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Hardware Reference Guide - dx2400
Microtower Model
HP Compaq Business PC
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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.
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About This Book
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Table of contents
2 Hardware Upgrades
Removing Bezel Blanks ..................................................................................................................... 12
Installing Additional Memory .............................................................................................................. 14
DIMMs ............................................................................................................................... 14
DDR2-SDRAM DIMMs ...................................................................................................... 14
Populating DIMM Sockets ................................................................................................. 15
Drive Positions ................................................................................................................................... 23
Appendix A Specifications
Appendix B Battery Replacement
Appendix C External Security Devices
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Appendix D Electrostatic Discharge
Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation
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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
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Standard Configuration Features
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Front Panel Components
Drive configuration may vary by model.
Figure 1-2 Front Panel Components
Table 1-1 Front Panel Components
1
2
3
4
5
5.25-inch Optical Drives1
6
7
8
9
Hard Drive Activity Light
Optical Drive Activity Lights
3.5-inch Media Card Reader (optional)2
Microphone Connector
Optical Drive Eject Buttons
Headphone Connector
USB (Universal Serial Bus) 2.0 Ports
Dual-State Power Button
1
2
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.
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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
4
5
USB (Universal Serial Bus) Port
3.3V SmartMedia Card (SM)
D-Picture Card (xD)
●
●
2
Media Card Reader Activity Light
CompactFlash I/II
CompactFlash Card Type 1
CompactFlash Card Type 2
MicroDrive
●
●
●
3
SD/MMC+/miniSD
6
MS PRO/MS PRO DUO
Secure Digital Card (SD)
MiniSD
Memory Stick (MS)
●
●
●
●
●
●
●
●
●
●
●
●
●
MagicGate Memory Stick (MG)
MagicGate Memory Duo
MultiMediaCard (MMC)
Reduced Size MultiMediaCard (RS MMC)
MultiMediaCard 4.0 (Mobile Plus)
Memory Stick Select
Memory Stick Duo (MS Duo)
Memory Stick PRO (MS PRO)
Memory Stick PRO Duo (MS PRO Duo)
Reduced Size MultiMediaCard 4.0 (MMC
Mobile)
MMC Micro (adapter required)
●
●
MicroSD (T-Flash) (adapter required)
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Media Card Reader Components
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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
3
Voltage Select Switch
7
8
Microphone Connector
Line-In Audio Connector (blue)
Universal Serial Bus (USB)
4
5
RJ-45 Network Connector
9
VGA Monitor Connector (blue)
PS/2 Mouse Connector (green)
10
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 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.
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Keyboard
Figure 1-5 Keyboard Components
Table 1-4 Keyboard Components
1
2
3
Function Keys
Editing Keys
Status Lights
Perform special functions depending on the software application being used.
Includes the following: Insert, Home, Page Up, Delete, End, and Page Down.
Indicate the status of the computer and keyboard settings (Num Lock, Caps Lock,
and Scroll Lock).
4
5
Numeric Keys
Arrow Keys
Work like a calculator keypad.
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.
6
7
8
9
Ctrl Keys
Used in combination with another key; their effect depends on the application
software you are using.
Application Key1
Windows Logo Keys1
Alt Keys
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.
Used in combination with another key; their effect depends on the application
software you are using.
1
Keys available in select geographic regions.
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Keyboard
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Using the Windows Logo Key
Use the Windows Logo key in combination with other keys to perform certain functions available in the
Table 1-5 Windows Logo Key Functions
The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.
Windows Logo Key
Displays or hides the Start menu
Displays the Desktop
Windows Logo Key + d
Windows Logo Key + m
Shift + Windows Logo Key + m
Windows Logo Key + e
Windows Logo Key + f
Windows Logo Key + Ctrl + f
Windows Logo Key + F1
Windows Logo Key + l
Minimizes all open applications
Undoes Minimize All
Launches My Computer
Launches Find Document
Launches Find Computer
Launches Windows Help
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
Windows Logo Key + u
Windows Logo Key + Tab
Launches the Run dialog box
Launches the Utility Manager
Cycles through the Taskbar buttons (Windows XP)
Cycles through programs on the Taskbar using the Windows Flip
3-D (Windows Vista)
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
Use the arrow keys to cycle through programs on the Taskbar by
using Windows Flip 3-D
Windows Logo Key + Spacebar
Windows Logo Key + g
Bring all gadgets to the front and select Windows Sidebar
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
corresponds to the number (for example, Windows Logo Key + 1
launches the first shortcut in the Quick Launch menu)
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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
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Serial Number Location
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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
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
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.
