Hardware Reference Guide
HP Business Desktops
dx5150 Microtower model
Document Part Number: 374056-002
February 2005
This guide provides basic information for upgrading this computer
model.
© 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
Å
directions could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow
Ä
directions could result in damage to equipment or loss of information.
Hardware Reference Guide
HP Business Desktops
dx5150 Microtower model
First Edition (December 2004)
Second Edition (
Document Part Number: 374056-002
February 2005)
Contents
1 Product Features
Standard Configuration Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Front Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Rear Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Standard Keyboard Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Optional HP Modular Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Special Mouse Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
2 Hardware Upgrades
Serviceability Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Removing the Computer Access Panel and Front Bezel. . . . . . . . . . . . . . . . . . . . . . . . 2–2
Installing Additional Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
DDR-SDRAM DIMMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
DIMM Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Installing DDR-SDRAM DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Removing or Installing an Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Removing an Expansion Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Replacing or Upgrading a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
Locating Drive Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
Removing a Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Replacing a Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Reassembling the Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–26
Hardware Reference Guide www.hp.com iii
Contents
A Specifications
B Battery Replacement
C Security Lock Provisions
Installing a Security Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–1
D Electrostatic Discharge
Preventing Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
Grounding Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
E Computer Operating Guidelines, Routine Care and
Shipping Preparation
Computer Operating Guidelines and Routine Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
Optical Drive Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–2
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–3
Shipping Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–3
Index
iv www.hp.com Hardware Reference Guide
Product Features
Standard Configuration Features
The HP dx5150 Microtower features may vary depending on the
model. For a complete listing of the hardware and software installed
in the computer, run the Diagnostics for Windows utility. Instructions
for using this utility are provided in the Troubleshooting Guide on the
Documentation CD.
1
dx5150 Microtower Configuration
Hardware Reference Guide www.hp.com 1–1
Product Features
Front Panel Components
Drive configuration may vary by model.
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 (optional) - Hard Drive Activity Light
5 Diskette Eject Button (optional) 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
Rear Panel Components
Product Features
1 Power Cord Connector 8
2 Voltage Select Switch 9
3
4
5
6
7
✎
PS/2 Mouse Connector -
b
PS/2 Keyboard Connector q
a
Universal Serial Bus (USB) w
o
m
Serial Connector =
RJ-45 Network Connector
n
Arrangement and number of connectors may vary by model.
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 F10 setup to use both connectors. For
more information about Boot Order, refer to the Computer Setup (F10) Utility Guide on the
Documentation CD.
The DVI–D connector will only work with flat panel displays.
Parallel Connector
l
Monitor Connector
c
Headphone/Line-Out Connector
Y
Line-In Audio Connector
j
Microphone Connector
g
Digital Video Interface (DVI–D)
c
Monitor Connector
Hardware Reference Guide www.hp.com 1–3
Product Features
Standard Keyboard Components
1 Function Keys Perform special functions, depending on the software application
being used.
2 Editing Keys Include the following: Insert, Home, Page Up, Delete, End, and Page
Down.
3 Status Lights Indicate the status of the computer and keyboard settings (Num Lock,
Caps Lock, 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 other keys; 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 other keys; its effect depends on the
*Keys available in select geographic regions.
1–4 www.hp.com Hardware Reference Guide
Used to open the Start menu in Microsoft Windows. Used in
combination with other keys to perform other functions.
application software you are using.
Optional HP Modular Keyboard
If the computer kit includes an HP Modular Keyboard, refer to the HP
Modular Keyboard User Guide on the Documentation CD for
component identification and setup information.
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 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 1–5
Product Features
1–6 www.hp.com Hardware Reference Guide
Serviceability Features
This 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
Å
and/or hot surfaces, be sure to disconnect the power cord from the wall
outlet and allow the internal system components to cool before touching.
WARNING: To reduce the risk of electrical shock, fire, or damage to
Å
the equipment, do not plug telecommunications/telephone connectors
into the network interface controller (NIC) receptacles.
2
Hardware Upgrades
CAUTION: Static electricity can damage the electrical components of
Ä
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, “Electrostatic Discharge” for
more information.
CAUTION: Before removing the computer cover, ensure that the
Ä
computer is turned off and that the power cord is disconnected from the
electrical outlet.
Hardware Reference Guide www.hp.com 2–1
Hardware Upgrades
Removing the Computer Access Panel and Front Bezel
To remove the computer access panel:
1. Turn off the computer properly through the operating system and
turn off any external devices.
2. Disconnect the power cord from the power outlet 1 and the
computer 2, and disconnect any external devices.
Disconnecting the Power Cable
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.
2–2 www.hp.com Hardware Reference Guide
Hardware Upgrades
3. Loosen the thumbscrew on the rear of the computer 1, slide the
access panel toward the rear of the computer 2, then lift it off.
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
Hardware Reference Guide www.hp.com 2–3
Hardware Upgrades
4. 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
To reassemble the computer, reverse the above procedure.
Press down while replacing the access panel. Refer to the label on the
✎
inside of the access panel for more information.
To re-install the front bezel, insert the two bezel hooks on the right,
✎
then rotate the front bezel forward to snap the three tabs on the left of
the bezel in place.
2–4 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 up to
four industry-standard DIMMs. These memory sockets are populated
with at least one preinstalled DIMM. To achieve the maximum
memory support, you can populate the system board with up to 8GB
(1-Gbit Technology) of memory configured in a high-performing
dual channel mode.
The memory available may be limited by the operating system.
✎
DDR-SDRAM DIMMs
For proper system operation, if the computer supports DDR-SDRAM
DIMMs, the DIMMs must be:
Hardware Upgrades
■ industry-standard 184-pin
■ unbuffered PC3200 400 MHz-compliant
■ 2.5 volt DDR-SDRAM DIMMs.
The DDR-SDRAM DIMMs must also:
■ support CAS latency 3 (CL = 3)
■ contain the mandatory JEDEC SPD information
In addition, the computer supports:
■ 128Mbit, 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
The system will not start if you install unsupported DIMMs.
✎
Hardware Reference Guide www.hp.com 2–5
Hardware Upgrades
DIMM Sockets
✎
The system will automatically operate in single channel mode or a
higher-performing dual channel mode, depending on how the DIMMs
are installed.
■ In single channel mode, always populate the XMM1 socket first.
If you add a second DIMM of a different memory size than the
first, install it in XMM3. Otherwise, the system will not operate.
In single channel mode, the maximum operational speed is
determined by the slowest DIMM in the system. If the system is
populated with a DIMM that is 266 MHz and a second DIMM that is
333 MHz, the system will run at the slower of the two speeds.
■ In dual channel mode, all DIMMs must be identically matched. If
you are populating only two DIMM sockets, you must use
identical DIMMs and populate them in XMM1 and XMM2, the
black sockets. If you are populating all four DIMM sockets, you
must either use identical DIMMs in all sockets or use identical
DIMM pairs in each pair of sockets, XMM1 and XMM2 black
sockets and XMM3 and XMM4 blue sockets. Otherwise, the
system may not operate properly.
2–6 www.hp.com Hardware Reference Guide
Hardware Upgrades
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 XMM3 operate in memory channel A.
Sockets XMM2 and XMM4 operate in memory channel B.
DIMM Socket Locations
Item Description Socket Color
1 DIMM socket XMM1, Channel A Black
2 DIMM socket XMM2, Channel B Black
3 DIMM socket XMM3, Channel A Blue
4 DIMM socket XMM4, Channel B Blue
Hardware Reference Guide www.hp.com 2–7
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