HP 18, 205 G1 User Manual
Maintenance & Service Guide
HP 205 G1 All-in-One Business PC
HP 18 All-in-One Business PC
© Copyright 2013, 2014 Hewlett-Packard
Development Company, L.P. The information
contained herein is subject to change without
notice.
Microsoft and Windows are U.S. registered
trademarks of the Microsoft group of
companies.
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 HewlettPackard Company.
Second Edition (May 2014)
First Edition (November 2013)
Document Part Number: 751755-002
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 on all editions of
Windows 8. This computer may require
upgraded and/or separately purchased
hardware, drivers, and/or software to take full
advantage of Windows 8 functionality. See
http://www.microsoft.com for details.
About This Book
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 ................................................................................................................................................. 2
Top components .................................................................................................................................................... 2
Right components .................................................................................................................................................. 3
Left components .................................................................................................................................................... 4
Rear components ................................................................................................................................................... 5
2 Activating and Customizing the Software ........................................................................................................ 6
Activating and customizing the software in Windows 8 ....................................................................................... 6
Activating the Windows Operating System ........................................................................................ 6
Downloading Windows 8 updates ....................................................................................................... 6
Customizing the monitor display ........................................................................................................ 6
3 Illustrated parts catalog ................................................................................................................................ 7
Boards and memory .............................................................................................................................................. 7
Miscellaneous parts ............................................................................................................................................... 8
Mass storage devices ............................................................................................................................................. 9
Cables ..................................................................................................................................................................... 9
Sequential part number listing .............................................................................................................................. 9
4 Serial ATA (SATA) drive guidelines and routine care and disassembly preparation ............................................ 11
SATA hard drives .................................................................................................................................................. 11
SATA hard drive cables ........................................................................................................................................ 11
SATA data cable ................................................................................................................................. 11
SMART ATA drives ................................................................................................................................................ 12
Electrostatic discharge information ................................................................................................................... 12
Generating static ............................................................................................................................... 12
Preventing electrostatic damage to equipment .............................................................................. 12
Personal grounding methods and equipment .................................................................................. 13
Grounding the work area .................................................................................................................. 13
Recommended materials and equipment ........................................................................................ 14
Operating guidelines ........................................................................................................................................... 14
Routine care ......................................................................................................................................................... 15
General cleaning safety precautions ................................................................................................ 15
Cleaning the computer case .............................................................................................................. 15
v
Cleaning the keyboard ...................................................................................................................... 15
Cleaning the display .......................................................................................................................... 16
Cleaning the mouse ........................................................................................................................... 16
Service considerations ........................................................................................................................................ 16
Tools and software requirements .................................................................................................... 16
Screws ............................................................................................................................................... 16
Cables and connectors ...................................................................................................................... 17
Hard drives ........................................................................................................................................ 17
Lithium coin cell battery ................................................................................................................... 17
5 Removal and Replacement Procedures All-in One (AIO) Chassis ....................................................................... 18
Preparing to disassemble the computer ............................................................................................................. 18
Rear cover ............................................................................................................................................................ 19
Stand assembly ................................................................................................................................................... 20
Webcam module .................................................................................................................................................. 21
Replacing drives .................................................................................................................................................. 22
Replacing the hard disc drive with a 3.5-inch drive or a 2.5-inch drive ........................................... 22
Replacing the optical disc drive ........................................................................................................ 25
Front bezel ........................................................................................................................................................... 27
Converter board ................................................................................................................................................... 29
Power button board ............................................................................................................................................. 31
Speakers .............................................................................................................................................................. 33
Fan ....................................................................................................................................................................... 34
Hard drive and optical drive cables and connectors ........................................................................................... 36
System board cover ............................................................................................................................................. 38
Memory ................................................................................................................................................................ 40
WLAN module ...................................................................................................................................................... 42
RTC battery .......................................................................................................................................................... 43
