HP 200 G1 Service and Maintain

Maintenance & Service Guide

HP 200 G1 Microtower

Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and other countries.

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 (February 2014)

Document Part Number: 752857-001

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 description ........................................................................................................... 1

2 Product features ............................................................................................................... 4

Front components ..................................................................................................................... 4

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

3 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

4 Illustrated parts catalog .................................................................................................... 9

Computer Major Components .................................................................................................. 10

Cables .................................................................................................................................. 12

Misc Parts ............................................................................................................................. 13

Drives ................................................................................................................................... 14

Sequential Part Number Listing ................................................................................................ 14

5 Routine care, SATA drive guidelines, and disassembly preparation ................................. 17

Electrostatic discharge information ........................................................................................... 17

Generating static .................................................................................................... 18

Preventing electrostatic damage to equipment ............................................................. 18

Personal grounding methods and equipment .............................................................. 19

Grounding the work area ......................................................................................... 19

Recommended materials and equipment .................................................................... 19

Operating guidelines .............................................................................................................. 20

Routine care .......................................................................................................................... 21

General cleaning safety precautions .......................................................................... 21

Cleaning the Computer Case .................................................................................... 21

Cleaning the keyboard ............................................................................................ 21

Cleaning the monitor ............................................................................................... 22

Cleaning the mouse ................................................................................................. 22

Service considerations ............................................................................................................ 22

Power supply fan .................................................................................................... 22

Tools and software Requirements .............................................................................. 23

Screws ................................................................................................................... 23

Cables and connectors ............................................................................................ 23

Hard Drives ............................................................................................................ 23

Lithium coin cell battery ............................................................................................ 24

SATA hard drives ................................................................................................................... 24

SATA hard drive cables .......................................................................................................... 25

SATA data cable ..................................................................................................... 25

SMART ATA drives ................................................................................................................. 25

Cable management ................................................................................................................ 25

6 Removal and replacement procedures ............................................................................ 26

Serviceability features ............................................................................................................. 26

Preparation for disassembly .................................................................................................... 26

Access panel ......................................................................................................................... 27

Front bezel ............................................................................................................................ 28

Memory ................................................................................................................................ 29

DDR3L-SDRAM SODIMMs ........................................................................................ 29

Populating DIMM sockets ......................................................................................... 30

Removing memory modules ...................................................................................... 31

Expansion cards .................................................................................................................... 32

Cable management ................................................................................................................ 34

Cable connections ................................................................................................... 35

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

Installing additional drives ........................................................................................ 37

System board drive connections ................................................................. 38

Removing an optical drive ......................................................................... 39

Removing a hard drive ............................................................................. 40

Front I/O and USB panel housing assembly .............................................................................. 41

Power switch/LED assembly .................................................................................................... 43

Speaker ................................................................................................................................ 45

Power supply ......................................................................................................................... 48

System board ........................................................................................................................ 50

Battery .................................................................................................................................. 52

Appendix A Computer Setup (F10) Utility ........................................................................... 54

Computer Setup (F10) Utilities ................................................................................................. 54

Using Computer Setup (F10) Utilities .......................................................................... 55

Computer Setup—File .............................................................................................. 56

Computer Setup—Storage ........................................................................................ 57

Computer Setup—Security ........................................................................................ 59

Computer Setup—Power .......................................................................................... 60

Computer Setup—Advanced .................................................................................... 61

Appendix B Power cord set requirements .......................................................................... 62

General requirements ............................................................................................................. 62

Japanese power cord requirements .......................................................................................... 62

Country-specific requirements .................................................................................................. 63

Appendix C POST Error Messages ...................................................................................... 64

POST Numeric Codes and Text Messages ................................................................................. 65

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ............................................... 73

Appendix D Password Security and Resetting CMOS .......................................................... 74

Resetting the Password Jumper ................................................................................................. 75

Clearing and Resetting the CMOS ........................................................................................... 75

Appendix E Troubleshooting without diagnostics ............................................................... 77

Safety and comfort ................................................................................................................. 77

Before you call for technical support ......................................................................................... 77

Helpful hints .......................................................................................................................... 78

Solving general problems ........................................................................................................ 80

Solving power problems ......................................................................................................... 84

Solving hard drive problems .................................................................................................... 85

Solving media card reader problems ........................................................................................ 88

Solving display problems ........................................................................................................ 89

Solving audio problems .......................................................................................................... 95

Solving printer problems ......................................................................................................... 97

Solving keyboard and mouse problems .................................................................................... 98

Solving Hardware Installation Problems .................................................................................. 100

Solving Network Problems .................................................................................................... 103

Solving memory problems ..................................................................................................... 106

vii

Solving processor problems ................................................................................................... 108

