HP Pro 4300 User Manual

Maintenance and Service Guide

HP Compaq Pro 4300 Small Form Factor
Business PC

© Copyright 2012 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.

HP Compaq Pro 4300 Small Form Factor
Business PC

First Edition (July 2012)

Document Part Number: 701466-001

About This Book

WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily

harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in

damage to equipment or loss of information.

NOTE: Text set off in this manner provides important supplemental information.

iii

iv About This Book

Table of contents

1 Product Features ............................................................................................................................................ 1

Standard Configuration Features ......................................................................................................... 1

Front Panel Components ..................................................................................................................... 2

Rear Panel Components ...................................................................................................................... 3

Serial Number Location ........................................................................................................................ 4

2 Installing and Customizing the Software ...................................................................................................... 5

Installing the Windows Operating System ............................................................................................ 5

Downloading Microsoft Windows Updates ........................................................................................... 5

Installing or Upgrading Device Drivers (Windows systems) ................................................................. 6

Customizing the Monitor Display (Windows systems) .......................................................................... 6

Launching Windows XP from Windows 7 ............................................................................................. 6

Accessing Disk Image (ISO) Files ........................................................................................................ 7

3 Computer Setup (F10) Utility ......................................................................................................................... 8

Computer Setup (F10) Utilities ............................................................................................................. 8

Using Computer Setup (F10) Utilities .................................................................................. 9

Computer Setup—File ....................................................................................................... 10

Computer Setup—Storage ................................................................................................ 11

Computer Setup—Security ................................................................................................ 12

Computer Setup—Power ................................................................................................... 14

Computer Setup—Advanced ............................................................................................. 15

4 Serial ATA (SATA) Drive Guidelines and Features .................................................................................... 17

SATA Hard Drives .............................................................................................................................. 17

SATA Hard Drive Cables .................................................................................................................... 17

SATA Data Cable .............................................................................................................. 17

SMART ATA Drives ............................................................................................................................ 18

Hard Drive Capacities ........................................................................................................................ 18

v

5 Identifying the Chassis, Routine Care, and Disassembly Preparation .................................................... 19

Chassis Designations ......................................................................................................................... 19

Small Form Factor (SFF) ................................................................................................... 19

Electrostatic Discharge Information .................................................................................................... 20

Generating Static ............................................................................................................... 20

Preventing Electrostatic Damage to Equipment ................................................................ 20

Personal Grounding Methods and Equipment ................................................................... 21

Grounding the Work Area .................................................................................................. 21

Recommended Materials and Equipment .......................................................................... 21

Operating Guidelines .......................................................................................................................... 22

Routine Care ...................................................................................................................................... 23

General Cleaning Safety Precautions ................................................................................ 23

Cleaning the Computer Case ............................................................................................ 23

Cleaning the Keyboard ...................................................................................................... 23

Cleaning the Monitor .......................................................................................................... 24

Cleaning the Mouse ........................................................................................................... 24

Service Considerations ...................................................................................................................... 24

Power Supply Fan ............................................................................................................. 24

Tools and Software Requirements .................................................................................... 25

Screws ............................................................................................................................... 25

Cables and Connectors ..................................................................................................... 25

Hard Drives ........................................................................................................................ 25

Lithium Coin Cell Battery ................................................................................................... 26

6 Illustrated parts catalog ............................................................................................................................... 27

Spare parts ......................................................................................................................................... 27

Computer major components ............................................................................................ 27

Sequential part number listing ........................................................................................... 30

7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis ............................................ 37

Serial Number Location ...................................................................................................................... 37

Preparation for Disassembly .............................................................................................................. 37

Computer Access Panel ..................................................................................................................... 39

Front Bezel ......................................................................................................................................... 40

Bezel Blanks ....................................................................................................................................... 41

System Board Connections ................................................................................................................ 42

Installing Additional Memory .............................................................................................................. 43

DIMMs ............................................................................................................................... 43

DDR3-SDRAM DIMMs ...................................................................................................... 43

Populating DIMM Sockets ................................................................................................. 44

vi

Installing DIMMs ................................................................................................................ 44

Removing or Installing an Expansion Card ........................................................................................ 46

Cable Management ............................................................................................................................ 53

Drives ................................................................................................................................................. 54

Drive Positions ................................................................................................................... 55

Installing and Removing Drives ......................................................................................... 55

Removing an Internal 5.25-inch Drive ............................................................... 57

Installing an Optical Drive into the 5.25-inch Drive Bay .................................... 59

Removing an Internal 3.5-inch Drive ................................................................. 61

Installing a Drive into the 3.5-inch Internal Drive Bay ....................................... 63

Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive ....... 66

Baffle .................................................................................................................................................. 69

Front Fan Assembly ........................................................................................................................... 70

Front I/O, Power Switch Assembly ..................................................................................................... 71

Speaker .............................................................................................................................................. 72

Heat sink ............................................................................................................................................ 73

Processor ........................................................................................................................................... 76

Power Supply ..................................................................................................................................... 78

System Board ..................................................................................................................................... 80

Battery ................................................................................................................................................ 82

Type 1 Battery Holder ........................................................................................................ 83

Type 2 Battery Holder ........................................................................................................ 83

Type 3 Battery Holder ........................................................................................................ 84

Using the Small Form Factor Computer in a Tower Orientation ........................................................ 85

Installing a Security Lock .................................................................................................................... 86

HP/Kensington MicroSaver Security Cable Lock ............................................................... 86

Padlock .............................................................................................................................. 87

Front Bezel Security .......................................................................................................... 88

Appendix A Power Cord Set Requirements .................................................................................................. 90

General Requirements ....................................................................................................................... 90

Japanese Power Cord Requirements ................................................................................................ 90

Country-Specific Requirements .......................................................................................................... 91

Appendix B POST Error Messages ................................................................................................................ 92

POST Numeric Codes and Text Messages ....................................................................................... 93

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ................................................ 94

Appendix C Troubleshooting Without Diagnostics ...................................................................................... 96

