Microsoft and Windows are trademarks of
Microsoft Corporation in the U.S. and other
countries.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products
and services. Nothing herein should be
construed as constituting an additional
warranty. HP shall not be liable for technical
or editorial errors or omissions contained
herein.
This document contains proprietary
information that is protected by copyright. No
part of this document may be photocopied,
reproduced, or translated to another
language without the prior written consent of
Hewlett-Packard Company.
Hardware Reference Guide
HP Compaq Business PC
dx7300 Microtower Model
First Edition (August 2006)
Document Part Number: 418629-001
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.
CAUTIONText set off in this manner indicates that failure to follow directions could result in
damage to equipment or loss of information.
NOTEText set off in this manner provides important supplemental information.
ENWWiii
iv About This BookENWW
Table of contents
1 Product Features
Standard Configuration Features ......................................................................................................... 1
Front Panel Components ..................................................................................................................... 2
Media Card Reader Components ......................................................................................................... 3
Index ................................................................................................................................................................... 47
viENWW
1Product 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 on the
Documentation and Diagnostics CD.
Figure 1-1 Microtower Configuration
ENWWStandard Configuration Features1
Front Panel Components
Drive configuration may vary by model.
Table 1-1 Front Panel Components
15.25-inch Optical Drives
2Optical Drive Activity Lights8Dual-State Power Button
33.5-inch Diskette Drive (optional) and 3.5-inch Drive
6USB (Universal Serial Bus) Ports12Microphone Connectors
NOTE An optical drive is a CD-ROM, CD-R/RW, DVD-ROM , DVD+R/RW, or CD-RW/DVD Combo drive.
1
Some models have bezel blanks covering one or both of the 5.25-inch drive bays.
2
Some models are configured with a media card reader in an external 3.5-inch drive bay. Other models have these bays
covered by bezel blanks.
1
2
7Optical Drive Eject Buttons
9Power On Light
2Chapter 1 Product FeaturesENWW
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.
3PS/2 Keyboard Connector (purple)9Line-Out Connector for powered audio
4Universal Serial Bus (USB)10Line-In Audio Connector (blue)
5Serial Connector11Microphone Connector (pink)
6RJ-45 Network Connector
NOTE Arrangement and number of connectors may vary by model.
The monitor connector on the system board is inactive when a PCI Express graphics card is installed in the
computer.
If a PCI 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 Boot Order, refer to the Computer Setup (F10) Utility Guide on the Documentation and DiagnosticsCD.
devices (green)
4Chapter 1 Product FeaturesENWW
Keyboard
Table 1-4 Keyboard Components
1Function KeysPerform special functions depending on the software application being used.
2Editing KeysIncludes the following: Insert, Home, Page Up, Delete, End, and Page Down.
3Status LightsIndicate the status of the computer and keyboard settings (Num Lock, Caps Lock,
4Numeric KeysWork like a calculator keypad.
and Scroll Lock).
5Arrow KeysUsed to navigate through a document or Web site. These keys allow you to move
6Ctrl KeysUsed in combination with another key; their effect depends on the application
7Application Key
8Windows Logo Keys
9Alt KeysUsed in combination with another key; their effect depends on the application
1
Keys available in select geographic regions.
1
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.
ENWWKeyboard5
Using the Windows Logo Key
Use the Windows Logo key in combination with other keys to perform certain functions available in the
Windows operating system. Refer to the
Windows Logo KeyDisplays or hides the Start menu
Windows Logo Key + dDisplays the Desktop
Windows Logo Key + mMinimizes all open applications
Shift + Windows Logo Key + mUndoes Minimize All
Windows Logo Key + eLaunches My Computer
Windows Logo Key + fLaunches Find Document
Windows Logo Key + Ctrl + fLaunches Find Computer
Windows Logo Key + F1Launches Windows Help
Keyboard section to identify the Windows Logo key.
Windows Logo Key + lLocks the computer if you are connected to a network domain, or
Windows Logo Key + rLaunches the Run dialog box
Windows Logo Key + uLaunches the Utility Manager
Windows Logo Key + TabActivates the next Taskbar button
allows you to switch users if you are not connected to a network
domain
6Chapter 1 Product FeaturesENWW
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.
