HP 14 C9K59UT#ABA, 4540s C6Z35UT#ABA, D8C11UT 14 D8C11UT#ABA 6

Plastic parts .......................................................................................................	36
Cables and connectors .....................................................................................	37
Drive handling ...................................................................................................	37
Grounding guidelines .........................................................................................................	38
Electrostatic discharge damage ........................................................................	38
Packaging and transporting guidelines .............................................	39
Workstation guidelines .....................................................................	39
Equipment guidelines .......................................................................	40
Component replacement procedures .................................................................................................	41
Service tag .........................................................................................................................	41
Battery ...............................................................................................................................	42
Using the optional security screw ......................................................................................	43
Bottom door .......................................................................................................................	44
SIM ....................................................................................................................................	45
Optical drive .......................................................................................................................	46
Hard drive ..........................................................................................................................	48
Memory modules ...............................................................................................................	50
WWAN module ..................................................................................................................	52
WLAN/Bluetooth combo card ............................................................................................	54
Keyboard ...........................................................................................................................	56
Heat shield .........................................................................................................................	59
Fan .....................................................................................................................................	61
Heat sink ............................................................................................................................	63
Processor ...........................................................................................................................	66
Top cover ...........................................................................................................................	67
Fingerprint reader board ....................................................................................................	75
Speaker assembly .............................................................................................................	76
Function board/Power button board assembly ..................................................................	79
Audio board .......................................................................................................................	81
USB connector assembly ..................................................................................................	82
Battery cable ......................................................................................................................	84
System board .....................................................................................................................	85
RTC battery .......................................................................................................................	88
Optical drive extension board (4540s models only) ...........................................................	90
Hard drive extension board (4540s models only) ..............................................................	92
Power cable .......................................................................................................................	94
Latch assembly ..................................................................................................................	95
Display assembly ...............................................................................................................	97
5 Computer Setup (BIOS) and Advanced System Diagnostics .................................................................	105
Using Computer Setup .....................................................................................................................	105