Safety and Comfort ............................................................................................................................ 96

vii

Before You Call for Technical Support ............................................................................................... 96

Helpful Hints ....................................................................................................................................... 97

Solving General Problems .................................................................................................................. 99

Solving Power Problems .................................................................................................................. 103

Solving Hard Drive Problems ........................................................................................................... 105

Solving Media Card Reader Problems ............................................................................................. 108

Solving Display Problems ................................................................................................................. 110

Solving Audio Problems ................................................................................................................... 115

Solving Printer Problems .................................................................................................................. 117

Solving Keyboard and Mouse Problems .......................................................................................... 119

Solving Hardware Installation Problems ........................................................................................... 121

Solving Network Problems ............................................................................................................... 123

Solving Memory Problems ............................................................................................................... 126

Solving Processor Problems ............................................................................................................ 128

Solving CD-ROM and DVD Problems .............................................................................................. 129

Solving USB Flash Drive Problems .................................................................................................. 131

Solving Front Panel Component Problems ...................................................................................... 132

Solving Internet Access Problems .................................................................................................... 133

Solving Software Problems .............................................................................................................. 136

Appendix D Password Security and Resetting CMOS ............................................................................... 137

Resetting the Password Jumper ...................................................................................................... 138

Clearing and Resetting the CMOS ................................................................................................... 139

Appendix E Drive Protection System (DPS) ................................................................................................ 141

Accessing DPS Through Computer Setup ....................................................................................... 142

Appendix F System Recovery ...................................................................................................................... 143

System Recovery options ................................................................................................................. 144

System Recovery from the Windows 7 Start Menu ......................................................... 144

System Recovery at system startup ................................................................................ 144

System Recovery from recovery media ........................................................................... 145

Recovery media ............................................................................................................................... 146

Choosing recovery media ................................................................................................ 146

Creating recovery media .................................................................................................. 146

Appendix G Specifications ........................................................................................................................... 148

Index ................................................................................................................................................................. 150

viii

1 Product Features

Standard Configuration Features

The HP Compaq Small Form Factor 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).

NOTE: The Small Form Factor computer can also be used in a tower orientation. For more

information, see
guide.

Figure 1-1 Small Form Factor Configuration

Using the Small Form Factor Computer in a Tower Orientation on page 85 in this

Standard Configuration Features 1

Front Panel Components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive
bays.

Figure 1-2 Front Panel Components

Table 1-1 Front Panel Components

1 5.25-inch Optical Drive 6 USB (Universal Serial Bus) Ports

2 Optical Drive Activity Light 7 Microphone Connector

3 Optical Drive Eject Button 8 3.5-inch Media Card Reader (optional)

4 Dual-State Power Button 9 Hard Drive Activity Light

5 Power On Light 10 Headphone Connector

NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with

the computer and it is displaying a diagnostic code.

2 Chapter 1 Product Features

Rear Panel Components

Figure 1-3 Rear Panel Components

Table 1-2 Rear Panel Components

1 RJ-45 Network Connector 6 DVI-D Connector

2

3

4 Power Cord Connector 9

5

NOTE: An optional second serial port and an optional parallel port are available from HP.

The monitor connectors on the system board are inactive when a graphics card is installed in the computer.

If a graphics card is installed into one of the system board slots, the connectors on the graphics 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.

VGA Monitor Connector 7 PS/2 Mouse Connector (green)

Serial Connector 8 PS/2 Keyboard Connector (purple)

Line-Out Connector for powered audio
devices (green)

Universal Serial Bus (USB) 10 Line-In Audio Connector (blue)

Rear Panel Components 3

Serial Number Location

Each computer has a unique serial number and product ID number in the location shown below. Keep
these numbers available for use when contacting customer service for assistance.

Figure 1-4 Serial Number and Product ID Location

4 Chapter 1 Product Features

2 Installing and Customizing the

Software

If your computer was not shipped with a Microsoft operating system, some portions of this
documentation do not apply. Additional information is available in online help after you install the
operating system.

NOTE: If the computer was shipped with Windows Vista or Windows 7 loaded, you will be prompted

to register the computer with HP Total Care before installing the operating system. You will see a
brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow
the instructions on the screen.

CAUTION: Do not add optional hardware or third-party devices to the computer until the operating

system is successfully installed. Doing so may cause errors and prevent the operating system from
installing properly.

NOTE: Be sure there is a 10.2-cm (4-inch) clearance at the back of the unit and above the monitor

to permit the required airflow.

Installing the Windows Operating System

The first time you turn on the computer, the operating system is installed automatically. This process
takes about 5 to 10 minutes, depending on which operating system is being installed. Carefully read
and follow the instructions on the screen to complete the installation.

CAUTION: Once the automatic installation has begun, DO NOT TURN OFF THE COMPUTER

UNTIL THE PROCESS IS COMPLETE. Turning off the computer during the installation process may
damage the software that runs the computer or prevent its proper installation.

NOTE: If the computer shipped with more than one operating system language on the hard drive,

the installation process could take up to 60 minutes.

If your computer was not shipped with a Microsoft operating system, some portions of this
documentation do not apply. Additional information is available in online help after you install the
operating system.

Downloading Microsoft Windows Updates

1. To set up your Internet connection, click Start > Internet Explorer and follow the instructions on

the screen.

2. Once an Internet connection has been established, click the Start button.

Installing the Windows Operating System 5

3. Select the All Programs menu.

4. Click on the Windows Update link.

In Windows Vista and Windows 7, the Windows Update screen appears. Click view available
updates and make sure all critical updates are selected. Click the Install button and follow the

instructions on the screen.

In Windows XP, you will be directed to the Microsoft Windows Update Web site. If you see
one or more pop-up windows that ask you to install a program from
click Yes to install the program. Follow the instructions on the Microsoft Web site to scan for
updates and install critical updates and service packs.

It is recommended that you install all of the critical updates and service packs.

