HP ProOne 400 G3 Maintenance & Service Guide

Maintenance & Service Guide

HP ProOne 400 G3 20 inch All-in-One Business PC

© Copyright 2017 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, Celeron, and Pentium are trademarks of Intel Corporation in the U.S. and other countries. Microsoft and Windows are trademarks of the Microsoft group of companies.

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: July 2017

Document Part Number: L01395-001

Product notice

This user 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. Go to http://www.microsoft.com for details.

Software terms

By installing, copying, downloading, or otherwise using any software product preinstalled on this computer, you agree to be bound by the terms of the HP End User License Agreement (EULA). If you do not accept these license terms, your sole remedy is to return the entire unused product (hardware and software) within 14 days for a full refund subject to the refund policy of your seller.

For any further information or to request a full refund of the price of the computer, please contact your seller.

About This Book

WARNING! Text set o in this manner indicates that failure to follow directions could result in bodily harm or loss of life.

CAUTION: Text set o in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.

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

iii

iv About This Book

Table of contents

1 Product features ...........................................................................................................................................	1
Overview ................................................................................................................................................................	1
Front components ..................................................................................................................................................	2
Side components ...................................................................................................................................................	3
Rear components ...................................................................................................................................................	4
Labels .....................................................................................................................................................................	5
2 Illustrated parts catalog ................................................................................................................................	6
System parts ..........................................................................................................................................................	6
Mass storage devices .............................................................................................................................................	8
Processors and memory modules .........................................................................................................................	9
Cables .....................................................................................................................................................................	9
Keyboards and mice .............................................................................................................................................	10
3 Routine care, SATA drive guidelines, and disassembly preparation ..................................................................	11
Electrostatic discharge information ....................................................................................................................	11
Generating static ...............................................................................................................................	12
Preventing electrostatic damage to equipment ...............................................................................	12
Personal grounding methods and equipment ..................................................................................	13
Grounding the work area ...................................................................................................................	13
Recommended materials and equipment ........................................................................................	13
Operating guidelines ...........................................................................................................................................	14
Routine care .........................................................................................................................................................	14
General cleaning safety precautions ................................................................................................	14
Cleaning the Computer Case .............................................................................................................	15
Cleaning the keyboard .......................................................................................................................	15
Cleaning the display ..........................................................................................................................	15
Cleaning the mouse ...........................................................................................................................	16
Service considerations .........................................................................................................................................	16
Tools and software Requirements ....................................................................................................	16
Screws ...............................................................................................................................................	16
Cables and connectors ......................................................................................................................	16
Hard Drives ........................................................................................................................................	16
Lithium coin cell battery ....................................................................................................................	17
SATA hard drive cables .........................................................................................................................................	18
SATA data cable .................................................................................................................................	18

v

Cable management ..............................................................................................................................................	18
4 Removal and Replacement Procedures ..........................................................................................................	19
Preparing to disassemble the computer .............................................................................................................	19
Attaching and removing a stand .........................................................................................................................	20
Attaching and removing an easel stand ...........................................................................................	20
Attaching an easel stand ................................................................................................	20
Removing an easel stand ................................................................................................	20
Attaching and removing an adjustable height stand ........................................................................	21
Attaching an adjustable height stand ............................................................................	21
Removing an adjustable height stand ............................................................................	22
Rear port cover ....................................................................................................................................................	23
Access panel .........................................................................................................................................................	24
VESA mount cover ................................................................................................................................................	25
Locating internal components ............................................................................................................................	26
Drives ...................................................................................................................................................................	27
Replacing a hard disc drive ................................................................................................................	27
Removing a 2.5-inch hard disc drive ..............................................................................	27
Installing a 2.5-inch hard disc drive ................................................................................	29
Replacing the optical drive ................................................................................................................	30
System board (EMI) shield ...................................................................................................................................	32
Memory ................................................................................................................................................................	33
Battery .................................................................................................................................................................	35
WLAN module ......................................................................................................................................................	36
Heat sink ..............................................................................................................................................................	37
Processor .............................................................................................................................................................	38
Serial/PS2 board ..................................................................................................................................................	40
System board .......................................................................................................................................................	41
System board callouts .........................................................................................................................................	44
VESA mounting bracket .......................................................................................................................................	45
Fan assembly .......................................................................................................................................................	46
Drive cable ...........................................................................................................................................................	47
Top trim ................................................................................................................................................................	48
Webcam module ..................................................................................................................................................	49
Antennas ..............................................................................................................................................................	50
Right trim .............................................................................................................................................................	51
Left trim ...............................................................................................................................................................	52
Feet, bottom panel and trim ................................................................................................................................	53
Speakers ..............................................................................................................................................................	55
Display panel .......................................................................................................................................................	56

