Hardware Reference Guide
HP Business Desktop
dx6050 Microtower Model
Document Part Number: 362000-001
May 2004
This guide provides detailed information on the features and use of
the HP dx6050 Microtower, and includes instructions for removing
and replacing internal components.
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© Copyright 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
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.
WARNING: Text set off in this manner indicates that failure to follow
directions could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of information.
Hardware Reference Guide
HP Business Desktop
dx6050 Microtower Model
First Edition (May 2004)
Document Part Number: 362000-001
Contents
1 Product Features
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Front Panel Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Rear Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Keyboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Standard Keyboard Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Easy Access Keyboard Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Customizing the Easy Access Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Windows Logo Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
2 Hardware Upgrades
Serviceability Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Installation Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Unlocking the Smart Cover Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Using the Smart Cover FailSafe Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Removing the Computer Access Panel and Front Bezel. . . . . . . . . . . . . . . . . . . . . . . . 2–5
Reassembling the Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Installing Additional Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
DDR-SDRAM DIMMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
Replacing or Upgrading a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
Locating Drive Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Removing a Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Replacing a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Removing or Installing an Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–25
Hardware Reference Guide www.hp.com iii
Contents
A Specifications
B Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA Devices. . . . . . . . . . . . . . . . . . . . . . . B–1
Guidelines for Installing Ultra ATA Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1
C Battery Replacement
D Security Provisions
Cable Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
Padlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
Universal Chassis Clamp Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–3
Without Security Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–3
With Security Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–5
Port Security Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–7
Installing the Port Security Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–7
Removing the Port Security Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–10
E Electrostatic Discharge
Preventing Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
Grounding Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
F Routine Computer Care and Shipping Preparation
Routine Computer Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–1
Optical Drive Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2
Shipping Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–3
Index
iv www.hp.com Hardware Reference Guide
Standard Features
Features of the HP dx6050 Business Desktop, Microtower model,
may vary depending on the model. For a complete listing of the
hardware and software installed in the computer, run the Diagnostics
for Windows utility. Instructions for using this utility are provided in
the Troubleshooting Guide on the Documentation Library CD.
1
Product Features
HP dx6050 Microtower
Hardware Reference Guide www.hp.com 1–1
Product Features
Front Panel Components
Front Panel Components
1 Optical Drives (CD-ROM, CD-R/RW,
DVD-ROM, DVD-R/RW, or CD-RW/DVD
Combo Drive)
2 Optical Drive Activity Lights 8 Power Button
3 Diskette Drive (optional) 9 Power On Light
4 Diskette Drive Activity Light - Hard Drive Activity Light
5 Diskette Eject Button q Headphone Jack
6 USB (Universal Serial Bus) Ports w Microphone Connector
1–2 www.hp.com Hardware Reference Guide
7 Optical Drive Eject Buttons
Rear Panel Components
Product Features
Rear Panel Components
1 Power Cord Connector 7
2 Voltage Select Switch 8
3
4
5
6
✎
PS/2 Mouse Connector 9
b
PS/2 Keyboard Connector -
a
Universal Serial Bus (USB) q
o
m
Serial Connector w
Arrangement and number of connectors may vary by model.
When an AGP expansion card is installed in the computer, the monitor connector on the
system board is inactive unless the default setting is changed in the BIOS. The monitor must be
connected to the monitor connector on the installed AGP card for proper operation. If the
monitor is not connected to the correct connector, it will not function properly.
RJ-45 Connector
n
Parallel Connector
l
Monitor Connector (2)
c
Headphone/Line-Out Connector
h
Line-In Audio Connector
j
Microphone Connector
g
Hardware Reference Guide www.hp.com 1–3
Product Features
Keyboards
Keyboard availability varies by region.
Standard Keyboard Components
1 Function Keys Perform special functions depending on the software application
being used.
2 Editing Keys Includes the following: Insert, Home, Page Up, Delete,
End, and Page Down.
3 Status Lights Indicate the status of the computer and keyboard settings
(Num Lock, Caps Lock, and Scroll Lock).
4 Numeric Keys Work like a calculator keypad.
5 Arrow Keys Used to navigate through a document or Web site. These keys
allow you to move left, right, up, and down, using the keyboard
instead of the mouse.
6 Ctrl Keys Used in combination with another key; its effect depends on the
application software you are using.
7 Application Key* Used (like the right mouse button) to open pop-up menus in a
Microsoft Office application. May perform other functions in
other software applications.
8 Windows Logo
Keys*
9 Alt Keys Used in combination with another key; its effect depends on the
*Keys available in select geographic regions.
Used to open the Start menu in Microsoft Windows. Used in
combination with other keys to perform other functions.
application software you are using.