5. After the updates have been installed, Windows will prompt you to reboot the machine. Be sure

to save any files or documents that you may have open before rebooting. Then select Yes to
reboot the machine.

http://www.microsoft.com,

Installing or Upgrading Device Drivers (Windows systems)

When installing optional hardware devices after the operating system installation is complete, you
must also install the drivers for each of the devices.

If prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse
button in the dialog box to locate the i386 folder. This action points the operating system to the
appropriate drivers.

Obtain the latest support software, including support software for the operating system from

http://www.hp.com/support. Select your country and language, select Download drivers and

software (and firmware), enter the model number of the computer, and press Enter.

Customizing the Monitor Display (Windows systems)

If you wish, you can select or change the monitor model, refresh rates, screen resolution, color
settings, font sizes, and power management settings. To do so, right-click on the Windows Desktop,
then click Personalize in Windows Vista and Windows 7 or Properties in Windows XP to change
display settings. For more information, refer to the online documentation provided with the graphics
controller utility or the documentation that came with your monitor.

Launching Windows XP from Windows 7

Windows XP Mode for Windows 7 allows you to install and launch Windows XP applications from the
Windows 7 taskbar. This feature is available on some computer models only.

To set up from a pre-installed Windows 7 desktop, click Start > Windows Virtual PC > Virtual
Windows XP and follow the instructions on the screen.

6 Chapter 2 Installing and Customizing the Software

Accessing Disk Image (ISO) Files

There are disk image files (ISO files) included on your PC that contain the installation software for
additional software. These CD image files are located in the folder C:\SWSetup\ISOs. Each .iso file
can be burned to CD media to create an installation CD. It is recommended that these disks be
created and the software installed in order to get the most from your PC. The software and image file
names are:

Corel WinDVD SD and BD – installation software for WinDVD – used to play DVD movies

●

HP Insight Diagnostics OR Vision Diagnostics – software to perform diagnostic activities on your

●

PC

Accessing Disk Image (ISO) Files 7

3 Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Use Computer Setup (F10) Utility to do the following:

Change factory default settings.

●

Set the system date and time.

●

● Set, view, change, or verify the system configuration, including settings for processor, graphics,

memory, audio, storage, communications, and input devices.

Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash

●

media devices.

Select Post Messages Enabled or Disabled to change the display status of Power-On Self-Test

●

(POST) messages. Post Messages Disabled suppresses most POST messages, such as
memory count, product name, and other non-error text messages. If a POST error occurs, the
error is displayed regardless of the mode selected. To manually switch to Post Messages
Enabled during POST, press any key (except F1 through F12).

Establish an Ownership Tag, the text of which is displayed each time the system is turned on or

●

restarted.

Enter the Asset Tag or property identification number assigned by the company to this computer.

●

Enable the power-on password prompt during system restarts (warm boots) as well as during

●

power-on.

Establish a setup password that controls access to the Computer Setup (F10) Utility and the

●

settings described in this section.

● Secure integrated I/O functionality, including USB, audio, or embedded NIC, so that they cannot

be used until they are unsecured.

● Solve system configuration errors detected but not automatically fixed during the Power-On Self-

Test (POST).

Replicate the system setup by saving system configuration information on a USB flash drive and

●

restoring it on one or more computers.

Execute self-tests on a specified ATA hard drive (when supported by drive).

●

8 Chapter 3 Computer Setup (F10) Utility

Using Computer Setup (F10) Utilities

Computer Setup can be accessed only by turning the computer on or restarting the system.
To access the Computer Setup Utilities menu, complete the following steps:

1. Turn on or restart the computer.

2. Press Esc while the “Press the ESC key for Startup Menu” message is displayed at the bottom

of the screen.

NOTE: If you do not press Esc at the appropriate time, you must restart the computer and

again press Esc when the monitor light turns green to access the utility.

3. Press F10 to enter Computer Setup.

4. A choice of five headings appears in the Computer Setup Utilities menu: File, Storage, Security,

Power, and Advanced.

5. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and

down) keys to select the option you want, then press Enter. To return to the Computer Setup
Utilities menu, press Esc.

6. To apply and save changes, select File > Save Changes and Exit.

If you have made changes that you do not want applied, select Ignore Changes and Exit.

●

To reset to factory settings, select Apply Defaults and Exit. This option will restore the

●

original factory system defaults.

CAUTION: Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup

(F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only
after exiting the F10 Setup screen.

Computer Setup (F10) Utilities 9

Computer Setup—File

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table 3-1 Computer Setup—File

Option Description

System Information Lists:

About Displays copyright notice.

Product name

●

SKU number (some models)

●

● Processor type/speed/stepping

● Cache size (L1/L2/L3)

Installed memory size/speed, number of channels (single or dual) (if applicable)

●

Integrated MAC address for embedded, enabled NIC (if applicable)

●

● System BIOS (includes family name and version)

Chassis serial number

●

Asset tag

●

Set Time and Date Allows you to set system time and date.

Apply Defaults and
Exit

Ignore Changes
and Exit

Save Changes and
Exit

Applies the currently selected default settings and clears any established passwords.

Exits Computer Setup without applying or saving any changes.

Saves changes to system configuration or default settings and exits Computer Setup.

10 Chapter 3 Computer Setup (F10) Utility

Computer Setup—Storage

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table 3-2 Computer Setup—Storage

Option Description

Device Configuration Lists all installed BIOS-controlled storage devices.

When a device is selected, detailed information and options are displayed. The following options
may be presented:

Hard Disk: Size, model, firmware, and serial number.

USB: Model and size.

CD-ROM: Model, firmware, and serial number.

Diskette: Model. Only displays when a USB diskette drive is connected to the computer.

Storage Options SATA Emulation

Allows you to choose how the SATA controller and devices are accessed by the operating
system. There are two supported options: AHCI and IDE.

AHCI (default option) - Allows operating systems with AHCI device drivers loaded to take
advantage of more advanced features of the SATA controller.

IDE - This is the most backwards-compatible setting of the two options. Operating systems usually
do not require additional driver support in IDE mode.