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 1-2 Serial Number and Product ID Location
ENWWSpecial Mouse Functions7
8Chapter 1 Product FeaturesENWW
2Hardware Upgrades
Serviceability Features
The computer includes features that make it easy to upgrade and service. No tools are needed for most
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, 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
http://www.hp.com/ergo and on the Documentation and Diagnostics CD.
CAUTIONStatic 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,
Discharge for 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
ENWWServiceability Features9
Unlocking the Smart Cover Lock
NOTEThe Smart Cover Lock is an optional feature included on some models only.
The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock
prevents unauthorized access to the internal components. The computer ships with the Smart Cover
Lock in the unlocked position. For more information about locking the Smart Cover Lock, refer to the
Desktop Management Guide on the Documentation and Diagnostics CD.
Smart Cover FailSafe Key
If you enable the Smart Cover Lock and cannot enter your password to disable the lock, you will need
a Smart Cover FailSafe Key to open the computer cover. You will need the key to access the internal
computer components in any of the following circumstances:
Power outage
●
Startup failure
●
PC component (for example, processor or power supply) failure
●
Forgotten password
●
NOTEThe Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared;
order this key before you need one.
To obtain a FailSafe Key:
Contact an authorized HP reseller or service provider. Order PN 166527-001 for the wrench-style
●
key or PN 166527-002 for the screwdriver bit key.
Refer to the HP Web site (
●
Call the appropriate number listed in the warranty or in the Support Telephone Numbers guide on
●
the Documentation and Diagnostics CD.
http://www.hp.com) for ordering information.
Using the Smart Cover FailSafe Key to Remove the Smart Cover Lock
To open the access panel with the Smart Cover Lock engaged:
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.
CAUTIONRegardless 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.
10Chapter 2 Hardware UpgradesENWW
5.Use the Smart Cover FailSafe Key to remove the two tamper-proof screws that secure the Smart
Cover Lock to the bottom of the chassis.
Figure 2-1 Removing the Smart Cover Lock Screws
6.Remove the access panel.
To reattach the Smart Cover Lock, secure the lock in place with the tamper-proof screws.
ENWWUnlocking the Smart Cover Lock11
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.
CAUTIONRegardless 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 captive thumbscrew (1) that secures the access panel to the computer chassis.
6.Slide the access panel back (2) about 2.5 cm (1 inch), then lift it off the unit.
NOTEYou may want to lay the computer on its side to install internal parts. Be sure the
side with the access panel and pull grip is facing up.
Figure 2-2 Removing the Computer Access Panel
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
12Chapter 2 Hardware UpgradesENWW
Replacing the Computer Access Panel
Place the access panel in the proper position on the chassis and slide it into place (1). Ensure that the
hole for the thumbscrew is aligned with the hole in the chassis and tighten the thumbscrew (2).
Figure 2-3 Replacing the Computer Access Panel
ENWWReplacing the Computer Access Panel13
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.
CAUTIONRegardless 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.
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
6.To remove the front bezel, press down on all three tabs on the left side of the bezel (1) then rotate
the bezel off the chassis (2), beginning with the left side then the right side.
Figure 2-4 Removing the Front Bezel
14Chapter 2 Hardware UpgradesENWW
Replacing the Front Bezel
Position the chassis in the upright position. Insert the two hooks on the right side of the bezel and the
one hook at the top of the bezel (1) into the rectangular holes on the chassis then rotate the bezel into
place (2) so that the three tabs on the left side of the bezel snap into the slots on the chassis.
Figure 2-5 Replacing the Front Bezel
ENWWReplacing the Front Bezel15
Installing Additional Memory
The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2SDRAM) 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 8 GB of memory configured in a highperforming dual channel mode.
DDR2-SDRAM DIMMs
For proper system operation, the DDR2-SDRAM DIMMs must be:
support CAS latency 4 (DDR2/533 MHz and DDR2/667 MHz) and CAS latency 5 (DDR2/667 MHz
●
and DDR2/800 MHz)
contain the mandatory JEDEC SPD information
●
In addition, the computer supports:
256Mbit, 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
NOTEThe system will not start if you install unsupported DIMMs.
