HP dx2450 User Manual

Service Reference Guide

HP Compaq dx2450 Business PC

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.

Service Reference Guide

Business PCs

First Edition (March 2008)

Document Part Number: 484988-001

Table of contents

1 Installing and Customizing the Software

Installing the Operating System ........................................................................................................... 1

Installing or Upgrading Device Drivers ................................................................................................. 1

HP Backup and Recovery Manager ..................................................................................................... 2

2 Computer Setup (F10) Utility

Computer Setup (F10) Utilities ............................................................................................................. 3

Using Computer Setup (F10) Utilities .................................................................................. 3

Computer Setup—Main ....................................................................................................... 4

Computer Setup—Advanced ............................................................................................... 5

Computer Setup—Power ..................................................................................................... 6

Computer Setup—Boot ........................................................................................................ 7

Computer Setup—Exit ......................................................................................................... 7

Recovering the Configuration Settings ................................................................................................. 8

3 Computer Diagnostic Features

HP Insight Diagnostics ......................................................................................................................... 9

Accessing HP Insight Diagnostics ....................................................................................... 9

Survey Tab ........................................................................................................................ 10

Test Tab ............................................................................................................................. 11

Status Tab ......................................................................................................................... 11

Log Tab .............................................................................................................................. 12

Help Tab ............................................................................................................................ 12

Saving and Printing Information in HP Insight Diagnostics ................................................ 13

Downloading the Latest Version of HP Insight Diagnostics ............................................... 13

Protecting the Software ...................................................................................................................... 13

HP Backup and Recovery Manager ................................................................................................... 14

4 Serial and Parallel ATA Drive Guidelines and Features

SATA Hard Drives .............................................................................................................................. 15

SATA Hard Drive Cables .................................................................................................................... 16

SATA Data Cable .............................................................................................................. 16

SATA Power Cable ............................................................................................................ 16

PATA Device Information ................................................................................................................... 17

ATA SMART Drives ............................................................................................................................ 17

Hard Drive Capacities ........................................................................................................................ 17

5 Identifying the Chassis, Routine Care, and Disassembly Preparation

iii

Chassis Designation ........................................................................................................................... 18

Microtower (MT) ................................................................................................................. 18

Electrostatic Discharge Information .................................................................................................... 19

Generating Static ............................................................................................................... 19

Preventing Electrostatic Damage to Equipment ................................................................ 19

Personal Grounding Methods and Equipment ................................................................... 20

Grounding the Work Area .................................................................................................. 20

Recommended Materials and Equipment .......................................................................... 20

Operating Guidelines .......................................................................................................................... 21

Routine Care ...................................................................................................................................... 22

General Cleaning Safety Precautions ................................................................................ 22

Cleaning the Computer Case ............................................................................................ 22

Cleaning the Keyboard ...................................................................................................... 22

Cleaning the Monitor .......................................................................................................... 23

Cleaning the Mouse ........................................................................................................... 23

Service Considerations ...................................................................................................................... 23

Power Supply Fan ............................................................................................................. 23

Tools and Software Requirements .................................................................................... 23

Screws ............................................................................................................................... 24

Cables and Connectors ..................................................................................................... 24

Hard Drives ........................................................................................................................ 24

Lithium Coin Cell Battery ................................................................................................... 25

6 Removal and Replacement Procedures Microtower (MT) Chassis

Serial Number Location ...................................................................................................................... 26

Preparation for Disassembly .............................................................................................................. 27

External Security Devices .................................................................................................................. 28

Cable Lock ......................................................................................................................... 28

Padlock .............................................................................................................................. 28

HP Business PC Security Lock .......................................................................................... 29

Computer Access Panel ..................................................................................................................... 31

Front Bezel ......................................................................................................................................... 32

Removing Bezel Blanks ..................................................................................................................... 33

Cable Management ............................................................................................................................ 34

Cable Connections ............................................................................................................ 35

Memory .............................................................................................................................................. 36

Expansion Cards ................................................................................................................................ 39

Drives ................................................................................................................................................. 43

System Board Drive Connections ...................................................................................... 44

Drive Positions ................................................................................................................... 45

Removing an Optical Drive ................................................................................................ 46