NOTE: The AHCI device driver must be installed prior to attempting to boot from an AHCI

volume. If you attempt to boot from an AHCI volume without the required device driver installed,
the system will crash (blue screen).

DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection

Boot Order Allows you to:

System (DPS) self-tests.

NOTE: This selection will only appear when at least one drive capable of performing the DPS

self-tests is attached to the system.

Specify the order in which UEFI boot sources and legacy boot sources (such as a USB flash

●

media device, hard drive, optical drive, or network interface card) are checked for a bootable
operating system image. Each device on the list may be individually excluded from or
included for consideration as a bootable operating system source.

Specify the order of attached hard drives. The first hard drive in the order will have priority in

●

the boot sequence and will be recognized as drive C (if any devices are attached).

Press F5 to disable a device. Press Enter to select a device. Press the arrow keys to drag a
selected device.

NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating

system has started.

Shortcut to Temporarily Override Boot Order

To boot one time from a device other than the default device specified in Boot Order, restart the
computer and press F9 before the computer boots to the operating system. After POST is
completed, a list of bootable devices is displayed. Use the arrow keys to select the preferred
bootable device and press Enter. The computer then boots from the selected non-default device
for this one time.

Computer Setup (F10) Utilities 11

Computer Setup—Security

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table 3-3 Computer Setup—Security

Option Description

Setup Password Allows you to set and enable a setup (administrator) password.

NOTE: If the setup password is set, it is required to change Computer Setup options, flash the

ROM, and make changes to certain plug and play settings under Windows.

Power-On Password Allows you to set and enable a power-on password. The power-on password prompt appears

Device Security Allows you to set Device Available/Device Hidden for:

USB Security Allows you to enable or disable groups of USB ports or individual USB ports. Default is device

after a power cycle or reboot. If the user does not enter the correct power-on password, the unit
will not boot.

System Audio

●

Network Controller (some models)

●

● SATA0

SATA1

●

available.

● Front USB Ports

USB Port 0

◦

USB Port 1

◦

◦ USB Port 4

◦ USB Port 5

Rear USB Ports

●

USB Port 8

◦

◦ USB Port 9

USB Port 10

◦

USB Port 11

◦

● internal USB Ports

USB Port 2

◦

USB Port 3

◦

Slot Security Allows you to disable or enable the PCI or PCI Express slot. Default is enable.

Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network

server. (Feature available on NIC models only; the network controller must be either a PCI
Express expansion card or embedded on the system board.) Default is enable.

12 Chapter 3 Computer Setup (F10) Utility

Table 3-3 Computer Setup—Security (continued)

System IDs Displays the following:

● Product name

Serial number

●

Universal Unique Identifier (UUID) number. The UUID can only be updated if the current

●

chassis serial number is invalid. (These ID numbers are normally set in the factory and are
used to uniquely identify the system.)

SKU number

●

● Family name

Asset tag (18-byte identifier). A property identification number assigned by the company to

●

the computer.

● Feature byte

Build ID

●

Keyboard locale setting (for example, English or German)

●

System Security

(some models: these
options are hardware
dependent)

Data Execution Prevention (some models) (enable/disable) - Helps prevent operating system
security breaches. Default is enabled.

Virtualization Technology (VTx/VTd) (some models) (enable/disable) - Controls the virtualization
features of the processor and virtualization DMA remapping features of the chipset. Changing this
setting requires turning the computer off and then back on. Default is disabled.

Computer Setup (F10) Utilities 13

Computer Setup—Power

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table 3-4 Computer Setup—Power

Option Description

Hardware Power
Management

Thermal Displays the system fan speed (RPMs).

● SATA Power Management—Enables or disables the SATA bus and/or device power

management. Default is enabled.

S4/S5 Wake On LAN—Wake on LAN (WOL) is normally used to turn on and shutdown

●

systems remotely. This option wakes the system from S4 (hibernate)/S5 (off) power state
when a Wake on LAN packet is received and follows normal boot order. Default is disabled.

14 Chapter 3 Computer Setup (F10) Utility

Computer Setup—Advanced

NOTE: Support for specific Computer Setup options may vary depending on the hardware

configuration.

Table 3-5 Computer Setup—Advanced

Option Heading

Power-On Options Allows you to set:

● POST messages (enable/disable). Suppresses most POST messages, such as memory

count, product name, and other non-error text messages. If a POST error occurs, the error is
displayed regardless of the mode selected.

● After Power Loss (off/on/previous state): Setting this option to:

Off—causes the computer to remain powered off when power is restored.

◦

On—causes the computer to power on automatically as soon as power is restored.

◦

◦ Previous state—causes the computer to power on automatically as soon as power is

restored, if it was on when power was lost.

NOTE: If you turn off power to the computer using the switch on a power strip, you will not be

able to use the suspend/sleep feature or the Remote Management features.

● POST Delay (None, 5, 10 15, 20, or 60 seconds). Enabling this feature will add a user-

specified delay to the POST process. This delay is sometimes needed for hard disks on
some PCI cards that spin up very slowly, so slowly that they are not ready to boot by the time
POST is finished. The POST delay also gives you more time to select F10 to enter Computer
(F10) Setup.

BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify.

Onboard Devices Allows you to set resources for or disable Legacy devices.

Computer Setup (F10) Utilities 15

Table 3-5 Computer Setup—Advanced (continued)

Bus Options On some models, allows you to enable or disable:

● PCI SERR# Generation. Default is enable.

PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration

●

space; only needed when more than one graphics controller is installed. Default is disable.

Device Options Allows you to set:

Num Lock State at Power-On (off/on). Default is on.

●

Parallel Port Mode (EPP+ECP, Output-only, Bi-directional).

●

● Multi-Processor (enable/disable). Use this option to disable multi-processor support under

the OS. Default is enabled.

Hyper-threading (Enable/disable). Provides processor parallelization such that the operating

●

system treats one processor as two. Default is enable.