16Chapter 2 Hardware UpgradesENWW
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
ItemDescriptionSocket Color
1DIMM socket XMM1, Channel ABlack
2DIMM socket XMM2, Channel AWhite
3DIMM socket XMM3, Channel BWhite
4DIMM socket XMM4, Channel BWhite
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 256MB DIMMs and Channel B is populated with one 512MB 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
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. For example,
if you are populating the sockets with one 1GB DIMM, two 512MB DIMMs, and one 256MB DIMM,
one channel should be populated with the 1GB DIMM and one 256MB DIMM and the other channel
ENWWInstalling Additional Memory17
should be populated with the two 512MB DIMMs. With this configuration, 2 GB will run as dual
channel and 256 MB will run as single channel.
In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
●
Installing DIMMs
CAUTIONYou must disconnect the power cord 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.
After removing the access panel, look for the LED on the system board to the right of the DIMM
sockets. If the LED is illuminated, the system still has power. Turn off the computer and remove
the power cord before proceeding.
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,
When handling a memory module, be careful not to touch any of the contacts. Doing so may
damage the module.
Electrostatic Discharge.
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.
CAUTIONRegardless 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.
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
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.
18Chapter 2 Hardware UpgradesENWW
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
NOTEA 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 black XMM1 socket.
For maximum performance, populate the sockets so that the memory capacity is spread as
equally as possible between Channel A and Channel B. Refer to
Populating DIMM
Sockets for more information.
8.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 (3).
9.Repeat steps 7 and 8 to install any additional modules.
10. Replace the computer access panel.
11. Reconnect the power cord and turn on the computer.
12. Lock any security devices that were disengaged when the computer access panel was removed.
The computer should automatically recognize the additional memory the next time you turn on the
computer.
ENWWInstalling Additional Memory19
Removing or Installing an Expansion Card
The computer has two standard PCI expansion slots that can accommodate an expansion card up to
17.46 cm (6.875 inches) in length. The computer also has one PCI Express x1 expansion slot and one
PCI Express x16 expansion slot.
Figure 2-8 Expansion Slot Locations
ItemDescription
1PCI expansion slot
2PCI expansion slot
3PCI Express x1 expansion slot
4PCI Express x16 expansion slot
NOTEYou 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.
CAUTIONRegardless 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.
20Chapter 2 Hardware UpgradesENWW
5.Remove the computer access panel.
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
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 sliding slot cover lock secures the expansion card brackets and
expansion slot covers in place. Remove the thumbscrew that holds the slot cover lock in place (1)
and slide the slot cover lock away from the brackets (2) so that they are no longer secured by the
lock.
Figure 2-9 Releasing the Slot Cover Lock
8.Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
ENWWRemoving or Installing an Expansion Card21
NOTEBefore 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, remove the appropriate expansion
slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside
of the chassis.
Figure 2-10 Removing an Expansion Slot Cover
22Chapter 2 Hardware UpgradesENWW
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. Pull the expansion card straight up
from the socket (1) then away from the inside of the chassis (2) to release it from the chassis
frame. Be sure not to scrape the card against the other components.
Figure 2-11 Removing a Standard PCI Expansion Card
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. Pull the expansion card straight up from the socket then away from the
inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against
the other components.
Figure 2-12 Removing a PCI Express x16 Expansion Card
ENWWRemoving or Installing an Expansion Card23
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.
CAUTIONAfter removing an expansion card, you must replace it with a new card or
expansion slot cover for proper cooling of internal components during operation.
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 (1) so that the bracket on the card is
aligned with the open slot on the rear of the chassis. Press the card straight down into the expansion
socket on the system board (2).
Figure 2-13 Installing an Expansion Card
NOTEWhen installing an expansion card, press firmly on the card so that the whole
connector seats properly in the expansion card slot.
24Chapter 2 Hardware UpgradesENWW
12. While holding the expansion card bracket against the chassis, slide the slot cover lock down toward
the expansion card brackets and slot covers (1) to secure them in place and replace the
thumbscrew (2) that secures the slot cover lock.
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.
15. Reconnect the power cord and turn on the computer.
16. Lock any security devices that were disengaged when the computer access panel was removed.
17. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide on the
Documentation and Diagnostics CD for instructions about using Computer Setup.