1–4 www.hp.com Hardware Reference Guide
Product Features
Easy Access Keyboard Components
1 Function Keys Perform special functions depending on the software application
being used.
2 Easy Access Buttons Provide quick access to specific Internet destinations.
3 Editing Keys Includes the following: Insert, Home, Page Up, Delete,
End, and Page Down.
4 Status Lights Indicate the status of the computer and keyboard settings
(Num Lock, Caps Lock, and Scroll Lock).
5 Numeric Keys Work like a calculator keypad.
6 Arrow Keys Used to navigate through a document or Web site. These keys
allow you to move left, right, up, and down, using the keyboard
instead of the mouse.
7 Ctrl Keys Used in combination with another key; its effect depends on the
application software you are using.
8 Application Key* Used (like the right mouse button) to open pop-up menus in a
Microsoft Office application. May perform other functions in
other software applications.
9 Windows Logo
Keys*
Used to open the Start menu in Microsoft Windows. Used in
combination with other keys to perform other functions.
- Alt Keys Used in combination with another key; its effect depends on the
application software you are using.
*Keys available in select geographic regions.
Hardware Reference Guide www.hp.com 1–5
Product Features
Customizing the Easy Access Buttons
All Easy Access buttons can be reprogrammed to open any software
application or data file on the hard drive, or any Internet address.
To reprogram the Easy Access buttons, complete the following steps:
1. Double-click the keyboard icon in the notification area (lower
right corner) of the Windows taskbar. The Keyboard Properties
dialog box is displayed.
2. Click the Help button on the Keyboard Properties dialog box for
instructions.
Windows Logo Key
Use the Windows Logo key in combination with other keys to
perform certain functions available in the Windows operating system.
Refer to the
Keyboard Components” section to identify the Windows Logo key.
“Standard Keyboard Components” or “Easy Access
Windows Logo Key Functions
Windows Logo Key Displays or hides the Start menu.
Windows Logo Key + d Displays the Desktop.
Windows Logo Key + m Minimizes all open applications.
Shift + Windows Logo Key + m Undoes Minimize All.
Windows Logo Key + e Launches My Computer.
Windows Logo Key + f Launches Find Document.
Windows Logo Key + Ctrl + f Launches Find Computer.
Windows Logo Key + F1 Launches Windows Help.
Windows Logo Key + l Locks the computer if you are connected to a
network domain, or allows you to switch users if you
are not connected to a network domain.
Windows Logo Key + r Launches the Run dialog box.
Windows Logo Key + u Launches the Utility Manager.
Windows Logo Key + Tab Activates the next Taskbar button.
1–6 www.hp.com Hardware Reference Guide
Serial Number Location
Each computer has a unique serial number that is located on the
top cover of the computer. Keep this number available for use when
contacting HP customer service for assistance.
Product Features
Serial Number Location
Hardware Reference Guide www.hp.com 1–7
Serviceability Features
The HP dx6050 Microtower includes features that make it easy to
upgrade and service.
Installation Sequence
It is very important that you follow this sequence of steps to ensure
the proper installation of any optional equipment. For more
information about Computer Setup, refer to the Computer Setup
(F10) Utility Guide. If the computer is powered on, turn it off and
disconnect the power cord from the wall outlet.
WARNING: To reduce the risk of personal injury from electrical shock
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and/or hot surfaces, be sure to disconnect the power cord from the wall
outlet, and allow the internal system components to cool before touching.
2
Hardware Upgrades
WARNING: To reduce the risk of electrical shock, fire, or damage to
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Hardware Reference Guide www.hp.com 2–1
the equipment, do not plug telecommunications/telephone connectors
into the network interface controller (NIC) receptacles.
CAUTION: 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. Refer to Appendix E, “Electrostatic Discharge” in
this guide for additional information on preventing electrostatic discharge.
CAUTION: Before removing the computer access panel ensure that the
computer is turned off and that the power cord is disconnected from the
electrical outlet.
Hardware Upgrades
1. Open the computer by removing the access panel. See the
procedure in “Removing the Computer Access Panel and
Front Bezel” for details.
2. Install any optional equipment. See the applicable sections of this
guide or the documentation provided with the optional equipment
for instructions.
3. Replace the computer access panel.
4. Turn on the monitor, computer, and any devices you want to test.
5. Reconfigure the computer, if necessary. Refer to the
Computer Setup (F10) Utility Guide on the Documentation
Library CD for instructions about using Computer Setup.
6. If you normally lock the Smart Cover Lock, use Computer Setup
to relock the lock and enable the Smart Cover Sensor . Refer to the
Desktop Management Guide on the Documentation Library CD
for more information about the Smart Cover Lock and Smart
Cover Sensor.
