HP 645 G3, 655 G3 Maintenance and Service Guide
HP 645 G3 Notebook PC
HP 655 G3 Notebook PC
Maintenance and Service Guide
IMPORTANT! This document is intended for
HP authorized service providers only.
© Copyright 2016 HP Development Company,
L.P.
AMD is a trademark of Advanced Micro Devices,
Inc. Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel is a trademark of Intel Corporation in the
U.S. and other countries. Windows is either a
registered trademark or trademark of
Microsoft Corporation in the United States
and/or other countries.
Product notice
This guide describes features that are common
to most models. Some features may not be
available on your computer.
Not all features are available in all editions of
Windows. This computer may require upgraded
and/or separately purchased hardware, drivers
and/or software to take full advantage of
Windows functionality. Windows 10 is
automatically updated, which is always
enabled. ISP fees may apply and additional
requirements may apply over time for updates.
See http://www.microsoft.com.
The information contained herein is subject to
change without notice. The only warranties for
HP products and services are set forth in the
express warranty statements accompanying
such products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable for
technical or editorial errors or omissions
contained herein.
First Edition: December 2016
Document Part Number: 902331-001
Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the
device directly on your lap or obstruct the device air vents. Use the device only on a hard, at surface. Do not
allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or
clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as
pillows or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible
surface temperature limits dened by the International Standard for Safety of Information Technology
Equipment (IEC 60950-1).
iii
iv Safety warning notice
Table of contents
1 Product description ....................................................................................................................................... 1
2 External component identication .................................................................................................................. 6
Right ....................................................................................................................................................................... 6
Left ......................................................................................................................................................................... 8
Display .................................................................................................................................................................... 9
Top ........................................................................................................................................................................ 10
TouchPad ........................................................................................................................................... 10
Lights ................................................................................................................................................. 11
Buttons, speakers, and ngerprint reader ........................................................................................ 12
Keys ................................................................................................................................................... 14
Using the hot keys ............................................................................................................................. 16
Bottom ................................................................................................................................................................. 17
Front ..................................................................................................................................................................... 18
Rear ...................................................................................................................................................................... 19
Locating system information .............................................................................................................................. 19
3 Illustrated parts catalog .............................................................................................................................. 21
Computer major components .............................................................................................................................. 21
Display assembly subcomponents ...................................................................................................................... 26
Mass storage devices ........................................................................................................................................... 28
Miscellaneous parts ............................................................................................................................................. 29
4 Removal and replacement procedures preliminary requirements .................................................................... 32
Tools required ...................................................................................................................................................... 32
Service considerations ......................................................................................................................................... 32
Plastic parts ....................................................................................................................................... 32
Cables and connectors ...................................................................................................................... 33
Drive handling ................................................................................................................................... 33
Grounding guidelines ........................................................................................................................................... 34
Electrostatic discharge damage ........................................................................................................ 34
Packaging and transporting guidelines .......................................................................... 35
Workstation guidelines ................................................................................................... 35
Equipment guidelines ..................................................................................................... 36
v
5 Removal and replacement procedures for Authorized Service Provider parts ................................................... 37
Component replacement procedures .................................................................................................................. 37
Service door ....................................................................................................................................... 37
Battery ............................................................................................................................................... 38
Hard drive .......................................................................................................................................... 39
Solid-state drive (select products only) ............................................................................................ 41
WWAN module (select products only) ............................................................................................... 42
WLAN module .................................................................................................................................... 43
Optical drive ....................................................................................................................................... 45
Keyboard ........................................................................................................................................... 47
Memory .............................................................................................................................................. 50
Hinge cover ........................................................................................................................................ 53
Base enclosure .................................................................................................................................. 55
System board .................................................................................................................................... 57
Fan and heat sink assembly .............................................................................................................. 59
Optical drive board ............................................................................................................................ 62
Top cover and TouchPad .................................................................................................................... 63
RTC battery ........................................................................................................................................ 66
Speaker .............................................................................................................................................. 68