To verify the type and size of the storage devices installed in the computer, run Computer Setup. Refer
to the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics CD for more
information.
26Chapter 2 Hardware UpgradesENWW
Installing Additional Drives
The computer supports up to five drives that may be installed in various configurations.
When installing additional drives, follow these guidelines:
The primary Serial ATA (SATA) hard drive must be connected to the dark blue 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 P10.
●
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.
●
You must install guide screws to ensure the drive will line up correctly in the drive cage and lock
●
in place. HP has provided extra guide screws installed on the chassis. The hard drive uses 6-32
standard screws, four of which are installed on the hard drive bracket under the access panel. All
other drives use M3 metric screws, eight of which are installed on the diskette drive bracket under
the access panel. The HP-supplied metric screws are black. The HP-supplied standard screws are
silver.
CAUTIONTo 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 D,
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.”
Electrostatic Discharge.
ENWWInstalling Additional Drives27
Removing a Drive from a Drive Bay
CAUTIONAll removable media should be taken out of a drive before removing the drive from
the computer.
NOTEBefore 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 the Restore Plus! CD set that you created when you initially set up
the computer 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, create it now. Refer to
the HP Backup and Recovery Manager User Guide in the Windows Start menu for more
information. You may wish to print this guide for easy reference.
The system does not support Parallel ATA (PATA) hard drives.
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.
CAUTIONRegardless 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.
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
6.Remove the front bezel.
7.Disconnect the drive cables, as indicated in the following illustrations.
a.If you are removing an optical drive, disconnect the power cable (1) and data cable (2) from
the back of the drive.
Figure 2-16 Disconnecting the Optical Drive Cables
28Chapter 2 Hardware UpgradesENWW
b.If you are removing a diskette drive, disconnect the data cable (1) and power cable (2) from
the back of the drive.
Figure 2-17 Disconnecting the Diskette Drive Cables
c.If you are removing a hard drive, disconnect the power cable (1) and data cable (2) from the
back of the drive.
Figure 2-18 Disconnecting the Hard Drive Cables
ENWWInstalling Additional Drives29
d.If your are removing a media card reader, disconnect the USB cable from the PCI card.
Figure 2-19 Disconnecting the Media Card Reader Cable
8.A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release tab on
the latch drive bracket (1) for the drive you want to remove, then slide the drive from its drive bay
(2).
Figure 2-20 Removing the Drives
9.Remove the four guide screws (two on each side) from the old drive. You will need these screws
to install a new drive.
30Chapter 2 Hardware UpgradesENWW
Installing a Drive
NOTEAn optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD+R/RW, or CD-RW/DVD
Combo drive.
A 3.5-inch drive may be a diskette drive or a media card reader.
The system does not support Parallel ATA (PATA) hard drives or optical drives.
1.Install the four guide screws (two on each side) that were removed from the old drive into the new
drive. The screws help guide the drive into its proper position in the bay. Extra guide screws are
provided on the front of the chassis under the front bezel.
NOTEThere are a total of eight extra guide screws on the front of the chassis under the
bezel. Four have 6-32 standard threads and four have M3 metric threads. Standard screws
are used for hard drives and have a silver finish. Metric screws are used for all other drives
and have a black finish. Make sure to install the appropriate guide screws into the drive.
2.Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until
the drive snaps into place.
Figure 2-21 Sliding the Drives into the Drive Cage
ENWWInstalling Additional Drives31
3.Connect the power and data cables to the drive as indicated in the following illustrations.
a.If you are installing an optical drive, connect the power cable (1) and data cable (2) to the back
of the drive.
Figure 2-22 Connecting the Optical Drive Cables
b.If you are installing a diskette drive, connect the data cable (1) and power cable (2) to the back
of the drive.
Figure 2-23 Connecting the Diskette Drive Cables
32Chapter 2 Hardware UpgradesENWW
c.If you are installing a hard drive, connect the power cable (1) and data cable (2) to the back
of the drive.
Figure 2-24 Connecting the Hard Drive Cables
4.If you are installing a new drive, connect the opposite end of the data cable to the appropriate
system board connector.
NOTEIf 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.
If you are installing a SATA optical drive, connect the first optical drive to the white SATA
connector on the system board labeled SATA1. Connect a second optical drive to the orange
SATA connector labeled SATA3.
