HP EliteDesk 700 G1 Maintenance and Service Guide

Maintenance and Service Guide

HP EliteDesk 700 G1 Small Form Factor

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.

First Edition (August 2014)

Document Part Number: 789433-001

Product notice

This guide describes features that are common to most models. Some features may not be available on your computer.

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

Front panel components ............................................................................................................ 2

Rear panel components ............................................................................................................ 3

Serial number location .............................................................................................................. 4

2 Activating and Customizing the Software .......................................................................... 5

Activating and customizing the software in Windows 7 ................................................................ 5

Activating the Windows operating system .................................................................... 5

Downloading Windows 7 updates .............................................................................. 6

Installing or upgrading device drivers .......................................................................... 6

Customizing the monitor display ................................................................................. 6

Activating and customizing the software in Windows 8 ................................................................ 6

Activating the Windows Operating System ................................................................... 6

Downloading Windows 8 updates .............................................................................. 7

Customizing the monitor display ................................................................................. 7

3 Illustrated parts catalog .................................................................................................... 8

Small Form Factor (SFF) chassis spare parts ................................................................................. 8

Computer major components ...................................................................................... 8

Cables ..................................................................................................................... 9

Miscellaneous parts ................................................................................................. 10

Misc boards ........................................................................................................... 11

Mass storage devices .............................................................................................. 11

4 Routine care, SATA drive guidelines, and disassembly preparation ................................. 13

Electrostatic discharge information ........................................................................................... 13

Generating static .................................................................................................... 14

Preventing electrostatic damage to equipment ............................................................. 14

Personal grounding methods and equipment .............................................................. 15

Grounding the work area ......................................................................................... 15

Recommended materials and equipment .................................................................... 15

Operating guidelines .............................................................................................................. 16

Routine care .......................................................................................................................... 17

General cleaning safety precautions .......................................................................... 17

Cleaning the Computer Case .................................................................................... 17

Cleaning the keyboard ............................................................................................ 17

Cleaning the monitor ............................................................................................... 18

Cleaning the mouse ................................................................................................. 18

Service considerations ............................................................................................................ 18

Power supply fan .................................................................................................... 18

Tools and software Requirements .............................................................................. 19

Screws ................................................................................................................... 19

Cables and connectors ............................................................................................ 19

Hard Drives ............................................................................................................ 19

Lithium coin cell battery ............................................................................................ 20

SATA hard drives ................................................................................................................... 20

SATA hard drive cables .......................................................................................................... 21

SATA data cable ..................................................................................................... 21

SMART ATA drives ................................................................................................................. 21

Cable management ................................................................................................................ 21

5 Removal and replacement procedures: Small Form Factor ............................................... 22

Preparation for disassembly .................................................................................................... 22

Access panel ......................................................................................................................... 23

Front bezel ............................................................................................................................ 24

Front bezel security ................................................................................................................ 25

Bezel blanks .......................................................................................................................... 27

Memory ................................................................................................................................ 28

DIMMs .................................................................................................................. 28

DDR3-SDRAM DIMMs .............................................................................................. 28

Populating DIMM sockets ......................................................................................... 28

Installing DIMMs ..................................................................................................... 29

Expansion card ...................................................................................................................... 31

System board connections ....................................................................................................... 35

Drives ................................................................................................................................... 36

Drive positions ........................................................................................................ 38

Removing a 3.5-inch device ..................................................................................... 39

Installing a 3.5-inch device ....................................................................................... 40

Removing a slim optical drive ................................................................................... 42

Installing a slim optical drive .................................................................................... 43

Removing and replacing a 3.5-inch hard drive ........................................................... 44

Removing a 2.5-inch hard drive ................................................................................ 47

Installing a 2.5-inch hard drive ................................................................................. 47

Power supply ......................................................................................................................... 49

Fan duct ............................................................................................................................... 52

Smart Cover Lock (solenoid lock) .............................................................................................. 53

Hood sensor .......................................................................................................................... 56

Cable routing ........................................................................................................................ 57

Front I/O assembly ................................................................................................................ 58

Power switch assembly ........................................................................................................... 60

Speaker ................................................................................................................................ 62

Fan sink ................................................................................................................................ 63

Processor .............................................................................................................................. 64

System board ........................................................................................................................ 66

System board callouts ............................................................................................................. 68

Changing from desktop to tower configuration .......................................................................... 70

6 Computer Setup (F10) Utility ........................................................................................... 71

Computer Setup (F10) Utilities ................................................................................................. 71

Using Computer Setup (F10) Utilities .......................................................................... 72

Computer Setup—File .............................................................................................. 73

Computer Setup—Storage ........................................................................................ 74

Computer Setup—Security ........................................................................................ 76

Computer Setup—Power .......................................................................................... 81

Computer Setup—Advanced .................................................................................... 83

