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.

●

20 Chapter 5 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 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.

●

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 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

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

●

packaging and label the package “Fragile: Handle With Care.”

Do not remove hard drives from the shipping package for storage. Keep hard drives in their

●

protective packaging until they are actually mounted in the CPU.

Avoid dropping drives from any height onto any surface.

●

Service considerations

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

●

while the computer is on or in standby mode.

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

●

drive, avoid touching the connector.

Do not use excessive force when inserting a drive.

●

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

●

fields such as monitors or speakers.

Lithium coin cell battery

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

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

WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the

battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.

NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the

general household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents.

SATA hard drives

Serial ATA Hard Drive Characteristics

Number of pins/conductors in data cable 7/7

Number of pins in power cable 15

Maximum data cable length 39.37 in (100 cm)

Data interface voltage differential 400-700 mV

Drive voltages 3.3 V, 5 V, 12 V

Jumpers for configuring drive N/A

Data transfer rate 6.0 Gb/s

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

SATA hard drive cables

SATA data cable

Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA

1.5 Gb/s drives.

Current HP desktop products ship with SATA 3.0 Gb/s hard drives.

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

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

SMART ATA drives

The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.

Cable management

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

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

●

Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these

●

are not designed to take excessive pressure on them.

Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when

●

the parts are moved.

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

●

wires.

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

●

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

●

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

●

Never crease a SATA data cable.

●

Do not rely on components like the drive cage, power supply, or computer cover to push cables

●

down into the chassis. Always position the cables to lay properly by themselves.

SATA hard drive cables

6 Removal and replacement

procedures

Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly.

NOTE: Not all features listed in this guide are available on all computers.

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

Serviceability features

The computers include features that make them easy to upgrade and service. A Torx T-15, Phillips, or flat blade screwdriver is needed for many of the installation procedures described in this guide.

Preparation for disassembly

1. Close any open software applications.

2. Exit the operating system.

3. Remove any diskette or compact disc from the computer.

4. Turn off the computer and any peripheral devices that are connected to it.

CAUTION: Turn off the computer before disconnecting any cables.

CAUTION: Regardless of the power-on state, voltage is always present on the system board as

long as the system is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a unit.

26 Chapter 6 Removal and replacement procedures

5. Disconnect the power cord from the electrical outlet and then from the computer.

6. Disconnect all peripheral device cables from the computer.

NOTE: During disassembly, label each cable as you remove it, noting its position and routing.

Keep all screws with the units removed.

CAUTION: The screws used in the computer are of different thread sizes and lengths; using the

wrong screw in an application may damage the unit.

Access panel

Description Spare part number

Access panel 674373-001

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Loosen the captive Torx screw (1) on the back panel that secures the panel to the computer.

3. Slide the side panel toward the back (2), and then pull it away from the computer.

NOTE: Lay the computer on its side to install internal parts.

Rear panel appearance may vary.

To replace the access panel, reverse the removal steps.

Access panel

Front bezel

Description Spare part number

Front bezel 751588-001

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Press outward on the three latches (1) on the right side of the bezel.

4. Rotate the right side of the bezel off the chassis, and then remove the bezel from the chassis (2).

NOTE: System board appearance may vary.

Access panel on page 27).

To reinstall the front bezel, reverse the removal procedure.

28 Chapter 6 Removal and replacement procedures

Memory

Description Spare part number

Memory module, 4-GB 689373-001

Memory module, 2-GB 689372-001

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3LSDRAM) dual inline memory modules (SODIMMs).

DDR3L-SDRAM SODIMMs

The system board offers two memory sockets.

These memory sockets are populated with at least one preinstalled SODIMM. To achieve the maximum memory support, you can populate the system board with up to 8-GB of memory.

For proper system operation, the DDR3L SODIMMs must be:

industry-standard 204-pin

●

unbuffered non-ECC PC3L-12800 DDR3L-1600 MHz-compliant

●

1.35 volt DDR3L-SDRAM SODIMMs

●

The DDR3L SODIMMs must also:

support CAS latency 11 DDR3L 1600 MHz (11-11-11 timing)

●

contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification

●

In addition, the computer supports:

2-Gbit and 4-Gbit non-ECC memory technologies

●

single-sided and double-sided SODIMMs

●

SODIMMs constructed with x8 and x16 DDR devices; SODIMMs constructed with x4 SDRAM are

●

not supported

NOTE: The system will not operate properly if you install unsupported SODIMMs.

Memory

Populating DIMM sockets

There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled DIMM1 and DIMM2. The DIMM1 socket operates in memory channel A. The DIMM2 socket operates in memory channel B.

Description Socket Color Insertion Order

XMM1 socket, Channel A (populate first) Black 1

XMM2 socket, Channel B White 2

NOTE: A memory module must occupy the XMM1/Channel A socket.

The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the SODIMMs are installed.

The system will operate in single channel mode if the SODIMM sockets are populated in one

●

channel only.

The system will operate in a higher-performing dual channel mode if the total memory capacity of

●

the SODIMM in Channel A is equal to the total memory capacity of the SODIMM in Channel B.

The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not

●

equal to the memory capacity of the SODIMM in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel

30 Chapter 6 Removal and replacement procedures

and the remainder is assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to channel A.

In any mode, the maximum operational speed is determined by the slowest SODIMM in the

●

system.

Removing memory modules

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power

to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.

The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module.

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Locate the memory module sockets on the system board.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system

components to cool before touching.

4. Open both latches (1) of the memory module socket , and remove the memory module from the

socket (2).

Access panel on page 27).

To install a memory module, reverse the removal procedures.

Memory

NOTE: A memory module can be installed in only one way. Match the notch on the module with the

tab on the memory socket.

A DIMM must occupy the XMM1 socket.

To create a dual-channel memory configuration, the memory capacity of Channel A must equal the memory capacity of Channel B.

Expansion cards

The computer has one PCI expansion slot and two PCI Express x1 expansion slots.

To remove an expansion card:

1. Prepare the computer for disassembly (

2. Remove the access panel (

32 Chapter 6 Removal and replacement procedures

Access panel on page 27)

Preparation for disassembly on page 26).

3. Remove the screw that holds down the expansion card retention latch (1) then slide the latch up

(2) and pull it off the rear of the chassis (3).

4. Locate the correct vacant expansion socket on the system board and the corresponding expansion

slot on the back of the computer chassis.

5. Before installing an expansion card, remove the expansion slot cover or the existing expansion

card.

NOTE: Before removing an installed expansion card, disconnect any cables that may be

attached to the expansion card.

a. If you are installing an expansion card in a vacant socket, you must use a flatblade

screwdriver to pry out one of the metal shields on the rear panel that covers the expansion slot. Be sure to remove the appropriate shield for the expansion card you are installing.

Expansion cards

b. If you are removing a PCI card or a PCI Express x1 card, hold the card at each end and

carefully rock it back and forth until the connectors pull free from the socket. Lift the card straight up then away from the inside of the chassis to remove it. Be sure not to scrape the card against other components.

NOTE: PCI Express x1 card shown below.

6. Store the removed card in anti-static packaging.

7. If you are not installing a new expansion card, install an expansion slot cover to close the open

slot.

CAUTION: After removing an expansion card, you must replace it with a new card or

expansion slot cover for proper cooling of internal components during operation.

To install an expansion card, reverse the removal procedures.

Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed.

Cable management

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

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

●

Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these

●

are not designed to take excessive pressure on them.

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

●

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

●

Never crease a SATA data cable.

●

Do not rely on components like the drive cage, power supply, or computer cover to push cables

●

down into the chassis. Always position the cables to lay properly by themselves.

34 Chapter 6 Removal and replacement procedures

When removing the power supply power cable from the ATX_PWR connector on the system board, always follow these steps:

1. Squeeze on the top of the retaining latch attached to the cable end of the connector (1).

2. Grasp the cable end of the connector and pull it straight up (2).

CAUTION: Always pull the connector - NEVER pull on the cable. Pulling on the cable could

damage the cable and result in a failed power supply.

Cable connections

System board connectors are color-coded to make it easier to find the proper connection.

Connector Name Connector Color Description

ATX_POWER white Power supply, 24-pin

CPU_PWR white Power supply, 4-pin

CPU_FAN white Heat sink fan

INT_SPKR white Speaker

F_PANEL black Power switch

F_AUDIO yellow Front I/O audio

F_USB2 white Front I/O USB

SATA0 dark blue Primary hard drive

SATA1 white Primary optical drive

Cable management

Drives

Description Spare part number

SuperMulti DVD±RW drive 690418-001

DVD-ROM drive 581599-001

1 TB, 7200-rpm hard drive 667719-001

500 GB, 7200-rpm hard drive for use in all models 667720-001

The computer supports up to three drives that may be installed in various configurations.

