostatic discharge information ................................................................................................................................................. 31
Generating static electricity...................................................................................................................................................... 31
Preventing electrostatic damage to equipment ................................................................................................................... 32
Personal grounding methods and equipment ...................................................................................................................... 32
Grounding the work area .......................................................................................................................................................... 33
Recommended materials and equipment ............................................................................................................................. 33
Cleaning your computer..................................................................................................................................................................... 34
Enabling HP Easy Clean (select products only) ..................................................................................................................... 34
Removing dirt and debris from your computer..................................................................................................................... 34
Cleaning your computer with a disinfectant .......................................................................................................................... 35
Caring for wood veneer (select products only) ..................................................................................................................... 36
Packaging and transporting guidelines........................................................................................................................................... 36
Accessing support information ......................................................................................................................................................... 36
5 Removal and replacement procedures for authorized service provider parts .............................................................................. 39
Component replacement procedures.............................................................................................................................................. 39
Preparation for disassembly .................................................................................................................................................... 39
Bottom cover .............................................................................................................................................................................. 39
Battery ......................................................................................................................................................................................... 41
WWAN module............................................................................................................................................................................ 42
Memory modules ....................................................................................................................................................................... 44
Solid-state drive ......................................................................................................................................................................... 46
WLAN module ............................................................................................................................................................................. 47
Speakers ...................................................................................................................................................................................... 49
Connector board cable .............................................................................................................................................................. 50
Audio jack cable.......................................................................................................................................................................... 51
Connector board......................................................................................................................................................................... 52
Fan ................................................................................................................................................................................................ 54
Display assembly ....................................................................................................................................................................... 55
RTC battery.................................................................................................................................................................................. 65
NFC module cable ...................................................................................................................................................................... 66
NFC module antenna ................................................................................................................................................................. 67
NFC module................................................................................................................................................................................. 68
Touchpad cable........................................................................................................................................................................... 69
Touchpad ..................................................................................................................................................................................... 70
Fingerprint reader ...................................................................................................................................................................... 71
Fingerprint reader cable............................................................................................................................................................ 72
Card reader cable ....................................................................................................................................................................... 73
Card reader.................................................................................................................................................................................. 74
System board.............................................................................................................................................................................. 75
Heat sink...................................................................................................................................................................................... 78
Top cover/keyboard ................................................................................................................................................................... 79
6 Computer Setup (BIOS), TPM, and HP Sure Start................................................................................................................................ 81
Using Computer Setup ....................................................................................................................................................................... 81
Navigating and selecting in Computer Setup ....................................................................................................................... 81
Restoring factory settings in Computer Setup ...................................................................................................................... 82
Updating the BIOS...................................................................................................................................................................... 82
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