HP Pavilion 23-p009, Pavilion 23-p010, Pavilion 23-p017c, Pavilion 23-p020t CTO, Pavilion 23-p027c Reference Guide

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Hardware Reference Guide

HP ProOne 400 G1 All-in-One

Windows is either a trademark or registered trademark of Microsoft Corporation in the United States and/or other countries.

Intel and Core are trademarks of Intel Corporation in the U.S. and other countries.

Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license.

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.

This document contains proprietary information that is protected by copyright. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.

First Edition (January 2014)

Document part number: 754627-001

About This Book

This guide provides basic information for upgrading this computer model.

WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily

harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in

damage to equipment or loss of information.

NOTE: Text set off in this manner provides important supplemental information.

iii

iv About This Book

Table of contents

1 Product features ............................................................................................................................................. 1

Overview .............................................................................................................................................. 1

Front components ................................................................................................................................ 3

Side components .................................................................................................................................. 4

Rear components ................................................................................................................................. 5

Keyboard features ................................................................................................................................ 6

Adjusting the stand ............................................................................................................................... 7

Waking the computer ........................................................................................................................... 7

Serial number location .......................................................................................................................... 8

2 Display options ............................................................................................................................................... 9

Adjusting the audio signal .................................................................................................................... 9

Adjusting display brightness ................................................................................................................. 9

3 Hardware repair and upgrade ...................................................................................................................... 11

Warnings and cautions ....................................................................................................................... 11

Additional information ......................................................................................................................... 11

Connecting and disconnecting power ................................................................................................ 12

Connecting power .............................................................................................................. 12

Disconnecting power ......................................................................................................... 12

Installing a cable lock ......................................................................................................................... 13

Installing an access panel security screw .......................................................................................... 14

Synchronizing the optional wireless keyboard and mouse ................................................................. 15

Removing batteries from the optional wireless keyboard or mouse ................................................... 16

Attaching the computer to a mounting fixture ..................................................................................... 17

Connecting a second display ............................................................................................................. 19

Locating internal components ............................................................................................................ 21

Removing and installing memory ....................................................................................................... 21

SODIMMs .......................................................................................................................... 21

DDR3-SDRAM SODIMMs ................................................................................................. 21

Populating SODIMM sockets ............................................................................................. 23

Installing SODIMMs ........................................................................................................... 23

Replacing the battery ......................................................................................................................... 27

Replacing drives ................................................................................................................................. 32

Replacing a hard drive ....................................................................................................... 32

Removing a hard drive ...................................................................................... 32

Removing a 3.5-inch hard drive ........................................................ 32

Removing a 2.5-inch solid state drive (SSD), self-encrypting

drive (SED), or solid state hybrid drive (SSHD) ................................ 35

Installing a hard drive ........................................................................................ 39

Installing a 3.5-inch hard drive .......................................................... 39

Installing a 2.5-inch solid state drive (SSD), self-encrypting drive

(SED), or solid state hybrid drive (SSHD) ........................................ 41

Replacing the optical disc drive ......................................................................................... 43

Appendix A Electrostatic discharge .............................................................................................................. 48

Preventing electrostatic damage ........................................................................................................ 48

Grounding methods ............................................................................................................................ 48

Appendix B Computer operating guidelines, routine care, and shipping preparation ............................. 49

Computer operating guidelines and routine care ............................................................................... 49

Optical disc drive precautions ............................................................................................................ 50

Shipping preparation .......................................................................................................................... 50

Index ................................................................................................................................................................... 51

1 Product features

Overview

Figure 1-1 HP ProOne 400 G1 All-in-One

The HP ProOne 400 G1 All-in-One offers the following features:

Integrated All-in-One form factor

●

54.6-cm (21.5-inch) diagonal widescreen WLED backlit anti-glare LCD (1920 x 1080)

●

Optical touch screen

●

Adjustable tilt

●

Removable panel on the back of the computer allows users or technicians to easily and