Item Description

1 Optical drive

2 Hard drive

This section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive.

36 Chapter 6 Removal and replacement procedures

Installing additional drives

When installing drives, follow these guidelines:

The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA

●

connector on the system board labeled SATA0.

Connect an optical drive to the white SATA connector on the system board labeled SATA1.

●

The power cables for the SATA drives connect directly to the power supply. The primary hard

●

drive connects to the power connector labeled P3. the primary optical drive connects to the power connector labeled P5.

The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.

●

CAUTION: To prevent loss of work and damage to the computer or drive:

If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby mode.

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

Electrostatic discharge information on page 17.

Handle a drive carefully; do not drop it.

Do not use excessive force when inserting a drive.

Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields such as monitors or speakers.

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

Drives

System board drive connections

Refer to the following illustration and table to identify the system board drive connectors.

System Board Drive Connections

Drive System Board Label Color

Hard drive SATA0 dark blue

Optical drive SATA1 white

38 Chapter 6 Removal and replacement procedures

Removing an optical drive

CAUTION: All removable media should be taken out of a drive before removing the drive from the

computer.

To remove an optical drive:

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the front bezel (

4. Disconnect the power and data cables (1) from the rear of the optical drive.

5. Remove the two Torx screws (2) that secure the drive to the computer.

6. Slide the drive out of the computer (3).

Access panel on page 27).

Front bezel on page 28).

Preparation for disassembly on page 26).

To install an optical drive, reverse the removal procedures.

Drives

Removing a hard drive

NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so

that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer.

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Disconnect the power and data cables (1) from the rear of the hard drive.

4. Remove the four Torx screws (2) that secure the drive to the computer.

5. Slide the hard drive toward the bottom of the computer (3), and then remove it from the

computer..

Access panel on page 27).

To install a hard drive, reverse the removal procedures.

40 Chapter 6 Removal and replacement procedures

Front I/O and USB panel housing assembly

Description Spare part number

Front I/O and USB assembly 667853-001

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Lay the computer on its side with the front facing toward you.

4. Remove the front bezel (

5. Remove the cables from the metal clip built into the bottom of the chassis, and then unplug the two

cables from the yellow F_AUDIO and white F_USB2 connectors.

Access panel on page 27)

Front bezel on page 28).

Front I/O and USB panel housing assembly

6. Push in on the lever labeled ‘PUSH’.

7. Pull the assembly outward away from the front of the chassis while guiding the cables through the

hole in the chassis.

To install the housing assembly, reverse the removal procedures.

42 Chapter 6 Removal and replacement procedures

Power switch/LED assembly

Description Spare part number

Power switch/LED assembly 667850-001

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Remove the front bezel (

4. Remove the optical drive (

5. Disconnect the braided cables from the black system board connector labeled F_PANEL (1).

6. Remove the cable from the metal clip (2) built into the computer.

7. From the inside of the computer, push up on the tab on the bottom of the assembly (3) to

disengage it from the computer.

Access panel on page 27).

Front bezel on page 28).

Removing an optical drive on page 39).

Power switch/LED assembly

8. Pull the power switch away from the chassis while guiding the wires through the hole in the

chassis.

To install the power switch/LED assembly, reverse the removal procedures.

44 Chapter 6 Removal and replacement procedures

Speaker

Description Spare part number

Speaker 751593-001

The speaker is attached to the front of the chassis under the rotating drive cage.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the front bezel (

4. Lift the metal clip that secures the speaker cable.

Access panel on page 27).

Front bezel on page 28).

Preparation for disassembly on page 26).

Speaker

5. Disconnect the speaker wire from the white system board connector labeled INT_SPKR.

46 Chapter 6 Removal and replacement procedures

6. From the inside of the computer, pull the rubber posts into the computer to disengage them.

NOTE: When attempting to disengage the rubber posts, it may help to move the posts back and

forth as you pull them into the chassis.

7. Pull the speaker into the computer.

To install the speaker, reverse the removal procedures.

When installing the speaker, when you pull the rubber posts from the front of the chassis to secure the speaker, make sure to pull the posts until they click into place.

Speaker

Power supply

Description Spare part number

Power supply, 180W, APFC 751590-001

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

WARNING! Voltage is always present on the system board when the computer is plugged into an

active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer.

NOTE: When installing a new power supply, be sure to set the red switch to the setting (230 V or

115 V) appropriate for the country in which the computer is used.

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

3. Disconnect all power cables from the mass storage devices and from the system board connectors

labeled CPU_PWR and ATX_PWR.

4. From the rear of the computer, remove the four Torx screws that secure the power supply to the

chassis.

Access panel on page 27).

48 Chapter 6 Removal and replacement procedures

5. From the inside of the computer, cut the plastic tie that secures the power supply cables to the

drive cage.

6. Inside of the unit, press the power supply release latch on the chassis base (1).

7. Slide the power supply toward the front of the computer (2), then lift the power supply out of the

computer (3).

To install the power supply, reverse the removal procedure.

Power supply

System board

NOTE: All system board spare part kits include replacement thermal material.

Description Spare part number

System board with an Intel Pentium J2900 processor

Non-Windows 8 models 776903-001

Windows 8.1 Standard 776903-501

Windows 8.1 Professional 776903-601

System board with an Intel Pentium J2850 processor

Non-Windows 8 models 755525-001

Windows 8.1 Standard 755525-501

Windows 8.1 Professional 755525-601

System board with an Intel Celeron J1900 processor

Non-Windows 8 models 776904-001

Windows 8.1 Standard 776904-501

Windows 8.1 Professional 776904-601

System board with an Intel Celeron J1850 processor

Non-Windows 8 models 755526-001

Windows 8.1 Standard 755526-501

Windows 8.1 Professional 755526-601

System board with an Intel Celeron J1800 processor

Non-Windows 8 models 776905-001

Windows 8.1 Standard 776905-501

Windows 8.1 Professional 776905-601

System board with an Intel Celeron J1750 processor

Non-Windows 8 models 755527-001

Windows 8.1 Standard 755527-501

Windows 8.1 Professional 755527-601

When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board:

Memory modules

●

50 Chapter 6 Removal and replacement procedures

To remove the system board:

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove any installed expansion cards (

4. Disconnect all cables from the system board.

5. Remove the six screws (1) that secure the system board to the chassis.

6. Slide the system board toward the front of the chassis (2), and then lift it up and out of the chassis

(3).

Access panel on page 27).

Preparation for disassembly on page 26).

Expansion cards on page 32).

To install the system board, reverse the removal procedure.

NOTE: When replacing the system board, you must also change the chassis serial number in the

BIOS.

NOTE: After installing a new system board, always update the system ROM to ensure that the latest

version of the BIOS is being used on the computer. The latest system ROM BIOS can be found at:

\h18000.www1.hp.com/support/files.

System board

http:\

Battery

The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery.

NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC

wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

WARNING! This computer contains an internal lithium manganese dioxide battery. There is a risk of

fire and burns if the battery is not handled properly. To reduce the risk of personal injury:

❑

CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings.

When the battery is removed or replaced, the CMOS settings will be cleared.

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, its authorized partners, or its agents.

Do not attempt to recharge the battery.

Do not expose to temperatures higher than 60°C (140°F)

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

Replace the battery only with the HP/Compaq spare designated for this product.

CAUTION: Static electricity can damage the electronic components of the computer or optional

equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

1. Prepare the computer for disassembly (Preparation for disassembly on page 26).

2. Remove the access panel (

NOTE: It may be necessary to remove an expansion card to gain access to the battery.

3. Locate the battery and battery holder on the system board.

4. To release the battery from its holder, squeeze the metal clamp that extends above one edge of

the battery. When the battery pops up, lift it out (1).

Access panel on page 27).

52 Chapter 6 Removal and replacement procedures

5. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the

positive side up (2). Push the other edge down until the clamp snaps over the other edge of the battery.

6. Replace the computer access panel.

7. Plug in the computer and turn on power to the computer.

8. Reset the date and time, your passwords, and any special system setups, using Computer Setup.

Refer to

Computer Setup (F10) Utility on page 54.

Battery

A Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Use Computer Setup (F10) Utility to do the following:

Change factory default settings.

●

Set the system date and time.

●

Set, view, change, or verify the system configuration, including settings for processor, graphics,

●

memory, audio, storage, communications, and input devices.

Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash media

●

devices.