NIC Option ROM Download (enable/disable). The BIOS contains an embedded NIC option

●

ROM to allow the unit to boot through the network to a PXE server. This is typically used to
download a corporate image to a hard drive. The NIC option ROM takes up memory space
below 1 MB commonly referred to as DOS Compatibility Hole (DCH) space. This space is
limited. This F10 option will allow users to disable the downloading of this embedded NIC
option ROM thus giving more DCH space for additional PCI cards which may need option
ROM space. Default is-enable.

Processor Frequency Multiplier. Accessible using CTRL+A. The frequency multiplier adapts

●

the external frequency of the computer to the internal frequency of the processor. This
setting lets you overclock your computer.

16 Chapter 3 Computer Setup (F10) Utility

4 Serial ATA (SATA) Drive Guidelines

and Features

NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel

ATA (PATA) drives are supported.

SATA Hard Drives

Serial ATA Hard Drive Characteristics

Number of pins/conductors in data cable 7/7

Number of pins in power cable 15

Maximum data cable length 39.37 in (100 cm)

Data interface voltage differential 400-700 mV

Drive voltages 3.3 V, 5 V, 12 V

Jumpers for configuring drive N/A

Data transfer rate 3.0 Gb/s

SATA Hard Drive Cables

SATA Data Cable

Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA

1.5 Gb/s drives.

Current HP desktop products ship with SATA 3.0 Gb/s hard drives.

SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and
never bend it tighter than a 30 mm (1.18 in) radius.

The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.

SATA Hard Drives 17

SMART ATA Drives

The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal
Computers have built-in drive failure prediction that warns the user or network administrator of an
impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure
indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If
the drive determines that a failure is imminent, it generates a fault alert.

Hard Drive Capacities

The combination of the file system and the operating system used in the computer determines the
maximum usable size of a drive partition. A drive partition is the largest segment of a drive that may
be properly accessed by the operating system. A single hard drive may therefore be subdivided into a
number of unique drive partitions in order to make use of all of its space.

Because of the differences in the way that drive sizes are calculated, the size reported by the
operating system may differ from that marked on the hard drive or listed in the computer specification.
Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by
Microsoft are bytes to the base 2.

Maximum Size

File System Controller Type Operating System Partition Drive

Drive/Partition Capacity Limits

FAT 32 ATA Windows XP/Windows Vista/Windows 7 32 GB 2 TB

NTFS ATA Windows XP/Windows Vista/Windows 7 2 TB 2 TB

18 Chapter 4 Serial ATA (SATA) Drive Guidelines and Features

5 Identifying the Chassis, Routine Care,

and Disassembly Preparation

This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.

CAUTION: 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 system board or component damage.

Chassis Designations

Small Form Factor (SFF)

Figure 5-1 Small Form Factor chassis

Chassis Designations 19

Electrostatic Discharge Information

A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive
devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic
device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work
perfectly throughout a normal cycle. The device may function normally for a while, but it has been
degraded in the internal layers, reducing its life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases, the
discharge contains enough power to alter device parameters or melt silicon junctions.

Generating Static

The following table shows that:

Different activities generate different amounts of static electricity.

●

● Static electricity increases as humidity decreases.

Relative Humidity

Event 55% 40% 10%

Walking across carpet

Walking across vinyl floor

Motions of bench worker

Removing DIPs from plastic tube

Removing DIPs from vinyl tray

Removing DIPs from Styrofoam

Removing bubble pack from PCB

Packing PCBs in foam-lined box

These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

7,500 V

3,000 V

400 V

400 V

2,000 V

3,500 V

7,000 V

5,000 V

NOTE: 700 volts can degrade a product.

Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the
degree of sensitivity. The following packaging and grounding precautions are necessary to prevent
damage to electric components and accessories.

15,000 V

5,000 V

800 V

700 V

4,000 V

5,000 V

20,000 V

11,000 V

35,000 V

12,000 V

6,000 V

2,000 V

11,500 V

14,500 V

26,500 V

21,000 V

To avoid hand contact, transport products in static-safe containers such as tubes, bags, or

●

boxes.

Protect all electrostatic parts and assemblies with conductive or approved containers or

●

packaging.

Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.

●

Place items on a grounded surface before removing them from their container.

●

20 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

Always be properly grounded when touching a sensitive component or assembly.

●

Avoid contact with pins, leads, or circuitry.

●

Place reusable electrostatic-sensitive parts from assemblies in protective packaging or

●

conductive foam.

Personal Grounding Methods and Equipment

Use the following equipment to prevent static electricity damage to equipment:

Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground

●

cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord
must be connected and fit snugly into the banana plug connector on the grounding mat or
workstation.

● Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible

with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on
both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

Grounding the Work Area

To prevent static damage at the work area, use the following precautions:

Cover the work surface with approved static-dissipative material. Provide a wrist strap connected

●

to the work surface and properly grounded tools and equipment.

Use static-dissipative mats, foot straps, or air ionizers to give added protection.

●

Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate.

●

Handle them only at static-free work areas.

Turn off power and input signals before inserting and removing connectors or test equipment.

●

Use fixtures made of static-safe materials when fixtures must directly contact dissipative

●

surfaces.

Keep work area free of nonconductive materials such as ordinary plastic assembly aids and

●

Styrofoam.

Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

●

1,500

7,500

15,000

Recommended Materials and Equipment

Materials and equipment that are recommended for use in preventing static electricity include:

Antistatic tape

●

Antistatic smocks, aprons, or sleeve protectors

●

Electrostatic Discharge Information 21

Conductive bins and other assembly or soldering aids

●

Conductive foam

●

Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance

●

Static-dissipative table or floor mats with hard tie to ground

●

Field service kits

●

Static awareness labels

●

Wrist straps and footwear straps providing one-megohm +/- 10% resistance

●

Material handling packages

●

Conductive plastic bags

●

Conductive plastic tubes

●

Conductive tote boxes

●

Opaque shielding bags

●

Transparent metallized shielding bags

●

Transparent shielding tubes

●

Operating Guidelines

To prevent overheating and to help prolong the life of the computer:

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.

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. Be sure to unplug the computer before cleaning
the air vents.