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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
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Removing the Computer Access Panel
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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
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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
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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.
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Replacing the Front Bezel
Insert the three hooks on the left side of the bezel into the slots on the chassis (1) and rotate the bezel
on from left to right (2) so that it snaps in place.
Figure 2-5 Replacing the Front Bezel
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Installing Additional Memory
The computer comes with double data rate 2 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 4GB of memory configured in a high-
performing dual channel mode.
DDR2-SDRAM DIMMs
For proper system operation, the DDR2-SDRAM DIMMs must be:
industry-standard 240-pin
●
●
●
unbuffered PC2-5300 667 MHz-compliant or PC2-6400 800 MHz-compliant
1.8 volt DDR2-SDRAM DIMMs
The DDR2-SDRAM DIMMs must also:
support CAS latency 5 DDR2 667 Mhz (5-5-5 timing), CAS latency 5 DDR2 800 Mhz (5-5-5 timing),
and CAS latency 6 DDR2 800 Mhz (6-6-6 timing)
●
contain the mandatory JEDEC SPD information
●
In addition, the computer supports:
512Mbit and 1Gbit non-ECC memory technologies
single-sided and double-sided DIMMs
●
●
●
DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not
supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
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Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are
labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM2 operate in memory channel A.
Sockets XMM3 and XMM4 operate in memory channel B.
Figure 2-6 DIMM Socket Locations
Table 2-1 DIMM Socket Locations
Item
Description
Socket Color
1
DIMM socket XMM1, Channel A
(populate first)
Black
2
3
DIMM socket XMM2, Channel A
Blue
DIMM socket XMM3, Channel B
(populate second)
Black
4
DIMM socket XMM4, Channel B
Blue
NOTE: A DIMM must occupy the XMM1 socket.
The system will automatically operate in single channel mode, dual channel mode, or flex 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 a higher-performing dual channel mode if the total memory capacity of
the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The
technology and device width can vary between the channels. For example, if Channel A is
populated with two 512MB DIMMs and Channel B is populated with one 1GB DIMM, the system
will operate in dual channel mode.
●
The system will operate in flex 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. In flex mode, the channel populated
●
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with the least amount of memory describes the total amount of memory assigned to dual channel
and the remainder is assigned to single channel. For optimal speed, the channels should be
balanced so that the largest amount of memory is spread between the two channels. If one channel
will have more memory than the other, the larger amount should be assigned to Channel A. For
example, if you are populating the sockets with one 1GB DIMM, and three 512MB DIMMs, Channel
A should be populated with the 1GB DIMM and one 512MB DIMM, and Channel B should be
populated with the two 512MB DIMMs. With this configuration, 2GB will run as dual channel and
512MB will run as single channel.
In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
●
Installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to
drain before adding or removing memory modules. Regardless of the power-on state, voltage is always
supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding
or removing memory modules while voltage is present may cause irreparable damage to the memory
modules or system board. If you see an LED light on the system board, voltage is still present.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is
important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation
resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object. For more information, refer to Appendix D, Electrostatic Discharge
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
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: You must disconnect the power cord and wait approximately 30 seconds for the
power to drain before adding or removing memory modules. Regardless of the power-on state,
voltage is always supplied to the memory modules as long as the computer is plugged into an
active AC outlet. Adding or removing memory modules while voltage is present may cause
irreparable damage to the memory modules or system board. If you see an LED light on the system
board, voltage is still present.
5. Remove the computer access panel.
6. 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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7. Open both latches of the memory module socket (1), and insert the memory module into the socket
(2).
Figure 2-7 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
A DIMM must occupy the XMM1 socket. Always populate the black sockets before blue sockets in
each channel.
In order to create a dual-channel memory configuration, the memory capacity of Channel A must
information.
8. Push the DIMM module down firmly into the socket, ensuring that the module is fully inserted and
properly seated. The DIMM must be pushed all the way down into the socket and sit evenly in the
socket to avoid memory corruption. Make sure the latches are in the closed position (3).
