HP EliteDesk 800 G1 Service and Maintain

Maintenance & Service Guide
HP EliteDesk 800 G1 Desktop Mini HP ProDesk 600 G1 Desktop Mini
© Copyright 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 Hewlett-Packard Company.
Maintenance & Service Guide
First Edition (April 2014)
Document Part Number: 756964-001
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.
http://www.microsoft.com for details.
See
This computer may require upgraded and/ or separately purchased hardware and/or a DVD drive to install the Windows 7 software and take full advantage of Windows 7 functionality. See
http://windows.microsoft.com/en-us/ windows7/get-know-windows-7 for details.
Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not
place the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950).
iii
iv Safety warning notice
Table of contents
1 Product features ............................................................................................................... 1
Standard configuration features ................................................................................................. 1
Front panel components ............................................................................................................ 2
Rear panel components (EliteDesk 800) ...................................................................................... 3
Rear panel components (ProDesk 600) ....................................................................................... 4
Serial number location .............................................................................................................. 5
2 Activating and Customizing the Software .......................................................................... 6
Activating and customizing the software in Windows 7 ................................................................ 6
Activating the Windows operating system .................................................................... 6
Downloading Windows 7 updates .............................................................................. 7
Installing or upgrading device drivers .......................................................................... 7
Customizing the monitor display ................................................................................. 7
Activating and customizing the software in Windows 8 ................................................................ 7
Activating the Windows Operating System ................................................................... 7
Downloading Windows 8 updates .............................................................................. 8
Customizing the monitor display ................................................................................. 8
3 Routine care, SATA drive guidelines, and disassembly preparation ................................... 9
Electrostatic discharge information ............................................................................................. 9
Generating static .................................................................................................... 10
Preventing electrostatic damage to equipment ............................................................. 10
Personal grounding methods and equipment .............................................................. 11
Grounding the work area ......................................................................................... 11
Recommended materials and equipment .................................................................... 11
Operating guidelines .............................................................................................................. 12
Routine care .......................................................................................................................... 13
General cleaning safety precautions .......................................................................... 13
Cleaning the Computer Case .................................................................................... 13
Cleaning the keyboard ............................................................................................ 13
Cleaning the monitor ............................................................................................... 14
v
Cleaning the mouse ................................................................................................. 14
Service considerations ............................................................................................................ 14
Tools and software Requirements .............................................................................. 14
Screws ................................................................................................................... 15
Cables and connectors ............................................................................................ 15
Hard Drives ............................................................................................................ 15
Lithium coin cell battery ............................................................................................ 16
SATA hard drives ................................................................................................................... 16
SATA hard drive cables .......................................................................................................... 17
SATA data cable ..................................................................................................... 17
SMART ATA drives ................................................................................................................. 17
Cable management ................................................................................................................ 17
4 Illustrated parts catalog .................................................................................................. 18
Misc parts ............................................................................................................................. 20
Cables .................................................................................................................................. 21
Drives ................................................................................................................................... 22
Sequential Part Number Listing ................................................................................................ 22
5 Removal and Replacement Procedures ...................................... 25
Preparing to disassemble the computer ..................................................................................... 25
Access panel ......................................................................................................................... 26
Changing from desktop to tower configuration .......................................................................... 27
Hard drive ............................................................................................................................ 28
Speaker ................................................................................................................................ 32
Front bezel ............................................................................................................................ 34
Memory ................................................................................................................................ 35
SODIMMs .............................................................................................................. 35
DDR3-SDRAM SODIMMs ......................................................................................... 35
Populating SODIMM sockets .................................................................................... 36
Installing SODIMMs ................................................................................................ 37
Replacing the battery .............................................................................................................. 40
Heat sink .............................................................................................................................. 43
Processor .............................................................................................................................. 44
Fan ...................................................................................................................................... 46
Drive cage ............................................................................................................................ 47
WLAN module ...................................................................................................................... 49
M.2 Solid-State Drive .............................................................................................................. 51
External connection antennas (select models only) ...................................................................... 53
System board ........................................................................................................................ 57
WLAN antennas .................................................................................................................... 60
vi
6 Computer Setup (F10) Utility ........................................................................................... 64
Computer Setup (F10) Utilities ................................................................................................. 64
Using Computer Setup (F10) Utilities .......................................................................... 65
Computer Setup—File .............................................................................................. 66
Computer Setup—Storage ........................................................................................ 67
Computer Setup—Security ........................................................................................ 69
Computer Setup—Power .......................................................................................... 73
Computer Setup—Advanced .................................................................................... 74
Recovering the Configuration Settings ....................................................................................... 77
7 HP PC Hardware Diagnostics .......................................................................................... 78
Why run HP PC Hardware Diagnostics – UEFI ........................................................................... 78
How to access and run HP PC Hardware Diagnostics - UEFI ........................................................ 78
Downloading HP PC Hardware Diagnostics to a USB device ....................................................... 79
8 Troubleshooting Without Diagnostics .............................................................................. 80
Safety and Comfort ................................................................................................................ 80
Before You Call for Technical Support ...................................................................................... 80
Helpful Hints .......................................................................................................................... 81
Solving General Problems ....................................................................................................... 83
Solving Power Problems .......................................................................................................... 87
Solving Hard Drive Problems ................................................................................................... 89
Solving Media Card Reader Problems ...................................................................................... 92
Solving Display Problems ........................................................................................................ 94
Solving Audio Problems .......................................................................................................... 99
Solving Printer Problems ........................................................................................................ 101
Solving Keyboard and Mouse Problems .................................................................................. 103
Solving Hardware Installation Problems .................................................................................. 105
Solving Network Problems .................................................................................................... 107
Solving Memory Problems ..................................................................................................... 111
Solving Processor Problems ................................................................................................... 113
Solving CD-ROM and DVD Problems ...................................................................................... 114
Solving USB Flash Drive Problems .......................................................................................... 116
Solving Front Panel Component Problems ................................................................................ 117
Solving Internet Access Problems ............................................................................................ 118
Solving Software Problems .................................................................................................... 119
Contacting Customer Support ................................................................................................ 121
vii
9 Backup and Recovery ................................................................................................... 122
Restoring and recovering in Windows 7 ................................................................................. 122
System Restore ...................................................................................................... 122
System Recovery ................................................................................................... 123
System Recovery when Windows is responding ......................................... 123
System Recovery when Windows is not responding .................................... 124
System recovery using recovery media ...................................................... 124
Creating recovery media .......................................................... 125
Using recovery media .............................................................. 126
Backup and recovery in Windows 8 ....................................................................................... 127
Backing up your information ................................................................................... 127
Performing a system recovery ................................................................................. 128
Using the Windows recovery tools ........................................................... 128
Using f11 recovery tools ......................................................................... 129
Using Windows 8 operating system media (purchased separately) ............... 129
10 POST Error Messages .................................................................................................. 131
POST Numeric Codes and Text Messages ............................................................................... 132
Interpreting POST diagnostic front panel LEDs .......................................................................... 140
11 Password Security and Resetting CMOS ...................................................................... 143
Establishing a Setup or Power-on password ............................................................................. 144
Resetting the Setup and Power-on password ............................................................................ 145
Clearing and resetting the CMOS .......................................................................................... 146
Appendix A Power Cord Set Requirements ...................................................................... 148
General requirements ........................................................................................................... 148
Japanese Power Cord Requirements ....................................................................................... 148
Country-specific requirements ................................................................................................ 149
Appendix B Statement of Volatility–HP EliteDesk 800 G1 ................................................. 150
Appendix C Statement of Volatility–HP ProDesk 600 G1 .................................................. 152
Appendix D Specifications ............................................................................................... 154
Index ............................................................................................................................... 156
viii