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.

●

22 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

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.

Routine Care

General Cleaning Safety Precautions

1. Never use solvents or flammable solutions to clean the computer.

2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and

then use the cloth on the component.

3. Always unplug the computer when cleaning with liquids or damp cloths.

4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.

5. Disconnect the keyboard before cleaning it.

6. Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the Computer Case

Follow all safety precautions in General Cleaning Safety Precautions on page 23 before cleaning the
computer.

To clean the computer case, follow the procedures described below:

● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.

● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with

a cloth or swab dampened with clear water.

● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will

evaporate quickly and not leave a residue.

After cleaning, always wipe the unit with a clean, lint-free cloth.

●

● Occasionally clean the air vents on the computer. Lint and other foreign matter can block the

vents and limit the airflow.

Cleaning the Keyboard

Follow all safety precautions in General Cleaning Safety Precautions on page 23 before cleaning the
keyboard.

To clean the tops of the keys or the keyboard body, follow the procedures described in

Computer Case on page 23.

When cleaning debris from under the keys, review all rules in

on page 23 before following these procedures:

Cleaning the

General Cleaning Safety Precautions

Routine Care 23

CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from

under the keys.

Visible debris underneath or between the keys may be removed by vacuuming or shaking.

●

Canned, pressurized air may be used to clean debris from under the keys. Caution should be

●

used as too much air pressure can dislodge lubricants applied under the wide keys.

If you remove a key, use a specially designed key puller to prevent damage to the keys. This

●

tool is available through many electronic supply outlets.

CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these

keys are improperly removed or installed, the keyboard may not function properly.

Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed

●

out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to
remove any fibers or dirt in confined areas. Allow the parts to air dry before reassembly.

Cleaning the Monitor

Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for

●

cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into
the housing and damage a component. Never use solvents or flammable liquids on the monitor.

To clean the monitor body follow the procedures in

●

Cleaning the Mouse

Before cleaning the mouse, ensure that the power to the computer is turned off.

Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out

●

any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.

To clean the mouse body, follow the procedures in

●

Service Considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.

Power Supply Fan

The power supply fan is a variable-speed fan based on the temperature in the power supply.

CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is

off when the computer is in “Standby,” “Suspend,” or “Off” modes.

You must disconnect the power cord from the power source before opening the computer to prevent
system board or component damage.

Cleaning the Computer Case on page 23.

Cleaning the Computer Case on page 23.

24 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

Tools and Software Requirements

To service the computer, you need the following:

● Torx T-15 screwdriver (HP screwdriver with bits, PN 161946-001)

Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)

●

Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)

●

Phillips #2 screwdriver

●

Diagnostics software

●

● HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper-

resistant bits (Smart Cover FailSafe Key, PN 166527-002)

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads
and may be of different lengths. If an incorrect screw is used during the reassembly process, it can
damage the unit. HP strongly recommends that all screws removed during disassembly be kept with
the part that was removed, then returned to their proper locations.

CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard

drives only.

CAUTION: As each subassembly is removed from the computer, it should be placed away from the

work area to prevent damage.

Cables and Connectors

Most cables used throughout the unit are flat, flexible cables. These cables must be handled with
care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or
removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid
bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot
be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this computer, ensure that cables are placed in their proper location

during the reassembly process. Improper cable placement can damage the computer.

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This
applies to failed drives as well as replacement spares.

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.”

Do not remove hard drives from the shipping package for storage. Keep hard drives in their

●

protective packaging until they are actually mounted in the CPU.

Avoid dropping drives from any height onto any surface.

●

If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive

●

while the computer is on or in standby mode.

Service Considerations 25

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

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.

Electrostatic Discharge Information on page 20

Lithium Coin Cell Battery

The battery that comes with the computer provides power to the real-time clock and has a minimum
lifetime of about three years.

See the appropriate removal and replacement chapter for the chassis you are working on in this
guide for instructions on the replacement procedures.

WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the

battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose
in water or fire, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the
battery.

NOTE: 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.

26 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation

6 Illustrated parts catalog

This chapter provides parts information for the chassis.

Spare parts

Computer major components

Spare parts 27

Item Description Spare part number

(1) Access panel 636924-001

(2) Front bezel 636920-001

(3) Power supply

240W, 85% efficiency 613663-001

240W, high voltage protection 613664-001

240W 613763-001

(4) Speaker, internal 636925-001

(5) System board (includes replacement thermal material) 676358-001

(6) Chassis fan 636922-001

(7) Baffle 636921-001

(8) Heat sink (includes replacement thermal material) 636919-001

(9) Front I/O and power switch assembly 636926-001

Cables

(10) SATA power cable 636923-001

(11) SATA cable, 1 straight end, 1 angled end (25 inch; 365 mm) 638814-001

(12) SATA cable, 2 straight ends 19-inch; 483 mm) 638813-001

SATA USB 3.0 SuperSpeed power extension cable, 20 in 663214-001

SATA power extension cable, 20 in 633756-001

HP DisplayPort cable 487562-001

Adapter, DMS-59 to dual VGA 463023-001

Adapter, DisplayPort (DP) to DVI 662723-001

Adapter, DVI to VGA 657401-001

Adapter, DisplayPort (DP) to HDMI 617450-001

Adapter, DisplayPort (DP) to VGA 603250-001

Memory modules (PC3-12800, 1666-MHz)