9. Repeat steps 7 and 8 to install any additional modules.
10. Replace the computer access panel.
11. Reconnect the power cord and any external devices, then turn on the computer. The computer
should automatically recognize the additional memory when you turn on the computer.
12. Lock any security devices that were disengaged when the access panel was removed.
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Removing or Installing an Expansion Card
The computer has one standard PCI expansion slot that can accommodate an expansion card up to
17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one
PCI Express x16 expansion slot.
Figure 2-8 Expansion Slot Locations
Table 2-2 Expansion Slot Locations
Item
Description
1
2
3
4
PCI expansion slot
PCI Express x1 expansion slot
PCI Express x1 expansion slot
PCI Express x16 expansion slot
NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16
expansion slot.
To remove, replace, or add an expansion card:
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.
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5. Remove the computer access panel.
6. Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
7. On the rear of the computer, a slot cover lock secures the expansion card brackets in place.
Remove the screw from the slot cover lock then slide the slot cover lock up to remove it from the
chassis.
Figure 2-9 Opening the Slot Cover Lock
8. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
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NOTE: Before removing an installed expansion card, disconnect any cables that may be attached
to the expansion card.
a. If you are installing an expansion card in a vacant socket, you must use a flatblade screwdriver
to pry out the metal shield on the rear panel that covers the expansion slot. Be sure to remove
the appropriate shield for the expansion card you are installing.
Figure 2-10 Removing an Expansion Slot Cover
b. If you are removing a standard PCI card, hold the card at each end and carefully rock it back
and forth until the connectors pull free from the socket. Be sure not to scrape the card against
the other components.
Figure 2-11 Removing a Standard PCI Expansion Card
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c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion
socket away from the card and carefully rock the card back and forth until the connectors pull
free from the socket. Be sure not to scrape the card against the other components.
Figure 2-12 Removing a PCI Express x16 Expansion Card
9. Store the removed card in anti-static packaging.
10. If you are not installing a new expansion card, install an expansion slot cover to close the open
slot.
CAUTION: After removing an expansion card, you must replace it with a new card or expansion
slot cover for proper cooling of internal components during operation.
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11. To install a new expansion card, hold the card just above the expansion socket on the system
board then move the card toward the rear of the chassis so that the bottom of the bracket on the
card slides into the small slot on the chassis. Press the card straight down into the expansion socket
on the system board.
Figure 2-13 Installing an Expansion Card
NOTE: When installing an expansion card, press firmly on the card so that the whole connector
seats properly in the expansion card slot.
12. Replace the slot cover lock and secure it in place with the screw that was previously removed.
Figure 2-14 Securing the Expansion Cards and Slot Covers
13. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
14. Replace the computer access panel.
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15. Reconnect the power cord and any external devices, then turn on the computer.
16. Lock any security devices that were disengaged when the access panel was removed.
17. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for
instructions on using Computer Setup.
Drive Positions
Figure 2-15 Drive Positions
1
2
3
4
Two 5.25-inch external drive bays for optional drives (optical drives shown)
One 3.5-inch external drive bay for optional drive (media card reader shown)
Primary 3.5-inch internal hard drive bay
Secondary 3.5-inch internal hard drive bay for optional hard drive
To verify the type, size, and capacity of the storage devices installed in the computer, run Computer
Setup. Refer to the Computer Setup (F10) Utility Guide for more information.
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Installing Additional Drives
When installing additional drives, follow these guidelines:
The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA
connector on the system board labeled SATA0.
●
●
●
Connect the first SATA optical drive to the white SATA connector on the system board labeled
SATA1.
Always populate the dark blue SATA0 and white SATA1 connectors before the light blue SATA2
and orange SATA3 connectors.
Connect a second SATA optical drive to the orange SATA3 connector.
●
●
Connect additional SATA hard drives to the next available (unpopulated) SATA connector on the
system board in the following order: SATA0, SATA1, SATA3, SATA2.
Connect a diskette drive to the connector labeled FLOPPY.
●
●
●
●
●
Connect a media card reader to the USB connector labeled F_USB2.
The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.
You may install either a third-height or a half-height drive into a half-height bay.