Power button board .......................................................................................................................... 69
Fingerprint reader (select products only) ......................................................................................... 70
Smart card reader .............................................................................................................................. 72
Near Field Communication module ................................................................................................... 74
Audio board ....................................................................................................................................... 76
Serial board ....................................................................................................................................... 78
Display assembly ................................................................................................................................................. 80
6 Computer Setup (BIOS), TPM, and HP Sure Start ............................................................................................. 86
Using Computer Setup ......................................................................................................................................... 86
Starting Computer Setup .................................................................................................................. 86
Using a USB keyboard or USB mouse to start Computer Setup (BIOS) .......................... 86
Navigating and selecting in Computer Setup ................................................................................... 86
Restoring factory settings in Computer Setup ................................................................................. 87
Updating the BIOS ............................................................................................................................. 87
Determining the BIOS version ......................................................................................... 87
Downloading a BIOS update ........................................................................................... 88
Changing the boot order using the f9 prompt .................................................................................. 89
TPM BIOS settings (select products only) ........................................................................................................... 89
Using HP Sure Start (select products only) ......................................................................................................... 89
vi
7 Using Computer Setup (BIOS), TPM, and HP Sure Start in Windows 7 ................................................................. 90
Using Computer Setup ......................................................................................................................................... 90
Starting Computer Setup .................................................................................................................. 90
Navigating and selecting in Computer Setup ................................................................................... 90
Restoring factory settings in Computer Setup ................................................................................. 91
Updating the BIOS ............................................................................................................................. 92
Determining the BIOS version ......................................................................................... 92
Downloading a BIOS update ........................................................................................... 92
Changing the boot order using the f9 prompt .................................................................................. 93
TPM BIOS settings (select products only) ........................................................................................................... 93
Using HP Sure Start (select products only) ......................................................................................................... 94
8 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 95
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 95
9 Backing up, restoring, and recovering ........................................................................................................... 97
Creating recovery media and backups ................................................................................................................ 97
Creating HP Recovery media (select products only) ......................................................................... 97
Using Windows tools ........................................................................................................................................... 98
Restore and recovery ........................................................................................................................................... 99
Recovering using HP Recovery Manager ........................................................................................... 99
What you need to know before you get started ............................................................. 99
Using the HP Recovery partition (select products only) .............................................. 100
Using HP Recovery media to recover ............................................................................ 100
Changing the computer boot order .............................................................................. 101
Removing the HP Recovery partition (select products only) ....................................... 102
10 Backup, restoring, and recovering ............................................................................................................. 103
Creating recovery media and backups .............................................................................................................. 103
Guidelines ........................................................................................................................................ 103
Creating recovery media with HP Recovery Disc Creator ............................................................... 103
Creating recovery media ............................................................................................... 104
Backing up your information .......................................................................................................... 104
Performing a system recovery .......................................................................................................................... 105
Using the Windows recovery tools .................................................................................................. 105
Using f11 recovery tools (select products only) ............................................................................. 106
Using Windows 7 operating system media ..................................................................................... 106
11 Specications .......................................................................................................................................... 108
Computer specications .................................................................................................................................... 108
vii
35.56 cm (14-in) display specications ............................................................................................................ 110
39.62 cm (15.6-in) display specications ......................................................................................................... 113
Hard drive specications ................................................................................................................................... 114
Solid-state drive specications ......................................................................................................................... 117
12 Power cord set requirements .................................................................................................................... 120
Requirements for all countries .......................................................................................................................... 120
Requirements for specic countries and regions ............................................................................................. 120
13 Statement of memory volatility ................................................................................................................ 122
Nonvolatile memory usage ............................................................................................................................... 124
Questions and answers ..................................................................................................................................... 126
Using HP Sure Start (select models only) .......................................................................................................... 127
14 Recycling ................................................................................................................................................ 128
Index ........................................................................................................................................................... 129
viii
1 Product description
Category Description
Product Name HP 645 G3 Notebook PC
Processors HP 645 and HP 655 products:
Chipset AMD Bristol Ridge—The chipset is integrated with the processor.