1 Product features

Standard configuration features

Features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only).
NOTE: This computer model can be used in a tower orientation or a desktop orientation. The tower
stand is sold separately.
Standard configuration features
1

Front panel components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.
1 Dual-State Power Button 4 USB 3.0 Port - Charging
2 Hard Drive Activity Light 5 Microphone/Headphone Connector
3 USB 3.0 Port 6 Headphone Connector
NOTE: The USB 3.0 Port - Charging also provides current to charge a device such as a Smart Phone. The
charging current is available whenever the power cord is plugged into the system, even when the system is off.
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to the
on page 140 to interpret the code.
Interpreting POST diagnostic front panel LEDs
2 Chapter 1 Product features

Rear panel components (EliteDesk 800)

1 DisplayPort Monitor Connectors 4 USB 3.0 Ports (blue)
2
3
VGA Monitor Connector 5 RJ-45 Network Connector
Line-Out Connector for powered audio devices (green)
6 Power Cord Connector
Rear panel components (EliteDesk 800)
3

Rear panel components (ProDesk 600)

1 DisplayPort Monitor Connectors 5 USB 3.0 Ports (blue)
2
3
4
VGA Monitor Connector 6 RJ-45 Network Connector
Line-Out Connector for powered audio devices (green)
USB 2.0 Ports (black)
7 Power Cord Connector
4 Chapter 1 Product features

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance.
Serial number location
5
2 Activating and Customizing the
Software
NOTE: This chapter provides information for both Windows 7 and Windows 8.