System board ....................................................................................................................................................... 45
Display panel ....................................................................................................................................................... 48
6 Computer Setup (F10) Utility ........................................................................................................................ 50
Computer Setup (F10) Utilities ............................................................................................................................ 50
Using Computer Setup (F10) Utilities ............................................................................................... 51
Computer Setup—File ...................................................................................................................... 52
Computer Setup—Storage ............................................................................................................... 53
Computer Setup—Security ............................................................................................................... 54
Computer Setup—Power .................................................................................................................. 58
Computer Setup—Advanced ............................................................................................................ 59
Recovering the Configuration Settings ............................................................................................................... 61
vi
7 Troubleshooting Without Diagnostics ........................................................................................................... 62
Safety and Comfort ............................................................................................................................................. 62
Before You Call for Technical Support ................................................................................................................ 62
Helpful Hints ........................................................................................................................................................ 63
Solving General Problems ................................................................................................................................... 64
Solving Power Problems ..................................................................................................................................... 68
Solving Hard Drive Problems ............................................................................................................................... 69
Solving Media Card Reader Problems ................................................................................................................. 71
Solving Display Problems .................................................................................................................................... 72
Solving Audio Problems ...................................................................................................................................... 76
Solving Printer Problems .................................................................................................................................... 79
Solving Keyboard and Mouse Problems ............................................................................................................. 80
Solving Hardware Installation Problems ............................................................................................................ 81
Solving Network Problems .................................................................................................................................. 83
Solving Memory Problems .................................................................................................................................. 86
Solving Processor Problems ............................................................................................................................... 88
Solving CD-ROM and DVD Problems .................................................................................................................... 88
Solving USB Flash Drive Problems ...................................................................................................................... 90
Solving Front Panel Component Problems ......................................................................................................... 91
Solving Internet Access Problems ....................................................................................................................... 92
Solving Software Problems ................................................................................................................................. 93
Contacting Customer Support ............................................................................................................................. 94
8 HP PC Hardware Diagnostics ......................................................................................................................... 95
Why run HP PC Hardware Diagnostics – UEFI ...................................................................................................... 95
How to access and run HP PC Hardware Diagnostics - UEFI ............................................................................... 95
Downloading HP PC Hardware Diagnostics to a USB device ............................................................................... 95
9 Backup and Recovery ................................................................................................................................... 97
Backup and recovery in Windows 8 ..................................................................................................................... 97
Backing up your information ............................................................................................................ 97
Performing a system recovery ......................................................................................................... 98
Using the Windows recovery tools ................................................................................. 98
Using f11 recovery tools ................................................................................................. 99
Using Windows 8 operating system media (purchased separately) ............................. 99
10 POST Error Messages ................................................................................................................................ 100
POST Numeric Codes and Text Messages ......................................................................................................... 100
Interpreting POST diagnostic front panel LEDs ................................................................................................ 106
vii
11 Password Security and Resetting CMOS ..................................................................................................... 109
Establishing a Setup or Power-on password .................................................................................................... 109
Resetting the Setup and Power-on password .................................................................................................. 110
Clearing and resetting the CMOS ....................................................................................................................... 110
Appendix A Power Cord Set Requirements ...................................................................................................... 112
General requirements ....................................................................................................................................... 112
Japanese Power Cord Requirements ................................................................................................................ 112
Country-specific requirements ......................................................................................................................... 113
Appendix B Specifications ............................................................................................................................. 114
Specifications .................................................................................................................................................... 114
Index ........................................................................................................................................................... 115
viii
1 Product Features
Overview
The HP All-in-One Business PC offers the following features:
●
Integrated All-in-One form factor
●
18.5-inch diagonal widescreen HD LED-backlight anti-glare LCD Display
●
Adjustable tilt stand
●
HP 205 G1 models: AMD E1-2500 processor featuring AMD Radeon HD 8240 Integrated Graphics
●
HP 18 models: Intel Pentium J2900 or Intel Celeron J1800 processor
●
Integrated Realtek RTL8166EH-CG 10/100 Ethernet Controller
●
Wireless connectivity - HP WLAN/Bluetooth Combo NIC 802.11b/g/n Mini Card
●
Integrated 1.0 MP 720p low-light webcam with microphone array
●
Integrated HD audio card and stereo speakers
●
Up to 8 GB of DDR3 SDRAM supported
●
Up to 2-TB hard drive
●
Optional HP Slim-Tray SuperMulti DVD+RW SATA 8X Optical Drive
●
7-in-1 Media Card Reader
●
USB Keyboard and Mouse
●
ENERGY STAR® (for Windows OS only)
●
EPEAT® Silver certification
Where HP registers commercial desktop products. See
your country.
