HP Compaq dx2480 Reference Guide

Hardware Reference Manual

HP Compaq Business Desktop dx2480

Microtower Model

March 2008

This guide provides basic information for upgrading this computer

model.

Document Number : 468080-D61

Hardware Reference Guide

HP Compaq Business Desktop dx2480 Microtower Model

March 2008

This guide provides basic information for upgrading this computer model.

Microsoft, MS-DOS, Windows and Windows Vista 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.

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.

Hardware Reference Guide

HP Compaq Business Desktop dx2480 Microtower Model

Contents

1 Product Features

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

Front Panel Components ......................................................................................1-2

Rear Panel Components ....................................................................................... 1-3

Keyboard .............................................................................................................. 1-4

Windows Logo Key ............................................................................................. 1-5

Special Mouse Functions. .................................................................................... 1-5

Serial Number Location ....................................................................................... 1-6

2 Hardware Upgrades

Serviceability Features ......................................................................................... 2-1

Warnings and Cautions ........................................................................................ 2-1

Removing the Computer Access Panel ................................................................ 2-2

Removing the Front Bezel.................................................................................... 2-3

Installing Additional Memory............................................................................... 2-4

DIMMs ................................................................................................................. 2-4

DDR2-SDRAM DIMMs ...................................................................................... 2-4

Populating DIMM Sockets ................................................................................... 2-5

Installing DIMMs ................................................................................................. 2-6

Removing a 5.25" Drive Bezel Blank .................................................................. 2-8

Replacing or Upgrading a Drive .......................................................................... 2-9

Locating Drive Positions .................................................................................... 2-10

Removing a Drive .............................................................................................. 2-11

Replacing a Drive ............................................................................................... 2-13

Install Second Hard Disk ................................................................................... 2-16

Removing or Installing an Expansion Card ....................................................... 2-19

Reassembling the Computer .............................................................................. 2-25

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Contents

3 Battery Replacement

...................................................................................

4 Security Lock Provisions

Installing a Security Lock Mechanical Lock Chasis intrusion Lock

.......................................................................................................

...................................................................................

................................................................................................

5 Electrostatic Discharge

Preventing Electrostatic Damage

Grounding

Methods..............................................................................................

.........................................................................

6 Computer Operating Guidelines, Routine Care and Shipping

Preparation

Computer Operating Guidelines and Routine Care .............................................. 6-1

Optical Drive Precautions .................................................................................... 6-2

Operation Cleaning Safety

Shipping Preparation ............................................................................................ 6-3

.............................................................................................................

...............................................................................................................

...................................................................................................................

3-1

4-1 4-1 4-1

5-1 5-1

6-2 6-2 6-2

7 Computer Setup (F10) Utility

Computer Setup (F10) Utility ................................ ............................................ 7-1

Using Computer Setup (F10) Utilities

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

.................................................................

..........................................

7-2 7-4

8 Troubleshooting Guide

Computer Diagnostic Features ................................

Troubleshooting ........................................................

............................................

..............................................

8- 1 8- 8

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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 Diagnostics for Windows utility. Instructions for using this utility are provided in the Troubleshooting Guide on the Documentation and Diagnostics CD.

Product Features

Microtower Configuration

Photos depicted may vary as per actual machine

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Product Features

Front Panel Components

Drive configuration may vary by model.

Front Panel Components

Optical Drives

Optical Drive Activity Lights

Diskette Drive (optional)

Diskette Drive Activity Light (optional)

Power Button

Optical Drive Eject Button

Headphone Jack

Microphone Connector

Diskette Drive Eject Button (optional)

Power On Light

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USB (Universal Serial Bus) Ports

Hard Drive Activity Light

Photos depicted may vary as per actual machine

Product Features

Rear Panel Components

2 3 5 6 7 8 10

Rear Panel Components

1 7

2 8

3 9

4 10

Power Cord Connector RJ-45 Network Connector .

Voltage Select Switch Parallel Port Connector

PS/2 Mouse Connector Monitor Connector

PS/2 Keyboard Connector Headphone/Line-Out Connector

Universal Serial Bus (USB) Audio/Line-In Connector

Serial Port Connector Microphone Connector

944

Arrangement and number of connectors may vary by model.