Enable Quick Boot, which is faster than Full Boot but does not run all of the diagnostic tests run

●

during a Full Boot. You can set the system to:

always Quick Boot (default);

❑

periodically Full Boot (from every 1 to 30 days); or

❑

always Full Boot.

❑

Select Post Messages Enabled or Disabled to change the display status of Power-On Self-Test

●

(POST) messages. Post Messages Disabled suppresses most POST messages, such as memory count, product name, and other non-error text messages. If a POST error occurs, the error is displayed regardless of the mode selected. To manually switch to Post Messages Enabled during POST, press any key (except F1 through F12).

Enter the Asset Tag or property identification number assigned by the company to this computer.

●

Enable the power-on password prompt during system restarts (warm boots) as well as during

●

power-on.

Establish a setup password that controls access to the Computer Setup (F10) Utility and the settings

●

described in this section.

Secure integrated I/O functionality, including the serial, USB, or parallel ports, audio, or

●

embedded NIC, so that they cannot be used until they are unsecured.

Enable or disable removable media boot ability.

●

54 Appendix A Computer Setup (F10) Utility

Solve system configuration errors detected but not automatically fixed during the Power-On Self-

●

Test (POST).

Execute self-tests on a specified ATA hard drive (when supported by drive).

●

Enable or disable DriveLock security (when supported by drive).

●

Using Computer Setup (F10) Utilities

Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps:

1. Turn on or restart the computer.

2. Repeatedly press F10 when the monitor light turns green to access the utility.

You can also press Esc to a menu that allows you to access different options available at startup, including the Computer Setup utility.

NOTE: If you do not press F10 at the appropriate time, you must restart the computer and again

repeatedly press F10 when the monitor light turns green to access the utility.

3. A choice of five headings appears in the Computer Setup Utilities menu: File, Storage, Security,

Power, and Advanced.

4. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down)

keys to select the option you want, then press Enter. To return to the Computer Setup Utilities menu, press Esc.

5. To apply and save changes, select File > Save Changes and Exit.

If you have made changes that you do not want applied, select Ignore Changes and

●

Exit.

To reset to factory settings or previously saved default settings (some models), select Apply

●

Defaults and Exit. This option will restore the original factory system defaults.

NOTE: Not all settings shown in the following sections are available for all models

CAUTION: Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup

(F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only after exiting the F10 Setup screen.

Computer Setup (F10) Utilities

Computer Setup—File

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table A-1 Computer Setup—File

Option Description

System Information Lists:

●

Manufacturer

Product name

SKU number

Serial Number

Asset Tag

Born on Date

System Board ID

Product Configuration ID

System Board CT Number

BIOS Revision

●

BIOS Date

●

Processor Type

●

Processor Speed

●

Memory Size

●

About Displays copyright notice.

Set Time and Date Allows you to set system time and date.

Apply Defaults and Exit

Ignore Changes and Exit

Save Changes and Exit

Applies the currently selected default settings and clears any established passwords.

Exits Computer Setup without applying or saving any changes.

Saves changes to system configuration or default settings and exits Computer Setup.

56 Appendix A Computer Setup (F10) Utility

Computer Setup—Storage

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table A-2 Computer Setup—Storage

Option Description

Device Configuration

Storage Options SATA Emulation

Lists all installed BIOS-controlled storage devices.

When a device is selected, detailed information and options are displayed. The following options may be presented:

Hard Disk: Size, model, firmware version, serial number.

●

CD-ROM: Model, firmware version, serial number.

●

Allows you to choose how the SATA controller and devices are accessed by the operating system. There are three supported options: IDE and AHCI (default).

CAUTION: SATA emulation changes may prevent access to existing hard drive data and

degrade or corrupt established volumes.

IDE - This is the most backwards-compatible setting of the options. Operating systems usually do not require additional driver support in IDE mode.

AHCI (default option) - Allows operating systems with AHCI device drivers loaded to take advantage of more advanced features of the SATA controller.

Computer Setup (F10) Utilities

Table A-2 Computer Setup—Storage (continued)

DPS Self-test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection

System (DPS) self-tests.

NOTE: This selection will only appear when at least one drive capable of performing the DPS self-

tests is attached to the system.

Boot Order Allows you to:

EFI Boot Sources: Specify the order in which EFI boot sources (such as a internal hard drive,

●

USB hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system image. Each device on the list may be individually excluded from or included for consideration as a bootable operating system source.

EFI boot sources always have precedence over legacy boot sources.

Legacy Boot Sources: Specify the order in which legacy boot sources (such as a network

●

interface card, internal hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system image. Each device on the list may be individually excluded from or included for consideration as a bootable operating system source.

Specify the order of attached hard drives. The first hard drive in the order will have priority in the boot sequence and will be recognized as drive C (if any devices are attached).

NOTE: To drag a device to a preferred place, press Enter. To remove the device from

consideration as a bootable device, press F5.

You can use F5 to disable individual boot items, as well as disable EFI boot and/or legacy boot.

NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system

has started.

Shortcut to Temporarily Override Boot Order

To boot one time from a device other than the default device specified in Boot Order, restart the computer and press Esc (to access the boot menu) and then F9 (Boot Order), or only F9 (skipping the boot menu) when the monitor light turns green. After POST is completed, a list of bootable devices is displayed. Use the arrow keys to select the preferred bootable device and press Enter. The computer then boots from the selected non-default device for this one time.

58 Appendix A Computer Setup (F10) Utility

Computer Setup—Security

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table A-3 Computer Setup—Security

Option Description

Setup Password Allows you to set and enable a setup (administrator) password.

NOTE: If the setup password is set, it is required to change Computer Setup options, flash the

ROM, and make changes to certain plug and play settings under Windows.

Power-On Password

Device Security Allows you to set Device Available/Device Hidden (default is Device Available) for:

USB Security Not supported.

Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled.

Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network

System IDs read-only unless entered using Ctrl+A.

Allows you to set and enable a power-on password. The power-on password prompt appears after a power cycle or reboot. If the user does not enter the correct power-on password, the unit will not boot.

Serial port A

●

System audio

●

Network controller

●

SATA ports (varies by model)

●

server. (Feature available on NIC models only; the network controller must be either a PCI expansion card or embedded on the system board.) Default is enabled.

Allows you to set:

Product Name

●

Serial Number

●

Universal Unique Identifier (UUID) number. The UUID can only be updated if the current

●

chassis serial number is invalid. (These ID numbers are normally set in the factory and are used to uniquely identify the system.)

SKU Number

●

Family Name (always read-only)

●

Asset tag (18-byte identifier), a property identification number assigned by the company to the

●

computer.

Feature Byte

●

Build ID

●

Keyboard locale setting for System ID entry.

●

Computer Setup (F10) Utilities

Table A-3 Computer Setup—Security (continued)

System Security Virtualization Technology (enable/disable) - Controls the virtualization features of the processor.

Changing this setting requires turning the computer off and then back on. Default is disabled.

Secure Boot Configuration

This is a feature of Windows 8.

Legacy Support—Enable/Disable. Allows you to turn off all legacy support on the computer,

●

including booting to DOS, running legacy graphics cards, booting to legacy devices, and so on. If set to disable, legacy boot options in Storage > Boot Order are not displayed. Default is enabled.

Secure Boot—Enable/Disable. Allows you to make sure an operating system is legitimate

●

before booting to it, making Windows resistant to malicious modification from preboot to full OS booting, preventing firmware attacks. UEFI and Windows Secure Boot only allow code signed by pre-approved digital certificates to run during the firmware and OS boot process. Default is disabled, except for Windows 8 systems which have this setting enabled. Secure Boot enabled also sets Legacy Support to disabled.

Key Management—This option lets you manage the custom key settings.

●

Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded

◦

custom boot keys. Default is Don't Clear.

Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify

◦

the contents of the secure boot signature databases and the platform key (PK) that verifies kernels during system start up, allowing you to use alternative operating systems. Selecting HP Keys causes the computer boot using the preloaded HP-specific boot keys. Default is HP Keys.

Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f

●

keys to access items before the operating system loads. Default is disabled.

NOTE: If Windows 8 detects a serious error, it will interrupt the boot process automatically

and display advanced boot options.

From Windows 8, you can press Shift and select Restart to access the screen that lets you boot to a device or troubleshoot your computer.

Computer Setup—Power

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table A-4 Computer Setup—Power

Option Description

Hardware Power Management

Thermal CPU Fan Speed - Display the CPU fan speed in rpm.

SATA Power Management – Enables or disables SATA bus and/or device power management. Default is enabled.