●

efficiently service the PC

VESA mounting holes (100 mm x 100 mm)

●

4th generation Intel

Up to 2 TB Hard Drive, 180 GB Solid State Drive, 256 GB Self-encrypting Solid State Drive, 500

●

GB Self-encrypting Drive, or 1 TB Solid State Hard Drive

Optional Tray-load HP SuperMulti DVD+/-RW SATA Optical Disc Drive, DVD-ROM Disc Drive,

●

or Slim BDXL Blu-ray Writer

Intel H81 Express chipset

●

Two SODIMM slots with up to 16 GB of DDR3 SDRAM memory and dual channel memory

●

support

Intel integrated graphics

●

Core™ processors

DisplayPort video out (with audio) for second display support

●

Serial port

●

Overview 1

DP audio, DP to VGA/DVI/HDMI dongle support

●

● Integrated Realtek RTL8151GH-CG GbE Ethernet Controller

Wireless connectivity (optional):

●

Intel Dual Band Wireless-N 7260, 802.11 a/b/g/n

◦

WLAN and Bluetooth Combo Card, 802.11 a/b/g/n Bluetooth

Optional integrated webcam and dual microphone array

●

● Premium stereo speakers

● Optional 5-in-1 media card reader

6 USB ports: 1 USB 3.0, 1 USB 3.0 (fast-charging), 4 USB 2.0

●

Choice of wired or wireless keyboard and mouse

●

Wired USB keyboard and mouse

◦

HP USB–PS/2 washable keyboard and mouse

◦

Wireless keyboard and mouse

◦

●

Windows

Up to 89-percent energy-efficient external power supply

●

ENERGY STAR

7 Professional 32-bit or 64-bit or Windows® 8.1 Professional 64-bit operating system

qualified, EPEAT® Gold registered

4.0

For more information, go to

http://www.hp.com/go/productbulletin and search for your specific

computer model to find the model-specific QuickSpecs.

2 Chapter 1 Product features

Front components

Figure 1-2 Front components

Table 1-1 Front Components

Component Component

1 Dual microphone array (optional) 4 Power button

2 Webcam activity LED (with optional webcam) 5 High-performance stereo speakers

3 Webcam (optional)

Front components 3

Side components

Figure 1-3 Side components

Table 1-2 Side components

Component Component

1 Tray-load optical disc drive 6 HP 5-in-1 media card reader (optional)

2 Optical disc drive eject button 7 USB 3.0 port

3 Optical disc drive activity LED 8 USB 3.0 port, fast-charging

4 Hard disc drive activity LED 9 Microphone jack

5 HP 5-in-1 medial card reader (optional) LED 10 Headphone jack

4 Chapter 1 Product features

Rear components

Figure 1-4 Rear components

Table 1-3 Rear components

Component Component

1 Access panel 7 Power supply connector

2 Access panel security screw (storage position) 8 Power supply DC-in activity LED

3 Security screw hole (locking position) 9 RJ-45 Gigabit Ethernet port

4 DisplayPort port 10 (4) USB 2.0 ports

5 Serial port 11 Stereo audio line out

6 Cable lock slot

Rear components 5

Keyboard features

Figure 1-5 Keyboard features

Table 1-4 Keyboard features

Component Component

1 Sleep 6 Mute Volume

2 Fast Reverse 7 Decrease Volume

3 Play/Pause 8 Increase Volume

4 Stop 9 Function

5Fast Forward

6 Chapter 1 Product features

Adjusting the stand

This stand allows you to tilt the computer backward from 10 degrees to 25 degrees to set it to a comfortable angle.

Figure 1-6 Adjusting tilt

Waking the computer

To wake the HP ProOne 400 G1 All-in-One:

To wake the computer from standby using the touch feature, swipe the screen or touch the

▲

screen and hold for at least two seconds.

To wake the computer from hibernation, press and release the power button.