8-MB 689375-001

4-GB 671613-001

2-GB 671612-001

Hard drives

1-TB 636930-001

500-GB 636929-001

250-GB 636927-001

256-GB Solid-state drive (SSD), SATA 6.0 661842-001

120-GB Solid-state drive (SSD), SATA 2.0 661841-001

28 Chapter 6 Illustrated parts catalog

Item Description Spare part number

Optical drives

6X BD-Writer SuperMulti drive 656792-001

16X DVD±RW SuperMulti drive 660408-001

16X DVD-ROM drive 682550-001

Expansion cards

ATI Radeon HD7450, 1-GB PCIe x16 graphics card, includes adapter 682411-001

ATI Radeon HD6350, 512-MB PCIe x16 graphics card 637995-001

AMD FirePro 2270 PCIe x16 graphics card, 512-MB 637213-001

nVidia Quadro NVS310 PCIe x16 graphics card 680653-001

nVidia Quadro NVS300 PCIe x16 graphics card 632486-001

HP FireWire / IEEE 1394a PCIe x1 Card 637591-001

USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports and 2 internal

USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports 608151-001

HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001

Intel PRO/1000CT2 NIC, includes bracket 635523-001

Keyboard

HP PS/2 537745-xxx

HP USB 537746-xxx

USB SmartCard 631411-xxx

Wireless 674314-xxx

Washable 613125-xxx

Processors (include replacement thermal material)

● Intel Core i5 3570 processor, 3.4 GHz 688162-001

ports

NOTE: For a list of supported countries and associated dash numbers, see

part number listing on page 30.

Intel Core i7 3770s processor, 3.1 GHz 689370-001

●

Intel Core i5 3570s processor, 3.1 GHz 695079-001

●

Sequential

663213-001

● Intel Core i5 3470s processor, 2.9 GHz 695077-001

● Intel Pentium Dual-Core G870 processor, 3.1 GHz 691936-001

Intel Core i5 3475s processor, 2.9 GHz 695078-001

●

Intel Core i3 2130 processor, 3.4 GHz 665120-001

●

Intel Core i3 2120 processor, 3.3 GHz 638629-001

●

Intel Pentium Dual-Core G860 processor, 3.0 GHz 665123-001

●

Intel Pentium Dual-Core G640 processor, 2.8 GHz 691935-001

●

Spare parts 29

Item Description Spare part number

● Intel Celeron G460 processor, 1.8 GHz 682410-001

Mouse

Wireless 674317-001

USB, optical, black 537749-001

USB, laser, black 570580-001

Washable 619580-001

Wireless keyboard/mouse transceiver 674319-001

Bezel blank, 5.25-inch 570838-001

Antenna for use with WLAN module 538048-001 583345-001

Hard drive grommet 450712-001

Hard drive adapter, 2.5 inch 586721-001

Printer port kit 638817-001

Serial port kit 638815-001

Card reader, 22-in-1 636166-001

Intel Celeron G550 processor, 2.6 GHz 691934-001

●

Intel Celeron G540 processor, 2.5 GHz 665119-001

●

USB speakers, external 636917-001

USB webcam 674317-001

Rubber Feet Kit 583654-001

Chassis stand 688952-001

HP Business Digital Headset 642738-001

Hard drive conversion bracket 397117-001

Screw Kit 393956-001

Sequential part number listing

Spare part
number

393956-001 Screw Kit

397117-001 Hard drive conversion bracket

450712-001 Hard drive grommet

463023-001 Adapter, DMS-59 to dual VGA

487562-001 HP DisplayPort cable

Description

508987-001 Clamp Lock Kit, includes universal cable (plate not included)