S4/S5 Wake on LAN – Enables or disables remotely waking up the computer from S4 (hibernate) and S5 (power is off) power states. Default is disabled.

CPU Fan Check (<CTRL-A>/Advanced Mode only) – Enable/Disable the CPU Fan Check.

60 Appendix A Computer Setup (F10) Utility

Computer Setup—Advanced

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Option Heading

Power-On Options Allows you to set:

POST messages (enable/disable). Enabling this feature will cause the system to display POST

●

error messages, which are error messages displayed on the monitor during the Power On Self Test if the BIOS encounters some kind of problem while starting the PC. A POST error message will only display on screen if the computer is capable of booting this far. If the POST detects an error before this point, a beep code is generated instead. Default is disabled.

After Power Loss (off/on/previous state). Default is Power off. Setting this option to:

●

Power off—causes the computer to remain powered off when power is restored.

◦

Power on—causes the computer to power on automatically as soon as power is restored.

◦

Previous state—causes the computer to power on automatically as soon as power is

◦

restored, if it was on when power was lost.

NOTE: If you turn off power to the computer using the switch on a power strip, you will not be

able to use the suspend/sleep feature or the Remote Management features.

POST Delay (in seconds). Enabling this feature will add a user-specified delay to the POST

●

process. This delay is sometimes needed for hard disks on some PCI cards that spin up very slowly, so slowly that they are not ready to boot by the time POST is finished. The POST delay also gives you more time to select F10 to enter Computer (F10) Setup. Default is None.

BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify.

Onboard Devices Allows you to set resources for or disable Legacy devices.

Select the Legacy device's IRQ, DMA, and I/O Range. The settings may not take effect for all operating systems. To hide a device from the operating system, see Security > Device Security.

Bus Options Allows you to enable or disable:

PCI SERR# Generation. Default is enabled.

●

PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration

●

space; only needed when more than one graphics controller is installed. Default is disabled.

Device Options Allows you to set:

Num Lock State at Power-On (off/on). Default is on.

●

Internal Speaker (does not affect external speakers). Default is enabled.

●

NIC PXE Option ROM Download (enabled, disabled). Default is enable.

●

This option will be hidden when the Network Controller device security is set to Disable.

Multi-Processor (enable/disable). Not supported.

●

Computer Setup (F10) Utilities

B Power cord set requirements

The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.

The power cord set received with the computer meets the requirements for use in the country where you purchased the equipment.

Power cord sets for use in other countries must meet the requirements of the country where you use the computer.

General requirements

The requirements listed below are applicable to all countries:

1. The power cord must be approved by an acceptable accredited agency responsible for evaluation

in the country where the power cord set will be installed.

2. The power cord set must have a minimum current capacity of 10A (7A Japan only) and a nominal

voltage rating of 125 or 250 volts AC, as required by each country’s power system.

3. The diameter of the wire must be a minimum of 0.75 mm

must be between 1.8 m (6 feet) and 3.6 m (12 feet).

The power cord should be routed so that it is not likely to be walked on or pinched by items placed upon it or against it. Particular attention should be paid to the plug, electrical outlet, and the point where the cord exits from the product.

WARNING! Do not operate this product with a damaged power cord set. If the power cord set is

damaged in any manner, replace it immediately.

or 18AWG, and the length of the cord

Japanese power cord requirements

For use in Japan, use only the power cord received with this product.

CAUTION: Do not use the power cord received with this product on any other products.

62 Appendix B Power cord set requirements

Country-specific requirements

Additional requirements specific to a country are shown in parentheses and explained below.

Country Accrediting Agency Country Accrediting Agency

Australia (1)

Austria (1)

Belgium (1)

Canada (2)

Denmark (1)

Finland (1)

France (1)

Germany (1)

1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm

coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.

2. The flexible cord must be Type SVT or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole

grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) configuration.

3. Appliance coupler, flexible cord, and wall plug must bear a “T” mark and registration number in accordance with the

Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration.

EANSW

OVE

CEBC

CSA

DEMKO

SETI

UTE

VDE

Italy (1)

Japan (3)

Norway (1)

Sweden (1)

Switzerland (1)

United Kingdom (1)

United States (2)

conductor size. Power cord set fittings (appliance

IMQ

METI

NEMKO

SEMKO

SEV

BSI

conductor size. Wall plug must

Country-specific requirements

C POST Error Messages

This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition.

POST Message Disabled suppresses most system messages during POST, such as memory count and non-error text messages. If a POST error occurs, the screen will display the error message. To manually switch to the POST Messages Enabled mode during POST, press any key (except F10, F11, or F12). The default mode is POST Message Disabled.

The speed at which the computer loads the operating system and the extent to which it is tested are determined by the POST mode selection.

Quick Boot is a fast startup process that does not run all of the system level tests, such as the memory test. Full Boot runs all of the ROM-based system tests and takes longer to complete.

Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish the schedule, reconfigure the computer to the Full Boot Every x Days mode, using Computer Setup.

NOTE: For more information on Computer Setup, see Computer Setup (F10) Utility on page 54.

64 Appendix C POST Error Messages

POST Numeric Codes and Text Messages

This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST.

NOTE: The computer will beep once after a POST text message is displayed on the screen.

Table C-1 Numeric Codes and Text Messages

Control panel message Description Recommended action

101-Option ROM Checksum Error System ROM or expansion board option

ROM checksum.

103-System Board Failure DMA or timers. 1. Clear CMOS. (See Appendix B,

110-Out of Memory Space for Option ROMs Recently added PCI expansion card contains

an option ROM too large to download during POST.

1. Verify the correct ROM.

2. Flash the ROM if needed.

3. If an expansion board was recently

added, remove it to see if the problem remains.

4. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

5. If the message disappears, there may

be a problem with the expansion card.

6. Replace the system board.

Password Security and Resetting CMOS on page 74.)

2. Remove expansion boards.

3. Replace the system board.

1. If a PCI expansion card was recently

added, remove it to see if the problem remains.

2. In Computer Setup, set Advanced >

Device Options > NIC PXE Option ROM Download to DISABLE to

prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card's option ROM. Internal PXE option ROM is used for booting from the NIC to a PXE server.

POST Numeric Codes and Text Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

162-System Options Not Set Configuration incorrect.

RTC (real-time clock) battery may need to be replaced.

163-Time & Date Not Set Invalid time or date in configuration memory.

RTC (real-time clock) battery may need to be replaced.

163-Time & Date Not Set CMOS jumper may not be properly installed. Check for proper placement of the CMOS

164-MemorySize Error Memory amount has changed since the last

boot (memory added or removed).

164-MemorySize Error Memory configuration incorrect. 1. Run Computer Setup or Windows

Run Computer Setup and check the configuration in Advanced > Onboard Devices.

Reset the date and time under Control Panel. If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.

Reset the date and time under Control Panel (Computer Setup can also be used). If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.

jumper if applicable.

Press the F1 key to save the memory changes.

utilities.

2. Make sure the memory module(s) are

installed properly.

3. If third-party memory has been added,

test using HP-only memory.

4. Verify proper memory module type.

201-Memory Error RAM failure. 1. Ensure memory modules are correctly

installed.

2. Verify proper memory module type.

3. Remove and replace the identified

faulty memory module(s).

4. If the error persists after replacing

memory modules, replace the system board.

213-Incompatible Memory Module in Memory Socket(s) X, X, ...

214-DIMM Configuration Warning Populated DIMM Configuration is not

A memory module in memory socket identified in the error message is missing critical SPD information, or is incompatible with the chipset.

optimized.

1. Verify proper memory module type.

2. Try another memory socket.

3. Replace DIMM with a module

conforming to the SPD standard.

Rearrange the DIMMs so that each channel has the same amount of memory.

66 Appendix C POST Error Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

219-ECC Memory Module Detected ECC Modules not supported on this Platform

301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer

303-Keyboard Controller Error I/O board keyboard controller. 1. Reconnect keyboard with computer

304-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer

Recently added memory module(s) support ECC memory error correction.

1. If additional memory was recently

added, remove it to see if the problem remains.

2. Check product documentation for

memory support information.

turned off.

2. Check connector for bent or missing

pins.

3. Ensure that none of the keys are

depressed.

4. Replace keyboard.

turned off.

2. Replace the system board.

turned off.

2. Ensure that none of the keys are

depressed.

3. Replace the keyboard.

4. Replace the system board.

501-Display Adapter Failure Graphics display controller. 1. Reseat the graphics card (if applicable).

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

3. Verify monitor is attached and turned

on.

4. Replace the graphics card (if possible).

510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS

image.

