HP Compaq dx2450 Reference Guide

Hardware Reference Guide - dx2450 Microtower Model

HP Compaq Business PC

Microsoft, Windows, and Windows Vista are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or 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.

Hardware Reference Guide

HP Compaq Business PC

dx2450 Microtower Model

First Edition (February 2008)

Document Part Number: 464056-001

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.

ENWW iii

iv About This Book ENWW

Table of contents

1 Product Features

Standard Configuration Features ......................................................................................................... 1

Front Panel Components ..................................................................................................................... 2

Media Card Reader Components ......................................................................................................... 3

Rear Panel Components ...................................................................................................................... 4

Keyboard .............................................................................................................................................. 5

Using the Windows Logo Key .............................................................................................. 6

Serial Number Location ........................................................................................................................ 7

2 Hardware Upgrades

Warnings and Cautions ........................................................................................................................ 8

Removing the Computer Access Panel ................................................................................................ 9

Replacing the Computer Access Panel .............................................................................................. 10

Removing the Front Bezel .................................................................................................................. 11

Removing Bezel Blanks ..................................................................................................................... 12

Replacing the Front Bezel .................................................................................................................. 13

Installing Additional Memory .............................................................................................................. 14

DIMMs ............................................................................................................................... 14

DDR2-SDRAM DIMMs ...................................................................................................... 14

Populating DIMM Sockets ................................................................................................. 15

Installing DIMMs ................................................................................................................ 16

Removing or Installing an Expansion Card ........................................................................................ 18

Drive Positions ................................................................................................................................... 23

Installing Additional Drives ................................................................................................................. 24

System Board Drive Connections ...................................................................................... 26

Removing an Optical Drive ................................................................................................ 27

Installing an Optical Drive into the 5.25-inch Drive Bay ..................................................... 29

Removing an External 3.5-inch Drive ................................................................................ 30

Installing a Drive into the 3.5-inch External Drive Bay ....................................................... 32

Removing an Internal 3.5-inch Hard Drive ......................................................................... 34

Installing an Internal 3.5-inch Hard Drive ........................................................................... 37

Appendix A Specifications

Appendix B Battery Replacement

Appendix C External Security Devices

Installing a Security Lock .................................................................................................................... 45

ENWW v

Cable Lock ......................................................................................................................... 45

Padlock .............................................................................................................................. 46

HP Business PC Security Lock .......................................................................................... 46

Appendix D Electrostatic Discharge

Preventing Electrostatic Damage ....................................................................................................... 49

Grounding Methods ............................................................................................................................ 49

Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation

Computer Operating Guidelines and Routine Care ............................................................................ 50

Optical Drive Precautions ................................................................................................................... 51

Operation ........................................................................................................................... 51

Cleaning ............................................................................................................................. 51

Safety ................................................................................................................................. 51

Shipping Preparation .......................................................................................................................... 51

Index ................................................................................................................................................................... 52

vi ENWW

1 Product Features

Standard Configuration Features

The HP Compaq Microtower features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only). Instructions for using the utility are provided in the Troubleshooting Guide.

Figure 1-1 Microtower Configuration

ENWW Standard Configuration Features 1

Front Panel Components

Drive configuration may vary by model.

Figure 1-2 Front Panel Components

Table 1-1 Front Panel Components

1 5.25-inch Optical Drives

2 Optical Drive Activity Lights 7 Optical Drive Eject Buttons

3 3.5-inch Media Card Reader (optional)

4 Microphone Connector 9 USB (Universal Serial Bus) 2.0 Ports

5 Dual-State Power Button

Some models have bezel blanks covering one or both of the 5.25-inch drive bays.

Some models have a bezel blank covering the 3.5-inch drive bay. An optional diskette drive is available from HP for this drive

bay.

6 Hard Drive Activity Light

8 Headphone Connector

2 Chapter 1 Product Features ENWW

Media Card Reader Components

The media card reader is an optional device available on some models only. Refer to the following illustration and table to identify the media card reader components.

