HP EliteBook 840r G4 Maintenance And Service Manual page 8

5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 30
Component replacement procedures .................................................................................................................. 30
6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 46
Component replacement procedures .................................................................................................................. 46
7 Computer Setup (BIOS), TPM, and HP Sure Start ............................................................................................. 70
Using Computer Setup ......................................................................................................................................... 70
TPM BIOS settings (select products only) ........................................................................................................... 73
Using HP Sure Start (select products only) ......................................................................................................... 73
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Bottom cover ..................................................................................................................................... 30
Battery ............................................................................................................................................... 33
Hard drive .......................................................................................................................................... 34
M.2 solid-state drive ......................................................................................................................... 36
Memory modules ............................................................................................................................... 37
WLAN/Bluetooth combo card ............................................................................................................ 39
WWAN module ................................................................................................................................... 41
Keyboard ........................................................................................................................................... 43
RTC battery ........................................................................................................................................ 47
Internal base plate ............................................................................................................................ 48
Heat sink/fan assembly .................................................................................................................... 50
Fingerprint reader assembly ............................................................................................................. 52
Power button board .......................................................................................................................... 54
TouchPad ........................................................................................................................................... 55
NFC module ....................................................................................................................................... 57
Smart card reader board ................................................................................................................... 58
USB/VGA board .................................................................................................................................. 60
System board .................................................................................................................................... 61
Speaker assembly ............................................................................................................................. 64
Display assembly ............................................................................................................................... 65
Top cover ........................................................................................................................................... 69
Starting Computer Setup .................................................................................................................. 70
Using a USB keyboard or USB mouse to start Computer Setup (BIOS) .......................... 70
Navigating and selecting in Computer Setup ................................................................................... 70
Restoring factory settings in Computer Setup ................................................................................. 71
Updating the BIOS ............................................................................................................................. 71
Determining the BIOS version ......................................................................................... 71
Downloading a BIOS update ........................................................................................... 72
Changing the boot order using the f9 prompt .................................................................................. 73