vi

5 Computer Setup (F10) Utility ........................................................................................................................	61
Computer Setup (F10) Utilities ............................................................................................................................	61
Using Computer Setup (F10) Utilities ................................................................................................	61
Computer Setup–Main .......................................................................................................................	63
Computer Setup—Security ...............................................................................................................	65
Computer Setup—Advanced .............................................................................................................	67
Recovering the Con guration Settings ...............................................................................................................	72
6 Using HP PC Hardware Diagnostics (UEFI) .......................................................................................................	73
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device ....................................................................	74
7 Troubleshooting without diagnostics ............................................................................................................	75
Safety and comfort ..............................................................................................................................................	75
Before you call for technical support ..................................................................................................................	75
Helpful hints ........................................................................................................................................................	76
Solving general problems ....................................................................................................................................	77
Solving power problems ......................................................................................................................................	81
Solving hard drive problems ................................................................................................................................	82
Solving audio problems .......................................................................................................................................	84
Solving printer problems .....................................................................................................................................	85
Solving keyboard and mouse problems ..............................................................................................................	86
Solving hardware installation problems .............................................................................................................	87
Solving network problems ..................................................................................................................................	88
Solving memory problems ..................................................................................................................................	90
Solving USB flash drive problems ........................................................................................................................	92
Solving Internet access problems .......................................................................................................................	93
Solving software problems ..................................................................................................................................	94
8 Backing up, restoring, and recovering ...........................................................................................................	95
Creating recovery media and backups ................................................................................................................	95
Creating HP Recovery media (select products only) .........................................................................	95
Using Windows tools ...........................................................................................................................................	96
Restore and recovery ...........................................................................................................................................	97
Recovering using HP Recovery Manager ...........................................................................................	97
What you need to know before you get started .............................................................	97
Using the HP Recovery partition (select products only) .................................................	98
Using HP Recovery media to recover ..............................................................................	98
Changing the computer boot order ................................................................................	99
Removing the HP Recovery partition (select products only) .........................................	99

vii

9 POST error messages and diagnostic front panel LEDs and audible codes .......................................................	100
POST numeric codes and text messages ..........................................................................................................	100
Interpreting system validation diagnostic front panel LEDs and audible codes ..............................................	105
10 Password security and resetting CMOS ......................................................................................................	107
Resetting the password jumper ........................................................................................................................	107
Clearing and resetting the BIOS ........................................................................................................................	109
Appendix A Power cord set requirements .......................................................................................................	110
General requirements ........................................................................................................................................	110
Japanese power cord requirements ..................................................................................................................	110
Country-speci c requirements ..........................................................................................................................	111
Appendix B Statement of memory volatility ...................................................................................................	112
Nonvolatile memory usage ...............................................................................................................................	114
Questions and answers .....................................................................................................................................	116
Using HP Sure Start (select models only) ..........................................................................................................	117
Appendix C peci c tions .............................................................................................................................	118
Index ...........................................................................................................................................................	119

viii

1Product features

Overview

CAUTION: When the All One (AiO) is mounted using a VESA arm, horizontal operation of the AiO is not supported and may lead to thermal issues.

NOTE: For the latest speci cations or additional speci cations on this product, go to http://www.hp.com/go/ quickspecs/ and search for your speci c display model to nd the model-speci c QuickSpecs.

Overview 1

Front components

Component		Component
1	Webcam LED	3	Webcam microphone
2	Webcam lens	4	Speakers

2Chapter 1 Product features

Side components

Component		Component
1	Power button	5	HP SD media card reader (optional)
2	USB Type-A charging ports	6	Optical disc drive
3	USB Type-A ports	7	Optical disc drive eject button
4	Headset jack

Side components

3

Rear components

Component		Component
1	Security cable slot	6	DisplayPort port
2	Serial port	7	USB Type-A ports (2)
3	PS/2 keyboard connector	8	USB Type-A ports (2)
4	PS/2 mouse connector	9	RJ-45 (network) jack
5	Power connector

4Chapter 1 Product features

Labels

The labels affixed to the computer provide information you may need when you troubleshoot system problems or travel internationally with the computer.