Photos depicted may vary as per actual machine

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Product Features

Keyboard

Keyboard Components

Function Keys Perform special functions depending on the software

application being used.

Editing Keys Includes the following: Insert, Home, Page Up, Delete, End,

and Page Down. .

Status Lights Indicate the status of the computer and keyboard settings

(Num Lock, Caps Lock, and Scroll Lock).

Numeric Keys Work like a calculator keypad.

Arrow Keys Used to navigate through a document or Web site. These

keys allow you to move left, right, up, and down, using the keyboard instead of the mouse.

Ctrl Keys Used in combination with another key; its effect depends

on the application software you are using.

Application Key* Used (like the right mouse button) to open pop-up menus

in a Microsoft Office application. May perform other functions in other software applications.

Windows Logo Keys* Used to open the Start menu in Microsoft Windows. Used

in combination with other keys to perform other functions.

Alt Keys Used in combination with another key; its effect depends

on the application software you are using. *Keys available in select geographic regions.

Photos depicted may vary as per actual machine

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Product Features

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 "Keyboard" section to identify the Windows Logo key.

Windows Logo Key Functions

Windows Logo Key Displays or hides the Start menu.

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

Windows Logo Key + r Launches the Run dialog box.

Windows Logo Key + u Launches the Utility Manager.

Windows Logo Key + Tab Activates the next Taskbar button.

Special Mouse Functions

Most software applications support the use of a mouse. The functions assigned to each mouse button depend on the software applications you are using.

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Product Features

Serial Number Location

Each computer has a unique serial number and a 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.

Serial Number and Product ID Location

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Serviceability Features

The Microtower computer includes features that make it easy to upgrade and service. A Torx T-15 screwdriver is needed for many of the installation procedures described in this chapter.

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 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.

WARNING: To reduce the risk of electrical shock, fire, or damage to the

equipment, do not plug telecommunications/telephone connectors into the network interface controller (NIC) receptacles.

Hardware Upgrades

WARNING: To reduce the risk of electrical shock, before removing the

computer cover ensure that telecommunication/telephone connector (TNV circuit) are disconnected

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 Chapter 5, "Electrostatic Discharge" for more information.

CAUTION: Before removing the computer cover, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet.

CAUTION: To reduce the risk of fire, use only No. 26 AWG or larger (e.g., 24 AWG) UL Listed or CSA Certified Telecommunication Line Cord

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Hardware Upgrades

Removing the Computer Access Panel

CAUTION: CAUTION: Before removing the computer access panel, ensure

that the computer is turned off and that the power cord is disconnected from the electrical outlet.

To remove the computer access panel:

1. Turn off the computer properly through the operating system and turn off any external devices.

2. Disconnect the power cord from the power outlet and the computer, and disconnect any external devices.

3. Remove the screw that secures the access panel to the computer chassis.

4. Slide the access panel back about 2.5 cm (1 inch), then lift it off the unit.

To replace the access panel, reverse the removal steps.

Removing the Computer Access Panel

Photos depicted may vary as per actual machine

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Hardware Upgrades

Removing the Front Bezel

To remove the front bezel:

1. Turn off the computer properly through the operating system and turn

off any external devices.

2. Disconnect the power cord from the power outlet and the computer, and

disconnect any external devices.

3. To remove the front bezel, press down on all four tabs

at the bottom of the bezel and then rotate the bezel off the chassis .

Removing the Front Bezel

Photos depicted may vary as per actual machine

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Hardware Upgrades

Installing Additional Memory

The computer comes with double data rate synchronous dynamic random access memory (DDR2-SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 8GB* of memory configured in a high-performing dual channel mode.

DDR2-SDRAM DIMMs

For proper system operation, if the computer supports DDR2 SDRAM DIMMs, the DIMMs must be:

Industry-standard 240-pin

Unbuffered 800 MHz-compliant

DDR2 800 MHz DIMM

256Mbit, 512Mbit, and 1Gbit non-ECC memory technologies single-sided and double-sided DIMMS

The system will not start if you install unsupported DIMMs.