Installing an Optical Drive into the 5.25-inch Drive Bay ..................................................... 47

Removing an External 3.5-inch Drive ................................................................................ 48

Installing a Drive into the 3.5-inch External Drive Bay ....................................................... 50

Removing an Internal 3.5-inch Hard Drive ......................................................................... 52

Installing an Internal 3.5-inch Hard Drive ........................................................................... 54

Front USB Panel ................................................................................................................................ 57

Power Switch/LED Assembly ............................................................................................................. 58

Heatsink ............................................................................................................................................. 59

Processor ........................................................................................................................................... 61

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

Rear Chassis Fan ............................................................................................................................... 63

Power Supply ..................................................................................................................................... 64

System Board ..................................................................................................................................... 65

Battery ................................................................................................................................................ 66

Type 1 Battery Holder ........................................................................................................ 67

Type 2 Battery Holder ........................................................................................................ 67

Type 3 Battery Holder ........................................................................................................ 68

Appendix A Connector Pin Assignments

Keyboard ............................................................................................................................................ 69

Mouse ................................................................................................................................................. 69

Ethernet BNC ..................................................................................................................................... 69

Ethernet RJ-45 ................................................................................................................................... 70

Ethernet AUI ....................................................................................................................................... 70

Parallel Interface ................................................................................................................................ 71

Serial Interface, Powered and Non-Powered ..................................................................................... 71

USB .................................................................................................................................................... 72

Microphone ......................................................................................................................................... 72

Headphone ......................................................................................................................................... 72

Line-in Audio ...................................................................................................................................... 72

Line-out Audio .................................................................................................................................... 72

External Infrared Transceiver ............................................................................................................. 73

Monitor ............................................................................................................................................... 73

ATA/ATAPI (IDE) Standard Drive Cable ............................................................................................ 74

CD-ROM 50-Pin Connector ................................................................................................................ 75

24-Pin Power ...................................................................................................................................... 75

24-Pin MicroFit Power ........................................................................................................................ 76

4-Pin Power (for CPU) ........................................................................................................................ 76

6-Pin Power (for CPU) ........................................................................................................................ 76

SATA Data and Power ....................................................................................................................... 77

PCI Express ...................................................................................................................................... 77

PCI Express ....................................................................................................................................... 78

PCI Express Mini Card ....................................................................................................................... 79

DVI Connector .................................................................................................................................... 80

Appendix B Power Cord Set Requirements

General Requirements ....................................................................................................................... 81

Japanese Power Cord Requirements ................................................................................................ 81

Country-Specific Requirements .......................................................................................................... 82

Appendix C Troubleshooting

Safety and Comfort ............................................................................................................................ 83

Before You Call for Technical Support ............................................................................................... 83

Helpful Hints ....................................................................................................................................... 84

Solving General Problems .................................................................................................................. 85

Solving Hardware Installation Problems ............................................................................................. 88

Interpreting POST Audible Codes ...................................................................................................... 90

Contacting Customer Support ............................................................................................................ 91

Appendix D System Board and Riser Board Reference Designators

............................................................................................................................................................ 92

Appendix E Specifications

Index ................................................................................................................................................................. 100

1 Installing and Customizing the Software

NOTE: If the computer was shipped with Windows Vista loaded, you will be prompted to register the

computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen.

CAUTION: Do not add optional hardware or third-party devices to the computer until the operating

system is successfully installed. 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.

Installing the Operating System

The first time you turn on the computer, the operating system is installed automatically. This process takes about 5 to 10 minutes, depending on which operating system is being installed. Carefully read and follow the instructions on the screen to complete the installation.

CAUTION: Once the automatic installation has begun, DO NOT TURN OFF THE COMPUTER UNTIL

THE PROCESS IS COMPLETE. Turning off the computer during the installation 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

installation process could take up to 60 minutes.

If your computer was not shipped with a Microsoft operating system, some portions of this documentation do not apply. Additional information is available in online help after you install the operating system.

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.

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, enter the model number of the computer, and press Enter.

Installing the Operating System 1

HP Backup and Recovery Manager

The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived separately from regular backups.