Graphics AMD Integrated UMA graphics
HP 655 G3 Notebook PC
AMD Bristol Ridge APU BGA ULV
A8-9600B with Radeon R5 Graphics
AMD Carizzo DDR4 APU BGA ULV
A6-8530B with Radeon R5 Graphics
A10-8730B with Radeon R5 Graphics
AMD Carrizo—The chipset is integrated with the processor.
Supporting 2 display port and 1 D-sub through docking
Supports 3 independent displays when on the Quest 2 dock
Panel Anti-glare panels for 14” products:
14.0" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768)
14.0" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with camera
14.0" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with WWAN
14.0" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with camera and
with WWAN
14.0" FHD AG SVA 60% CG 300 nits eDP 1.2 + PSR slim (1920x1080)
14.0" FHD AG SVA 60% CG 300 nits eDP 1.2 + PSR slim (1920x1080) with
camera
14.0" FHD AG SVA 60% CG 300 nits eDP 1.2 + PSR slim (1920x1080) with
WWAN
14.0" FHD AG SVA 60% CG 300 nits eDP 1.2 + PSR slim (1920x1080) with
camera and WWAN
14.0" FHD Slim eDP SVA 60% 300 nits (1920 x 1080) Touch with camera and
with WWAN
Chemically Strengthened Soda Lime Glass, GF2-MM - Air-Gap Bonded
Anti-glare panels for 15" products with LED backlight:
15.6" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768)
S15.6" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with camera
15.6" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with WWAN
15.6" HD AG SVA 45% CG 220 nits eDP 1.2 Slim (1366x768) with camera and
with WWAN
1
Category Description
15.6" FHD AG SVA 60% CG 300 nits eDP 1.2 + slim (1920x1080)
15.6" FHD AG SVA 60% CG 300 nits eDP 1.2 + slim (1920x1080) with camera
15.6" FHD AG SVA 60% CG 300 nits eDP 1.2 + slim (1920x1080) with WWAN
15.6" FHD AG SVA 60% CG 300 nits eDP 1.2 + slim (1920x1080) with camera
and WWAN
14.0" FHD Slim eDP SVA 60% 300 nits (1920 x 1080) Touch with camera and
with WWAN
Chemically Strengthened Soda Lime Glass, GF2-MM - Air-Gap Bonded
Memory DDR4 PC4 SODIMMS - System supports run rate at 1866—Supports Dual
Channel Memory up to 16 GB.
4096 MB Total System Memory (4096 MB x 1)
8192 MB Total System Memory (4096 MB x 2)
8192 MB Total System Memory (8192 MB x 1)
12288 MB Total System Memory (8192 MB + 4096 MB)
16384 MB Total System Memory (8192 MB x 2)
Hard drive Supports SATA3, 7mm, 2.5" HDDs:
500GB 7200 RPM
500GB 7200 RPM self-encrypting drive (Opal 2)
500GB 7200 RPM (FIPS-140-2)
1TB 5400 RPM
Solid-state drive M.2 (2280) Solid State Drive
128GB M2 SATA-3 SS Value
256GB PCIe Value SSD
256GB-PCIe NVMe SSD TLC
256GB-SATA TLC (Opal 2)
360GB PCIe Gen3x4 SS TLC (Intel)
512GB PCIe Value SSD
512GB-PCIe NVMe TLC
512GB SATA SS TLC (FIPS)
512GB PCIe Gen3x4 NVMe SS MLC
Optical drive (select products only) SATA 9.0mm optical drives:
DVD-ROM (defeatured combo)
DVD+/-RW SuperMulti DL
Blu-ray ROM DVD+/-RW SATA
Supports "No Optical weight saver" option
Audio and video Microphone (Dual Array) only for products without a webcam
Microphone (Dual Array) only for products with a webcam
Camera (720p)
2 Chapter 1 Product description
Category Description
Supports “no camera” option
Stereo Speakers (2)
Serial port RS-232 /Serial Port
Supports "no serial port" option”
Ethernet Realtek RTL8111HSH Gigabit Ethernet NIC with DASH Support
The following support HBMA (via UEFI PXE boot and Windows OS):
embedded NIC, Quest, HP3005, Ace Plus, Bert, and Ernie