Activating and customizing the software in Windows 7

If your computer was not shipped with a Windows® operating system, some portions of this documentation do not apply. Additional information is available in online help after you activate the operating system.
CAUTION: Do not add optional hardware or third-party devices to the computer until the operating
system is successfully activated. Doing so may cause errors and prevent the operating system from installing properly.
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 setup so you can receive important software updates, facilitate support questions, and sign up for special offers.
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.
NOTE: If the computer shipped with more than one operating system language on the hard drive, the
activation process could take up to 60 minutes.
6 Chapter 2 Activating and Customizing the Software

Downloading Windows 7 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.
1. To set up your Internet connection, click Start > Internet Explorer and follow the instructions
on the screen.
2. After an Internet connection has been established, click the Start > All Programs > Windows
Update.
3. Run Windows Update monthly thereafter.

Installing or upgrading device drivers

When installing optional hardware devices after the operating system installation is complete, you must also install the drivers for each of the devices.
In Windows 7, if prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse button in the dialog box to locate the i386 folder. This action points the operating system to the appropriate drivers.
Obtain the latest support software, including support software for the operating system, from
http://www.hp.com/support. Select your country and language, select Download drivers and
software (and firmware), enter the model number of the computer, and press Enter.

Customizing the monitor display

If you wish, you can select or change the monitor refresh rates, screen resolution, color settings, font sizes, and power management settings.
For more information, refer to the online documentation provided with the graphics controller utility or the documentation that came with your monitor.
Right-click on the Windows desktop, then click Personalize to change display settings.

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.
Activating and customizing the software in Windows 8
7
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.
8 Chapter 2 Activating and Customizing the Software
3 Routine 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 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.
Electrostatic discharge information
9

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.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
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.
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
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.
10 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 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.
1,500
7,500
15,000
Use field 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
Electrostatic discharge information
11
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 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.
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
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.

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 13 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 13 before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
Computer Case on page 13.
When cleaning debris from under the keys, review all rules in
on page 13 before following these procedures:
General cleaning safety precautions
Routine care
Cleaning the
13
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 fibers or dirt in confined areas. Allow the parts to air dry before reassembly.

Cleaning the monitor

Wipe the monitor 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
Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)
Cleaning the Computer Case on page 13.
Cleaning the Computer Case on page 13.
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
Phillips #2 screwdriver
14 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
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 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: Metric screws have a black finish. U.S. screws have a silver finish 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.
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
Do not use excessive force when inserting a drive.
Electrostatic discharge information on page 9
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic
fields such as monitors or speakers.
Service considerations
15

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.

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 3.0 Gb/s
16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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.

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.