HP Backup and Recovery Manager is preinstalled on the C: drive and creates a Recovery Partition.

Recovery Points and file backups can be copied to CD or DVD discs, while all backups can be copied to network or secondary hard disks.

HP highly recommends that you create a Recovery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups.

To create the Recovery Disc Set:

1. Click Start > HP Backup and Recovery > HP Backup and Recovery Manager to open the

Backup and Recovery Wizard, then click Next.

2. Select Create a set of recovery discs (Recommended) and click Next.

3. Follow the instructions in the wizard.

For more information on using HP Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start > HP Backup and Recovery > HP Backup and Recovery

Manager Manual.

NOTE: You can order a Recovery Disc Set from HP by calling the HP support center. Go to the

following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region.

http://welcome.hp.com/country/us/en/wwcontact_us.html

2 Chapter 1 Installing and Customizing the Software

2 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 graphics, audio, storage,

●

communications, and input devices.

View settings for processor and memory.

●

Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or

●

USB flash media devices.

Restrict a device from booting the unit.

●

Run hard drive self-tests.

●

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

●

settings described in this section.

Enable or disable removable media boot ability.

●

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. As soon as the computer is turned on, press F10 when the monitor light turns green to enter

Computer Setup.

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

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

3. The Computer Setup Utility screen is divided into menu headings and actions.

Five menu headings appear on the Computer Setup Utility screen:

Main

●

Advanced

Power

Computer Setup (F10) Utilities 3

Boot

●

Exit

●

Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and down) keys to select the option you want, then press Enter. To return to the previous screen, press Esc.

CAUTION: Do NOT turn the computer power OFF while the ROM 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—Main

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

configuration.

Table 2-1 Computer Setup—Main

Option Description

System Time Allows you to set system time.

System Date Allows you to set system date.

Language Allows you to select language.

Floppy Diskette A: Allows you to set drive A to:

Disabled

●

1.44 MB 3.5”

●

Not Installed

●

1st Drive

2nd Drive

3rd Drive

4th Drive

System Information (view only)

For each, allows you to:

(view only)

●

◦

Smart Support - run HDD self-test for selected channel:

●

◦

Installed Memory

●

Memory Bank 1

●

Capacity (Size - HDD only)

Transfer Mode

SATA Speed

NCQ

SMART Status Check

SMART Short Self-Test

SMART Extended Self-Test

Memory Bank 2

●

Memory Bank 3

●

4 Chapter 2 Computer Setup (F10) Utility

Memory Bank 4

●

BIOS Revision

●

Core Version

●

Model Number

●

Product Number

●

Asset Tag (press Enter to change)

●

Computer Setup—Advanced

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

configuration.

WARNING! Setting items on this menu to incorrect values may cause your system to malfunction.

Table 2-2 Computer Setup—Advanced

Option Description

CPU Type (view only)

CPU Speed (view only)

Cache RAM (L2) (view only)

Cache RAM (L3) (view only - some models)

Primary Video Adapter Allows you to select the boot display device when more than 2 video options are offered by the

system:

PCI

●

PCI-Ex1

●

PCI-Ex16

●

Onboard

●

Onboard Video Memory Size

PS/2 Mouse Allows you to set:

USB Legacy Mode Support

32MB

●

128MB

●

256MB

●

Disabled

●

Enabled

●

Auto Detect

●

Allows you to set:

Disabled

●

Enabled

●

Onboard LAN Allows you to disable/enable onboard LAN controller.

Computer Setup (F10) Utilities 5

Table 2-2 Computer Setup—Advanced (continued)

Onboard LAN Boot ROM

SATA Controller Allows you to set:

Onboard Audio Allows you to set the onboard audio to:

Internal Speaker Allows you to set the internal speaker to:

Supervisor Password Allows you to change supervisor password.

User Password Allows you to change the user password.

Allows you to disable/enable the boot ROM of the onboard LAN chip.

Disabled

●

SATA1

●

SATA1+2

●

Auto

●

Disabled

●

Enabled

●

Disabled

●

Enabled

●

Computer Setup—Power

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

configuration.

Table 2-3 Computer Setup—Power

Option Description

After AC Power Failure Allows you to select system restart behavior after power loss:

●

NX Disables/enables NX bit.