511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have

malfunctioned.

512-Chassis, Rear Chassis, or Front Chassis Fan not Detected

Chassis, rear chassis, or front chassis fan is not connected or may have malfunctioned.

1. Reseat CPU fan.

2. Reseat fan cable.

3. Replace CPU fan.

1. Reseat chassis, rear chassis, or front

chassis fan.

2. Reseat fan cable.

3. Replace chassis, rear chassis, or front

chassis fan.

POST Numeric Codes and Text Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

513-Front Chassis fan not detected Front chassis fan is not connected or may

have malfunctioned.

514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or may

have malfunctioned.

515-Power Supply fan not detected Power supply fan is not connected or may

have malfunctioned.

601-Diskette Controller Error Diskette controller circuitry or floppy drive

circuitry incorrect.

605-Diskette Drive Type Error Mismatch in drive type. 1. Disconnect any other diskette controller

1. Reseat front chassis fan.

2. Reseat fan cable.

3. Replace front chassis fan.

1. Reseat CPU or chassis fan.

2. Reseat fan cable.

3. Replace CPU or chassis fan.

1. Reseat power supply fan.

2. Reseat fan cable.

3. Replace power supply fan.

1. Check and/or replace cables.

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

3. Replace diskette drive.

4. Replace the system board.

devices (tape drives).

660-Display cache is detected unreliable Integrated graphics controller display cache

is not working properly and will be disabled.

912-Computer Cover Has Been Removed Since Last System Startup

917-Front Audio Not Connected Front audio harness has been detached or

918-Front USB Not Connected Front USB harness has been detached or

921-Device in PCI Express slot failed to initialize

1151-Serial Port A Address Conflict Detected Both external and internal serial ports are

Computer cover was removed since last system startup.

unseated from motherboard.

There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1.

assigned to COM1.

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

Replace system board if minimal graphics degrading is an issue.

No action required.

Reconnect or replace front audio harness.

Reconnect or replace front USB harness.

Try rebooting the system. If the error reoccurs, the device may not work with this system

1. Remove any serial port expansion

cards.

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

3. Reconfigure card resources and/or run

Computer Setup or Windows utilities.

68 Appendix C POST Error Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

1152-Serial Port B Address Conflict Detected Both external and internal serial ports are

assigned to COM2.

1155-Serial Port Address Conflict Detected Both external and internal serial ports are

assigned to same IRQ.

1720-SMART Hard Drive Detects Imminent Failure

Hard drive is about to fail. (Some hard drives have a hard drive firmware patch that will fix an erroneous error message.)

1. Remove any serial port expansion

cards.

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

3. Reconfigure card resources and/or run

Computer Setup or Windows utilities.

1. Remove any serial port expansion

cards.

2. Clear CMOS. (See Appendix B,

Password Security and Resetting CMOS on page 74.)

3. Reconfigure card resources and/or run

Computer Setup or Windows utilities.

1. Determine if hard drive is giving correct

error message. Enter Computer Setup and run the Drive Protection System test in F2 Diagnostics (reboot the computer and press F2 before the operating system starts.

2. Apply hard drive firmware patch

if applicable. (Available at

http://www.hp.com/support.)

3. Back up contents and replace hard

drive.

1796-SATA Cabling Error One or more SATA devices are improperly

attached. For optimal performance, the SATA 0 and SATA 1 connectors must be used before SATA 2 and SATA 3.

1797-SATA Drivelock is not supported in RAID mode.

1801-Microcode Patch Error Processor is not supported by ROM BIOS. 1. Upgrade BIOS to proper version.

Drivelock is enabled on one or more SATA hard drives, and they cannot be accessed while the system is configured for RAID mode.

Ensure SATA connectors are used in ascending order. For one device, use SATA

0. For two devices, use SATA 0 and SATA

1. For three devices, use SATA 0, SATA 1,

and SATA 2.

Either remove the Drivelocked SATA device or disable the Drivelock feature. To disable the Drivelock feature, enter Computer Setup, change Storage > Storage Options >

SATA Emulation to IDE, and select File > Save Changes and Exit. Reenter Computer Setup and select Security > Drivelock Security. For each listed

Drivelock-capable SATA device, ensure Drivelock is Disabled. Lastly, change

Storage > Storage Options > SATA Emulation back to RAID and select File > Save Changes and Exit.

2. Change the processor.

POST Numeric Codes and Text Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

2200-PMM Allocation Error during MEBx Download

2201-MEBx Module did not checksum correctly

Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM.

1. Reboot the computer.

2. Unplug the power cord, re-seat the

memory modules, and reboot the computer.

3. If the memory configuration was

recently changed, unplug the computer, restore the original memory configuration, and reboot the computer.

4. If the error persists, replace the system

board.

1. Reboot the computer.

2. Unplug the power cord, re-seat the

memory modules, and reboot the computer.

3. If the memory configuration was

recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.

4. If the error persists, replace the system

board.

2202-PMM Deallocation Error during MEBx cleanup

2203-Setup error during MEBx execution MEBx selection or exit resulted in a setup

Memory error during POST execution of the Management Engine (ME) BIOS Extensions option ROM.

failure.

1. Reboot the computer.

2. Unplug the power cord, re-seat the

memory modules, and reboot the computer.

3. If the memory configuration was

recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.

4. If the error persists, replace the system

board.

1. Reboot the computer.

2. Unplug the power cord, re-seat the

memory modules, and reboot the computer.

3. If the memory configuration was

recently changed, unplug the power cord, restore the original memory configuration, and reboot the computer.

4. If the error persists, replace the system

board.

70 Appendix C POST Error Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

2204-Inventory error during MEBx execution BIOS information passed to the MEBx

resulted in a failure.

2205-Interface error during MEBx execution MEBx operation experienced a hardware

error during communication with ME.

2211-Memory not configured correctly for proper MEBx execution.

2212-USB Key Provisioning failure writing to device

DIMM1 or XMM1 is not installed. Make sure there is a memory module in the

USB device used for USB key provisioning will not allow BIOS to update provision file properly.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version.

3. If the error still persists, replace the

system board.

black DIMM1 socket and that it is properly seated.

1. Try a different USB key device for

provisioning.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

2217-ME Firmware Version request failure ME firmware is not properly responding to

BIOS query for version information.

2218-ME Firmware Version should be updated

2219-USB Key Provisioning file has invalid header identifier

ME firmware must be updated to match current functionality contained in the system BIOS.

Provisioning file contained on the USB key has been corrupted or is not a valid version for the current ME firmware.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

1. Update to the latest ME firmware

version.

2. If the error persists and system BIOS

has been recently updated, restore previous system BIOS version.

3. If the error still persists, replace the

system board.

1. Recreate the provisioning file using third

party management console software.

2. If the error persists and system BIOS

has been recently updated, restore previous system BIOS version. Otherwise, update the ME firmware version.

3. If the error still persists, replace the

system board.

POST Numeric Codes and Text Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

2220-USB Key Provisioning file has mismatch version

2230-General error during MEBx execution Error occurred during MEBx execution which

2231-ME error during MEBx execution Error occurred during MEBx execution which

2232-AMT error during MEBx execution Error occurred during MEBx execution which

Provisioning file contained on the USB key is not a valid version for the current ME firmware.

fails into the “General” grouping. Status information displayed along with the error provides further clarity into the failure. MEBx handles transference of information between the system BIOS and ME firmware.

fails into “ME” grouping.

fails into “AMT” grouping.

1. Reboot the computer.

2. If the error persists and system BIOS

has been recently updated, restore previous system BIOS version. Otherwise, update the ME firmware version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

2233-HECI error during MEBx execution Error occurred during MEBx execution which

fails into “MEI or HECI” grouping.

2239-ME image lock failure Special system configurations with reduced

ME firmware image require BIOS control of ME firmware upgrading. A failure has occurred after the ME firmware update process in which the BIOS could not relock the ME firmware region.

2240-ME image unlock failure Special system configurations with reduced

ME firmware image require BIOS control of ME firmware upgrading. A failure has occurred prior to the ME firmware update process in which the BIOS could not unlock the ME firmware region.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

1. Reboot the computer.

2. If the error persists, update to the latest

BIOS version and ME firmware version.

3. If the error still persists, replace the

system board.

72 Appendix C POST Error Messages

Table C-1 Numeric Codes and Text Messages (continued)

Control panel message Description Recommended action

Invalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial number in Computer

Setup.

Network Server Mode Active and No Keyboard Attached

Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities.

Keyboard failure while Network Server Mode enabled.

1. Reconnect keyboard with computer

turned off.

2. Check connector for bent or missing

pins.

