Hardware Reference Guide - dx7500
Microtower Model
HP Compaq Business PC
© Copyright 2008 Hewlett-Packard
Development Company, L.P. The
information contained herein is subject to
change without notice.
Microsoft, Windows, and Windows Vista are
either trademarks or registered trademarks
of Microsoft Corporation in the United States
and/or other countries.
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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
dx7500 Microtower Model
First Edition (August 2008)
Document Part Number: 498187-001
About This Book
This guide provides basic information for upgrading this computer model.
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
Serviceability Features ......................................................................................................................... 1
Front Panel Components ..................................................................................................................... 2
Media Card Reader Components ......................................................................................................... 3
Rear Panel Components ...................................................................................................................... 4
Keyboard .............................................................................................................................................. 5
Using the Windows Logo Key .............................................................................................. 5
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 ...................................................................................... 25
Removing an Optical Drive ................................................................................................ 26
Installing an Optical Drive into the 5.25-inch Drive Bay ..................................................... 27
Removing an External 3.5-inch Drive ................................................................................ 29
Installing a Drive into the 3.5-inch External Drive Bay ....................................................... 31
Removing an Internal 3.5-inch Hard Drive ......................................................................... 32
Installing an Internal 3.5-inch Hard Drive ........................................................................... 35
Appendix A Specifications
ENWW v
Appendix B Battery Replacement
Appendix C External Security Devices
Installing a Security Lock .................................................................................................................... 44
Cable Lock ......................................................................................................................... 44
Padlock .............................................................................................................................. 45
HP Business PC Security Lock .......................................................................................... 45
Appendix D Electrostatic Discharge
Preventing Electrostatic Damage ....................................................................................................... 48
Grounding Methods ............................................................................................................................ 48
Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation
Computer Operating Guidelines and Routine Care ............................................................................ 49
Optical Drive Precautions ................................................................................................................... 50
Operation ........................................................................................................................... 50
Cleaning ............................................................................................................................. 50
Safety ................................................................................................................................. 50
Shipping Preparation .......................................................................................................................... 50
Index ................................................................................................................................................................... 51
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 HP Compaq dx7500 Microtower
NOTE: The drive configuration shown above may be different than your computer model.
The illustration shown above may look different than your computer model.
Serviceability Features
The Microtower computer includes features that make it easy to upgrade and service. A Torx T-15 or
flat blade screwdriver is needed for many of the installation procedures described in this chapter.
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 10 1394 Port
1
Some models have bezel blanks covering one or both of the 5.25-inch drive bays.
2
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.
1
2
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
No. Slot Media
1 xD
2 MicroSD
3 Media Card Reader
Activity Light
4 SD/MMC+/miniSD
5 USB
6 CompactFlash I/II
7 MS PRO/MS PRO DUO
xD-Picture Card (xD)
●
MicroSD (T-Flash)
●
Secure Digital (SD)
●
Secure Digital High
●
Capacity (SDHC)
MiniSD
●
USB (Universal Serial
●
Bus) Port
CompactFlash Card
●
Type 1
Memory Stick (MS)
●
MagicGate Memory
●
Stick (MG)
MagicGate Memory
●
Duo
MicroSDHC
●
MiniSDHC
●
MultiMediaCard
●
(MMC)
Reduced Size
●
MultiMediaCard (RS
MMC)
CompactFlash Card
●
Type 2
Memory Stick Select
●
Memory Stick Duo
●
(MS Duo)
Memory Stick PRO
●
(MS PRO)
MultiMediaCard 4.0
●
(MMC Plus)
Reduced Size
●
MultiMediaCard 4.0
(MMC Mobile)
MMC Micro (adapter
●
required)
MicroDrive
●
Memory Stick PRO
●
Duo (MS PRO Duo)
Memory Stick PRO-
●
HG Duo
Memory Stick Micro
●
(M2) (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 8 PS/2 Mouse Connector (green)
2 Voltage Select Switch 9 Line-Out Connector for powered audio
3 Line-In Audio Connector (blue) 10 Microphone Connector (pink)
4 RJ-45 Network Connector 11 Universal Serial Bus (USB) Ports
5 1394 Port 12 DVI Monitor Connector (white)
6 VGA Monitor Connector (blue) 13 Digital Line-In Audio (black)
7 Digital Line-Out Audio (orange) 14 PS/2 Keyboard Connector (purple)
NOTE: Arrangement and number of connectors may vary by model.
The monitor connector on the system board is inactive when a PCI Express x16 graphics card is installed
in the computer.
If a 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.
devices (green)
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 Include 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
1
Keys available in select geographic regions.
1
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.
1
Used to open the Start menu in Microsoft Windows. Used in combination with other
keys to perform other functions.
software you are using.
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
Table 1-5 Windows Logo Key Functions
Keyboard on page 5 to identify the Windows Logo key.
The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.
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
Displays or hides the Start menu
ENWW Keyboard 5
Table 1-5 Windows Logo Key Functions (continued)
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 + Pause/Break Launches the System Properties dialog box
Windows Logo Key + Tab Windows XP - Cycles through the Taskbar buttons
In addition to the Windows Logo Key functions described above, the following functions are also available in Microsoft
Windows Vista.
Ctrl + Windows Logo Key + Tab
Windows Logo Key + Spacebar Brings all gadgets to the front and select Windows Sidebar
Windows Logo Key + g Cycles 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
allows you to switch users if you are not connected to a network
domain
Windows Vista - Cycles through programs on the Taskbar using
the Windows Flip 3-D
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 upper left
side 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 48 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. Remove 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. Follow the instructions described in
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
Removing the Front Bezel on page 11.
12 Chapter 2 Hardware Upgrades ENWW
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