Auto

Power On

Stay Off

6 Chapter 2 Computer Setup (F10) Utility

Computer Setup—Boot

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

configuration.

Table 2-4 Computer Setup—Boot

Option Description

Boot-time Diagnostic Screen

1st Boot Device

2nd Boot Device

3rd Boot Device

4th Boot Device

Floppy Group Boot Priority

CD-ROM Group Boot Priority

Hard Drive Group Boot Priority

Network Group Boot Priority

Disables/enables POST diagnostic messages display.

Allows you to specify which device groups will boot first, second, third, and fourth or to disable any of the four:

Floppy Group

●

Hard Drive Group

●

CD-ROM Group

●

Network Boot Group

●

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

has started.

Specifies boot device priority within removable devices.

Specifies boot device priority within CD/DVD drives.

Specifies boot device priority within hard drives.

Specifies boot device priority within bootable network devices.

Computer Setup—Exit

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

configuration.

Table 2-5 Computer Setup—Exit

Option Description

Exit Saving Changes Press Enter to exit saving changes.

Exit Discarding Changes

Load Setup Defaults Press Enter to load setup defaults.

Discard Changes Press Enter to discard changes.

Save Changes Press Enter to save changes.

Press Enter to exit discarding changes.

Computer Setup (F10) Utilities 7

Recovering the Configuration Settings

To reset all BIOS Setup options to their default values (including options for ctrl+F10), you must enter F10 Setup mode and press F5.

This does not include updates to system date, system time, supervisor password, user password, and CPU frequency multiplier.

8 Chapter 2 Computer Setup (F10) Utility

3 Computer Diagnostic Features

HP Insight Diagnostics

NOTE: HP Insight Diagnostics is included on CD with some computer models only.

The HP Insight Diagnostics utility allows you to view information about the hardware configuration of the computer and perform hardware diagnostic tests on the subsystems of the computer. The utility simplifies the process of effectively identifying, diagnosing, and isolating hardware issues.

The Survey tab is displayed when you invoke HP Insight Diagnostics. This tab shows the current configuration of the computer. From the Survey tab, there is access to several categories of information about the computer. Other tabs provide additional information, including diagnostic test options and test results. The information in each screen of the utility can be saved as an html file and stored on a diskette or USB HP Drive Key.

Use HP Insight Diagnostics to determine if all the devices installed on the computer are recognized by the system and functioning properly. Running tests is optional but recommended after installing or connecting a new device.

You should run tests, save the test results, and print them so that you have printed reports available before placing a call to the Customer Support Center.

NOTE: Third party devices may not be detected by HP Insight Diagnostics.

Accessing HP Insight Diagnostics

To access HP Insight Diagnostics, you must create a Recovery Disc Set then boot to the CD containing the utility. It can also be downloaded from

HP Insight Diagnostics on page 13 for more information.

NOTE: HP Insight Diagnostics is included as part of the Recovery Disk Set with some computer

models only.

If you have already created a Recovery Disc Set, begin the following procedure at step 4.

1. Click Start > HP Backup and Recovery > HP Backup and Recovery Manager to open the

Backup and Recovery Wizard, then click Next.

2. Select Create a set of recovery discs (Recommended) and click Next.

3. Follow the instructions in the wizard to create a Recovery Disc Set.

4. Use Windows Explorer to search the Recovery Disc Set for the CD with the compaq\hpdiags

directory.

http://www.hp.com. See Downloading the Latest Version of

5. While the computer is on, insert the CD into an optical drive on the computer.

HP Insight Diagnostics 9

6. Shut down the operating system and turn off the computer.

7. Turn on the computer. The system will boot to the CD.

8. Select the appropriate language and click Continue.

9. In the End User License Agreement page, click Agree if you agree with the terms. The HP Insight

Survey Tab

The Survey tab displays important system configuration information.

In the View level field, you can select the Summary view to see limited configuration data or select the Advanced view to see all the data in the selected category.

In the Category field, you can select the following categories of information to display:

NOTE: If the system does not boot to the CD in the optical drive, you may need to change the

boot order in the Computer Setup (F10) utility so that the system attempts to boot to the optical drive before booting to the hard drive. Refer to information.