3. Ensure that none of the keys are

depressed.

4. Replace keyboard.

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes

During the system validation phase, the BIOS will validate the functionality of the CPU, memory, graphics, system board and all other platform components. Since the display may not be functional, the power button LED and the speaker will be used to indicate an error. The speaker will be used so that a support agent can detect the error code over the phone. The pattern of the blink/beep error indicator will be 1 blink/beep per second followed by a 2 second pause at the end of the sequence. The sequence will repeat for 5 cycles. After the 5 cycles are complete, only the blink will continue.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to

the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Test Failure Power

button LED

CPU CPU not functional 1 blink 1 beep

BIOS BIOS corruption 2 blinks 2 beeps

Memory Module error 3 blinks 3 beeps

Graphics No controller 4 blinks 4 beeps

System board Other failure 5 blinks 5 beeps

BIOS Authentication failure, if supported 6 blinks 6 beeps

Speaker

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes

D Password Security and Resetting

CMOS

This computer supports security password features, which can be established through the Computer Setup Utilities menu.

This computer supports two security password features that are established through the Computer Setup Utilities menu: setup password and power-on password. When you establish only a setup password, any user can access all the information on the computer except Computer Setup. When you establish only a power-on password, the power-on password is required to access Computer Setup and any other information on the computer. When you establish both passwords, only the setup password will give you access to Computer Setup.

When both passwords are set, the setup password can also be used in place of the power-on password as an override to log in to the computer. This is a useful feature for a network administrator.

If you forget the password for the computer, you can clear that password so you can gain access to the information on the computer by resetting the password jumper.

CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important to

back up the computer CMOS settings before resetting them in case they are needed later. Back up is easily done through Computer Setup. See backing up the CMOS settings.

Computer Setup (F10) Utility on page 54 for information on

74 Appendix D Password Security and Resetting CMOS

Resetting the Password Jumper

To disable the power-on or setup password features, or to clear the power-on or setup passwords, complete the following steps:

1. Shut down the operating system properly, then turn off the computer and any external devices,

and disconnect the power cord from the power outlet.

2. With the power cord disconnected, press the power button again to drain the system of any

residual power.

WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be

sure to disconnect the power cord from the wall outlet, and allow the internal system components to cool before touching.

CAUTION: When the computer is plugged in, the power supply always has voltage applied to

the system board even when the unit is turned off. Failure to disconnect the power cord can result in damage to the system.

Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. See the Safety & Regulatory Information guide for more information.

3. Remove the access panel.

4. Locate the header and jumper labeled CLR_PASS.

NOTE: The password jumper is blue so that it can be easily identified. For assistance locating

the password jumper and other system board components, see the Illustrated Parts & Service Map (IPSM). The IPSM can be downloaded from

5. Remove the jumper from pins 2 and 3.

6. Place the jumper on pins 1 or 2.

7. Put the jumper back on pins 2 or 3.

8. Replace the access panel.

9. Reconnect the external equipment.

10. Plug in the computer and turn on power. Allow the operating system to start. This clears the current

passwords and disables the password features.

11. To establish new passwords, use Computer Setup.

http://www.hp.com/support.

Clearing and Resetting the CMOS

The computer’s configuration memory (CMOS) stores information about the computer’s configuration.

The CMOS button resets CMOS but does not clear the power-on and setup passwords.

Resetting the Password Jumper

Clearing CMOS will clear the Active Management Technology (AMT) settings in the Management Engine BIOS Extension (MEBx), including the password. The password will default to “admin” and will need to be reset. The AMT settings will also need to be reset. To access the MEBx, press Ctrl+P during POST.

1. Shut down the operating system properly, then turn off the computer and any external devices,

and disconnect the power cord from the power outlet.

2. With the power cord disconnected, press the power button again to drain the system of any

residual power.

WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be

sure to disconnect the power cord from the wall outlet, and allow the internal system components to cool before touching.

CAUTION: When the computer is plugged in, the power supply always has voltage applied to

the system board even when the unit is turned off. Failure to disconnect the power cord can result in damage to the system.

3. Remove the access panel.

4. Locate the header and jumper labeled CLR_CMOS.

NOTE: The password jumper is blue so that it can be easily identified. For assistance locating

the password jumper and other system board components, see the Illustrated Parts & Service Map (IPSM). The IPSM can be downloaded from

5. Remove the jumper from pins 2 and 3.

6. Place the jumper on pins 1 or 2.

7. Put the jumper back on pins 2 or 3.

8. Replace the access panel.

9. Reconnect the external equipment.

10. Plug in the computer and turn on power. Allow the operating system to start. This clears the current

passwords and disables the password features.

NOTE: You will receive POST error messages after clearing CMOS and rebooting advising you that

configuration changes have occurred. Use Computer Setup to reset any special system setups along with the date and time.

For instructions on Computer Setup, see Computer Setup (F10) Utility on page 54.

http://www.hp.com/support.

76 Appendix D Password Security and Resetting CMOS

E Troubleshooting without

diagnostics

This chapter provides information on how to identify and correct minor problems, such as USB devices, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.

NOTE: For information on specific error messages that may appear on the screen during Power-On

Self-Test (POST) at startup, refer to Appendix A,

Safety and comfort

WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment

may result in discomfort or serious injury. Refer to the Safety & Comfort Guide at

ergo for more information on choosing a workspace and creating a safe and comfortable work

environment. For more information, refer to the Safety & Regulatory Information guide.

POST Error Messages on page 64.

http://www.hp.com/

Before you call for technical support

If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact problem before calling for technical support.

Run the HP diagnostic tool.

●

Run the hard drive self-test in Computer Setup. Refer to

●

for more information.

Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are

●

error codes that will help you diagnose the problem. Refer to Appendix A,

on page 64 for more information.

If the screen is blank, plug the monitor into a different video port on the computer if one is

●

available. Or, replace the monitor with a monitor that you know is functioning properly.

If you are working on a network, plug another computer with a different cable into the network

●

connection. There may be a problem with the network plug or cable.

If you recently added new hardware, remove the hardware and see if the computer functions

●

properly.

Computer Setup (F10) Utility on page 54

POST Error Messages

Safety and comfort

If you recently installed new software, uninstall the software and see if the computer functions

●

properly.

Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When

●

booting the operating system, use “Last Known Configuration.”

Refer to the comprehensive online technical support at

●

Refer to

●

To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at:

Access the Business Support Center (BSC) at support information, software and drivers, proactive notification, and worldwide community of peers and HP experts.

If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly:

Be in front of your computer when you call.

●

Write down the computer serial number, product ID number, and monitor serial number before

●

calling.

Spend time troubleshooting the problem with the service technician.

●

Remove any hardware that was recently added to your system.

●

Remove any software that was recently installed.

●

Helpful hints on page 78 in this guide.

http://www.hp.com/go/bizsupport for the latest online

http://www.hp.com/support.

http://www.hp.com/go/ispe.

Restore the system from the Recovery Disc Set that you created or restore the system to its original

●

factory condition in System Software Requirement Disks (SSRD).

CAUTION: Restoring the system will erase all data on the hard drive. Be sure to back up all data

files before running the restore process.

NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized service

provider or dealer.

Helpful hints

If you encounter problems with the computer, monitor, or software, see the following list of general suggestions before taking further action:

Check that the computer and monitor are plugged into a working electrical outlet.

●

Check that the voltage select switch (some models) is set to the appropriate voltage for your region

●

(115V or 230V).

Check that the computer is turned on and the white power light is on.

●

Check that the monitor is turned on and the green monitor light is on.

●

78 Appendix E Troubleshooting without diagnostics

Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are

●

error codes that will help you diagnose the problem. Refer to Appendix A,

on page 64 for more information.

Turn up the brightness and contrast controls of the monitor if the monitor is dim.

●

Press and hold any key. If the system beeps, then the keyboard should be operating correctly.

●

Check all cable connections for loose connections or incorrect connections.

●

Wake the computer by pressing any key on the keyboard or pressing the power button. If the

●

system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if it is set to power on automatically as soon as power is restored in Computer Setup. If it does not restart, press the power button to start the computer.

Reconfigure the computer after installing a non-plug and play expansion board or other option.

●

See

Solving Hardware Installation Problems on page 100 for instructions.

Be sure that all the needed device drivers have been installed. For example, if you are using a

●

printer, you need a driver for that model printer.

Remove all bootable media (CD/DVD or USB device) from the system before turning it on.

●

POST Error Messages

If you have installed an operating system other than the factory-installed operating system, check

●

to be sure that it is supported on the system.