If needed, HP has provided extra drive retainer screws on the interior of the front bezel that are
used to secure the drives in the drive cage. Hard drives use 6-32 standard screws. All other drives
use M3 metric screws. The HP-supplied M3 metric guide screws (1) are black. The HP-supplied
6-32 standard screws (2) are silver.
Figure 2-16 Extra Drive Retainer Screws Location
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CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the computer,
and unplug the power cord. Do not remove a drive while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector. For more information about preventing electrostatic damage, refer to Appendix
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label
the package “Fragile: Handle With Care.”
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System Board Drive Connections
Refer to the following illustration and table to identify the system board drive connectors.
Figure 2-17 System Board Drive Connections
Table 2-3 System Board Drive Connections
No.
System Board Connector
System Board Label
Color
1
2
3
4
5
6
Media Card Reader
SATA0
F_USB2
SATA0
SATA1
SATA2
SATA3
FLOPPY
black
dark blue
white
SATA1
SATA2
light blue
orange
black
SATA3
Diskette Drive
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Removing an Optical Drive
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
To remove an optical drive:
1. 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 access panel and front bezel.
6. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive.
Figure 2-18 Disconnecting the Power and Data Cables
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7. Remove the screw that secures the drive to the drive cage (1), then slide the drive out of the front
of the chassis (2).
Figure 2-19 Removing the Optical Drive
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Installing an Optical Drive into the 5.25-inch Drive Bay
To install an optional 5.25-inch optical drive:
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 access panel and front bezel.
6. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove
7. If you are adding a drive to an empty lower optical drive bay, you must remove the knockout plate
from the bay. To do so, insert a flat screwdriver into the knockout plate slot and rotate the
screwdriver to break the knockout plate out of the chassis. Discard the knockout plate.
8. If the new drive has screws installed on the sides of the drive, remove the screws before inserting
the drive into the chassis.
9. Slide the drive in through the front of the chassis (1) until the bezel on the drive is evenly aligned
with the computer front bezel and install the M3 metric retainer screw (2) as shown in the illustration
below.
NOTE: Extra drive retainer screws are provided on the interior of the front bezel if needed. The
M3 metric retainer screws for optical drives are black. Refer to Installing Additional Drives
on page 24 for an illustration of the retainer screws location.
Figure 2-20 Installing the Optical Drive
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10. If the system configuration includes only one optical drive, connect the SATA data cable to the
white system board connector labeled SATA1 . If you are adding a second optical drive, connect
the SATA data cable to the orange system board connector labeled SATA3.
11. Connect the power cable (1) and data cable (2) to the rear of the optical drive.
Figure 2-21 Connecting the Power and Data Cables
12. Replace the front bezel and access panel.
13. Reconnect the power cord and turn on the computer.
14. Lock any security devices that were disengaged when the access panel was removed.
The system automatically recognizes the drive and reconfigures the computer.
Removing an External 3.5-inch Drive
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
NOTE: The 3.5-inch drive bay may contain a diskette drive or a media card reader.
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 access panel and front bezel.
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6. Disconnect the drive cables, as indicated in the following illustrations:
a. If you are removing a diskette drive, disconnect the data cable (1) and power cable (2) from
the back of the drive.
Figure 2-22 Disconnecting the Diskette Drive Cables
b. If you are removing a media card reader, disconnect the USB cable from the system board.
Figure 2-23 Disconnecting the Media Card Reader Cable
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7. Remove the retainer screw that secures the drive to the bay (1) then slide the drive forward and
out of the bay (2).
Figure 2-24 Removing a 3.5-inch Device (Media Card Reader Shown)
Installing a Drive into the 3.5-inch External Drive Bay
The 3.5-inch external drive bay on the front of the computer can be configured with a media card reader
or a diskette drive.
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 access panel and front bezel.
6. If you are installing a diskette drive or media card reader in a bay covered by a bezel blank, remove
information.
7. If you are adding a drive to an empty drive bay for the first time, you must remove the knockout
plate from the bay. To do so, insert a flat screwdriver into the knockout plate slot and rotate the
screwdriver to break the knockout plate out of the chassis. Discard the knockout plate.
8. If the new drive has screws installed on the sides of the drive, remove them before inserting the
drive into the chassis.