The following dongles only support S3 wake on LAN: Ace Plus
S3/S4/S5 wake on LAN
15” models only:
Realtek RTL8111HSH Gigabit Ethernet
The following dongles only support S3 wake on LAN (via HBMA PXE and
Windows OS): Scooby, Ace, Bert, Speedy, and Hotdog
Wireless LAN WPAN Bluetooth:
BT 4.0 only supported via Realtek Sanji2
BT 4.2 only supported via Intel Sandy Peak non-vPro and Intel Stone Peak 2
non-vPro
WLAN:
WLAN options via Minicard:
Intel 802.11 ac 1x1 + BT 4.2 Combo (Sandy Peak 1 non-vPro)
ntel 802.11 ac 2x2 WiFi + BT 4.2 Combo (Stone Peak 2 non-vPro)
Realtek RTL8723BE-VB 802.11b/g/n 1x1 Wi-Fi + BT4.0 Combo (Sanji2)
WLAN Antennas (2) (congured at top of panel on all units)
Bluetooth Disabled IOPT
Support "No WLAN/No BT" option
Support for Miracast
Support for HP Sure Connect
NFC (select products only)
Integrated NFC Galapagos NXP NPC100 I2C NCI 10mmx25mm module
NFC Antenna (congured on NFC SKUs only)
NFC Cable
Supports "No NFC" option
Wireless WAN (select products only) SIM Module (3FF/micro SIM): (user accessible on side of unit)
WWAN options via connector:
Foxconn HP lt4120 LTE/EVDO/HSPA+ w/GPS M.2 (Amstel)
Huawei HP lt4132, LTE/HSPA+ w/GPS M.2 (Macan)
Fibocom HP hs3210 WW HSPA+ w/o GPS (Wrangler 2)
3
Category Description
WWAN Antennas (2) (world wide 5 band, congured at top of panel on all
units)
Supports "No WWAN" option
Supports WWAN After Market Option (for Europe, Middle East, and Africa
only)
External media cards SD Media Reader slot supports SD, SDHC, and SDXC.
Ports VGA (Dsub 15 pin) supporting 1920 x 1200 external resolution @ 60Hz
Hot Plug / Unplug and auto detect
DisplayPort 1.2
(1) USB Type C Charging Port
(2) USB 3.0 Port (1 Charging)
RJ-45 / Ethernet
Docking connector
Headphone / Microphone (Combo jack)
AC Port (4.5mm)
Docking Quest 2 dock support
Keyboard/pointing devices HP Advanced Keyboard
Touchpad, Spill-resistant with drain
Touchpad, Spill-resistant with drain, DuraKeys and backlit
Dual Point, Spill-resistant with drain, DuraKeys and backlit
Power requirements Battery:
3-cell HP Long Life Prismatic 48 WHr ( 4.21 Ahr ) Battery
AC adapter:
45 Watt Smart nPFC 3 pin RC 4.5mm connector - non slim
45 Watt Smart nPFC 3 pin RC 4.5mm connector - non slim 2 prong
65 Watt Smart nPFC 3 pin RC 4.5mm connector
65 Watt Smart nPFC EM 4.5mm connector
Power Cord (localized):
2-wire plug - 1m
3-wire plug - 1.8m
3-wire plug - 1m
Security Supports Security Lock
TPM 2.0 (Inneon; soldered down)
Fingerprint Reader (select products only)
Integrated Smart Card Reader (Active)
Preboot Authentication (Password, Smart Card)
Operating system Operating System Version:
4 Chapter 1 Product description
Category Description
Windows 10: Redstone 1
Preinstalled:
●
Win 7 Basic 64 CPPP
●
Win 7 Pro 64
●
Win 10 Home 64
●
Win 10 Home 64 Single Language
●
Win 10 Home 64 CPPP
●
Win 10 Home 64 High-end
●
Win 10 Home 64 High-end Single Language
●
Win 10 Pro 64
●
Win 10 Pro 64 Standard Shape the Future
●
Win 10 Pro 64 High-End Shape the Future
●
Win 10 Pro 64 Downgrade Win 7 64
●
Win 10 Pro Downgrade to Win 7 MS Volume License
●
Win 10 Pro 64 Downgrade Win 7 64 StF MSNA Standard
●
Win 10 Pro 64 Downgrade Win 7 64 StF MSNA High End
●
FreeDOS 2.0
Serviceability End user replaceable parts:
AC adapter
5
2 External component identication
Right
Component Description
(1) Dual-Mode DisplayPort Connects an optional digital display device, such as a high-
performance monitor or projector.
