HP 15 Notebook PC HP 15 TouchSmart Notebook PC Compaq 15 Notebook PC Compaq 15 TouchSmart Notebook PC HP 250 G2 Notebook PC HP 255 G2 Notebook PC Maintenance and Service Guide

Packaging and transporting guidelines ....................................................... 47
Component replacement procedures ................................................................................................................. 49
Battery ............................................................................................................................................... 49
Display subcomponents (bezel, webcam, panel) ............................................................................. 50
Service door ....................................................................................................................................... 56
Optical drive ...................................................................................................................................... 57
WLAN module .................................................................................................................................... 59
Memory module ................................................................................................................................ 61
Top cover/keyboard .......................................................................................................................... 62
Power button board .......................................................................................................................... 69
TouchPad button board .................................................................................................................... 70
Display assembly .............................................................................................................................. 71
USB board .......................................................................................................................................... 80
Hard drive .......................................................................................................................................... 81
Optical drive connector ..................................................................................................................... 84
System board .................................................................................................................................... 85
Fan/heat sink assembly .................................................................................................................... 90
Processor ........................................................................................................................................... 97
Power connector cable ...................................................................................................................... 99
Card reader board ........................................................................................................................... 101
Speakers .......................................................................................................................................... 103
RTC battery ...................................................................................................................................... 104
Hard drive connector ....................................................................................................................... 106
Weight ............................................................................................................................................. 108
5 Using Setup Utility (BIOS) and HP PC Hardware Diagnostics (UEFI) in Windows 8 ............................................. 109
Starting Setup Utility (BIOS) .............................................................................................................................. 109
Updating the BIOS .............................................................................................................................................. 109
Determining the BIOS version ......................................................................................................... 109
Downloading a BIOS update ........................................................................................................... 110
Using HP PC Hardware Diagnostics (UEFI) ........................................................................................................ 111
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device ............................................... 111
6 Using Setup Utility (BIOS) and System Diagnostics in Windows 7 ................................................................... 113
Starting Setup Utility (BIOS) .............................................................................................................................. 113
Updating the BIOS .............................................................................................................................................. 113
Determining the BIOS version ......................................................................................................... 113
Downloading a BIOS update ........................................................................................................... 114
Using System Diagnostics ................................................................................................................................. 115
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