IMPORTANT: All labels described in this section will be located under the stand or affixed to the bottom of the computer.

1.Microsoft® Certi cate of Authenticity label (select models only prior to Windows 8)—Contains the Windows Product Key. You may need the Product Key to update or troubleshoot the operating system. HP platforms preinstalled with Windows 8 or Windows 8.1 do not have the physical label, but have a Digital Product Key electronically installed.

NOTE: This Digital Product Key is automatically recognized and activated by Microsoft Operating Systems on a reinstall of the Windows 8 or Windows 8.1 operating system with HP-approved recovery methods.

2.Service label—Provides important information to identify your computer. When contacting support, you will probably be asked for the serial number, and possibly for the product number or the model number. Locate these numbers before you contact support.

Component

(1)Serial number

(2)Product number

(3)Warranty period

3.Serial number label

Labels 5

2Illustrated parts catalog

Component appearance may vary.

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.

System parts

6Chapter 2 Illustrated parts catalog

Item Description

(1)Front bezel (for use in non-touch models)

(2)Rear cover (main)

(3)Rear port cover Trims

(4)Top trim

(5)Left

(6)Right

(7)Bottom trim

(8)Feet (left and right)

(9)Speakers (left and right)

(10)Webcam module

(11)Power connector cable

(12)Heat sink (thermal module) (includes replacement thermal material)

(13)Serial port and PS/2 connector board

(14)Display panel

(15)System board

(16)Drive cable

(17)Fan

*AC adapter, 90W Stands

*Adjustable height

*Easel

*WLAN modules

Intel Dual Band Wireless-AC 7265 NV Intel Centrino Wireless-N 2230

Intel Dual Band Wireless-AC 3168

802.11bgn, 1x1, single band, Bluetooth 4.1 combo module

*Wireless antenna (for use with WLAN module)

*Optical drive bezel blank (for use in models without an optical drive)

*Optical drive bezel

*Mylar cover (for use in models without speakers)

*Card reader cover

*Hard drive isolation grommets

*Shutter button (for use in models without a camera)

System parts

7

Item Description

*VESA cover (for use in models without a stand)

*HP keyed cable lock

*Power cord

Mass storage devices

Description

Optical drive (does not include bezel)

DVD±RW drive

DVD-ROM drive

Hard drive

1 TB, hybrid SSD drive

1 TB, 7200 rpm

500 GB, 5400 rpm, hybrid SSD drive

500 GB, 7200 rpm hard drive, self-encrypting (SED)

500 GB, 7200 rpm hard drive

500 GB, 5400 rpm hard drive, FIPS

Solid-state drive (not illustrated)

1-TB solid-state drive, TLC

512-GB solid-state drive, PCIe, SS, TLC

512-GB solid-state drive, PCIe, DS

512-GB solid-state drive, SATA-3, OPAL 2.0, self-encrypting (SED), TLC

512-GB solid-state drive, SATA-3, FIPS, TLC

256-GB solid-state drive, PCIe

256-GB solid-state drive, PCIe, TLC

256-GB solid-state drive, SATA-3, TLC

256-GB solid-state drive, OPAL 2.0, self-encrypting (SED), TLC

8Chapter 2 Illustrated parts catalog

Processors and memory modules

Description

Memory modules (SODIMM; PC4-2400)

16-GB

8-GB

4-GB

Intel Processors (include replacement thermal material)

Intel Core i7-7700T (2.9-GHz)

Intel Core i5-7600T (2.8-GHz)

Intel Core i3-7500T (2.7-GHz)

Intel Core i3-7300T (3.5-GHz)

Intel Core i3-7100T (3.4-GHz)

Intel Core i7-6700T (2.8-GHz)

Intel Core i5-6600T (2.7-GHz)

Intel Core i5-6500T (2.5-GHz)

Intel Core i3-6100T (3.2-GHz)

Intel Pentium G4600T (3.0-GHz)

Intel Pentium G4560T (2.9-GHz)

Intel Pentium G4400T (2.9-GHz)

Intel Celeron G3930T (2.7-GHz)

Intel Celeron G3900T (2.6-GHz)

Cables

Description

Backlight cable

SDC

INX

Serial port cable

Hard drive + optical drive SATA data cable

DVI cable

LVDS (display) cable

DisplayPort cable

Webcam cable

USB cable

Processors and memory modules

9

Description

Power (DC-in) cable

Adapter, USB to serial

Adapter, DisplayPort to VGA

Adapter, DisplayPort to DVI

Adapter, DisplayPort to HDMI 1.4

Keyboards and mice

Description

Keyboard

USB

USB, slim

USB Washable

USB Essential

Conferencing

Wireless with mouse

Smartcard

PS/2, slim

Healthcare

Antimicrobial

Mouse

USB gray

USB Antimicrobial

USB/PS2 Washable

USB hardened

USB, optical

PS/2, optical

USB, laser

10 Chapter 2 Illustrated parts catalog

3Routine care, SATA drive guidelines, and disassembly preparation

This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service.

