HP EliteBook 840 G6 Maintenance And Service Manual page 8

Packaging and transporting guidelines .............................................................................................................. 36
5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 37
Component replacement procedures .................................................................................................................. 37
6 Removal and replacement procedures for authorized service provider parts .................................................... 48
Component replacement procedures .................................................................................................................. 48
7 Interpreting system validation diagnostic front panel LEDs and audible codes ................................................. 81
8 Computer Setup (BIOS), TPM, and HP Sure Start ............................................................................................. 83
Using Computer Setup ......................................................................................................................................... 83
viii
Preparation for disassembly ............................................................................................................. 37
Bottom cover ..................................................................................................................................... 37
Solid-state drive (SSD) ...................................................................................................................... 39
Memory modules ............................................................................................................................... 40
WLAN/Bluetooth combo card ............................................................................................................ 41
WWAN module ................................................................................................................................... 43
Keyboard ........................................................................................................................................... 45
Battery ............................................................................................................................................... 49
Heat sink assembly ........................................................................................................................... 51
RTC battery ........................................................................................................................................ 54
USB board .......................................................................................................................................... 55
RJ-45 board with bracket .................................................................................................................. 56
Power button board .......................................................................................................................... 57
Speaker assembly ............................................................................................................................. 58
Touchpad ........................................................................................................................................... 59
Touchpad button board ..................................................................................................................... 61
NFC module ....................................................................................................................................... 62
Smart card reader .............................................................................................................................. 63
Fan ..................................................................................................................................................... 64
System board .................................................................................................................................... 66
Fingerprint reader assembly ............................................................................................................. 69
Display assembly ............................................................................................................................... 70
Top cover ........................................................................................................................................... 80
Starting Computer Setup .................................................................................................................. 83
Navigating and selecting in Computer Setup ................................................................................... 83
Restoring factory settings in Computer Setup ................................................................................. 83
Updating the BIOS ............................................................................................................................. 84
Determining the BIOS version ......................................................................................... 84