*8GB Memory is supported only with Windows Vista 64 bit or

Freedos operating systems

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Hardware Upgrades

Populating DIMM Sockets

The system will automatically operate in single channel mode, dual channel Asymmetric mode, depending on how the DIMMs are installed.

The system will operate in single channel mode if the DIMM

sockets are populated in one channel only.

The system will operate in dual channel Asymmetric mode if the

total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B.

There are Four DIMM sockets on the system board, with two sockets per channel.

DIMM Socket

Item Description Socket Color

DIMM socket, Channel A

DIMM socket, Channel B

Yellow

Red

Yellow

Red

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Hardware Upgrades

Installing DIMMs

CAUTION: The memory module sockets have gold metal contacts. When

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

CAUTION: 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. For more informations, refer to Chapter 5, "Electrostatic Discharge."

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

1. Turn off the computer properly through the operating system and

turn off any external devices.

2. Disconnect the power cord from the power outlet and disconnect

any external devices.

3. Remove the computer access panel.

4. 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.

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Hardware Upgrades

5. Open both latches of the memory module socket , and insert the

memory module into the socket

Installing a DIMM

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

6. Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position .

7. Repeat steps 5 and 6 to install any additional modules.

8. Replace the access panel.

The computer should automatically recognize the additional memory the next time you turn on the computer.

Photos depicted may vary as per actual machine

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Hardware Upgrades

Removing a 5.25" Drive Bezel Blank

If the computer was not shipped with a drive in the 5.25" option bay, the bay will be covered by a bezel blank. If you add a drive to the option bay, you must first remove the bezel blank.

1. Turn off the computer properly through the operating system and

turn off any external devices.

2. Disconnect the power cord from the power outlet and the

computer, and disconnect any external devices.

3. Remove the access panel and front bezel. Refer to "Removing the

Computer Access Panel" and "Removing the Front Bezel".

4. While facing the inside of the front bezel, press the two retaining

tabs on the right towards the outer edge of the bezel and pull the bezel blank inwards to remove it .

Removing a Bezel Blank

To install a bezel blank, slide the left side of the blank into the two retainer slots on the left side of the front bezel then snap the right side

of the blank into place.

Photos depicted may vary as per actual machine

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Hardware Upgrades

Replacing or Upgrading a Drive

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

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

CAUTION: Make sure you back up your personal files on the hard drive to an external storage device, such as a CD, before removing the hard drive. Failure to do so will result in data loss. After replacing the primary hard drive, you will need to run the Restore Plus! DVD to load the HP factory-installed files.

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Hardware Upgrades

Locating Drive Positions

Drive Positions

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Hardware Upgrades

First 5.25-inch, half-height bays for optional drives Second 5.25-inch,

half-height bays for optional drives

Two Nos. standard 3.5-inch, one-third height bays

(1.44-MB diskette drive shown)

Two Nos. internal 3.5-inch, one-third height bays for hard drives

Removing a Drive

1. Turn off the computer properly through the operating system and turn off any external devices. Disconnect the power cord from the power outlet and disconnect any external devices. .

2. Remove the access panel and front bezel.

3. Disconnect the power and data cables from the back of the drive, as indicated in the following illustrations.

4. Remove all the screws that secures the drives in the drive bay. Slide the drive disk forward and out of the bay.

Removing the Drives

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Hardware Upgrades

5. Hard disk is inserted or slide out from the back.

Removing the Hard disk

6. Remove all the screws that secure the floppy drive in the bay.

Slide the drive disk forward and out of the bay.

WARNING: There may be sharp edges on the insides of the bay

opening after the shield has been removed.

Photos depicted may vary as per actual machine

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Hardware Upgrades

Replacing a Drive

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

If you are inserting or removing a hard drive, shut down the operating system properly, then 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 Chapter 5, "Electrostatic Discharge."

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.

Make sure to back up the data on the old hard drive before removing

it so that you can install the data onto the new hard drive.

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Hardware Upgrades

1. Slide the floppy drive into the drive bay, making sure to align

the guide screws with the guide slots, until the drive snaps into place.

Sliding the Drives into the Drive Cage

2. Slide the optical drive into the drive bay, making sure to align

the screw holes with the drive bays holes. Secure the Drive by tighten all two screws.

Photos depicted may vary as per actual machine

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