Figure 1-3 Media Card Reader Components

Table 1-2 Media Card Reader Components

1 SmartMedia/xD

3.3V SmartMedia Card (SM)

●

D-Picture Card (xD)

●

2 Media Card Reader Activity Light 5 CompactFlash I/II

3 SD/MMC+/miniSD

Secure Digital Card (SD)

●

MiniSD

●

MultiMediaCard (MMC)

●

Reduced Size MultiMediaCard (RS MMC)

●

MultiMediaCard 4.0 (Mobile Plus)

●

Reduced Size MultiMediaCard 4.0 (MMC

●

Mobile)

MMC Micro (adapter required)

●

4 USB (Universal Serial Bus) Port

CompactFlash Card Type 1

●

CompactFlash Card Type 2

●

MicroDrive

●

6 MS PRO/MS PRO DUO

Memory Stick (MS)

●

MagicGate Memory Stick (MG)

●

MagicGate Memory Duo

●

Memory Stick Select

●

Memory Stick Duo (MS Duo)

●

Memory Stick PRO (MS PRO)

●

Memory Stick PRO Duo (MS PRO Duo)

●

MicroSD (T-Flash) (adapter required)

●

ENWW Media Card Reader Components 3

Rear Panel Components

Figure 1-4 Rear Panel Components

Table 1-3 Rear Panel Components

1 Power Cord Connector 6 Line-Out Connector for powered audio

devices (green)

2 Voltage Select Switch 7 Microphone Connector

3 Line-In Audio Connector (blue) 8 Universal Serial Bus (USB)

4 RJ-45 Network Connector 9 VGA Monitor Connector (blue)

5 PS/2 Mouse Connector (green) 10 PS/2 Keyboard Connector (purple)

NOTE: Arrangement and number of connectors may vary by model.

The monitor connectors on the system board are inactive when a PCI Express x16 graphics card is installed in the computer. The integrated graphics can be enabled if a graphics card based on an Nvidia graphics controller is plugged into the PCI Express x16 slot.

If a PCI or PCI Express x1 graphics card is installed, the connectors on the card and the system board may be used at the same time. Some settings may need to be changed in Computer Setup to use both connectors. For information about setting the boot VGA controller, refer to the Computer Setup (F10) Utility Guide.

4 Chapter 1 Product Features ENWW

Keyboard

Figure 1-5 Keyboard Components

Table 1-4 Keyboard Components

1 Function Keys Perform special functions depending on the software application being used.

2 Editing Keys Includes the following: Insert, Home, Page Up, Delete, End, and Page Down.

3 Status Lights Indicate the status of the computer and keyboard settings (Num Lock, Caps Lock,

4 Numeric Keys Work like a calculator keypad.

5 Arrow Keys Used to navigate through a document or Web site. These keys allow you to move

6 Ctrl Keys Used in combination with another key; their effect depends on the application

7 Application Key

8 Windows Logo Keys

9 Alt Keys Used in combination with another key; their effect depends on the application

Keys available in select geographic regions.

and Scroll Lock).

left, right, up, and down, using the keyboard instead of the mouse.

software you are using.

Used (like the right mouse button) to open pop-up menus in a Microsoft Office application. May perform other functions in other software applications.

Used to open the Start menu in Microsoft Windows. Used in combination with other keys to perform other functions.

software you are using.

ENWW Keyboard 5

Using the Windows Logo Key

Use the Windows Logo key in combination with other keys to perform certain functions available in the Windows operating system. Refer to the

Table 1-5 Windows Logo Key Functions

The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.

Keyboard on page 5 section to identify the Windows Logo key.