http://www.epeat.net for registration status in
Overview 1
Front components
Component Component
1 Internal microphones (2) 3 Webcam
2 Webcam light 4 Speaker
Top components
Component
5 Power button
2 Chapter 1 Product Features
Right components
Component
6 Optical drive
Right components 3
Left components
Component Component
7 Drive light 10 Audio-in (microphone) jack
8 Memory card reader 11 Audio-out (headphone) jack
9 USB 3.0 ports (2)
4 Chapter 1 Product Features
Rear components
Component Component
12 Power connector 14 USB ports (4)
13 RJ-45 (network) jack 15 Audio line-out jack
Rear components 5
2 Activating and Customizing the Software
Activating and customizing the software in Windows 8
Additional information is available in online help after you activate the operating system.
NOTE: Be sure there is a 10.2 cm (4 inch) clearance at the back of the unit and above the monitor to permit
the required airflow.
Activating the Windows Operating System
The first time you turn on the computer, the operating system is set up and activated automatically. This
process takes about 5 to 10 minutes. Carefully read and follow the instructions on the screen to complete the
activation.
We recommend that you register your computer with HP during operating system set up so you can receive
important software updates, facilitate support questions, and sign up for special offers. You can also register
your computer with HP using the Register with HP app on the Start screen.
CAUTION: After the activation process has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE PROCESS IS
COMPLETE. Turning off the computer during the activation process may damage the software that runs the
computer or prevent its proper installation.
Downloading Windows 8 updates
Microsoft may release updates to the operating system. To help keep the computer running optimally, HP
recommends checking for the latest updates during the initial installation and periodically throughout the life
of the computer.
Run Windows Update as soon as possible after you set up your computer.
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings > Windows Update.
3. Run Windows Update monthly thereafter.
Customizing the monitor display
You can customize display settings for Windows 8 separately for the Start screen and the Desktop.
To customize the Start screen:
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings.
3. Click Personalize to change the display settings.
To customize the Desktop:
1. Click the Desktop app on the Start screen.
2. Right-click on the desktop, and then click Personalize to change display settings.
6 Chapter 2 Activating and Customizing the Software
3 Illustrated parts catalog
Boards and memory
Item Component Spare part number
(1) System board (includes processor and replacement thermal material):
For use in HP 205 G1 models:
For use in HP 18 models:
(2) Converter board 751276-001
(3) Power button board 752342-001
WLAN module (802.11 b/g/n 1x1 WiFi + BT4.0) 701399-001
Webcam 752344-001
●
AMD E1-2500 APU for use in models without Windows 8.1 751275-001
●
AMD E1-2500 APU for use in models with Windows 8.1 Standard 751275-501
●
AMD E1-2500 APU for use in models with Windows 8.1 Professional 751275-601
●
Intel Pentium J2900 processor for use in models without Windows 8.1 782107-001
●
Intel Pentium J2900 processor for use in models with Windows 8.1 Standard 782107-501
●
Intel Pentium J2900 processor for use in models with Windows 8.1 Professional 782107-601
●
Intel Celeron J1800 processor for use in models without Windows 8.1 782108-001
●
Intel Celeron J1800 processor for use in models with Windows 8.1 Standard 782108-501
●
Intel Celeron J1800 processor for use in models with Windows 8.1 Professional 782108-601
Memory module (PC3L-12800, 1666-MHz, DDR3):
Boards and memory 7
Item Component Spare part number
4-GB 689373-001
2-GB 689372-001
Miscellaneous parts
Item Component Spare part number
(1) Speakers 752343-001
(2) Hard drive screw bumpers 752334-001
(3) Fan 752335-001
(4) Front bezel 752331-001
Rear cover 752332-001
Display panel, 18.5-inch, anti-glare , LED N-ZBD, 200 nits 752345-001
Stand 752333-001
AC adapter (65 W) 752346-001
Mouse, USB 719901-001
Keyboards, unbranded
French Canadian 709695-121
International English 709695-L31
United States 729339-001
Chinese 729339-AA1
Latin American Spanish 537924-161
8 Chapter 3 Illustrated parts catalog
Mass storage devices
Item Spare part number
Hard drives
2-TB, 7200 rpm 616608-001
750-MB, 7200 rpm 639363-001
500-MB, 7200 rpm 636929-001
Optical drive
DVD±RW drive 657958-001
Cables
Component Spare part number
Backlight cable 752330-001
Power button board cable 752336-001
Webcam cable 752337-001
Hard drive cable assembly 752338-001
Optical drive cable assembly 752339-001
LVDS (display) cable 752340-001
Converter board cable 752341-001
Sequential part number listing
Spare part
number