(2) USB 3.x charging port When the computer is on, connects and charges a USB device,
such as a cell phone, camera, activity tracker, or smartwatch,
and provides high-speed data transfer.
(3) Micro SIM card slot (select products only) Supports a wireless micro subscriber identity module (micro
SIM) card.
(4) Audio-out (headphone)/Audio-in (microphone)
combo jack
Connects optional powered stereo speakers, headphones,
earbuds, a headset, or a television audio cable. Also connects an
optional headset microphone. This jack does not support
optional microphone-only devices.
WARNING! To reduce the risk of personal injury, adjust the
volume before putting on headphones, earbuds, or a headset.
For additional safety information, refer to the Regulatory,
Safety, and Environmental Notices.
To access this guide:
1. Type support in the taskbar search box, and then select
the HP Support Assistant app.
‒ or –
Click the question mark icon in the taskbar.
2. Select My PC, select the Specications tab, and then
select User Guides.
NOTE: When a device is connected to the jack, the computer
speakers are disabled.
6 Chapter 2 External component identication
Component Description
(5) USB Type-C charging port When the computer is on, connects and charges a USB device
that has a Type-C connector, such as a cell phone, camera,
activity tracker, or smartwatch, and provides data transfer.
(6) Memory card reader Reads optional memory cards that store, manage, share, or
access information.
To insert a card:
1. Hold the card label-side up, with the connectors facing the
computer.
2. Insert the card into the memory card reader, and then
press in on the card until it is rmly seated.
To remove a card:
▲ Press in on the card, and then remove it from the memory
card reader.
(7) USB 3.x port Connects a USB device, such as a cell phone, camera, activity
tracker, or smartwatch, and provides data transfer.
(8) RJ-45 (network) jack/status lights Connects a network cable.
●
Green (right): The network is connected.
●
Amber (left): Activity is occurring on the network.
(9) Docking port Connects an optional docking device.
(10) Power connector Connects an AC adapter.
Right 7
Left
Component Description
(1) Security cable slot Attaches an optional security cable to the computer.
NOTE: The security cable is designed to act as a deterrent, but
it may not prevent the computer from being mishandled or
stolen.
(2) Vent Enables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal for
the internal fan to cycle on and o during routine operation.
(3) Optical drive (select products only) Depending on your computer model, reads an optical disc or
reads and writes to an optical disc.
(4) Optical drive light (select products only) On: The optical drive is in use.
O: The optical drive is not in use.
(5) Optical drive eject button (select products only) Releases the optical drive disc tray.
(6) Smart card reader (depending on the
conguration)
Supports optional smart cards.
8 Chapter 2 External component identication
Display
Component Description
(1) WLAN antennas* Send and receive wireless signals to communicate with wireless local
area networks (WLANs).
(2) WWAN antennas* Send and receive wireless signals to communicate with wireless wide
area networks (WWANs).
(3) Internal microphones Record sound.
(4) Webcam light (select products only) On: The webcam is in use.