Solving CD-ROM and DVD problems ...................................................................................... 109

Solving USB flash drive problems ........................................................................................... 111

Solving front panel component problems ................................................................................. 112

Solving Internet access problems ............................................................................................ 112

Solving software problems .................................................................................................... 114

Appendix F HP PC Hardware Diagnostics ......................................................................... 116

Why run HP PC Hardware Diagnostics ................................................................................... 116

How to access and run HP PC Hardware Diagnostics ............................................................... 116

Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 117

Appendix G System backup and recovery ....................................................................... 118

Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ....................................... 118

Creating recovery media and backups .................................................................... 118

Restoring and recovering using Windows tools ......................................................... 119

Using Reset when the system is not responding .......................................... 119

Recovery using the Windows recovery USB flash drive ............................... 120

Recovery using Windows operating system media (purchased separately) .... 120

Backing up, restoring, and recovering in Windows 7 ............................................................... 121

Creating recovery media ........................................................................................ 121

Creating recovery media using HP Recovery Manager (select models only) ... 122

Creating recovery discs with HP Recovery Disc Creator (select models only) . . 123

Creating recovery discs ............................................................ 123

Backing up your information .................................................................... 124

System Restore ...................................................................................................... 124

System Recovery ................................................................................................... 125

System Recovery when Windows is responding ......................................... 125

System Recovery when Windows is not responding .................................... 126

System Recovery using recovery media (select models only) ......................... 126

Using HP Recovery Disc operating system discs (select models only) ............. 127

Appendix H Statement of Volatility .................................................................................. 129

Appendix I Specifications ................................................................................................. 130

MT Specifications ................................................................................................................. 130

Index ............................................................................................................................... 131

viii

1 Product description

Category Description

Product Name HP 200 G1 MT

Processors Intel Pentium Quad Core J2850 (2.41 GHz, 2 MB, 10W)

Intel Celeron Quad Core J1850 (2.00 GHz, 2 MB, 10W)

Intel Celeron Dual Core J1750 (2.41 GHz, 1 MB, 10W)

Chipset Intel Baytrail

Graphics Intel HD Graphics

Memory Two customer-accessible/upgradable memory module slots

1600MHz – 12800 DDR3L, dual channel support

Downgrade to 1333 Mhz based on CPU

Supports up to 8 GB of system RAM integrated into the system board in the following options:

8 GB (4 GB x 2)

●

4 GB (4 GB x 1)

●

2 GB (2 GB x 1)

●

Hard drive Supports the following 3.5-inch, 6 Gb/s, SATA hard drives:

1-TB, 7200 rpm

●

500-GB, 7200 rpm

●

Optical drive Supports the following 5.25-inch SATA optical drives:

SuperMulti DVD±RW

●

DVD-ROM

●

Supports no optical drive option

Audio Integrated high definition audio

Standard internal speaker

Internal amplifier - Realtek ALC221

Ethernet 10/100/1000M GbE local area network (LAN)

Category Description

Internal expansion (1) PCI expansion port

(2) PCIe x1 expansion ports

No hard drive expansion

Ports Rear IO:

2 USB 2.0 ports

1 USB 3.0 ports

Audio out connector

RJ-45 connector

DisplayPort connector

VGA connector

Serial port

Second serial port

Parallel port

Front IO:

2 USB 2.0 ports

Headphone connector

Microphone connector (with retasking)

Keyboard and mouse Universal USB wired Windows 8 keyboard

HP USB Wired with volume control keyboard

Universal USB wired optical mouse

HP USB wired optical mouse

Power requirements Internal power supply unit

180 W, aPFC

2 Chapter 1 Product description

Category Description

Operating system Preinstalled:

Windows 8.1 Professional 64 bit

Windows 8.1 China 64-bit

Windows 7 Professional 64 bit

Windows 7 Professional 32 bit

Windows 7 Home Basic 32 bit

FreeDos 2.0

Ubuntu Linux 64 bit

Ubuntu Linux CR 64 bit

SoftPaq

Windows 7 driver (32/64 bit)

Windows 8.1 driver (64 bit)

Serviceability End user replaceable part:

Hard drive

Optical drive

Memory

2 Product features

Front components

1 Power button 6 7-in-1 Media Card Reader (optional)

2 Power Indicator Light 7 Microphone In Port

3 Hard Disk Drive Indicator Light 8 Audio Line Out Port

4 Optical Disk Drive Ejection Button 9 Two USB 2.0 Ports

5 Media Card Reader Indicator Light

4 Chapter 2 Product features

Rear components

1 Access Panel Screw 7 VGA Video Output Connection

2 Audio Line In Port 8 Serial Port (COM)

3 Audio Line Out Port 9 DisplayPort Video Output Connection

4 Microphone In Port 10 Two (2) USB 2.0 Ports

5 PS/2 Keyboard Port (purple) 11 RJ-45 Network Connection Port

6 PS/2 Mouse Port (green) 12 One (1) USB 3.0 Port

Rear components

3 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 3 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

Activating and customizing the software in Windows 8

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.