CAUTION: 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 system board or component damage.

Electrostatic discharge information

A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be a ected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.

Electrostatic discharge information 11

Generating static

The following table shows that:

● Di erent activities generate di erent amounts of static electricity.

●Static electricity increases as humidity decreases.

	Relative Humidity
Event	55%	40%	10%
Walking across carpet	7,500 V	15,000 V	35,000 V
Walking across vinyl floor	3,000 V	5,000 V	12,000 V
Motions of bench worker	400 V	800 V	6,000 V
Removing DIPs from plastic tube	400 V	700 V	2,000 V
Removing DIPs from vinyl tray	2,000 V	4,000 V	11,500 V
Removing DIPs from Styrofoam	3,500 V	5,000 V	14,500 V
Removing bubble pack from PCB	7,000 V	20,000 V	26,500 V
Packing PCBs in foam-lined box	5,000 V	11,000 V	21,000 V

These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

NOTE: 700 volts can degrade a product.

Preventing electrostatic damage to equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories.

●To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

●Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.

●Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.

●Place items on a grounded surface before removing them from their container.

●Always be properly grounded when touching a sensitive component or assembly.

●Avoid contact with pins, leads, or circuitry.

●Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to equipment:

●Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be

connected and t snugly into the banana plug connector on the grounding mat or workstation.

●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method	Voltage
Antistatic plastic	1,500
Carbon-loaded plastic	7,500
Metallized laminate	15,000

Grounding the work area

To prevent static damage at the work area, use the following precautions:

●Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment.

●Use static-dissipative mats, foot straps, or air ionizers to give added protection.

●Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only at static-free work areas.

●Turn o power and input signals before inserting and removing connectors or test equipment.

● Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.

●Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.

●	Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

Recommended materials and equipment

Materials and equipment that are recommended for use in preventing static electricity include:

●Antistatic tape

●Antistatic smocks, aprons, or sleeve protectors

●Conductive bins and other assembly or soldering aids

●Conductive foam

●Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance

●Static-dissipative table or floor mats with hard tie to ground

●Field service kits

●Static awareness labels

●Wrist straps and footwear straps providing one-megohm +/- 10% resistance

Electrostatic discharge information 13

●Material handling packages

●Conductive plastic bags

●Conductive plastic tubes

●Conductive tote boxes

●Opaque shielding bags

●Transparent metallized shielding bags

●Transparent shielding tubes

Operating guidelines

To prevent overheating and to help prolong the life of the computer:

●Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.

●Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the display to permit the required airflow.

●Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also restricts airflow.

●Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign matter can block the vents and limit the airflow. Be sure to unplug the computer before cleaning the air vents.

●Never operate the computer with the cover or side panel removed.

●Do not stack computers on top of each other or place computers so near each other that they are subject to each other’s re-circulated or preheated air.

●If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be provided on the enclosure, and the same operating guidelines listed above will still apply.

●Keep liquids away from the computer and keyboard.

●Never cover the ventilation slots on the display with any type of material.

●Install or enable power management functions of the operating system or other software, including sleep states.

Routine care

General cleaning safety precautions

1.Never use solvents or flammable solutions to clean the computer.

2.Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component.

3.Always unplug the computer when cleaning with liquids or damp cloths.

4.Always unplug the computer before cleaning the keyboard, mouse, or air vents.

5.Disconnect the keyboard before cleaning it.

6.Wear safety glasses equipped with side shields when cleaning the keyboard.

14 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Cleaning the Computer Case

Follow all safety precautions in General cleaning safety precautions on page 14 before cleaning the computer.

To clean the computer case, follow the procedures described below:

●To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.

●For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water.

●For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate quickly and not leave a residue.

●After cleaning, always wipe the unit with a clean, lint-free cloth.

●Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow.

Cleaning the keyboard

Follow all safety precautions in General cleaning safety precautions on page 14 before cleaning the keyboard.

To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the Computer Case on page 15.