▲

This affects the HP ProOne 400 G1 All-in-One equipped with one of the following operating systems:

Windows 8 (all editions, 64-bit)

●

Windows 7 (all editions, 32-bit and 64-bit)

●

Adjusting the stand 7

Serial number location

The computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance.

Figure 1-7 Locating the serial number

8 Chapter 1 Product features

2 Display options

Adjusting the audio signal

There is no hardware volume control button on the HP ProOne 400 G1 AiO. (However, some

●

keyboards do have volume function buttons.)

● Volume can be adjusted with the operating system (OS) master control or the software (SW)

audio player control.

The OS master control and SW audio player control are independent. However, they are both

●

simultaneously active and affect the overall volume of the audio signal.

If the audio signal is not audible, check the OS master control and SW audio player control to be

●

sure that neither is set too low.

Adjusting display brightness

The HP ProOne 400 G1 AiO backlight brightness settings control the overall brightness of the internal display panel only.

Windows 7 and Windows 8 each offer two methods for controlling the backlight brightness of the internal display panel. These two options adjust the backlight brightness from 100% down to 30% of the full backlight brightness.

Windows 7

1. Select Control Panel > Power Options.

2. Move the screen brightness slider at the bottom of the window to make adjustments.

– or –

1. Click Start > Programs > Productivity and Tools > HP My Display.

2. Select Adjust.

3. Move the slider to make adjustments.

4. At the bottom of the window, click Apply or OK to save the changes.

Windows 8

1. Point to the upper-right of the Start screen to display the Charms menu.

2. Click Settings.

3. In the lower corner of the right panel, click Brightness.

4. Move the slider to make adjustments.

– or –

1. From the desktop window, point to the task bar at the lower edge of the screen.

2. Click the Show hidden icons arrow then click the HP My Display icon.

3. Select Adjust.

Adjusting the audio signal 9

4. Move the slider to make adjustments.

5. At the bottom of the window, click Apply or OK to save the changes.

10 Chapter 2 Display options

3 Hardware repair and upgrade

Warnings and cautions

Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.

WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:

Disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Do not plug telecommunications or telephone connectors into the network interface controller (NIC) receptacles.

Do not disable the power cord grounding plug. The grounding plug is an important safety feature.

Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.

For your safety, do not place anything on power cords or cables. Arrange them so that no one may accidentally step on or trip over them. Do not pull on a cord or cable. When unplugging from the electrical outlet, grasp the cord by the plug.

To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup, posture, and health and work habits for computer users, and provides important electrical and mechanical safety information. This guide is located on the Web at

http://www.hp.com/ergo.

WARNING! Computers that are inappropriately situated on dressers, bookcases, shelves, desks,

speakers, chests, or carts may fall over and cause personal injury.

Care should be taken to route all cords and cables connected to the computer so that they can not be pulled, grabbed, or tripped over.

WARNING! Energized and moving parts inside.

Disconnect power to the equipment before removing the access panel.

Replace and secure the access panel before reenergizing the equipment.

CAUTION: Static electricity can damage the electrical components of the computer or optional

equipment. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object. See information.

When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent damage to internal components.

Additional information

For more information on removing and replacing hardware components, the Computer Setup utility, and troubleshooting, refer to the Maintenance and Service Guide (available in English only) for your computer model at

http://www.hp.com.

Electrostatic discharge on page 48 for more

Warnings and cautions 11

Connecting and disconnecting power

Connecting power

1. Connect the peripheral cables to the appropriate ports.

2. Plug the female end of the power cord into the power supply brick (1).

3. Connect the other end of the power cord to an electrical outlet (2).

4. Connect the round end of the power supply cord to the power supply connector on the rear of

the computer (3).