Unlocking the Smart Cover Lock
✎
Using the Smart Cover FailSafe Key
The Smart Cover Lock is an optional feature and is av ailable on select
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.
If you enable the Smart Cover Lock and cannot enter your password
to disable the lock, you will need a Smart Cover FailSafe K e y to open
the computer cover. You will need the key in any of the following
circumstances:
■ Power outage
■ Startup failure
2–2 www.hp.com Hardware Reference Guide
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Hardware Upgrades
■ PC component (for example, processor or power supply) failure
■ Forgotten password
CAUTION: The 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 (www.hp.com) for ordering
information.
■ Call the appropriate number listed in the warranty.
Hardware Reference Guide www.hp.com 2–3
Hardware Upgrades
To open the computer cover using the FailSafe Key:
1. Turn off the computer and any external devices.
2. Disconnect the power cord from the power outlet and the
computer and disconnect any external devices.
3. Use the FailSafe Key to remove the Smart Cover Lock.
Removing the Smart Cover Lock Screws
To reattach the Smart Cover Lock, secure the lock in place with the
tamper-proof screws using the FailSafe Key.
2–4 www.hp.com Hardware Reference Guide
Hardware Upgrades
Removing the Computer Access Panel and
Front Bezel
To remove the computer access panel:
1. If you have locked the Smart Co v er Lock, use Computer Setup to
unlock the lock. Refer to the Desktop Management Guide on the
Documentation Library CD for more information about the Smart
Cover Lock.
2. Turn off the computer properly through the operating system,
then turn off any external devices.
3. Disconnect the power cord from the power outlet 1 and the
computer 2, and disconnect any external devices.
Disconnecting the Power Cable
CAUTION: Before removing the computer access panel, ensure that the
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Hardware Reference Guide www.hp.com 2–5
computer is turned off and that the power cord is disconnected from the
electrical outlet.
Hardware Upgrades
4. Loosen the captive thumbscre w 1 that secures the access panel to
the computer chassis.
5. Slide the access panel 2 back about 1 inch (2.5 cm), then lift it
off the unit.
✎
You 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.
Removing the Computer Access Panel
2–6 www.hp.com Hardware Reference Guide
Hardware Upgrades
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.
Removing the Front Bezel
Hardware Reference Guide www.hp.com 2–7
Hardware Upgrades
Reassembling the Computer
1. Position the chassis in the upright position. Insert the three hooks
on the right side of the bezel 1 into the rectangular holes on the
chassis then rotate the bezel into place so that the three tabs on the
left side of the bezel snap into the slots on the chassis 2.
Replacing the Front Bezel
2–8 www.hp.com Hardware Reference Guide
Hardware Upgrades
2. Place the side 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.
Replacing the Side Access Panel
Hardware Reference Guide www.hp.com 2–9
Hardware Upgrades
3. Reconnect the power cable to the computer 1 and plug the cable
into an electrical outlet 2.
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Reconnecting the Power Cable
4. Reconnect all peripheral devices to the computer.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telecommunications or telephone connectors into
the network interface controller (NIC) ports.
5. Turn on the computer by pressing the power button.
6. If you normally lock the Smart Cover Lock, use Computer Setup
to relock the lock and enable the Smart Cover Sensor . Refer to the
Desktop Management Guide on the Documentation Library CD
for more information about the Smart Cover Lock and Smart
Cover Sensor.
2–10 www.hp.com Hardware Reference Guide
Installing Additional Memory
The computer comes with Double Data Rate-Synchronous Dynamic
Random Access Memory (DDR-SDRAM) Dual Inline Memory
Modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with
industry-standard DIMMs. These memory module slots are populated
with at least one preinstalled memory module. To achieve the
maximum memory support, you may be required to replace the
preinstalled DIMM with a higher capacity DIMM.
If you are adding a second DIMM or replacing a single smaller
DIMM with two larger DIMMs, both DIMMs should be of the same
speed and capacity in order to achieve a higher performing,
dual-channel mode. The system will automatically operate in
single-channel mode or a higher performing, dual-channel mode,
depending on how the DIMMs are installed.
Hardware Upgrades
■ If only one DIMM is installed, the system will operate in a
single-channel mode.
■ If two DIMMs are installed, the system will operate in a
dual-channel mode. The maximum operating speed will be
determined by the slowest DIMM. For example, if the system is
populated with a 266-MHz DIMM and a 333-MHz DIMM, the
system will run at only 266 MHz. For maximum performance
improvement, install identical high-performance DIMMs.