If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed

●

(embedded video on some models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors are disabled and if the monitor is connected into these ports, the monitor will not function. You can select which source will be the default VGA source in Computer Setup.

CAUTION: When the computer is plugged into an AC power source, there is always voltage

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.

Helpful hints

Solving general problems

You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to

Computer appears locked up and will not turn off when the power button is pressed.

Cause Solution

Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds

Computer will not respond to keyboard or mouse.

Cause Solution

until the computer turns off.

2. Disconnect the power cord from the electrical outlet.

Computer is in Sleep state. To resume from Sleep state, press the power button.

CAUTION: When attempting to resume from Sleep state,

do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

System has locked up. Restart computer.

Computer date and time display is incorrect.

Cause Solution

RTC (real-time clock) battery may need to be replaced.

NOTE: Connecting the computer to a live AC outlet

prolongs the life of the RTC battery.

Reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.

To access Control Panel in Windows 7, select Start, and then select Control Panel.

To access Control Panel in Windows 8, from the Start screen, type c, and then select Control Panel from the list of applications.

80 Appendix E Troubleshooting without diagnostics

Cursor will not move using the arrow keys on the keypad.

Cause Solution

The Num Lock key is turned on. Press the Num Lock key. The Num Lock light must be off if you

want to use the arrow keys on the keypad. You can also disable or enable the Num Lock key in Computer Setup at

Advanced > Device Options.

There is no sound or sound volume is too low.

Cause Solution

System volume may be set low or muted. 1. Check the Computer Setup settings to make sure the

internal system speaker is not muted (this setting does not affect the external speakers).

2. Make sure the external speakers are properly connected

and powered on and that the speakers' volume control is set correctly.

3. Use the system volume control available in the operating

system to make sure the speakers are not muted or to increase the volume.

Cannot remove computer cover or access panel.

Cause Solution

Smart Cover Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.

In case of forgotten password, power loss, or computer malfunction, you must manually disable the Smart Cover lock . A key to unlock the Smart Cover Lock is not available from HP. Keys are typically available from a hardware store.

Poor performance.

Cause Solution

Processor is too hot. 1. Make sure airflow to the computer is not blocked. Leave

a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.

2. Make sure fans are connected and working properly

(some fans only operate when needed).

3. Make sure the processor heat sink is installed properly.

Hard drive is full. Transfer data from the hard drive to create more space on the

hard drive.

Low on memory. Add more memory.

Solving general problems

Poor performance.

Cause Solution

Hard drive fragmented. Defragment hard drive.

Program previously accessed did not release reserved memory back to the system.

Virus resident on the hard drive. Run virus protection program.

Too many applications running. Windows 7:

Restart the computer.

1. Close unnecessary applications to free up memory.

2. Add more memory.

3. Some applications run in the background and can be

closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup:

In Windows 7:

a. Go to Start > All Programs > Accessories >

Run

b. Type msconfig, and then press Enter.

c. On the Startup tab of the System Configuration

Utility, clear applications that you do not want to launch automatically, and the click OK.

In Windows 8:

a. On the Start screen, right-click, and then select the

All apps icon.

b. Under Windows System, click Run.

c. Type msconfig, and then press Enter.

d. On the Startup tab of the System Configuration

Utility, clear applications that you do not want to launch automatically, and the click OK.

Some software applications, especially games, are stressful on the graphics subsystem.

Cause unknown. Restart the computer.

1. Lower the display resolution for the current application or

consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application.

2. Add more memory.

3. Upgrade the graphics solution.

82 Appendix E Troubleshooting without diagnostics

Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing).

Cause Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

The heat sink is not properly attached to the processor.

System does not power on and the LEDs on the front of the computer are not flashing.

Cause Solution

System unable to power on. Press and hold the power button for less than 4 seconds. If the

1. Ensure that the computer air vents are not blocked and

the processor cooling fan is running.

2. Open the access panel, press the power button, and see

if the processor fan (or other system fan) spins. If the fan does not spin, make sure the fan cable is plugged onto the system board header.

3. If fan a plugged in and not spinning, replace it.

hard drive LED turns white, then:

1. If equipped with a voltage selector, check that the

voltage selector (located on the rear of the power supply) is set to the appropriate voltage. Proper voltage setting depends on your region.

2. Remove the expansion cards one at a time until the

5V_aux light on the system board turns on.

3. Replace the system board.

Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on white then:

1. Check that the unit is plugged into a working AC outlet.

2. Open the access panel and check that the power button

cable is properly connected to the system board.

3. Check that the power supply cables are properly

connected to the system board.

4. Check to see if the 5V_aux light on the system board is

turned on. If it is turned on, then replace the power button assembly.

5. If the 5V_aux light on the system board is off, then

replace the power supply.

6. Replace the system board.

Solving general problems

Solving power problems

Common causes and solutions for power problems are listed in the following table.

Power supply shuts down intermittently.

Cause Solution

If equipped with a voltage selector, voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V).

Power supply will not turn on because of internal power supply fault.

Cause Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

The heat sink is not properly attached to the processor.

Select the proper AC voltage using the selector switch.

Replace the power supply.

1. Ensure that the computer air vents are not blocked and

the processor cooling fan is running.

2. Open the access panel, press the power button, and see

if the processor fan (or other system fan) spins. If the fan does not spin, make sure the fan cable is plugged onto the system board header.

3. If fan a plugged in and not spinning, replace it.

84 Appendix E Troubleshooting without diagnostics

Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause Solution

Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the

voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region.

2. Open the access panel and ensure the power supply

cable is seated into the connector on the system board.

3. Check if a device is causing the problem by removing

ALL attached devices (such as hard drives or optical drives and expansion cards). Power on the system. If the system enters POST, then power off and replace one device at a time and repeat this procedure until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly.

4. Replace the power supply.

5. Replace the system board.

Solving hard drive problems

Hard drive error occurs.

Cause Solution

Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and right-

click on a drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now.

In Windows 8, on the Start screen type e, and then select File Explorer from the list of applications. In the left column, expand Computer, right-click on a drive, select Properties, and then select the Tools tab. Under

Error checking click Check.

2. Use a utility to locate and block usage of bad sectors. If

necessary, reformat the hard disk.

Solving hard drive problems

Disk transaction problem.

Cause Solution

Either the directory structure is bad or there is a problem with a file.

Drive not found (identified).

Cause Solution

Cable could be loose. Check cable connections.

The system may not have automatically recognized a newly installed device.

In Windows 7, click Start, expand Computer, and rightclick on a drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now.

In Windows 8, on the Start screen type e, and then click File Explorer from the list of applications. In the left column, expand Computer, right-click on a drive, select Properties, and then select the Tools tab. Under Error checking click Check.

See reconfiguration directions in the

Installation Problems on page 100 section. If the system still

does not recognize the new device, check to see if the device is listed within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem.

If this is a newly installed drive, run the Computer Setup utility and try adding a POST delay under Advanced > Power- On Options.

Solving Hardware

The device is attached to a SATA port that has been hidden in Computer Setup.

Drive responds slowly immediately after power-up. Run Computer Setup and increase the POST Delay in

Nonsystem disk/NTLDR missing message.

Cause Solution

The system is trying to start from the hard drive but the hard drive may have been damaged.

System files missing or not properly installed. 1. Insert bootable media and restart the computer.

Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive entry

Run the Computer Setup utility and ensure Device Available is selected for the device's SATA port in Security > Device

Security.

Advanced > Power-On Options.

1. Perform Drive Protection System (DPS) testing in F2

Diagnostics (reboot the computer and press F2 before the operating system starts).

2. Boot to the windows installation media and select the

recovery option. If only a restore kit is available, then select the File Backup Program option, and then restore the system.

3. Install system files for the appropriate operating system.

in the Storage > Boot Order list.

86 Appendix E Troubleshooting without diagnostics

Nonsystem disk/NTLDR missing message.

Cause Solution

Bootable hard drive is not attached as first in a multi-hard drive configuration.

Bootable hard drive is not listed first in the Boot Order. Run the Computer Setup utility and select Storage > Boot

Computer will not boot from hard drive.

Cause Solution

The device is attached to a SATA port that has been hidden in Computer Setup.

Boot order is not correct. Run the Computer Setup utility and change boot sequence in

Hard Drive's “Emulation Type” is set to “None.” (some models)

Hard drive is damaged. Observe if the front panel Power LED is blinking RED and if

If attempting to boot from a hard drive, ensure it is attached to the system board dark blue SATA connector.

Order and ensure the bootable hard drive is listed immediately under the Hard Drive entry.