NOTE: It is recommended that you accept the assigned default keyboard for your language

unless you want to test your specific keyboard.

Diagnostics utility launches with the Survey tab displayed.

Computer Setup (F10) Utility on page 3 for more

All—Gives a listing of all categories of information about the computer.

Overview—Gives you a listing of general information about the computer.

Architecture—Provides system BIOS and PCI device information.

Asset Control—Shows product name, asset tag, system serial number, and processor information.

Communication—Shows information about the computer parallel (LPT) and serial (COM) port settings,

plus USB and network controller information.

Graphics—Shows information about the graphics controller of the computer.

Input Devices—Shows information about the keyboard, mouse, and other input devices connected to

the computer.

Memory—Shows information about all memory in the computer. This includes memory slots on the system board and any memory modules installed.

Miscellaneous—Shows HP Insight Diagnostics version information, computer configuration memory (CMOS) information, system board data, and system management BIOS data.

Storage—Shows information about storage media connected to the computer. This list includes all fixed disks, diskette drives, and optical drives.

System—Shows information about the computer model, processor, chassis, and BIOS, plus internal speaker and PCI bus information.

10 Chapter 3 Computer Diagnostic Features

Test Tab

The Test tab allows you to choose various parts of the system to test. You can also choose the type of test and testing mode.

There are three types of tests to choose from:

●

For each test type, there are two test modes to choose from:

●

To begin testing:

Quick Test—Provides a predetermined script where a sample of each hardware component is exercised and requires no user intervention in either Unattended or Interactive mode.

Complete Test—Provides a predetermined script where each hardware component is fully tested. There are more tests available in the Interactive mode, but these require user intervention.

Custom Test—Provides the most flexibility in controlling the testing of a system. The Custom Test mode allows you to specifically select which devices, tests, and test parameters are run.

Interactive Mode—Provides maximum control over the testing process. The diagnostic software will prompt you for input during tests that require your interaction. You may also determine whether the test passed or failed.

Unattended Mode—Does not display prompts and requires no interaction. If errors are found, they are displayed when testing is complete.

1. Select the Test tab.

2. Select the tab for the type of test you want to run: Quick, Complete, or Custom.

3. Select the Test Mode: Interactive or Unattended.

4. Choose how you want the test to be executed, either Number of Loops or Total Test Time. When

5. If performing a Quick Test or Complete Test, select the device to be tested from the drop-down

6. Click the Begin Testing button at the bottom right corner of the screen to start the test. The Status

7. If errors are found, go to the Log tab and click the Error Log to display more detailed information

Status Tab

The Status tab displays the status of the selected tests. The type of test executed (Quick, Complete, or Custom) is also displayed. The main progress bar displays the percent complete of the current set of tests. While testing is in progress, a Cancel Testing button is displayed for use if you want to cancel the test.

choosing to run the test over a specified number of loops, enter the number of loops to perform. If you desire to have the diagnostic test for a specified time period, enter the amount of time in minutes.

list. If performing a Custom Test, Click the Expand button and select the devices to be tested or click the Check All button to select all devices.

tab, which allows you to monitor the progress of the test, is automatically displayed during the testing process. When the test is complete, the Status tab shows whether the device passed or failed.

and recommended actions.

HP Insight Diagnostics 11

After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without having to re-enter the data in the Test tab.

The Status tab also shows:

●

Log Tab

The Log tab contains a Test Log tab and an Error Log tab.

The Test Log displays all tests that have been executed, the number of times of execution, the number of times failed, and the time it took to complete each test. The Clear Test Log button will clear the contents of the Test Log.

The Error Log displays the tests for devices that have failed during the diagnostic testing and includes the following columns of information.

The devices being tested

The test status (running, passed, or failed) of each device being tested

The overall test progress of all devices being tested

The test progress for each device being tested

The elapsed test times for each device being tested

●

The Clear Error Log button will clear the contents of the Error Log.

Help Tab

On the Help tab contains an HP Insight Diagnostics tab, an Error Codes tab, and a Test Components tab.

The HP Insight Diagnostics tab contains help topics and includes search and index features.