Windows Logo Key

Windows Logo Key + d Displays the Desktop

Windows Logo Key + m Minimizes all open applications

Shift + Windows Logo Key + m Undoes Minimize All

Windows Logo Key + e Launches My Computer

Windows Logo Key + f Launches Find Document

Windows Logo Key + Ctrl + f Launches Find Computer

Windows Logo Key + F1 Launches Windows Help

Windows Logo Key + l Locks the computer if you are connected to a network domain, or

Windows Logo Key + r Launches the Run dialog box

Windows Logo Key + u Launches the Utility Manager

Windows Logo Key + Tab Cycles through the Taskbar buttons (Windows XP)

In addition to the Windows Logo Key functions described above, the following functions are also available in Microsoft Windows Vista.

Displays or hides the Start menu

allows you to switch users if you are not connected to a network domain

Cycles through programs on the Taskbar using the Windows Flip 3-D (Windows Vista)

Ctrl + Windows Logo Key + Tab

Windows Logo Key + Spacebar Bring all gadgets to the front and select Windows Sidebar

Windows Logo Key + g Cycle through Sidebar gadgets

Windows Logo Key + u Launches Ease of Access Center

Windows Logo Key + x Launches Windows Mobility Center

Windows Logo Key + any number key Launches the Quick Launch shortcut that is in the position that

Use the arrow keys to cycle through programs on the Taskbar by using Windows Flip 3-D

corresponds to the number (for example, Windows Logo Key + 1 launches the first shortcut in the Quick Launch menu)

6 Chapter 1 Product Features ENWW

Serial Number Location

Each computer has a unique serial number and product ID number that are located on the top cover of the computer. Keep these numbers available for use when contacting customer service for assistance.

Figure 1-6 Serial Number and Product ID Location

ENWW Serial Number Location 7

2 Hardware Upgrades

Warnings and Cautions

Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.

WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:

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

Do not plug telecommunications or telephone connectors into the network interface controller (NIC) receptacles.

Do not disable the power cord grounding plug. The grounding plug is an important safety feature.

Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.

To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup, posture, and health and work habits for computer users, and provides important electrical and mechanical safety information. This guide is located on the Web at

CAUTION: Static electricity can damage the electrical 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 Appendix D, more information.

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 damage to internal components.

Electrostatic Discharge on page 49 for

http://www.hp.com/ergo.

8 Chapter 2 Hardware Upgrades ENWW

Removing the Computer Access Panel

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as diskettes or compact discs, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

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. You must disconnect the power cord to avoid damage to the internal components of the computer.

5. Loosen the screw (1) that secures the access panel to the computer chassis.

6. Slide the access panel back (2) about 1.3 cm (1/2 inch), then lift it off the unit.

NOTE: You may want to lay the computer on its side to install internal parts. Be sure the side

with the access panel is facing up.

Figure 2-1 Removing the Computer Access Panel

ENWW Removing the Computer Access Panel 9

Replacing the Computer Access Panel

Place the access panel on the chassis with about 1.3 cm (1/2 inch) of the panel hanging off the back of the chassis and slide it into place (1). Ensure that the hole for the screw is aligned with the hole in the chassis and tighten the screw (2).

Figure 2-2 Replacing the Computer Access Panel

10 Chapter 2 Hardware Upgrades ENWW

Removing the Front Bezel

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as diskettes or compact discs, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

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. You must disconnect the power cord to avoid damage to the internal components of the computer.

5. Remove the computer access panel.

6. Press outward on the three latches on the right side of the bezel (1), then rotate the right side of

the bezel off the chassis (2) followed by the left side.

Figure 2-3 Removing the Front Bezel

ENWW Removing the Front Bezel 11

Removing Bezel Blanks

On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need to be removed before installing a drive. To remove a bezel blank:

1. Remove the front bezel.

2. Press the two retaining tabs towards the outer left edge of the bezel (1) and pull the bezel blank

inwards to remove it (2).

Figure 2-4 Removing a Bezel Blank

3. Replace the front bezel.

12 Chapter 2 Hardware Upgrades ENWW

+ 41 hidden pages