Figure 3-1 Connecting power

5. Press the power button on the top of the computer to turn it on.

Disconnecting power

1. Remove all removable media, such as optical discs or USB flash drives, from the computer.

2. Turn off the computer properly through the operating system, then turn off any external devices.

3. Remove the cable lock, if one is installed on the rear of the computer.

4. Disconnect the power cord from the power supply connector on the rear of the computer.

12 Chapter 3 Hardware repair and upgrade

Installing a cable lock

The cable lock slot enables you to secure your computer. A cable lock is a key lock device that has a wire cable attached. You attach one end of the cable to your desk (or other stationary object) and the other end of the cable to the cable lock slot on back of the computer. Secure the cable lock with the key.

Figure 3-2 Installing a cable lock

Installing a cable lock 13

Installing an access panel security screw

You may prevent access to internal components by securing the access panel. Remove the T15 tamper-resistant Torx security screw from the storage position in the rear of the computer and screw it into the security screw hole (locking position) to prevent removal of the access panel.

Figure 3-3 Securing the access panel

14 Chapter 3 Hardware repair and upgrade

Synchronizing the optional wireless keyboard and mouse

The optional wireless keyboard and mouse are easy to set up. Just remove the battery tabs on both the keyboard and the mouse to activate the preinstalled batteries.

NOTE: For better mouse battery life and performance, avoid using your mouse on a dark or high-

gloss surface, and turn mouse power off when not in use.

To synchronize the wireless keyboard and mouse:

1. Make sure the keyboard and mouse are next to the computer, within 30 cm (1 foot) and away

from interference from other devices.

2. Turn on the computer.

3. Make sure the Power switch on the bottom of the mouse is in the On position.

4. Insert the wireless receiver into a USB port on the computer.

Figure 3-4 Installing the wireless receiver

5. Press and hold the Connect button on the wireless receiver for five seconds until the blue activity

LED begins blinking.

NOTE: When the blue activity LED begins blinking, you have 30 seconds to synchronize the

mouse with the wireless receiver.

6. Press and release the Connect button on the bottom of the mouse. The blue activity LED from

the wireless receiver turns off when synchronization is complete.

NOTE: If the Connect button on the bottom of the mouse is pressed again, the synchronization

of the wireless receiver and the mouse will be broken. Turn the mouse off, then on again to restore the synchronization.

NOTE: If the procedure does not work, remove and then reinsert the wireless keyboard and mouse

receiver from the back of the computer and then synchronize the keyboard and mouse again. If synchronization still does not work, remove and replace the batteries.

Synchronizing the optional wireless keyboard and mouse 15

Removing batteries from the optional wireless keyboard or mouse

NOTE: The wireless keyboard and mouse are optional components.

To remove batteries from the wireless keyboard, remove the battery door on the underside of the keyboard (1) and lift the batteries out of the battery compartment (2).

Figure 3-5 Removing batteries from the wireless keyboard

To remove batteries from the wireless mouse, remove the battery door on the underside of the mouse (1) and lift the batteries out of the battery compartment (2).

Figure 3-6 Removing batteries from the wireless mouse

16 Chapter 3 Hardware repair and upgrade

Attaching the computer to a mounting fixture

The computer stand is secured to a VESA mount inside the computer chassis. You can remove the stand and install the computer on a wall, monitor arm, or other mounting fixture.

Table 3-1 Computer dimensions (without stand)

Computer dimensions (without stand)

Height 362.9 mm 14.3 in

Width 557.9 mm 22.0 in

Depth 59.4 mm 2.3 in

Computer weight (without stand)

Minimum configuration 7.42 kg 16.4 lb

With Options 7.57 kg 16.7 lb

VESA standard hole patterns

height x width 100 mm x 100 mm 3.94 in x 3.94 in

To remove the stand:

1. Remove all removable media, such as optical discs or USB flash drives, from the computer.

2. Turn off the computer properly through the operating system, then turn off any external devices.

3. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer.

4. Remove/disengage any security devices that prohibit opening the computer.

5. Place the computer face down on a soft flat surface. HP recommends that you set down a

blanket, towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.