When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 14 before following these procedures:

CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the keys.

●Visible debris underneath or between the keys may be removed by vacuuming or shaking.

●Canned, pressurized air may be used to clean debris from under the keys. Caution should be used as too much air pressure can dislodge lubricants applied under the wide keys.

●If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets.

CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly.

●Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to remove any

bers or dirt in con ned areas. Allow the parts to air dry before reassembly.

Cleaning the display

●Wipe the display screen with a clean cloth moistened with water or with a towelette designed for cleaning displays. Do not use sprays or aerosols directly on the screen; the liquid may seep into the housing and damage a component. Never use solvents or flammable liquids on the display.

●To clean the display body follow the procedures in Cleaning the Computer Case on page 15.

Routine care 15

Cleaning the mouse

Before cleaning the mouse, ensure that the power to the computer is turned o .

●	Clean the mouse ball by rst removing the retaining plate and the ball from the housing. Pull out any
	debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.

●To clean the mouse body, follow the procedures in Cleaning the Computer Case on page 15.

Service considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.

Tools and software Requirements

To service the computer, you need the following:

●Torx T-15 screwdriver

●Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)

●Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)

●Phillips #2 screwdriver

●Diagnostics software

●Tamper-resistant T-15 wrench

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of di erent lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

CAUTION: Metric screws have a black nish. U.S. screws have a silver nish and are used on hard drives only.

CAUTION: As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.

Cables and connectors

Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the computer.

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.

16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

●If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.”

●Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.

●Avoid dropping drives from any height onto any surface.

●	If you are inserting or removing a hard drive, turn o the computer. Do not remove a hard drive while the
	computer is on or in standby mode.

●Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to Electrostatic discharge information on page 11

●Do not use excessive force when inserting a drive.

●	Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds
	such as displays or speakers.

Lithium coin cell battery

The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years.

See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures.

WARNING! This computer contains a lithium battery. There is a risk of re and chemical burn if the battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or re, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.

NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents.

Service considerations

17

SATA hard drive cables

SATA data cable

Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives.

Current HP desktop products ship with SATA 6.0 Gb/s hard drives.

SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius.

The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.

Cable management

Always follow good cable management practices when working inside the computer.

●Keep cables away from major heat sources like the heat sink.

●Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.

●Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved.

●When folding a flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.

●Some flat ribbon cables come prefolded. Never change the folds on these cables.

●Do not bend any cable sharply. A sharp bend can break the internal wires.

●Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.

●Never crease a SATA data cable.

●Do not rely on components like the drive cage, power supply, or computer cover to push cables down into the chassis. Always position the cables to lay properly by themselves.

18 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

4Removal and Replacement Procedures

The following sections provide information about disassembling various components of the computer.

Preparing to disassemble the computer

To avoid injury and equipment damage, always complete the following steps in order, when opening the HP All-in-One.

1.Remove all media from the computer.

2.Shut down the computer.

3.After the system has completely shut down, disconnect the power adapter from the back of the computer.

4.If a cable lock is installed on the rear of the unit, remove the lock.

5.Disconnect all other attached cables from the back of the computer.

6.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 screen surface from scratches or other damage.

WARNING! Beware of sharp edges inside the chassis.

Preparing to disassemble the computer 19

Attaching and removing a stand

Two stands are available for the computer:

●Attaching and removing an easel stand

●Attaching and removing an adjustable height stand

Attaching and removing an easel stand

Attaching an easel stand

To install the stand:

1.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.

2.Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the computer (1).

3.Rotate the stand down until it clicks into place (2).

Removing an easel stand

To remove the stand:

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

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

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

4.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.

5.Remove the rear port cover, if it is installed. For instructions, see Rear port cover on page 23.

6.Press the release latch under the stand (1).

20 Chapter 4 Removal and Replacement Procedures

7.Lift the stand up (2), and then pull the stand hooks out of the computer (3).

Attaching and removing an adjustable height stand

Attaching an adjustable height stand

To install the stand:

1.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.

2.Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the computer (1).

3.Rotate the stand down until it clicks into place (2).

Attaching and removing a stand 21

Removing an adjustable height stand

To remove the stand:

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

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

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

4.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.

5.Remove the rear port cover, if it is installed. For instructions, see Rear port cover on page 23.

6.Press the release latch under the stand (1).

7.Lift the stand up (2), and then pull the stand hooks out of the computer (3).

22 Chapter 4 Removal and Replacement Procedures