If you are installing a diskette drive, connect it to the connector on the system board labeled
FLOPPY P10.
If your are installing a media card reader, install the PCI card included with the media card
reader and connect the USB cable from the media card reader to the USB connector on the
PCI card.
5.Replace the front bezel and computer access panel.
6.Reconnect the power cord and turn on the computer.
7.Lock any security devices that were disengaged when the computer access panel was removed.
NOTEIf you replaced the primary hard drive, use the Restore Plus! CD set that you created
when you initially set up the computer to restore the operating system, software drivers, and any
software applications that were preinstalled on the computer. When the restore process has
completed, reinstall any personal files that you backed up before replacing the hard drive.
ENWWInstalling Additional Drives33
34Chapter 2 Hardware UpgradesENWW
ASpecifications
Desktop Dimensions
Height
Width
Depth
(depth will increase if the computer is equipped with a port
security bracket)
Approximate Weight23.8 lb10.82 kg
Temperature Range
Operating
Nonoperating
Relative Humidity (noncondensing)
Operating
Nonoperating (38.7°C max wet bulb)
Maximum Altitude (unpressurized)
Operating
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.
14.5 in
6.88 in
16.5 in
50° to 95°F
-22° to 140°F
10-90%
5-95%
10,000 ft
30,000 ft
36.8 cm
17.5 cm
42.0 cm
10° to 35°C
-30° to 60°C
10-90%
5-95%
3048 m
9144 m
Heat Dissipation
Maximum
Typical (idle)
Power Supply
Operating Voltage Range
Rated Voltage Range
Rated Line Frequency
Power Output365 W365 W
1
1916 BTU/hr
340 BTU/hr
115V
90-264 VAC
100-240 VAC
50-60 Hz
483 kg-cal/hr
86 kg-cal/hr
230V
90-264 VAC
100-240 VAC
50-60 Hz
ENWW35
Rated Input Current (maximum)
1
This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark
1
6A @ 100 VAC3A @ 200 VAC
requirements for use in the countries of the European Union. The active power factor corrected power supply also
has the added benefit of not requiring an input voltage range select switch.
36Appendix A SpecificationsENWW
BBattery 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.
CAUTIONBefore 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 on the Documentation and Diagnostics CD 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.
NOTEThe 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
recycle.
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.
http://www.hp.com/
CAUTIONRegardless 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.
ENWW37
5.Remove the computer access panel.
CAUTIONAfter removing the access panel, look for the LED on the system board to the
right of the DIMM sockets. If the LED is illuminated, the system still has power. Turn off the
computer and remove the power cord before proceeding.
6.Locate the battery and battery holder on the system board.
NOTEOn 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).
38Appendix B Battery ReplacementENWW
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).
b.Insert the new battery and position the clip back into place.
Figure B-3 Removing a Coin Cell Battery (Type 3)
NOTEAfter 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 on the Documentation and Diagnostics CD.
11. Lock any security devices that were disengaged when the computer access panel was removed.
ENWW39
40Appendix B Battery ReplacementENWW
CExternal Security Devices
NOTEFor information on data security features, refer to the Computer Setup (F10) Utility
Guide and the Desktop Management Guide on the Documentation and Diagnostics CD and
the HP ProtectTools Security Manager Guide (some models) at
Installing a Security Lock
The security locks displayed below and on the following page can be used to secure the computer.
Cable Lock
http://www.hp.com.
Figure C-1 Installing a Cable Lock
ENWWInstalling a Security Lock41
Padlock
Figure C-2 Installing a Padlock
42Appendix C External Security DevicesENWW
DElectrostatic 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.
NOTEFor more information on static electricity, contact an HP authorized dealer, reseller, or
service provider.
ENWWPreventing Electrostatic Damage43
44Appendix D Electrostatic DischargeENWW
EComputer 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 cover or side panel 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.
ENWWComputer Operating Guidelines and Routine Care45
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.
NOTEThe 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.
NOTEEnsure 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.
46Appendix E Computer Operating Guidelines, Routine Care and Shipping PreparationENWW
Index
A
access panel
locking and unlocking10, 41
removing12
replacing13