537924-161 Keyboard, USB, unbranded, Latin American Spanish
616608-001 Hard drive, 2-TB, 7200 rpm hard drive
636929-001 Hard drive, 500-GB, 7200 rpm hard drive
639363-001 Hard drive, 750-GB, 7200 rpm hard drive
657958-001 DVD±RW drive
689372-001 2-GB memory module (PC3-12800; SODOMM)
689373-001 4-GB memory module (PC3-12800; SODOMM)
701399-001 WLAN module (802.11b/g/n+Bluetooth 4.0)
709695-121 Keyboard, USB, unbranded, French Canadian
Description
709695-L31 Keyboard, USB, unbranded, International English
719901-001 Mouse, USB
Mass storage devices 9
Spare part
number
729339-001 Keyboard, USB, unbranded, United States
729339-AA1 Keyboard, USB, unbranded, Chinese
751275-001 System board for use in HP 205 G1 models (includes AMD E1-2500 APU) without Windows 8 (includes replacement
751275-501 System board for use in HP 205 G1 models (includes AMD E1-2500 APU) with Windows 8 Standard (includes
751275-601 System board for use in HP 205 G1 models (includes AMD E1-2500 APU) with Windows 8 Professional (includes
751276-001 Converter board
752330-001 Backlight cable
752331-001 Front bezel
752332-001 Rear cover
752333-001 Stand assembly
752334-001 Hard drive screw bumpers
752335-001 Fan
752336-001 Power button board cable
Description
thermal material)
replacement thermal material)
replacement thermal material)
752337-001 Webcam cable
752338-001 Hard drive cable assembly
752339-001 Optical drive cable assembly
752340-001 LVDS (display) cable
752341-001 Converter board cable
752342-001 Power button board
752343-001 Speakers
752344-001 Webcam module
752345-001 Display panel, 18.5-inch, anti-glare , LED N-ZBD, 200 nits
752346-001 AC adapter, 65 W
782107-001 System board with an Intel Pentium J2900 processor for use in HP 18 models without Windows 8.1
782107-501 System board with an Intel Pentium J2900 processor for use in HP 18 models with Windows 8.1 Standard
782107-601 System board with an Intel Pentium J2900 processor for use in HP 18 models with Windows 8.1 Professional
782108-001 System board with an Intel Celeron J1800 processor for use in HP 18 models without Windows 8.1
782108-501 System board with an Intel Celeron J1800 processor for use in HP 18 models with Windows 8.1 Standard
782108-601 System board with an Intel Celeron J1800 processor for use in HP 18 models with Windows 8.1 Professional
10 Chapter 3 Illustrated parts catalog
4 Serial ATA (SATA) drive guidelines and
routine care 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.
NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA (PATA)
drives are supported.
SATA hard drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage differential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for configuring drive N/A
Data transfer rate 6.0 Gb/s
SATA hard drive cables
SATA data cable
Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s
drives.
Current HP desktop products ship with SATA 3.0 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.
SATA hard drives 11
SMART ATA drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers
have built-in drive failure prediction that warns the user or network administrator of an impending failure or
crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as
reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is
imminent, it generates a fault alert.
Electrostatic discharge information
A sudden discharge of static electricity from your finger 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 affected 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.
Generating static
The following table shows that:
●
Different activities generate different amounts of static electricity.
●
Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs* from plastic tube
Removing DIPs* from vinyl tray
Removing DIPs* from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
*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.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
12 Chapter 4 Serial ATA (SATA) drive guidelines and routine care and disassembly preparation
●
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.
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 fit 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
Carbon-loaded plastic
Metallized laminate
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 off power and input signals before inserting and removing connectors or test equipment.
●
Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.
●
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
●
Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
1,500
7,500
15,000
Electrostatic discharge information 13
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
●
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 monitor 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 removed.
●
Do not place computers so near each other that they are subject to each other’s re-circulated or
preheated air.