6. Loosen the two captive screws at the bottom of the computer (1) to release the bottom edge of

the access panel.

Attaching the computer to a mounting fixture 17

7. Rotate the bottom edge of the access panel up (2), and then lift the access panel off of the

computer (3).

Figure 3-7 Removing the access panel

8. Place the access panel down on a flat surface with the inside of the panel facing up.

9. Remove the three screws (1) securing the stand to the access panel, and then remove the stand

(2).

Figure 3-8 Removing the stand

NOTE: Save the screws together with the stand in case they are needed in the future.

10. Set the top edge of the access panel down on the top edge of the computer chassis (1). Be sure

to align the hooks on the underside of the top edge of the access panel with the top edge of the computer.

11. Rotate the bottom edge of the access panel down (2) and press it firmly onto the chassis until it

locks into place.

18 Chapter 3 Hardware repair and upgrade

12. Tighten the captive screws (3) to secure the access panel in place.

Figure 3-9 Replacing the access panel

The computer is now ready to be mounted to a wall, monitor arm, or other mounting fixture.

Connecting a second display

The DisplayPort connector on the rear of the computer allows you to connect a second display to the computer.

If you are adding a second display that has a DisplayPort connector, then no DisplayPort video adapter is required. If you are adding a second display that does not have a DisplayPort connector, you can purchase a DisplayPort video adaptor from HP for your configuration.

DisplayPort adapters and video cables are purchased separately. HP offers the following adapters:

DisplayPort to VGA adapter

●

DisplayPort to DVI adapter

●

DisplayPort to HDMI adapter

●

To connect a second display:

1. Turn off power to the computer and the second display that you are connecting to the computer.

Connecting a second display 19

2. If your second display has a DisplayPort connector, connect a DisplayPort cable directly

between the DisplayPort connector on the rear of the computer and the DisplayPort connector on the second display.

Figure 3-10 Connecting a second display using a DisplayPort cable

3. If your second display does not have a DisplayPort connector, connect a DisplayPort video

adapter to the DisplayPort connector of the computer. Then connect a cable (VGA, DVI. or HDMI, depending on your application) between the adapter and the second display.

Figure 3-11 Connecting a second display using a DisplayPort adapter

4. Turn on power to the computer and the second display.

NOTE: Use the graphics card software or the Windows Display Settings to configure the second

display as a mirrored image of the primary display or an extension of the primary display.

20 Chapter 3 Hardware repair and upgrade

Locating internal components

The following sections contain procedures for removing and replacing these internal components:

Optical disc drive

●

Hard disc drive, solid state drive, or self-encrypting drive

●

Battery

●

Memory

●

Figure 3-12 Locating internal components

Component Component

1 Optical disc drive 3 Battery

2 Hard disc drive 4 Memory

Removing and installing memory

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) small outline dual inline memory modules (SODIMMs).

SODIMMs

The memory sockets on the system board can be populated with up to two industry-standard SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM. To achieve the maximum memory support, you can populate the system board with up to 16 GB of memory.

DDR3-SDRAM SODIMMs

For proper system operation, the SODIMMs must be:

industry-standard 204-pin

●

unbuffered non-ECC PC3-10600 DDR3-1600 MHz-compliant

●

1.5 volt DDR3-SDRAM SODIMMs

●

Locating internal components 21

The DDR3-SDRAM SODIMMs must also:

● support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)

contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification

●

In addition, the computer supports:

● 1-Gbit, 2-Gbit, and 4-Gbit non-ECC memory technologies

● single-sided and double-sided SODIMMS

SODIMMs constructed with x8 and x16 SDRAMs; SODIMMs constructed with x4 SDRAMs are

●

not supported

NOTE: The system will not operate properly if you install unsupported SODIMM memory.

HP offers upgrade memory for this computer and advises that the consumer purchase it to avoid compatibility issues with unsupported third-party memory.