DDR-SDRAM DIMMs
For proper system operation, the DIMMs must be industry-standard
184-pin 2.5 volt DDR-SDRAM DIMMs with appropriate
MHz-compliant CAS Latency:
❏ unbuffered PC 2100 266-MHz-compliant CAS Latency 2 or
or
❏ unbuffered PC 2700 333-MHz-compliant CAS Latency 2.5
2.5 (CL = 2 or CL = 2.5)
(CL = 2.5)
Hardware Reference Guide www.hp.com 2–11
Hardware Upgrades
The DDR-SDRAM DIMMs must also contain the mandatory Joint
Electronic Device Engineering Council (JEDEC) Serial Presence
Detect (SPD) information. DIMMs constructed with x4 SDRAM are
not supported; the system may not start using unsupported DIMMs.
The computer memory will run at its rated frequency, unless that is
faster than the processor frequency. If the module frequency is faster,
then the computer will run at the processor frequency.
✎
Processor
Front-Side-Bus
Memory Module
Type
Actual Memory
Frequency
(FSB) Frequency
200 MHz PC2100 (266 MHz) 200
200 MHz PC2700 (333 MHz) 200
266 MHz PC2100 (266 MHz) 266
266 MHz PC2700 (333 MHz) 266
333 MHz PC2100 (266 MHz) 266
333 MHz PC2700 (333 MHz) 333
The PC1600 (200 MHz) and PC3200 (400 MHz) may work, but are
not supported.
The system may not start using unsupported DIMMs.
Refer to the Computer Setup (F10) Utility Guide for information on
how to determine the processor bus frequency of a specific computer.
2–12 www.hp.com Hardware Reference Guide
Removing or Installing DDR-SDRAM DIMMs
CAUTION: The memory module sockets have gold metal contacts. When
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upgrading the memory, it is important to use memory modules with gold
metal contacts to prevent corrosion and/or oxidation resulting from having
incompatible metals in contact with each other.
CAUTION: Static electricity can damage the electronic components of
the computer or optional cards. Before beginning these procedures,
ensure that you are discharged of static electricity by briefly touching a
grounded metal object. Refer to Appendix E, “Electrostatic Discharge” for
more information.
CAUTION: When handling a memory module, be careful not to touch
any of the contacts. Doing so may damage the module.
Preparing the Computer
Hardware Upgrades
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1. If you have locked the Smart Co v er Lock, use Computer Setup to
unlock the lock.
2. Exit all software applications, turn off the computer properly
through the operating system, then turn off any external devices.
3. Disconnect the power cord from the power outlet and disconnect
any external devices.
4. Remove the computer access panel and locate the memory
module sockets.
WARNING: To reduce risk of personal injury from hot surfaces, allow
the internal system components to cool before touching.
Hardware Reference Guide www.hp.com 2–13
Hardware Upgrades
5. Locate the memory module sockets 1.
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DIMM Socket Locations
WARNING: To reduce risk of personal injury from hot surfaces, allow
the internal system components to cool before touching.
Removing a DDR-SDRAM DIMM
1. Press out on both latches of the DIMM socket at the same time.
This releases the module and partially pushes it out of the socket.
2. Lift the module from the socket.
2–14 www.hp.com Hardware Reference Guide
Installing a DDR-SDRAM DIMM
Hardware Upgrades
✎
✎
If only one memory module is used in the system, it must be installed
in the same socket that held the preinstalled memory module.
If you are adding a second DIMM or replacing a single smaller
DIMM with two larger DIMMs, both DIMMs should be of the same
capacity in order to achieve a higher performing, dual-channel mode.
1. Begin by installing a module into the socket nearest the
preinstalled module, and install the modules following the
numerical order of the sockets. Open both latches of the memory
module socket 1, and insert the memory module into the
socket 2.
Installing a DIMM
✎
Hardware Reference Guide www.hp.com 2–15
A memory module can be installed in only one way. Match the notch
on the module with the tab on the memory socket.
2. 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.
Hardware Upgrades
3. Repeat steps 1 and 2 for any additional modules that you want to
install.
4. Complete the procedure described in the “Reassembling the
Computer” section of this chapter.
The computer automatically recognizes the additional memory the
next time you turn on the computer.
Replacing or Upgrading a Drive
The computer supports up to six drives that may be installed in
various configurations.
This section describes the procedure for replacing or upgrading the
storage drives. A Torx screwdriver is needed to replace the guide
screws on a drive.
CAUTION: Make sure you back up your personal files on the hard drive to an
Ä
external storage device, such as a CD, before removing the hard drive. Failure
to do so will result in data loss. After replacing the primary hard drive, you will
need to run the Restore Plus! CD to load the HP factory-installed files.
To prevent loss of work and damage to the computer or drive:
■ If you are inserting or removing a hard drive, shut down the operating
system properly, then turn off the computer. Do not remove a hard
drive while the computer is on or in standby mode.