(5) Webcam (select products only) Records video and captures photographs. Some models allow you to
video conference and chat online using streaming video.
To use the webcam:
▲ Type camera in the taskbar search box, and then select
Camera.
(6) Near Field Communication (NFC) tapping area*
(select products only)
*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately around the
antennas free from obstructions.
For wireless regulatory notices, see the section of the Regulatory, Safety, and Environmental Notices that applies to your country or
region.
To access this guide:
1. Type support in the taskbar search box, and then select the HP Support Assistant app.
Tap another NFC-enabled device to the NFC tapping area to transfer
les.
‒ or –
Click the question mark icon in the taskbar.
Display 9
Top
TouchPad
Component Description
2. Select My PC, select the Specications tab, and then select User Guides.
Component Description
(1) Pointing stick (select products only) Moves the pointer and selects or activates items on the screen.
(2) Left pointing stick button (select products only) Functions like the left button on an external mouse.
(3) TouchPad light
(4) TouchPad zone Reads your nger gestures to move the pointer or activate
(5) Left TouchPad button Functions like the left button on an external mouse.
(6) Right pointing stick button (select products
only)
(7) Right TouchPad button Functions like the right button on an external mouse.
10 Chapter 2 External component identication
●
On: The TouchPad is o.
●
O: The TouchPad is on.
items on the screen.
Functions like the right button on an external mouse.
Lights
Component Description
(1) Power light
(2) Microphone mute light
(3) Num lk light On: Num lk is on.
(4) Wireless light On: An integrated wireless device, such as a wireless local area
(5) Mute light
(6) Caps lock light On: Caps lock is on, which switches the key input to all capital
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state, a power-saving
state. The computer shuts o power to the display and
other unneeded components.
●
O: The computer is o or in Hibernation. Hibernation is a
power-saving state that uses the least amount of power.
●
Amber: Microphone sound is o.
●
O: Microphone sound is on.
network (WLAN) device and/or a Bluetooth® device, is on.
NOTE: On some models, the wireless light is amber when all
wireless devices are o.
●
Amber: Computer sound is o.
●
White: Computer sound is on.
letters.
Top 11
Buttons, speakers, and ngerprint reader
Component Description
(1) Power button
●
When the computer is o, press the button to turn on the
computer.
●
When the computer is on, press the button briey to initiate
Sleep.
●
When the computer is in the Sleep state, press the button
briey to exit Sleep.
●
When the computer is in Hibernation, press the button
briey to exit Hibernation.
CAUTION: Pressing and holding down the power button results
in the loss of unsaved information.
If the computer has stopped responding and shutdown
procedures are ineective, press and hold the power button for at
least 5 seconds to turn o the computer.
To learn more about your power settings, see your power
options.
▲ Type power options in the taskbar search box, and then
select Power Options.
‒ or –
Right-click the Power meter icon , and then select
Power Options.
(2) Speakers Produce sound.
12 Chapter 2 External component identication
Component Description
(3) Wireless button Turns the wireless feature on or o but does not establish a
wireless connection.
A wireless network must be set up before a wireless connection is
possible.
(4) Volume mute button Mutes and restores speaker sound.
(5) Fingerprint reader (select products only) Allows a ngerprint logon to Windows®, instead of a password
logon.
Top 13
Keys
NOTE: Refer to the illustration that most closely matches your computer.
Component Description
(1) esc key Displays system information when pressed in combination with
the fn key.
(2) fn key Executes frequently used system functions when pressed in
combination with a function key, the num lk key, the esc key, or
other key.
See Using the hot keys on page 16
(3) Windows key Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
(4) Function keys Execute frequently used system functions in combination with
the fn key.
See Using the hot keys on page 16.
(5) Embedded numeric keypad A numeric keypad superimposed over the keyboard alphabet
keys that enables you to add, subtract, and perform other
numeric tasks. When num lk is pressed, the keypad can be used
like an external numeric keypad. Each key on the keypad
performs the function indicated by the icon in the upper-right
corner of the key.