22 Chapter 3 Hardware repair and upgrade

Populating SODIMM sockets

The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the SODIMMs are installed. Refer to the following table to identify the SODIMM channel locations.

Table 3-2 Identifying SODIMM locations

Location System board label Channel

Lower Socket SODIMM1 Channel A

Upper Socket SODIMM3 Channel B

The system will operate in single channel mode if the SODIMM sockets are populated in one

●

channel only.

The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not

●

equal to the memory capacity of the SODIMM in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel and the remainder is assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to channel A.

The system will operate in a higher-performing dual channel mode if the memory capacity of the

●

SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B.

In any mode, the maximum operational speed is determined by the slowest SODIMM in the

●

system.

Installing SODIMMs

There are two memory sockets on the system board. To remove or install memory modules:

1. Remove all removable media, such as optical discs or USB flash drives, from the computer.

2. Turn off the computer properly through the operating system, then turn off any external devices.

3. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the

power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

4. Remove/disengage any security devices that prohibit opening the computer.

5. Place the computer face down on a soft flat surface. HP recommends that you set down a

blanket, towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.

6. Loosen the two captive screws at the bottom of the computer (1) to release the bottom edge of

the access panel.

Removing and installing memory 23

7. Rotate the bottom edge of the access panel up (2), and then lift the access panel off of the

computer (3).

Figure 3-13 Removing the access panel

8. Remove the three screws securing the VESA panel to the chassis (1), and then lift the panel out

of the chassis (2).

Figure 3-14 Removing the VESA panel

9. Remove the two screws securing the fire enclosure shield to the chassis (1).

24 Chapter 3 Hardware repair and upgrade

10. Rotate the shield to the right (2), and then lift it off the chassis (3).

Figure 3-15 Removing the fire enclosure shield

The memory modules can now be seen in the right side of the chassis.

Figure 3-16 Locating the memory modules

Removing and installing memory 25

11. To remove a memory module, press outward on the two latches on each side of the SODIMM

(1), then pull the SODIMM out of the socket (2).

Figure 3-17 Removing a memory module

12. To install a memory module, slide the SODIMM into the socket at approximately a 30° angle (1),

then press the SODIMM down (2) so that the latches lock it in place.

Figure 3-18 Installing a memory module

NOTE: A memory module can be installed in only one way. Match the notch on the module

with the tab on the memory socket.

13. Engage the three tabs on the right edge of the fire enclosure shield with the matching slots on

the right side of the chassis and rotate the fire enclosure shield down onto the chassis.

14. Fasten the two screws to secure the fire enclosure shield to the chassis.

15. Place the VESA panel onto the chassis and fasten the three screws to secure the VESA panel to

the chassis.

16. Set the top edge of the access panel down on the top edge of the computer chassis (1). Be sure

to align the hooks on the underside of the top edge of the access panel with the top edge of the computer.

26 Chapter 3 Hardware repair and upgrade

17. Rotate the bottom edge of the access panel down (2) and press it firmly onto the chassis until it

locks into place.

18. Tighten the captive screws (3) to secure the access panel in place.

Figure 3-19 Replacing the access panel

19. Place the computer in the upright position.

20. Reconnect the power cord and external devices.

21. Lock any security devices that were disengaged when the access panel was removed.

22. Turn on the computer. The computer automatically recognizes the additional memory when you

turn on the computer.

Replacing the battery

The battery is located on the system board on the left side of the memory modules. The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery.

WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of

fire and burns if the battery is not handled properly. To reduce the risk of personal injury:

Do not attempt to recharge the battery.

Do not expose to temperatures higher than 60 °C (140 ºF).

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

Replace the battery only with the HP spare designated for this product.

CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings.

When the battery is removed or replaced, the CMOS settings will be cleared.

Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object.

Replacing the battery 27

NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC

wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to

http://www.hp.com/

recycle.