8 Chapter 3 Activating and Customizing the Software

4 Illustrated parts catalog

This chapter provides spare part information for all chassis.

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.

http://partsurfer.hp.com, select your country or region, and

Computer Major Components

Item Description Spare part number

(1) Access panel 674373-001

(2) Front bezel 751588-001

(3) Power supply, 180W

180W, APFC 751590-001

180W, Energy Star 6 751589-001

(4) System board (includes replacement thermal material)

Intel Pentium J2900 processor:

For use in non-Windows 8 models 776903-001

●

10 Chapter 4 Illustrated parts catalog

Item Description Spare part number

Intel Pentium J2850 processor:

Intel Celeron J1900 processor:

Intel Celeron J1850 processor:

Intel Celeron J1800 processor:

For use in models with Windows 8.1 Standard 776903-501

●

For use in models with Windows 8.1 Professional 776903-601

●

For use in non-Windows 8 models 755525-001

●

For use in models with Windows 8.1 Standard 755525-501

●

For use in models with Windows 8.1 Professional 755525-601

●

For use in non-Windows 8 models 776904-001

●

For use in models with Windows 8.1 Standard 776904-501

●

For use in models with Windows 8.1 Professional 776904-601

●

For use in non-Windows 8 models 755526-001

●

For use in models with Windows 8.1 Standard 755526-501

●

For use in models with Windows 8.1 Professional 755526-601

●

Intel Celeron J1750 processor:

Memory modules, PC3L-12800, 1666-MHz (not illustrated)

4-GB 689373-001

2-GB 689372-001

For use in non-Windows 8 models 776905-001

●

For use in models with Windows 8.1 Standard 776905-501

●

For use in models with Windows 8.1 Professional 776905-601

●

For use in non-Windows 8 models 755527-001

●

For use in models with Windows 8.1 Standard 755527-501

●

For use in models with Windows 8.1 Professional 755527-601

●

Computer Major Components

Cables

Item Description Spare part number

(1) Power switch/LED assembly 667850-001

(2) SATA cable, 165 mm, 2 straight ends 660146-001

(3) SATA cable, 254 mm, 1 straight end, 1 right angled end 667854-001

SATA cable, 254 mm, 2 straight ends (not illustrated) 660147-001

12 Chapter 4 Illustrated parts catalog

Misc Parts

Item Description Spare part number

(1) Front I/O and USB assembly 667853-001

(2) Speaker 751593-001

Keyboards (wired, USB; not illustrated)

Universal USB Wired Windows 8 Keyboard, English 709695-L31

Universal USB Wired Windows 8 Keyboard, French Canada 709695-121

Universal USB Wired Windows 8 Keyboard, South Korea 709695-KD1

HP Essential, People’s Republic of China 729339-AA1

HP Essential, Taiwan 729339-AB1

HP Essential, Thailand 729339-281

HP Essential, United States 729339-001

Universal USB Wired Windows 8 Keyboard, blue, Latin American Spanish 537924-161

HP USB wired with volume control, People’s Republic of China 723314-AA1

HP USB wired with volume control, French Canadian 723314-121

HP USB wired with volume control, International English 723314-L31

HP USB wired with volume control, LA Spanish 723314-161

HP USB wired with volume control, South Korea 723314-KD1

HP USB wired with volume control, Taiwanese 723314-AB1

HP USB wired with volume control, Thai 723314-281

HP USB wired with volume control, United States 723314-001

Mouse (optical, USB; not illustrated)