■ Before handling a drive, ensure that you are discharged of static
electricity. While handling a drive, avoid touching the connector. For
more information about preventing electrostatic damage, see
Appendix E, “Electrostatic Discharge.”
■ Handle a drive carefully; do not drop it.
■ Do not use excessive force when inserting a drive.
■ Avoid exposing a hard drive to liquids, temperature extremes, or
products that have magnetic fields such as monitors or speakers.
■ If a drive must be mailed, place the drive in a bubble-pack mailer or
other suitable protective packaging and label the package “Fragile:
Handle With Care.”
2–16 www.hp.com Hardware Reference Guide
Locating Drive Positions
Hardware Upgrades
1 Optical drive* 4 Bay for optional 3.5” drive
2 Second optical drive 5 Hard drive
3 Diskette drive (optional) 6 Optional hard drive
*An optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD-R/RW,
or CD-RW/DVD Combo drive.
Hardware Reference Guide www.hp.com 2–17
Hardware Upgrades
Removing a Drive
1. If you have locked the Smart Co v er Lock, use Computer Setup to
2. Exit all software applications, shut down the operating system
3. Remove the computer access panel and front bezel. Refer to
4. Disconnect the power and data cables from the back of the drive,
unlock the lock.
software, turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
“Removing the Computer Access Panel and Front Bezel”for
more information.
as indicated in the following illustrations.
Disconnecting the Optical Drive Cables
2–18 www.hp.com Hardware Reference Guide
Hardware Upgrades
Disconnecting the Diskette Drive Cables
Disconnecting the Hard Drive Cables
Hardware Reference Guide www.hp.com 2–19
Hardware Upgrades
5. 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.
Removing the Drives
6. Remove the four guide screws (two on each side) from the old
drive. You will need these screws to install a new drive.
Replacing a Drive
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 bezel.
✎
2–20 www.hp.com Hardware Reference Guide
There are a total of eight extra guide screws on the front of the
chassis. Four have U.S. threads and four have metric threads. Metric
screws hav e a black finish. U.S. scre ws hav e a silver f inish. Make sure
to install the appropriate guide screws into the drive.
Hardware Upgrades
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.
Sliding the Drives into the Drive Cage
Hardware Reference Guide www.hp.com 2–21
Hardware Upgrades
3. Reconnect the power and data cables to the drive as indicated in
the following illustrations.
Reconnecting the Optical Drive Cables
2–22 www.hp.com Hardware Reference Guide
Hardware Upgrades
Reconnecting the Diskette Drive Cables
Reconnecting the Hard Drive Cables
Hardware Reference Guide www.hp.com 2–23
Hardware Upgrades
4. Complete the procedure described in the “Reassembling the
Computer”section of this chapter.
5. Turn on the computer.
6. If you replaced the primary hard drive, insert the Restore Plus!
CD to restore the operating system, software drivers, and/or any
software applications that were preinstalled on the computer from
HP. Follow the instructions in the guide included with the restore
CD. When the restore process has completed, reinstall any
personal files that you backed up before replacing the hard drive.
2–24 www.hp.com Hardware Reference Guide
Hardware Upgrades
Removing or Installing an Expansion Card
No tools are needed to remove, replace, or add an expansion card.
1. If you have locked the Smart Co v er Lock, use Computer Setup to
unlock the lock.
2. Exit all software applications, turn off the computer properly
through the operating system, then turn off any external devices.
3. Disconnect the power cord from the power outlet and disconnect
any external devices.
4. Remove the access panel and lay the computer on its side with the
opening to internal parts where the access panel was located
facing up. (See “Removing the Computer Access Panel and
Front Bezel” for more information.)
5. Slide the slot cover lock located on the rear of the computer aw ay
from the expansion card brackets and expansion slot covers so
that they are no longer secured by the lock.
Releasing the Slot Cover Lock
6. Locate the vacant expansion slot on the system board and remov e
Hardware Reference Guide www.hp.com 2–25
the corresponding slot cover.
Hardware Upgrades
7. If removing an expansion card from a standard expansion socket:
a. Hold the card at each end, and carefully rock it back and forth
until the connectors pull free from the socket.
b. Pull the expansion card straight up from the socket 1 then
away from the inside of the chassis 2 to maneuver the card
out of the computer . Be sure not to scrape the card against the
other components.
Removing an Expansion Card from a Standard Expansion Socket
If replacing or adding a new expansion card, line the card up with
the expansion card slot and press firmly on the card so that the
whole connector seats properly. Slide the slot cover lock down to
secure it in place. Store the old card in the anti-static packaging
that contained the new card.
8. If not replacing the old expansion card with a new card, insert the
metal slot cover in the opened slot and slide the slot cover lock
down to secure the slot cover in place.