●
Keep liquids away from the computer and keyboard.
●
Never cover the ventilation slots on the monitor with any type of material.
●
Install or enable power management functions of the operating system or other software, including
sleep states.
14 Chapter 4 Serial ATA (SATA) drive guidelines and routine care and disassembly preparation
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.
Cleaning the computer case
Follow all safety precautions in General cleaning safety precautions on page 15 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 15 before cleaning the
keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
computer case on page 15.
When cleaning debris from under the keys, review all rules in
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.
Cleaning the
General cleaning safety precautions on page 15
Routine care 15
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
fibers or dirt in confined 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 monitors. 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 monitor.
●
To clean the monitor body follow the procedures in
Cleaning the mouse
Before cleaning the mouse, ensure that the power to the computer is turned off.
●
Clean the mouse ball by first 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
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 (HP screwdriver with bits, PN 161946-001)
●
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●
Phillips #2 screwdriver
●
Diagnostics software
Cleaning the computer case on page 15.
Cleaning the computer case on page 15.
●
HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper-resistant
bits (Smart Cover FailSafe Key, PN 166527-002)
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and
may be of different 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: As each subassembly is removed from the computer, it should be placed away from the work
area to prevent damage.
16 Chapter 4 Serial ATA (SATA) drive guidelines and routine care and disassembly preparation
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.
●
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 off 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 12
●
Do not use excessive force when inserting a drive.
●
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors 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 fire and chemical burn if the battery
is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire,
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
5 Removal and Replacement Procedures All-
in One (AIO) Chassis
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
Pro 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. Disconnect all other attached cables from the back of 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 screen surface from scratches or other damage.
WARNING! Beware of sharp edges inside the chassis.
18 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
Rear cover
Description Spare part number
Rear cover 752332-001
The computer has one main rear cover that allows access to internal components.
To remove the rear cover:
1. Prepare the computer for disassembly (see
2. On the bottom of the computer, turn the two captive screws (1) to the left until they click and release
the rear cover.
3. Lift up on the bottom of the rear cover to disengage it (2), and then lift the rear cover off the computer
(3).
To replace the rear cover, reverse the removal procedures.
Preparing to disassemble the computer on page 18).
Rear cover 19
Stand assembly
Description Spare part number
Stand assembly 752333-001
The stand is secured with four Torx screws. You must remove the rear cover to remove the stand.
To remove the stand:
1. Prepare the computer for disassembly (see
2. Remove the rear cover (see
3. On the side of the rear cover, in the order stamped into the stand, remove the four Torx screws that
secure the stand to the rear cover (1).
4. Remove the stand from the rear cover (2).
Rear cover on page 19).
Preparing to disassemble the computer on page 18).
To replace the stand, reverse the removal procedures.
20 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
Webcam module
Description Spare part number
Webcam module 752344-001
On products that ship with a webcam module, the module is located at the top of the computer beneath the
top panel. It is secured with two silver Phillips screws and has one connector.
The webcam module is optional.
To remove the webcam module:
1. Prepare the computer for disassembly (see
2. Remove the rear cover (see
3. Press the tabs on each side of the webcam module and lift it up away from the tabs.
4. Rotate the assembly to gain access to the connector on the module, and then disconnect the cable from
the module.
5. To remove the module from the bracket, remove the two Phillips screws that secure the module, and
then separate the module from the bracket.
Rear cover on page 19).
Preparing to disassemble the computer on page 18).
Webcam module 21
To install a webcam module, reverse the removal procedures.
Replacing drives
Replacing the hard disc drive with a 3.5-inch drive or a 2.5-inch drive
Description Spare part number
2-TB, 7200 rpm hard drive 616608-001
750-GB, 7200 rpm hard drive 639363-001
500-GB, 7200 rpm hard drive 636929-001
Hard drive screw bumper 752334-001
The hard disc drive is located on the left side of the computer (when viewed from behind). The drive is housed
in a removable cage.
To install a 2.5-inch drive, you need a drive adapter.
The hard drive data cable connects to the SATA0 and SATA PWR0 system board connectors.
1. Prepare the computer for disassembly (see
2. Remove the rear cover (see
Rear cover on page 19).
Preparing to disassemble the computer on page 18).
22 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
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