The Error Codes tab provides a description of each numerical error code that may appear in the Error

Log tab located on the Log tab. Each code has a corresponding error Message and a Recommended Repair action that should help solve the problem. To find an error code description quickly, enter the

code in the box at the top of the tab and click the Find Error Codes button.

The Device section displays the device tested.

The Test section displays the type of test run.

The Description section describes the error that the diagnostic test found.

The Recommended Repair will give a recommended action that should be performed to resolve the failed hardware.

The Failed Count is the number of times the device has failed a test.

The Error Code provides a numerical code for the failure. The error codes are defined in the Help tab.

The Test Components tab displays low-level information on tests that are run.

12 Chapter 3 Computer Diagnostic Features

Saving and Printing Information in HP Insight Diagnostics

You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen.

1. Insert a diskette or USB 2.0 HP Drive Key (capacity must be 64MB or higher). USB 1.0 Drive Keys

are not supported.

2. Click Save in the bottom right corner of the screen.

3. Select Save to the floppy or Save to USB key.

4. Enter a file name in the File Name box and click the Save button. An html file will be saved to the

inserted diskette or USB HP Drive Key.

NOTE: Do not remove the diskette or USB key until you see a message indicating that the html

file has been written to the media.

5. Print the information from the storage device used to save it.

NOTE: To exit HP Insight Diagnostics, click Exit Diagnostics button in the bottom left corner of the

screen then remove the CD from the optical drive.

Downloading the Latest Version of HP Insight Diagnostics

1. Go to http://www.hp.com.

2. Click the Software & Driver Downloads link.

3. Enter your product number (for example, dx2400) in the text box and press the Enter key.

4. Select your specific computer model.

5. Select your OS.

6. Click the Diagnostic link.

7. Click HP Insight Diagnostics Offline Edition.

8. Select a language and click Download.

NOTE: The download includes instructions on how to create the bootable CD.

Protecting the Software

To protect software from loss or damage, you should keep a backup copy of all system software, applications, and related files stored on the hard drive. See the operating system or backup utility documentation for instructions on making backup copies of data files.

Protecting the Software 13

HP Backup and Recovery Manager

HP Backup and Recovery Manager is preinstalled on the C: drive and creates a Recovery Partition.

Recovery Points and file backups can be copied to CD or DVD discs, while all backups can be copied to network or secondary hard disks.

HP highly recommends that you create a Recovery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups.

To create the Recovery Disc Set:

1. Click Start > HP Backup and Recovery > HP Backup and Recovery Manager to open the

Backup and Recovery Wizard, then click Next.

2. Select Create a set of recovery discs (Recommended) and click Next.

3. Follow the instructions in the wizard.

For more information on using HP Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start > HP Backup and Recovery > HP Backup and Recovery

Manager Manual.

NOTE: You can order a Recovery Disc Set from HP by calling the HP support center. Go to the

following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region.

http://welcome.hp.com/country/us/en/wwcontact_us.html

14 Chapter 3 Computer Diagnostic Features

4 Serial and Parallel ATA Drive Guidelines

and Features

NOTE: Serial ATA = SATA

Parallel ATA = PATA

SATA Hard Drives

Serial ATA Hard Drive Characteristics

Number of pins/conductors in data cable 7/7

Number of pins in power cable 15

Maximum data cable length 39.37 in (100 cm)

Data interface voltage differential 400-700 mV

Drive voltages 3.3 V, 5 V, 12 V

Jumpers for configuring drive N/A

Data transfer rate 3.0 Gb/s

SATA connectors on the system board are color coded to make identification easier.

SATA Identification Color Port Attachment Sequence

Primary channel, device 0 Dark blue SATA 0 1

Primary channel, device 1 Light Blue SATA 2 4

Secondary channel, device 0 White SATA 1 2

Secondary channel, device 1 Orange SATA 3 3

NOTE: If there is an error on the application of the attach rules, a POST error message may be

displayed.

SATA Hard Drives 15

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. As shown in the table, each cable has 3 grounds, and 4 transmit/receive pins.