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9. Slide the drive in through the front of the chassis (1) until the bezel on the drive is evenly aligned
with the computer front bezel and install the M3 metric retainer screw (2) as shown in the illustration
below.
NOTE: Extra drive retainer screws are provided on the interior of the front bezel if needed. The
M3 metric retainer screws for diskette drives or media card readers are black. Refer to Installing
Additional Drives on page 24 for an illustration of the retainer screws location.
Figure 2-25 Installing a 3.5-inch Device (Media Card Reader Shown)
10. Connect the appropriate drive cables:
a. If installing a diskette drive, connect the power and data cables to the rear of the drive and
connect the other end of the data cable to the connector on the system board labeled FLOPPY.
b. If installing a media card reader, connect the USB cable from the media card reader to the
USB connector on the system board labeled F_USB2.
board drive connectors.
11. Replace the front bezel and access panel.
12. Reconnect the power cord and turn on the computer.
13. Lock any security devices that were disengaged when the access panel was removed.
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Removing an Internal 3.5-inch Hard Drive
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive,
make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and
any software applications that were preinstalled on the computer. If you do not have this CD set, select
Start > HP Backup and Recovery and create it now.
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. Remove the two screws that secure the hard disk drive cage to the chassis.
Figure 2-26 Removing the Hard Drive Cage Screws
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7. Push down the latch on the side of the hard disk drive cage (1), then slide the hard disk drive cage
away from the bottom of the chassis (2) as shown below.
Figure 2-27 Releasing the Hard Drive Cage
8. Lift the hard disk drive cage out of the chassis.
Figure 2-28 Removing the Hard Drive Cage
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9. Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
Figure 2-29 Disconnecting the Hard Drive Cables
10. Remove the four screws that secure the hard disk drive to the hard disk drive cage (1), then slide
the hard disk drive out of the hard disk drive cage (2).
Figure 2-30 Removing the Hard Drive
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Installing an Internal 3.5-inch Hard Drive
cage and, if necessary, the existing hard drive.
2. Slide the new drive into the hard disk drive cage (1), aligning the drive with the four screw holes
on the cage. Install the four 6-32 standard screws that secure the hard disk drive to the hard disk
drive cage (2). Make sure the hard disk drive cables are facing the top of the drive cage.
NOTE: If you are replacing an old drive with a new drive, use the four retainer screws from the
old drive to install the new drive.
NOTE: If you are installing a second hard drive, use four of the extra standard 6-32 screws that
are installed on the interior of the front bezel. The 6-32 screws are silver. Refer to Installing
Additional Drives on page 24 for an illustration of the retainer screws location.
Figure 2-31 Installing the Hard Drive in the Drive Cage
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3. Connect the power cable (1) and data cable (2) to the back of the hard drive.
Figure 2-32 Connecting the Hard Drive Cables
CAUTION: Never crease or bend a SATA data cable tighter than a 30 mm (1.18 in) radius. A
sharp bend can break the internal wires.
4. Place the hard disk drive cage into the chassis (1), then slide it down toward the bottom of the
chassis until it locks into place (2).
Figure 2-33 Installing the Hard Drive Cage
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5. Attach the two screws that secure the hard disk drive cage to the chassis.
Figure 2-34 Securing the Hard Drive Cage
6. If installing a new drive, connect the opposite end of the data cable to the appropriate system board
connector.
NOTE: If your system has only one SATA hard drive, you must connect the hard drive data cable
to the dark blue connector labeled SATA0 to avoid any hard drive performance problems. If you
are adding a second hard drive, connect the data cable to the next available (unpopulated) SATA
connector on the system board in the following order: SATA0, SATA1, SATA3, SATA2.
7. Replace the computer access panel.
8. Reconnect the power cord and any external devices, then turn on the computer.
9. Lock any security devices that were disengaged when the access panel was removed.
NOTE: If you are replacing the primary hard drive, use the Recovery Disc Set to restore the operating
system, software drivers, and any software applications that were preinstalled on the computer.