Recovering the Configuration Settings ....................................................................................... 85

7 Troubleshooting without diagnostics ............................................................................... 86

Safety and comfort ................................................................................................................. 86

Before you call for technical support ......................................................................................... 86

Helpful hints .......................................................................................................................... 87

Solving general problems ........................................................................................................ 89

Solving power problems ......................................................................................................... 93

Solving hard drive problems .................................................................................................... 95

Solving media card reader problems ........................................................................................ 98

Solving display problems ...................................................................................................... 100

Solving audio problems ........................................................................................................ 105

Solving printer problems ....................................................................................................... 107

Solving keyboard and mouse problems .................................................................................. 109

Solving Hardware Installation Problems .................................................................................. 111

Solving Network Problems .................................................................................................... 113

Solving memory problems ..................................................................................................... 117

Solving processor problems ................................................................................................... 119

vii

Solving CD-ROM and DVD problems ...................................................................................... 120

Solving USB flash drive problems ........................................................................................... 122

Solving front panel component problems ................................................................................. 123

Solving Internet access problems ............................................................................................ 123

Solving software problems .................................................................................................... 125

8 POST error messages .................................................................................................... 127

POST numeric codes and text messages .................................................................................. 128

Interpreting POST diagnostic front panel LEDs and audible codes .............................................. 136

9 Password security and resetting CMOS ......................................................................... 140

Establishing a Setup or Power-on password ............................................................................. 141

Resetting the Setup and Power-on password ............................................................................ 141

Changing a Setup or Power-On password .............................................................................. 142

Deleting a Setup or Power-On password ................................................................................. 143

Resetting the password jumper ............................................................................................... 143

Clearing and resetting the CMOS .......................................................................................... 145

10 HP PC Hardware Diagnostics ...................................................................................... 147

Why run HP PC Hardware Diagnostics ................................................................................... 147

How to access and run HP PC Hardware Diagnostics ............................................................... 147

Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 148

11 System backup and recovery ...................................................................................... 149

Backing up, restoring, and recovering in Windows 8 ............................................................... 149

Creating recovery media and backups .................................................................... 150

Restoring and recovering using Windows 8 tools ...................................................... 151

Using Windows 8 Refresh ....................................................................... 151

Using Windows 8 Reset .......................................................................... 152

Recovery using the Windows 8 recovery USB flash drive ............................ 153

Recovery using Windows 8 operating system media (purchased separately) . 154

Backing up, restoring, and recovering in Windows 7 ............................................................... 155

Creating recovery media ........................................................................................ 155

Creating recovery media using HP Recovery Manager (select models only) ... 156 Creating recovery discs with HP Recovery Disc Creator (select models only) . . 157

Creating recovery discs ............................................................ 157

Backing up your information .................................................................... 158

System Restore ...................................................................................................... 158

System Recovery ................................................................................................... 159

System Recovery when Windows is responding ......................................... 159

viii

System Recovery when Windows is not responding .................................... 160

System Recovery using recovery media (select models only) ......................... 160

Using HP Recovery Disc operating system discs (select models only) ............. 161

Appendix A Battery replacement ..................................................................................... 163

Appendix B Statement of Volatility .................................................................................. 166

Appendix C Power cord set requirements ........................................................................ 168

General requirements ........................................................................................................... 168

Japanese power cord requirements ........................................................................................ 168

Country-specific requirements ................................................................................................ 169

Appendix D Specifications ............................................................................................... 170

Index ............................................................................................................................... 172

1 Product 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: The computer can be used in a tower orientation or a desktop orientation.

Front panel components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.

1 Slim Optical Drive (optional) 5 Headphone Connector

2 USB 2.0 Ports (black) 6 Dual-State Power Button

3 USB 3.0 Ports (blue) 7 Hard Drive Activity Light

4 Microphone/Headphone Connector 8 3.5-inch Media Card Reader (optional)

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

audible codes on page 136 to interpret the code.

Interpreting POST diagnostic front panel LEDs and

2 Chapter 1 Product features

Rear panel components

1 PS/2 Mouse Connector (green) 7 PS/2 Keyboard Connector (purple)

6 Power Cord Connector

NOTE: An optional second serial port and an optional parallel port are available from HP.

When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use the connector for a line-in device or a microphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.

When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the integrated graphics on the system board may be used at the same time. However, for such a configuration, only the display connected to the discrete graphics card will display POST messages.

The system board graphics can be disabled by changing settings in Computer Setup.

RJ-45 Network Connector 8 DisplayPort Monitor Connectors

Serial Connector 9 VGA Monitor Connector

USB 2.0 Ports (black) 10 USB 3.0 Ports (blue)

Line-In Audio Connector (blue) 11 Line-Out Connector for powered audio

devices (green)

Rear panel components

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.