CAUTION: After removing an expansion card, you must replace it with a
Ä
2–26 www.hp.com Hardware Reference Guide
new card or cover the open slot at the rear of the computer (for example,
with a metal slot cover or a piece of duct tape) for proper cooling of
internal components during operation.)
Hardware Upgrades
9. If removing an AGP card from an AGP expansion socket with a
retention mechanism:
a. Pull the retention arm away from the socket.
b. Carefully rock the card back and forth until the connectors
pull free from the socket.
c. Pull the expansion card straight up from the socket then away
from the inside of the chassis to maneuver the card out of the
computer. Be sure not to scrape the card against the other
components.
Removing an AGP Card from a Socket with a Retention Mechanism
✎
Hardware Reference Guide www.hp.com 2–27
If you are replacing an expansion card, store the old card in the
anti-static packaging that contained the new card.
10. Complete the procedure described in the “Reassembling the
If replacing or adding a new AGP card, line the card up with the
AGP expansion slot and press f irmly on the card so that the whole
connector seats properly. The retention arm will secure itself
automatically.
Computer” section of this chapter.
A
Specifications
HP dx6050 Microtower
HP dx6050 Microtower Dimensions
Height
Width
Depth (depth will increase by several inches if
the computer is equipped with a port security
bracket)
Approximate Weight 23.8 lb 10.82 kg
Temperature Range
Operating
Nonoperating
14.5 in
6.88 in
16.5 in
50° to 95°F
-22° to 140°F
36.8 cm
17.5 cm
42.0 cm
10° to 35°C
-30° to 60°C
Relative Humidity (noncondensing)
Operating
Nonoperating
Maximum Altitude (unpressurized)
Operating
Nonoperating
Heat Dissipation
Maximum
Typical
Hardware Reference Guide www.hp.com A–1
10-90%
5-95%
10,000 ft
30,000 ft
1260 BTU/hr
256 BTU/hr
10-90%
5-95%
3048 m
9144 m
317 kg-cal/hr
65 kg-cal/hr
Specifications
HP dx6050 Microtower
Input Voltage Switch Setting
115 V 23 0 V
Power Supply
Operating Voltage Range
Rated Voltage Range
Rated Line Frequency
Power Output 240 W 240 W
Rated Input Current (maximum) 6 A @100 VAC 3 A @ 200 VAC
90-132 VAC
100-127 VAC
50-60 Hz
180-264 VAC
200-240 VAC
50-60 Hz
A–2 www.hp.com Hardware Reference Guide
Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA
Devices
Optional drives are available from HP in kits that include a special
drive cable. The configuration of the drive employs a cable-select
feature that identifies the drive as device 0 (master drive) or device 1
(slave drive).
Device 1 is the drive connected to the cable’s middle connector.
Device 0 is the drive connected to the cable’s end connector (applies
only to 80-conductor ATA cables). See “Guidelines for Installing
Ultra ATA Devices” in this appendix for an example of an Ultra
ATA cable.
HP hard drives ship with jumpers preset to cable-select mode;
therefore, no jumper setting changes on the existing or optional driv es
are required. If you purchase a third-party hard drive, refer to the
documentation included with the kit to ensure proper installation and
configuration of cables.
B
If installing a second device on the primary controller, you must use
✎
an 80-conductor Ultra ATA cable for optimal performance. This cable
is standard on select models.
Guidelines for Installing Ultra ATA Devices
When installing additional Ultra ATA drives, follow these guidelines:
■ If using multiple Ultra ATA devices, HP recommends that the
Hardware Reference Guide www.hp.com B–1
devices be split between the primary and secondary Ultra ATA
channels for optimum performance. Use an additional Ultra ATA
cable to connect the additional device to the system board.
Hard Drive Installation Guidelines
■ 80-conductor Ultra ATA cable:
80-Conductor Ultra ATA Cable
❏ 18 inches maximum total length, 80-conductor cable with
maximum spacing of 6 inches between Device 0 and
Device 1.
1 Device 0 (master drive) connector
2 Device 1 (slave drive) connector
3 System board connector
✎
For optimal performance, connect hard drives to the primary
■
controller. Connect expansion devices, such as ATA optical
drives, tape drives, and diskette drives, to the secondary
controller.
■ Install either a third-height or a half-height drive into a
half-height bay.
■ Install guide screws to ensure that the drive lines up correctly in
the drive cage. HP has provided extra guide screws installed in
the front of the computer chassis behind the front bezel. Some
options use M3 metric hardware. HP-supplied metric screws are
black. HP-supplied standard screws are silver.
■ If only one device is connected to a cable, that device must be
attached to the end (Device 0) connector.