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A Specifications
Table A-1 Specifications
Desktop Dimensions
Height
14.76 in
6.98 in
16.88 in
23.5 lb
37.5 cm
17.73 cm
42.87 cm
10.66 kg
Width
Depth
Approximate Weight
Temperature Range
Operating
50° to 95°F
10° to 35°C
-30° to 60°C
-22° to 140°F
Nonoperating
Relative Humidity (noncondensing)
Operating
10-90%
5-95%
10-90%
5-95%
Nonoperating (38.7°C max wet bulb)
Maximum Altitude (unpressurized)
Operating
10,000 ft
30,000 ft
3048 m
9144 m
Nonoperating
NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct
sustained sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and number of
options installed.
Heat Dissipation
1575 BTU/hr
307 BTU/hr
115V
397 kg-cal/hr
77 kg-cal/hr
230V
Maximum
Typical (idle)
Power Supply
Operating Voltage Range1
Rated Voltage Range
Rated Line Frequency
Power Output
90-132 VAC
100-127 VAC
50-60 Hz
180-264 VAC
200-240 VAC
50-60 Hz
300 W
300 W
40 Appendix A Specifications
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Table A-1 Specifications (continued)
Rated Input Current (maximum)1
8A @ 100 VAC
4A @ 200 VAC
1
This system utilizes a passive power factor corrected power supply. The power factor correction is present in the 230V
operating mode only. This allows the system to pass the CE mark requirements for use in the countries of the European Union.
This supply requires the use of an input voltage range select switch.
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B Battery Replacement
The battery that comes with the computer provides power to the real-time clock. When replacing the
battery, use a battery equivalent to the battery originally installed in the computer. The computer comes
with a 3-volt lithium coin cell battery.
WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of
fire and burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Replace the battery only with the HP spare designated for this product.
CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When
the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Computer Setup
(F10) Utility Guide for information on backing up the CMOS settings.
Static electricity can damage the electronic components of the computer or optional equipment. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object.
NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall
socket. The lithium battery is only used when the computer is NOT connected to AC power.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and
rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/
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. Locate the battery and battery holder on the system board.
42 Appendix B Battery Replacement
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NOTE: On some computer models, it may be necessary to remove an internal component to gain
access to the battery.
7. Depending on the type of battery holder on the system board, complete the following instructions
to replace the battery.
Type 1
a. Lift the battery out of its holder.
Figure B-1 Removing a Coin Cell Battery (Type 1)
b. Slide the replacement battery into position, positive side up. The battery holder automatically
secures the battery in the proper position.
Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one edge
of the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with
the positive side up. Push the other edge down until the clamp snaps over the other edge of
the battery (2).
Figure B-2 Removing and Replacing a Coin Cell Battery (Type 2)
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
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b. Insert the new battery and position the clip back into place.
Figure B-3 Removing a Coin Cell Battery (Type 3)
NOTE: After the battery has been replaced, use the following steps to complete this procedure.
8. Replace the computer access panel.
9. Plug in the computer and turn on power to the computer.
10. Reset the date and time, your passwords, and any special system setups using Computer Setup.
Refer to the Computer Setup (F10) Utility Guide.
11. Lock any security devices that were disengaged when the access panel was removed.
44 Appendix B Battery Replacement
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C External Security Devices
NOTE: For information on data security features, refer to the Computer Setup (F10) Utility Guide and
the Desktop Management Guide.
Installing a Security Lock
The security locks displayed below and on the following pages can be used to secure the computer.
Cable Lock
Figure C-1 Installing a Cable Lock
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2. Thread the keyboard and mouse cables through the lock.
Figure C-4 Threading the Keyboard and Mouse Cables
3. Screw the lock to the chassis using the screw provided.
Figure C-5 Attaching the Lock to the Chassis
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4. Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the
lock. Use the key provided to disengage the lock.
Figure C-6 Engaging the Lock
48 Appendix C External Security Devices
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D Electrostatic Discharge
A discharge of static electricity from a finger or other conductor may damage system boards or other
static-sensitive devices. This type of damage may reduce the life expectancy of the device.
Preventing Electrostatic Damage
To prevent electrostatic damage, observe the following precautions:
Avoid hand contact by transporting and storing products in static-safe containers.
Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
Place parts on a grounded surface before removing them from their containers.
Avoid touching pins, leads, or circuitry.
●
●
●
●
●
Always be properly grounded when touching a static-sensitive component or assembly.