HP USB wired optical mouse 723313-001

Universal USB wired optical mouse 719901-001

Misc Parts

Drives

Description Spare part number

1-TB, 7200-rpm hard drive 667719-001

500-GB, 7200-rpm hard drive 667720-001

DVD-ROM drive 581599-001

SuperMulti DVD±RW drive 690418-001

Sequential Part Number Listing

Spare part number

537924-161 Universal USB Wired Windows 8 Keyboard, blue, Latin American Spanish

581599-001 DVD-ROM drive

660146-001 SATA cable, 165 mm, 2 straight ends

660147-001 SATA cable, 254 mm, 2 straight ends

667719-001 1 TB, 7200-rpm hard drive

667720-001 500 GB, 7200-rpm hard drive

667850-001 Power switch/LED assembly with cable

667853-001 Front I/O and USB assembly

667854-001 SATA cable, 254 mm, 1 straight end, 1 right angled end

674373-001 Access panel

689372-001 2-GB memory module, PC3L-12800, 1666-MHz

689373-001 4-GB memory module, PC3L-12800, 1666-MHz

690418-001 SuperMulti DVD±RW drive

709695-121 Universal USB Wired Windows 8 Keyboard, French Canada

Description

709695-KD1 Universal USB Wired Windows 8 Keyboard, South Korea

709695-L31 Universal USB Wired Windows 8 Keyboard, English

719901-001 Universal USB wired optical mouse

723313-001 HP USB wired optical mouse

723314-001 Keyboard, HP USB wired with volume control, United States

723314-121 Keyboard, HP USB wired with volume control, French Canada

723314-161 Keyboard, HP USB wired with volume control, Latin America Spanish

723314-281 Keyboard, HP USB wired with volume control, Thailand

14 Chapter 4 Illustrated parts catalog

Spare part number

723314-AA1 Keyboard, HP USB wired with volume control, the People’s Republic of China

723314-AB1 Keyboard, HP USB wired with volume control, Taiwanese

723314-KD1 Keyboard, HP USB wired with volume control, South Korea

723314-L31 Keyboard, HP USB wired with volume control, International English

729339-001 Keyboard, USB, HP Essential, United States

729339-281 Keyboard, USB, HP Essential, Thailand

729339-AA1 Keyboard, USB, HP Essential, People’s Republic of China

729339-AB1 Keyboard, USB, HP Essential, Taiwan

751588-001 Front bezel

751589-001 Power supply, 180W, Energy Star 6

751590-001 Power supply, 180W, APFC

751593-001 Speaker

755525-001 System board for use in non-Windows 8 models with an Intel Pentium J2850 processor (includes replacement

Description

thermal material)

755525-501 System board for use in models with Windows 8.1 Standard and an Intel Pentium J2850 processor (includes

replacement thermal material)

755525-601 System board for use in models with an Intel Pentium J2850 processor and Windows 8.1 Professional and an

Intel Pentium J2850 processor (includes thermal material)

755526-001 System board for use in non-Windows 8 models with an Intel Celeron J1850 processor (includes replacement

thermal material)

755526-501 System board for use in models with Windows 8.1 Standard and an Intel Celeron J1850 processor (includes

replacement thermal material)

755526-601 System board for use in models with an Intel Pentium J2850 processor and Windows 8.1 Professional and an

Intel Celeron J1850 processor (includes thermal material)

755527-001 System board for use in non-Windows 8 models with an Intel Celeron J1750 processor (includes replacement

thermal material)

755527-501 System board for use in models with Windows 8.1 Standard and an Intel Celeron J1750 processor (includes

replacement thermal material)

755527-601 System board for use in models with an Intel Pentium J1750 processor and Windows 8.1 Professional and an

Intel Celeron J1750 processor (includes thermal material)

776903-001 System board for use in non-Windows 8 models with an Intel Pentium J2900 processor (includes replacement

thermal material)

776903-501 System board for use in models with Windows 8.1 Standard and an Intel Pentium J2900 processor (includes

replacement thermal material)

776903-601 System board for use in models with an Intel Pentium J1750 processor and Windows 8.1 Professional and an

Intel Pentium J2900 processor (includes thermal material)

Sequential Part Number Listing

Spare part number

776904-001 System board for use in non-Windows 8 models with an Intel Celeron J1900 processor (includes replacement

776904-501 System board for use in models with Windows 8.1 Standard and an Intel Celeron J1900 processor (includes

776904-601 System board for use in models with an Intel Pentium J1750 processor and Windows 8.1 Professional and an

776905-001 System board for use in non-Windows 8 models with an Intel Celeron J1800 processor (includes replacement

776905-501 System board for use in models with Windows 8.1 Standard and an Intel Celeron J1800 processor (includes

776905-601 System board for use in models with an Intel Pentium J1750 processor and Windows 8.1 Professional and an

Description

thermal material)

replacement thermal material)

Intel Celeron J1900 processor (includes thermal material)

thermal material)

replacement thermal material)

Intel Celeron J1800 processor (includes thermal material)

16 Chapter 4 Illustrated parts catalog

5 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.

18 Chapter 5 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.

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20 Chapter 5 Routine care, SATA drive guidelines, and disassembly preparation

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

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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 21 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.

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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.

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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 21 before cleaning the keyboard.

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

Computer Case on page 21.

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

on page 21 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 21.

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

22 Chapter 5 Routine care, SATA drive guidelines, and disassembly preparation

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