NOTE: If the keypad function is active when the computer is
turned o, that function is reinstated when the computer is
turned back on.
(6) Windows application key Displays options for a selected object.
(7) num lk key Turns the embedded numeric keypad on and o.
14 Chapter 2 External component identication
Component Description
(1) esc key Displays system information when pressed in combination with
the fn key.
(2) fn key Executes frequently used system functions when pressed in
combination with a function key, the num lk key, the esc key, or
other key.
See Using the hot keys on page 16
(3) Windows key Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
(4) Function keys Execute frequently used system functions in combination with
the fn key.
See Using the hot keys on page 16.
(5) num lk key Alternates between the navigational and numeric functions on
the integrated numeric keypad.
(6) Integrated numeric keypad A separate keypad to the right of the alphabet keyboard that
enables you to add, subtract, and perform other numeric tasks.
When num lk is on, the integrated keypad can be used like an
external numeric keypad.
Top 15
Using the hot keys
To use a hot key:
▲
Press the fn key, and then press one of the keys listed in the following table.
Press fn+function key Description
Initiates Sleep, which saves your information in system memory. The display and other system components
turn o and power is conserved. To exit Sleep, briey press the power button.
CAUTION: To reduce the risk of information loss, save your work before initiating Sleep.
Turns the keyboard backlight o or on.
NOTE: To conserve battery power, turn o this feature.
Switches the screen image between display devices connected to the system. For example, if a monitor is
connected to the computer, repeatedly pressing this key alternates the screen image from the computer
display to the monitor display to a simultaneous display on both the computer and the monitor.
Decreases the screen brightness incrementally as long as you hold down the key.
Increases the screen brightness incrementally as long as you hold down the key.
Decreases speaker volume incrementally while you hold down the key.
Increases speaker volume incrementally while you hold down the key.
Mutes the microphone.
16 Chapter 2 External component identication
Bottom
Component Description
(1) Docking station support holes Support an optional docking station.
(2) Vent Enables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the internal fan to cycle on and o during routine
operation.
Bottom 17
Front
Component Description
(1) Wireless light On: An integrated wireless device, such as a wireless local
area network (WLAN) device and/or a Bluetooth® device
and/or a WWAN device, is on.
NOTE: On some models, the wireless light is amber when
all wireless devices are o.
(2) Power light
(3) Battery light When AC power is connected:
(4) Drive light
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state, a powersaving state. The computer shuts o power to the
display and other unneeded components.
●
O: The computer is o or in Hibernation.
Hibernation is a power-saving state that uses the
least amount of power.
●
White: The battery charge is greater than 90 percent.
●
Amber: The battery charge is from 0 to 90 percent.
●
O: The battery is not charging.
When AC power is disconnected (battery not charging):
●
Blinking amber: The battery has reached a low
battery level. When the battery has reached a critical
battery level, the battery light begins blinking
rapidly.
●
O: The battery is not charging.
●
Blinking white: The hard drive is being accessed.
●
Amber: HP 3D DriveGuard has temporarily parked the
hard drive.
18 Chapter 2 External component identication
Rear
Component Description
(1) External monitor port Connects an external VGA monitor or projector.
(2) Serial port (select products only) Connects an optional device such as a serial modem,
Locating system information
Important system information is located on the bottom edge of the tablet or on the keyboard base. You may
need the information when travelling internationally or when you contact support:
(1): Serial number
mouse, or printer.
(2): Product number
(3): Model number
(4): Warranty period
Rear 19
Using Windows, briey press the fn+esc key combination to display the System Information screen, which
provides the product name and serial number of your computer, as well as information about the memory,
processor, BIOS, and keyboard.
20 Chapter 2 External component identication
3 Illustrated parts catalog
Computer major components
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
NOTE: Details about your computer, including model, serial number, product key, and length of warranty,
are on the service tag at the bottom of your computer. See Locating system information on page 19 for
details.
Computer major components 21
22 Chapter 3 Illustrated parts catalog
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