Grounding Methods
There are several methods for grounding. Use one or more of the following methods when handling or
installing electrostatic-sensitive parts:
Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis. Wrist
straps are flexible straps with a minimum of 1 megohm +/- 10 percent resistance in the ground
cords. To provide proper ground, wear the strap snug against the skin.
●
●
Use heelstraps, toestraps, or bootstraps at standing workstations. Wear the straps on both feet
when standing on conductive floors or dissipating floor mats.
Use conductive field service tools.
●
●
Use a portable field service kit with a folding static-dissipating work mat.
If you do not have any of the suggested equipment for proper grounding, contact an HP authorized
dealer, reseller, or service provider.
NOTE: For more information on static electricity, contact an HP authorized dealer, reseller, or service
provider.
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E Computer Operating Guidelines,
Routine Care and Shipping Preparation
Computer Operating Guidelines and Routine Care
Follow these guidelines to properly set up and care for the computer and monitor:
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.
●
Never operate the computer with the access panel or any of the expansion card slot covers
removed.
●
●
●
Do not stack computers on top of each other or place computers so near each other that they are
subject to each other’s re-circulated or preheated air.
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must
be provided on the enclosure, and the same operating guidelines listed above will still apply.
Keep liquids away from the computer and keyboard.
●
●
●
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.
Turn off the computer before you do either of the following:
●
Wipe the exterior of the computer with a soft, damp cloth as needed. Using cleaning products
may discolor or damage the finish.
◦
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.
◦
50 Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation
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Optical Drive Precautions
Be sure to observe the following guidelines while operating or cleaning the optical drive.
Operation
Do not move the drive during operation. This may cause it to malfunction during reading.
●
●
Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the
unit. If the temperature suddenly changes while the drive is on, wait at least one hour before you
turn off the power. If you operate the unit immediately, it may malfunction while reading.
Avoid placing the drive in a location that is subject to high humidity, extreme temperatures,
mechanical vibration, or direct sunlight.
●
Cleaning
Clean the panel and controls with a soft, dry cloth or a soft cloth lightly moistened with a mild
detergent solution. Never spray cleaning fluids directly on the unit.
●
Avoid using any type of solvent, such as alcohol or benzene, which may damage the finish.
●
Safety
If any object or liquid falls into the drive, immediately unplug the computer and have it checked by an
authorized HP service provider.
Shipping Preparation
Follow these suggestions when preparing to ship the computer:
1. Back up the hard drive files on PD discs, tape cartridges, CDs, or diskettes. Be sure that the backup
media is not exposed to electrical or magnetic impulses while stored or in transit.
NOTE: The hard drive locks automatically when the system power is turned off.
2. Remove and store all removable media.
3. Insert a blank diskette into the diskette drive to protect the drive while in transit. Do not use a diskette
on which you have stored or plan to store data.
4. Turn off the computer and external devices.
5. Disconnect the power cord from the electrical outlet, then from the computer.
6. Disconnect the system components and external devices from their power sources, then from the
computer.
NOTE: Ensure that all boards are seated properly and secured in the board slots before shipping
the computer.
7. Pack the system components and external devices in their original packing boxes or similar
packaging with sufficient packing material to protect them.
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Index
A
F
M
access panel
front bezel
media card reader
removing 11
features
removing
replacing 10
replacing 13
installing 32
removing 30
front panel components
memory
installing 14
B
H
specifications 14
hard drive
installing 37
removing 34
C
monitor, connecting
connector
headphone connector
mouse connector
I
N
VGA monitor
installation guidelines
installing
network connector
D
battery 42
O
DIMMs. See memory
diskette drive
installing 32
removing 30
drives
memory 14
optical drive
cleaning 51
installing 29
precautions 51
removing 27
installing 24
P
locations 23
K
E
keyboard
components
connector
product ID location
electrostatic discharge, preventing
damage 49
R
expansion card
rear panel components
removing
installing 18
L
removing 18
line-in connector
battery 42
expansion slot cover
removing 20
line-out connector
locks
computer access panel
HP Business PC Security
Lock 46
replacing 21
padlock 46
52 Index
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S
security
HP Business PC Security
Lock 46
padlock 46
serial number location
specifications
computer 40
memory 14
system board drive
connections 26
U
USB ports
front panel
rear panel
V
VGA monitor connector
W
Windows Logo key
ENWW
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