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.
SATA hard drive cables
17

4 Illustrated parts catalog

NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to then follow the on-screen instructions.
Item Description Spare part number
(1) Access panel 768428-001
(2) Front bezel
For use in EliteDesk 800 models 768422-001
For use in ProDesk 600 models 768742-001
18 Chapter 4 Illustrated parts catalog
http://partsurfer.hp.com, select your country or region, and
Item Description Spare part number
Stand 768430-001
Power supply, 65W 751889-001
(3) System board (includes replacement thermal material)
For use in EliteDesk 800 models:
For use in ProDesk 800 models:
Memory module, PC3-12800, 1666-MHz
4 GB 689373-001
8 GB 689374-001
Processors (include replacement thermal material)
Intel Core i7 4785T processor, 2.2 GHz, 8-MB L3 cache, 35W 773230-001
Intel Core i7 4765T processor, 2.0 GHz, 8-MB L3 cache, 35W 754000-001
Intel Core i5 4590T processor, 2.0 GHz, 6-MB L3 cache, 35W 773228-001
For use in models without the-Windows 8 operating system 746632-001
For use in models with Windows 8 Standard 746632-501
For use in models with Windows 8 Professional 746632-601
For use in models without the-Windows 8 operating system 746722-001
For use in models with Windows 8 Standard 746722-501
For use in models with Windows 8 Professional 746722-601
For use in models with NetClone operating system 765381-001
Intel Core i5 4570T processor, 2.9 GHz, 4-MB L3 cache, 35W 753998-001
Intel Core i3 4330T processor, 3.0 GHz, 4-MB L3 cache, 35W 753995-001
Intel Core i3 4150T processor, 3.0 GHz, 3-MB L3 cache, 35W (ProDesk 600 models
only)
Intel Core i3 4130T processor, 2.9 GHz, 3-MB L3 cache, 35W 757416-001
Intel Pentium G3440T processor, 2.8 GHz, 3-MB L3 cache, 35W 773233-001
Intel Pentium G3420T processor, 2.7 GHz, 3-MB L3 cache, 35W 763217-001
Intel Pentium G3240T processor, 2.7 GHz, 3-MB L3 cache, 35W 773232-001
Intel Pentium G3220T processor, 2.6 GHz, 3-MB L3 cache, 35W 763216-001
Intel Celeron G1840T processor, 2.5 GHz, 2-MB L3 cache, 35W 773225-001
Intel Celeron G1820T processor, 2.4 GHz, 2-MB L3 cache, 35W 753994-001
Keyboards
USB, Smartcard, CCID 701671-xx1
USB 724720-xx1
773226-001
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Item Description Spare part number
PS2, washable 700510-xx1
Wireless keyboard and dongle for use in Brazil 724722-201
Wireless keyboard, mouse, and dongle 730323-xx1

Misc parts

Description Spare part number
(1) Heat sink 768426-001
(2) Fan 768424-001
(3) Speaker 762420-001
(4) LED cover 768425-001
Hood sensor assembly 768429-001
Antenna cover 768433-001
Grommet for use mounting hard drives 594220-001
HP Ultraslim Keyed Cable Lock 703372-001
20 Chapter 4 Illustrated parts catalog
Description Spare part number
WLAN modules:
HP WLAN 802.11 a/b/g/n, 2x2 768423-001
HP WLAN 802.11 a/g/n, for use only in Indonesia 750552-001
Mouse
USB, optical 674316-001
Wireless 674317-001
USB, laser 674318-001
Washable 724795-001

Cables

Description Spare part number
(1) SATA power cable 768427-001
Wireless antenna cables 768432-001
Adapter, DisplayPort to VGA 632484-001
Adapter, DisplayPort to DVI 662723-001
Adapter, DisplayPort to HDMI 617450-001
DisplayPort cable 487562-001
USB to serial converter 407185-001
Cables
21

Drives

Description Spare part number
Hard drives/solid-state/M.2 drives:
1 TB, 7200 rpm, hard drive, 2.5-inch, SSHD 724937-001
500 GB, 7200 rpm hard drive, 2.5-inch 745135-001
500 GB, 7200 rpm, hard drive, 2.5-inch, SSHD 724938-001
500 GB, 7200 rpm hard drive, 2.5-inch, SED 745136-001
256 GB solid-state drive (SSD), self-encrypting (SED) 746141-001
180 GB solid-state drive (SSD), SATA 6.0, MLC 754076-001
128 GB solid-state drive (SSD), M.2 757990-001
128 GB solid-state drive (SSD) 665961-001
128 GB solid-state drive (SSD), Self-encrypting Drive (SED), SATA 6.0 746140-001
120 GB solid-state drive (SSD), SATA 6.0, MLC 756459-001

Sequential Part Number Listing

Spare part number
407185-001 USB to serial converter
487562-001 DisplayPort cable
594220-001 Grommet for use mounting hard drives
617450-001 Display Port (DP) to HDMI
632484-001 Display Port (DP) to VGA
662723-001 Display Port (DP) to DVI
665961-001 128 GB solid-state drive (SSD)
674316-001 Mouse, USB, optical
674317-001 Mouse, wireless
674318-001 Mouse, USB, laser
689373-001 4-GB memory module, PC3-12800, 1666-MHz
689374-001 8-GB memory module, PC3-12800, 1666-MHz
Description
700510-xx1 Keyboard, PS2, washable
701671-xx1 Keyboard, USB, Smartcard, CCID
703372-001 HP Ultraslim Keyed Cable Lock
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