If you have only one device, make sure to connect it to the Device 0
connector . If you connect it to the Device 1 connector, the system will
not recognize the device and you may get a “no fixed disk found”
error message.
B–2 www.hp.com Hardware Reference Guide
✎
Å
C
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.
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.
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
Ä
N
Hardware Reference Guide www.hp.com C–1
computer CMOS settings. When the battery is removed or replaced, the
CMOS settings will be cleared. Refer to the Troubleshooting Guide on the
Documentation Library CD for information on backing up the CMOS
settings.
Batteries, battery packs, and accumulators should not be disposed of
together with the general household waste. In order to forward them to
recycling or proper disposal, please use the public collection system or
return them to HP, their authorized partners, or their agents.
Battery Replacement
Ä
✎
CAUTION: 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.
1. If you have locked the Smart Co v er Lock, use Computer Setup to
unlock the lock and disable the Smart Cover Sensor.
2. Shut down the operating system properly, turn off the computer
and any external devices, disconnect the power cord from the
electrical outlet, and remove the computer access panel.
It may be necessary to remove an expansion card to gain access to
the battery.
3. Locate the battery and battery holder on the system board.
4. 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.
Removing a Coin Cell Battery (Type 1)
C–2 www.hp.com Hardware Reference Guide
Battery Replacement
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.
b. When the battery pops up, lift it out.
Removing a Coin Cell Battery (Type 2)
Hardware Reference Guide www.hp.com C–3
Battery Replacement
c. 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 ov er the other edge
of the battery.
Replacing a Coin Cell Battery (Type 2)
After the battery has been replaced, use the following steps to
✎
C–4 www.hp.com Hardware Reference Guide
complete this procedure.
5. Replace the computer access panel.
6. Plug in the computer and turn on power to the computer.
7. Reset the date and time, your passwords, and any special system
setups, using Computer Setup. Refer to the Computer Setup (F10)
Utility Guide.
8. If you normally lock the Smart Cover Lock, use Computer Setup
to relock the lock and enable the Smart Cover Sensor.
Cable Lock
D
Security Provisions
The security locks displayed below and on the following page can be
used to secure the computer.
Installing a Cable Lock
Hardware Reference Guide www.hp.com D–1
Security Provisions
Padlock
I
Installing a Padlock
D–2 www.hp.com Hardware Reference Guide
Universal Chassis Clamp Lock
Without Security Cable
1. Thread the keyboard and mouse cables through the lock.
Security Provisions
Hardware Reference Guide www.hp.com D–3
Security Provisions
2. Screw the lock to the chassis using the screw provided.
3. Insert the plug into the lock 1 and push the button in 2 to engage
the lock. Use the key provided to disengage the lock.
D–4 www.hp.com Hardware Reference Guide
With Security Cable
1. Fasten the security cable by looping it around a stationary object.
Security Provisions
2. Thread the keyboard and mouse cables through the lock.
Hardware Reference Guide www.hp.com D–5
Security Provisions
3. Screw the lock to the chassis using the screw provided.
4. Insert the plug end of the security cable into the lock and push the
button in to engage the lock. Use the key provided to disengage
the lock.
D–6 www.hp.com Hardware Reference Guide
Port Security Bracket
The Port Security Bracket can be used to secure access to cables
connected to the rear panel of the computer.
Installing the Port Security Bracket
1. Attach the bottom section of the bracket to the rear of the
computer:
a. Hook the tabs on the lower edge of the bottom section of the
bracket into the slots on the rear of the computer 1.
b. Insert the tabs on the upper edge of the bottom section of the
bracket into the slots on the rear of the computer. Push in 2
until the bottom section of the bracket locks in place.
Security Provisions
Hardware Reference Guide www.hp.com D–7
Security Provisions
2. Attach all required cables to the rear of the computer.
3. Position the outer portion of the top section of the bracket so that
all cables fit through the slots provided 1, then lower the inner
portion so that the bracket hooks onto the computer 2.
D–8 www.hp.com Hardware Reference Guide
Security Provisions
Installed Port Security Bracket
Hardware Reference Guide www.hp.com D–9
Security Provisions
Removing the Port Security Bracket
CAUTION: Before removing the computer access panel, ensure that the
Ä
computer is turned off and that the power cord is disconnected from the
electrical outlet.
1. If you have locked the Smart Co v er Lock, use Computer Setup to
unlock the lock. Refer to the Desktop Management Guide on the
Documentation Library CD for more information about the Smart
Cover Lock.
2. Loosen the thumbscrew on the rear of the computer 1, slide the
top access panel toward the rear of the computer 2, then lift it
off.