1. Check SATA cable connections.

2. Run the Computer Setup utility and ensure Device

Available is selected for the device's SATA port in Security > Device Security.

Storage > Boot Order.

Run the Computer Setup utility and change the “Emulation Type” to “Hard Disk” in the device's details under Storage > Device Configuration.

any beeps are heard. See Appendix A,

on page 64 to determine possible causes for the blinking red

and beep codes.

POST Error Messages

See the Worldwide Limited Warranty for terms and conditions.

Computer seems to be locked up.

Cause Solution

Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not

respond.

2. Attempt the normal Windows “Shut Down” procedure. If

this fails, press the power button for four or more seconds to turn off the power. To restart the computer, press the power button again.

Solving hard drive problems

Solving media card reader problems

Media card will not work in a digital camera after formatting it in Windows.

Cause Solution

By default, Windows will format any media card with a capacity greater than 32MB with the FAT32 format. Some digital cameras use the FAT (FAT16 & FAT12) format and can not operate with a FAT32 formatted card.

A write-protected or locked error occurs when attempting to write to the media card.

Cause Solution

Media card is locked. Locking the media card is a safety feature that prevents writing to and deleting from an SD/ Memory Stick/PRO card.

Can not write to the media card.

Cause Solution

The media card is a read-only memory (ROM) card. Check the manufacturer’s documentation included with your

Either format the media card in the digital camera or select FAT file system to format the media card in a computer with Windows.

If using an SD card, make sure that the lock tab located on the right of the SD card is not in the locked position. If using a Memory Stick/PRO card, make sure that the lock tab located on the bottom of the Memory Stick/PRO card is not in the locked position.

card to see if it writable. Refer to the previous section for a list of compatible cards.

Media card is locked. Locking the media card is a safety feature that prevents writing to and deleting from an SD/ Memory Stick/PRO card.

Unable to access data on the media card after inserting it into a slot.

Cause Solution

The media card is not inserted properly, is inserted in the wrong slot, or is not supported.

Ensure that the card is inserted properly with the gold contact on the correct side. The green LED will light if inserted properly.

88 Appendix E Troubleshooting without diagnostics

Do not know how to remove a media card correctly.

Cause Solution

The computer’s software is used to safely eject the card. In Windows 7, click Start, select Computer, right-click on

the corresponding drive icon, and then select Eject. Pull the card out of the slot.

In Windows 8, on the Start screen, type e, and then click File Explorer from the list of applications. Expand Computer, right-click on the corresponding drive icon, and then select

Eject. Pull the card out of the slot.

NOTE: Never remove the card when the green LED is

flashing

After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the computer.

Cause Solution

The operating system needs time to recognize the device if the reader was just installed into the computer and you are turning the PC on for the first time.

After inserting a media card in the reader, the computer attempts to boot from the media card.

Cause Solution

The inserted media card has boot capability. 1. If you do not want to boot from the media card, remove

Solving display problems

If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table.

Wait a few seconds so that the operating system can recognize the reader and the available ports, and then recognize the media inserted in the reader.

it during boot or do not select the option to boot from the inserted media card during the boot process.

2. During POST (Power On Self-Test), press F9 to modify the

boot menu.

3. Change the boot sequence in F10 Computer Setup.

Blank screen (no video).

Cause Solution

Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.

Bad monitor. Try a different monitor.

The cable connections are not correct. Check the cable connection from the monitor to the computer

and to the electrical outlet.

Solving display problems

Blank screen (no video).

Cause Solution

You may have a screen blanking utility installed or energy saver features are enabled.

System ROM is corrupted; system is running in Boot Block Emergency Recovery Mode (indicated by eight beeps).

You are using a fixed-sync monitor and it will not sync at the resolution chosen.

Computer is in Sleep state. Press the power button to resume from Sleep state.

Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the

Monitor settings in the computer are not compatible with the monitor.

Press any key or click the mouse button and type your password (if set).

Reflash the system ROM with the latest BIOS image.

Be sure that the monitor can accept the same horizontal scan rate as the resolution chosen.

CAUTION: When attempting to resume from Sleep state,

do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

motherboard or an add-in card. Try moving the monitor connection to a different connector on the back of the computer

1. In Control Panel, select Category from the View by

list, then under Appearance and Personalization, select Adjust screen resolution.

To access Control Panel in Windows 7, click Start, and then select Control Panel.

To access Control Panel in Windows 8, from the Start screen, type c, and then select Control Panel from the list of applications.

2. Expand the Resolution box, and then use the sliding

control to reset the resolution.

Monitor is configured to use an input that is not active. Use the monitor's on-screen menu controls to select the input

that is being driven by the system. Refer to the monitor's user documentation for more information on the on-screen controls and settings.

Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause Solution

Pre-video memory error. 1. Reseat DIMMs. Power on the system.

2. Replace DIMMs one at a time to isolate the faulty

module.

3. Replace third-party memory with HP memory.

4. Replace the system board.

90 Appendix E Troubleshooting without diagnostics

Blank screen and the power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause Solution

Pre-video graphics error. For systems with a graphics card:

1. Reseat the graphics card (if applicable). Power on the

system.

2. Replace the graphics card (if applicable).

3. Replace the system board.

For systems with integrated graphics, replace the system board.

Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause Solution

System board failure (ROM detected failure prior to video). Replace the system board.

Monitor does not function properly when used with energy saver features.

Cause Solution

Monitor without energy saver capabilities is being used with energy saver features enabled.

Dim characters.

Cause Solution

The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.

Cables are not properly connected. Check that the graphics cable is securely connected to the

Blurry video or requested resolution cannot be set.

Cause Solution

If the graphics controller was upgraded, the correct graphics drivers may not be loaded.

Disable monitor energy saver feature.

graphics card (if applicable) or video connector and the monitor.

Install the video drivers included in the upgrade kit.

Monitor is not capable of displaying requested resolution. Change requested resolution.

Graphics card is bad. Replace the graphics card.

Solving display problems

The picture is broken up, rolls, jitters, or flashes.

Cause Solution

The monitor connections may be incomplete or the monitor may be incorrectly adjusted.

Monitor needs to be degaussed. Degauss the monitor. Refer to the documentation that came

Image is not centered.

Cause Solution

Position may need adjustment. Press the monitor's Menu button to access the OSD menu.

“No Connection, Check Signal Cable” displays on screen.

1. Be sure the monitor cable is securely connected to the

computer.

2. In a two-monitor system or if another monitor is in close

proximity, be sure the monitors are not interfering with each other’s electromagnetic field by moving them apart.

3. Fluorescent lights or fans may be too close to the

monitor.

with the monitor for instructions.

Select ImageControl/ Horizontal Position or Vertical Position to adjust the horizontal or vertical position of the image.

Cause Solution

Monitor video cable is disconnected. Connect the video cable between the monitor and computer.

CAUTION: Ensure that the computer power is off while

connecting the video cable.

92 Appendix E Troubleshooting without diagnostics

HP 200 G1 Service and Maintain

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Product description

2 Product features

Front components

Rear components

Activating and customizing the software in Windows 7

Activating the Windows operating system

Downloading Windows 7 updates

Installing or upgrading device drivers

Customizing the monitor display

Activating and customizing the software in Windows 8

Activating the Windows Operating System

Downloading Windows 8 updates

Customizing the monitor display

4 Illustrated parts catalog

Computer Major Components

Cables

Misc Parts

Drives

Sequential Part Number Listing

Electrostatic discharge information

Generating static

Preventing electrostatic damage to equipment

Personal grounding methods and equipment

Grounding the work area

Recommended materials and equipment

Operating guidelines

Routine care

General cleaning safety precautions

Cleaning the Computer Case

Cleaning the keyboard

Cleaning the monitor

Cleaning the mouse

Service considerations

Power supply fan

Tools and software Requirements

Screws

Cables and connectors

Hard Drives

Lithium coin cell battery

SATA hard drives

SATA hard drive cables

SATA data cable

SMART ATA drives

Cable management

Serviceability features

Preparation for disassembly

Access panel

Front bezel

Memory

DDR3L-SDRAM SODIMMs

Populating DIMM sockets

Removing memory modules

Expansion cards

Cable management

Cable connections

Drives

Installing additional drives

System board drive connections

Removing an optical drive

Removing a hard drive

Front I/O and USB panel housing assembly

Power switch/LED assembly

Speaker

Power supply

System board

Battery

A Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Using Computer Setup (F10) Utilities

Computer Setup—File

Computer Setup—Storage

Computer Setup—Security

Computer Setup—Power

Computer Setup—Advanced

B Power cord set requirements

General requirements