Pin Number Usage Device Plug Host Plug

P1 Ground Ground Ground

P2 A+ Transmit data Receive data

P3 A- Transmit data Receive data

P4 Ground Ground Ground

P5 B- Receive data Transmit data

P6 B+ Receive data Transmit data

P7 Ground Ground Ground

P2 and P3 differential signal pair

P5 and P6 differential signal pair

SATA Power Cable

Pin Usage Notes Pin Usage Notes

P1 V3.3 3.3 V power P9 V5 5 V power

P2 V3.3 3.3 V power P10 Ground

P3 V3.3 3.3 V power P11 Ground

P4 Ground P12 Ground

P5 Ground P13 V12 12 V power

P6 Ground P14 V12 12 V power

P7 V5 5 V power P15 V12 12 V power

P8 V5 5 V power

16 Chapter 4 Serial and Parallel ATA Drive Guidelines and Features

PATA Device Information

The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model.

ATA SMART 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.

Hard Drive Capacities

The combination of the file system and the operating system used in the computer determines the maximum usable size of a drive partition. A drive partition is the largest segment of a drive that may be properly accessed by the operating system. A single hard drive may therefore be subdivided into a number of unique drive partitions in order to make use of all of its space.

Because of the differences in the way that drive sizes are calculated, the size reported by the operating system may differ from that marked on the hard drive or listed in the computer specification. Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by Microsoft are bytes to the base 2.

Drive/Partition Capacity Limits

File System Controller Type Operating System Partition Drive

FAT 32 ATA Windows 2000/XP/Vista 32 GB 2 TB

NTFS ATA Windows 2000/XP/Vista 2 TB 2 TB

Maximum Size

PATA Device Information 17

5 Identifying the Chassis, Routine Care,

and Disassembly Preparation

This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service.

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

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

Chassis Designation

Microtower (MT)

18 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

Electrostatic Discharge Information

A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.

Generating Static

The following table shows that:

Different activities generate different amounts of static electricity.

●

Static electricity increases as humidity decreases.

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Relative Humidity

Event

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.

55% 40% 10%

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.

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Electrostatic Discharge Information 19

Avoid contact with pins, leads, or circuitry.

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Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive

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foam.

Personal Grounding Methods and Equipment

Use the following equipment to prevent static electricity damage to equipment:

Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground

●

cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.

Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible

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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

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.

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Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.

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Keep work area free of nonconductive materials such as ordinary plastic assembly aids and

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Styrofoam.

Voltage

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

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Antistatic smocks, aprons, or sleeve protectors

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Conductive bins and other assembly or soldering aids

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20 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

Conductive foam

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Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance

●

Static-dissipative table or floor mats with hard tie to ground

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Field service kits

●

Static awareness labels

●

Wrist straps and footwear straps providing one-megohm +/- 10% resistance

●

Material handling packages

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Conductive plastic bags

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Conductive plastic tubes

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Conductive tote boxes

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Opaque shielding bags

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Transparent metallized shielding bags

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Transparent shielding tubes

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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.

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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.

●

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.

Operating Guidelines 21

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 22 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 22 before cleaning the keyboard.

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

Computer Case on page 22.

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

on page 22 before following these procedures:

CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under

the keys.

Visible debris underneath or between the keys may be removed by vacuuming or shaking.

●

Cleaning the

General Cleaning Safety Precautions

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.

22 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

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.

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

Cleaning the Computer Case on page 22.

Tools and Software Requirements

To service the computer, you need the following:

Torx T-15 screwdriver (HP screwdriver with bits, PN 161946-001)

●

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

●

Service Considerations 23

Diagnostics software

●

HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper-

●

resistant bits (Smart Cover FailSafe Key, PN 166527-002)

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard

drives only.

CAUTION: As each subassembly is removed from the computer, it should be placed away from the

work area to prevent damage.

Cables and Connectors

Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this computer, ensure that cables are placed in their proper location during

the reassembly process. Improper cable placement can damage the computer.

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.

If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective

●

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

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

●

protective packaging until they are actually mounted in the CPU.

Avoid dropping drives from any height onto any surface.

●

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

●

while the computer is on or in standby mode.

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

●

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

Do not use excessive force when inserting a drive.

●

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

●

such as monitors or speakers.

Electrostatic Discharge Information on page 19

24 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

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