D–10 www.hp.com Hardware Reference Guide
Security Provisions
3. Release the latches inside the computer 1 that secure the top
section of the bracket to the computer and remove the top section
of the bracket 2.
4. Unplug all cables from the rear of the computer.
Hardware Reference Guide www.hp.com D–11
Security Provisions
5. Remove the bottom section of the bracket.
D–12 www.hp.com Hardware Reference Guide
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.
E
■ 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.
Hardware Reference Guide www.hp.com E–1
Electrostatic Discharge
✎
■ 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 a HP-authorized dealer, reseller, or service
provider.
For more information on static electricity, contact a HP-authorized
dealer, reseller, or service provider.
E–2 www.hp.com Hardware Reference Guide
Routine Computer Care and
Routine Computer Care
Follow these suggestions to take care of the computer and monitor:
■ Operate the computer on a sturdy, level surface. Leave a 3-inch
(7.6-cm) clearance at the back of the system unit and above the
monitor to permit the required airflow.
■ Never operate the computer with the cover or side panel
removed.
■ Never restrict the airflow into the computer by blocking the front
vents or air intake. Do not place the keyboard, with the keyboard
feet down, directly against the front of the desktop unit as this
also restricts airflow.
F
Shipping Preparation
■ Keep the computer away from excessive moisture, direct
sunlight, and extremes of heat and cold. For information about
the recommended temperature and humidity ranges for the
computer, refer to Appendix A, “Specifications” in this guide.
■ Keep liquids away from the computer and keyboard.
■ Never cover the ventilation slots on the monitor with any type of
material.
■ 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 the front and back of the
computer. Lint and other foreign matter can block the vents
and limit the airflow.
Hardware Reference Guide www.hp.com F–1
Routine Computer Care and Shipping Preparation
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
Safety
■ 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.
If any object or liquid falls into the drive, immediately unplug the
computer and have it checked by an authorized HP service provider.
F–2 www.hp.com Hardware Reference Guide
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.
The hard drive locks automatically when the system power is
✎
turned off.
2. Remove and store any program diskettes from the diskette drives.
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 .
Routine Computer Care and Shipping Preparation
✎
✎
6. Disconnect the system components and external devices from
their power sources, then from the computer.
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.
For en vironmental nonoperating ranges, see Appendix A,
“Specifications” in this guide.
Hardware Reference Guide www.hp.com F–3
Index
A
access panel
removing 2–6
replacing 2–9
Alt keys 1–4, 1–5
application key
arrow keys
1–4, 1–5
1–4, 1–5
B
backup files 2–16, 2–24
battery replacement
C–1
C
CD-R/RW drive
installing 2–16
locating 2–17
CD-ROM drive
installing 2–16
locating 2–17
components
front panel 1–2
rear panel 1–3
computer
routine care F–1
security lock D–1
shipping preparation F–3
specifications A–1
CTRL keys 1–4, 1–5
D
DIMMs (dual inline memory modules)
installing 2–14, 2–15
diskette drive
activity light 1–2
eject button 1–2
installing 2–16
locating 2–17
drive positions 2–17
DVD-R/RW drive
installing 2–16
locating 2–17
DVD-ROM drive
installing 2–16
locating 2–17
E
Easy Access buttons 1–5
editing keys
electrostatic discharge
expansion card installation
expansion slots
1–4, 1–5
2–1, E–1
2–25
F
FailSafe key 2–2
front bezel
removing 2–7
replacing 2–8
front panel components 1–2
function keys
1–4, 1–5
H
hard drive
activity light 1–2
installation guidelines B–1
2–25
Hardware Reference Guide www.hp.com Index–1
Index
installing 2–16
locating 2–17
headphone jack 1–2
I
installation
drives 2–18, 2–20
expansion card 2–25
memory 2–11
K
keyboard
port 1–3
L
latch drive bracket 2–20
M
memory
identifying 2–15
installing 2–11
microphone connector 1–2
mouse
connector 1–3
N
numeric keys 1–4, 1–5
O
optical drives
activity light 1–2
ATA B–2
defined 2–17
eject button 1–2
installing 2–20
locating 2–17
removing 2–18
P
power
button 1–2
cord 2–5, 2–10
light 1–2
R
rear panel components 1–3
removing
computer access panel 2–5
drives 2–18
expansion card 2–25
front bezel 2–7
Smart Cover lock 2–4
restoring software 2–24
S
security lock provisions D–1
serial number location
Smart Cover
FailSafe key 2–2
lock 2–2
removing 2–4
specifications A–1
status lights
1–4, 1–5
1–7
U
USB 1–2
W
Windows Logo key 1–6
Windows Logo keys
1–4, 1–5
Index–2 www.hp.com Hardware Reference Guide
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