HP C2N25UA, D1E81UA 6

Packaging and transporting guidelines	............................................. 29
Component replacement procedures .................................................................................................	31
Service tag and PCID label ................................................................................................	31
Service tag ........................................................................................................	31
PCID label .........................................................................................................	32
Computer feet ....................................................................................................................	33
Battery ...............................................................................................................................	34
Display subcomponents (bezel, webcam, panel) ..............................................................	35
WLAN module ....................................................................................................................	42
Memory module .................................................................................................................	45
Hard drive ..........................................................................................................................	47
RTC battery .......................................................................................................................	50
Optical drive .......................................................................................................................	51
Keyboard ...........................................................................................................................	53
Top cover ...........................................................................................................................	57
Power button board ...........................................................................................................	61
TouchPad button board .....................................................................................................	63
Speakers ............................................................................................................................	65
USB board .........................................................................................................................	67
Power connector cable ......................................................................................................	69
Display assembly ...............................................................................................................	71
System board .....................................................................................................................	81
Optical drive cable .............................................................................................................	85
Fan/heat sink assembly .....................................................................................................	87
Processor ...........................................................................................................................	93
5 Using Setup Utility (BIOS) and System Diagnostics .................................................................................	96
Starting Setup Utility (BIOS) ...............................................................................................................	96
Updating the BIOS .............................................................................................................................	96
Determining the BIOS version ...........................................................................................	96
Downloading a BIOS update .............................................................................................	97
Using System Diagnostics ..................................................................................................................	98
6 Specifications ................................................................................................................................................	99
Computer specifications .....................................................................................................................	99
39.6-cm(15.6-in), HD display specifications ....................................................................................	100
Hard drive specifications ..................................................................................................................	101
7 Backing up, restoring, and recovering .....................................................................................................	102
Creating recovery media and backups .............................................................................................	103