4 Chapter 1 Product features

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.

Activating and customizing the software in Windows 7

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

6 Chapter 2 Activating and Customizing the Software

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

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.

Activating and customizing the software in Windows 8

3 Illustrated parts catalog

This chapter provides spare part information for all chassis.

Small Form Factor (SFF) chassis spare parts

Computer major components

Item Description

(1) Front bezel

(2) Access panel

(3) Power supply

8 Chapter 3 Illustrated parts catalog

Item Description

240W, 92% efficient

240W, 90% efficient

240W, standard

(4) System board (includes replacement thermal material)

For use in models without Windows 8

For use in models with Windows 8 Standard

For use in models with Windows 8 Professional

For use in models with NetClone

Memory modules (PC3-12800)

8-GB

4-GB

2-GB

Processors (include replacement thermal material)

Intel Core i7 4770 (3.4-GHz, 8-MB L3 cache)

Cables

Intel Core i5 4670 (3.4-GHz, 6-MB L3 cache)

Intel Core i5 4570 (3.2-GHz, 6-MB L3 cache)

Item Description

(1) Front I/O assembly

(2) Power switch assembly

(3) SATA drive power cable

Hard drive SATA cable, 14 inch, 1 straight end, 1 angled end

Optical drive SATA cable, 19.5 inch, 2 straight ends

SATA cable, 25.2 inch, 1 straight end, 1 angled end

Small Form Factor (SFF) chassis spare parts

Item Description

DMS-59 to dual VGA cable

Adapter, DisplayPort to VGA

Adapter, DisplayPort to DVI

Adapter, DisplayPort to HDMI

DisplayPort cable

Miscellaneous parts

Item Description

(1) Fan sink (includes replacement thermal material)

(2) Fan duct

(3) Speaker

(4) Hood sensor

Optical drive bezel blank

Solenoid lock

Printer port, PCI card

HP Ultraslim Keyed Cable Lock

Rubber foot kit (includes four rubber feet)

Chassis stand

Serial port, PCI card

Hard drive conversion bracket

USB powered speakers

10 Chapter 3 Illustrated parts catalog

Item Description

Mouse

PS2, optical

USB, HP Elite

Washable

Wireless, HP Elite

USB, optical

Rubber foot kit (includes four rubber feet)

Keyboard

PS/2

USB

USB, wireless

Smart card

Wireless keyboard, mouse, and dongle

Misc boards

Description

nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB

nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB

AMD Radeon HD8490 PCIe x16 graphics card, 1 GB

AMD Radeon HD8450 PCIe x16 graphics card, 1 GB

GeForce GT630 PCIe x16 graphics card, 2 GB

Intel PRO/1000 single port GbE NIC, includes bracket

HP WLAN 802.11 a/b/g/n 2x2 PCIe module

Mass storage devices

Description

Hard drive

2 TB, 7200 rpm

1 TB hard drive, hybrid SSD, 2.5-inch hard drive

1 TB, 10000 rpm

Small Form Factor (SFF) chassis spare parts

Description

1 TB, 7200 rpm

750 GB, 7200 rpm, hybrid SSD, 2.5-inch hard drive

500 GB, 10000 rpm

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

500 GB hard drive, hybrid SSD, 2.5-inch hard drive

256-GB Solid-state Drive (SSD), self-encrypting (SED)

128-GB Solid-state Drive (SSD)

32 GB mSATA drive

32 GB mSATA drive, 2.5-inch

Optical drive

DVD±RW drive

NOTE: 2.5-inch solid-state drives require an adapter for installation.

12 Chapter 3 Illustrated parts catalog

4 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

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

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.

14 Chapter 4 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

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.

●

16 Chapter 4 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 17 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 17 before cleaning the keyboard.

To clean the tops of the keys or the keyboard body, follow the procedures described in

Computer Case on page 17.

When cleaning debris from under the keys, review all rules in

on page 17 before following these procedures:

General cleaning safety precautions

Routine care

Cleaning the

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.

Power supply fan

The power supply fan is a variable-speed fan based on the temperature in the power supply.

CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is

off when the computer is in “Standby,” “Suspend,” or “Off” modes.

Cleaning the Computer Case on page 17.

You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.

18 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

Tools and software Requirements

To service the computer, you need the following:

Torx T-15 screwdriver

●

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

●

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

●

Phillips #2 screwdriver

●

Diagnostics software

●

Tamper-resistant T-15 wrench

●

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of 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

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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

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protective packaging until they are actually mounted in the CPU.

Avoid dropping drives from any height onto any surface.

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Service considerations

If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive

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while the computer is on or in standby mode.

Before handling a drive, ensure that you are discharged of static electricity. While handling a

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drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to

Do not use excessive force when inserting a drive.

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Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic

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Electrostatic discharge information on page 13

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.

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

20 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

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