537745-001 Keyboard, PS/2, the United States

30 Chapter 6 Illustrated parts catalog

Spare part
number

537745-031 Keyboard, PS/2, the United Kingdom

537745-041 Keyboard, PS/2, Germany

537745-051 Keyboard, PS/2, France

537745-061 Keyboard, PS/2, Italy

537745-071 Keyboard, PS/2, Spain

537745-081 Keyboard, PS/2, Denmark

537745-091 Keyboard, PS/2, Norway

537745-101 Keyboard, PS/2, Sweden

537745-111 Keyboard, PS/2, Switzerland

537745-121 Keyboard, PS/2, French Canada

537745-131 Keyboard, PS/2, Portugal

537745-141 Keyboard, PS/2, Turkey

537745-151 Keyboard, PS/2, Greece

537745-161 Keyboard, PS/2, Latin America

537745-171 Keyboard, PS/2, Saudi Arabia

Description

537745-181 Keyboard, PS/2, Belgium

537745-201 Keyboard, PS/2, Brazil

537745-211 Keyboard, PS/2, Hungary

537745-221 Keyboard, PS/2, the Czech Republic

537745-231 Keyboard, PS/2, Slovakia

537745-241 Keyboard, PS/2, Poland

537745-251 Keyboard, PS/2, Russia

537745-261 Keyboard, PS/2, Bulgaria

537745-281 Keyboard, PS/2, Belarus

537745-331 Keyboard, PS/2, the Netherlands

537745-351 Keyboard, PS/2, Finland

537745-541 Keyboard, PS/2, Turkey F

537745-AA1 Keyboard, PS/2, Simplified Chinese

537745-AB1 Keyboard, PS/2, Taiwan

537745-AC1 Keyboard, PS/2, Hong Kong

537745-B31 Keyboard, PS/2, International English

537745-B41 Keyboard, PS/2, BHCSY

537745-BB1 Keyboard, PS/2, Israel

537745-BL1 Keyboard, PS/2, BHCSY

Spare parts 31

Spare part
number

537745-CA1 Keyboard, PS/2, Estonia

537745-DD1 Keyboard, PS/2, Iceland

537745-DE1 Keyboard, PS/2, Arab

537745-DF1 Keyboard, PS/2, Kazakstan

537745-KD1 Keyboard, PS/2, South Korea

537745-L31 Keyboard, PS/2, International

537746-001 Keyboard, USB, the United States

537746-031 Keyboard, USB, the United Kingdom

537746-041 Keyboard, USB, Germany

537746-051 Keyboard, USB, France

537746-061 Keyboard, USB, Italy

537746-071 Keyboard, USB, Spain

537746-081 Keyboard, USB, Denmark

537746-091 Keyboard, USB, Norway

537746-101 Keyboard, USB, Sweden

Description

537746-111 Keyboard, USB, Switzerland

537746-121 Keyboard, USB, French Canada

537746-131 Keyboard, USB, Portugal

537746-141 Keyboard, USB, Turkey

537746-151 Keyboard, USB, Greece

537746-161 Keyboard, USB, Latin America

537746-171 Keyboard, USB, Saudi Arabia

537746-181 Keyboard, USB, Belgium

537746-201 Keyboard, USB, Brazil

537746-211 Keyboard, USB, Hungary

537746-221 Keyboard, USB, the Czech Republic

537746-231 Keyboard, USB, Slovakia

537746-241 Keyboard, USB, Poland

537746-251 Keyboard, USB, Russia

537746-281 Keyboard, USB, Belarus

537746-331 Keyboard, USB, the Netherlands

537746-351 Keyboard, USB, Finland

537746-541 Keyboard, USB, Turkey F

537746-AA1 Keyboard, USB, Simplified Chinese

32 Chapter 6 Illustrated parts catalog

Spare part
number

537746-AB1 Keyboard, USB, Taiwan

537746-AC2 Keyboard, USB, Hong Kong

537746-B31 Keyboard, USB, International English

537746-BB1 Keyboard, USB, Israel

537746-BL1 Keyboard, USB, BHCSY

537746-CA1 Keyboard, USB, Estonia

537746-DD1 Keyboard, USB, Iceland

537746-DE1 Keyboard, USB, Arab

537745-DF1 Keyboard, USB, Kazakstan

537746-KD1 Keyboard, USB, South Korea

537746-L31 Keyboard, USB, International

537749-001 Mouse, USB, optical, black

538048-001 HP WLAN 802.11 g/n 1x2 PCIe NIC

570580-001 Mouse, USB

570838-001 Bezel blank, 5.25-inch

Description

583654-001 Rubber Feet Kit

603250-001 Adapter, DisplayPort (DP) to VGA

608151-001 USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports

613125-121 Keyboard, washable, French Canada

613125-001 Keyboard, washable, the United States

613663-001 Power supply, 240W, 85% efficiency

613664-001 Power supply, 240W, High Voltage protection

613763-001 Power supply, 240 W

617450-001 Adapter, DisplayPort (DP) to HDMI

619580-001 Mouse, washable

631411-004 Keyboard, SmartCard, the United States

631411-034 Keyboard, SmartCard, the United Kingdom

631411-044 Keyboard, USB, SmartCard, Germany

631411-054 Keyboard, USB, SmartCard, France

631411-064 Keyboard, USB, SmartCard, Italy

631411-074 Keyboard, USB, SmartCard, Spain

631411-084 Keyboard, USB, SmartCard, Denmark

631411-094 Keyboard, USB, SmartCard, Norway

631411-104 Keyboard, USB, SmartCard, Sweden

Spare parts 33

Spare part
number

631411-114 Keyboard, USB, SmartCard, Switzerland

631411-124 Keyboard, USB, SmartCard, French Canada

631411-134 Keyboard, USB, SmartCard, Portugal

631411-144 Keyboard, USB, SmartCard, Turkey

631411-154 Keyboard, USB, SmartCard, Greece

631411-164 Keyboard, USB, SmartCard, Latin America

631411-174 Keyboard, USB, SmartCard, Saudi Arabia

631411-184 Keyboard, USB, SmartCard, Belgium

631411-204 Keyboard, USB, SmartCard, Brazil

631411-214 Keyboard, USB, SmartCard, Hungary

631411-224 Keyboard, USB, SmartCard, the Czech Republic

631411-234 Keyboard, USB, SmartCard, Slovakia

631411-244 Keyboard, USB, SmartCard, Poland

631411-254 Keyboard, USB, SmartCard, Russia

631411-264 Keyboard, USB, SmartCard, Bulgaria

Description

631411-274 Keyboard, USB, SmartCard, Romania

631411-284 Keyboard, USB, SmartCard, Thailand

631411-334 Keyboard, USB, SmartCard, the Netherlands

631411-554 Keyboard, USB, SmartCard, Turkey F

631411-AA4 Keyboard, USB, SmartCard, Simplified Chinese

631411-AB4 Keyboard, USB, SmartCard, Taiwan

631411-B44 Keyboard, USB, SmartCard, International English

631411-BB4 Keyboard, USB, SmartCard, Israel

631411-BL4 Keyboard, USB, SmartCard, BHCSY

631411-CA4 Keyboard, USB, SmartCard, Estonia

631411-DD4 Keyboard, USB, SmartCard, Iceland

631411-DE4 Keyboard, USB, SmartCard, Arab

631411-DF4 Keyboard, USB, SmartCard, Kazakstan

631411-KD4 Keyboard, USB, SmartCard, South Korea

631411-L34 Keyboard, USB, SmartCard, International

632486-001 nVidia Quadro NVS300 PCIe x16 graphics card

635523-001 Intel PRO/1000CT2 NIC, includes bracket

636166-001 Card reader, 22-in-1

636917-001 USB speakers, external

34 Chapter 6 Illustrated parts catalog

Spare part
number

636919-001 Heat sink (includes replacement thermal material)

636920-001 Front bezel

636921-001 Baffle

636922-001 Chassis fan

636923-001 SATA power cable

636924-001 Access panel

636925-001 Speaker, internal

636926-001 Front I/O and power switch assembly

636927-001 250-GB hard drive

636929-001 500-GB hard drive

636930-001 1-TB hard drive

637213-001 AMD FirePro 2270 PCIe x16 graphics card, 512-MB

637591-001 HP FireWire / IEEE 1394a PCIe x1 Card

637995-001 ATI HD6350, 512-MB PCIe x16 graphics card

638629-001 Intel Core i3 2120 processor, 3.3 GHz

Description

638813-001 SATA cable, 2 straight ends (19 inch (483 mm)

638814-001 SATA cable, 1 straight end, 1 angled end (25 inch; 635 mm)

638815-001 Serial port

638817-001 Printer port

642738-001 HP Business Digital Headset

656792-001 6X BD-Writer SuperMulti drive

657401-001 Adapter, DVI to VGA

660408-001 16X DVD±RW SuperMulti drive

661841-001 120 GB Solid-state drive (SSD), SATA 2.0

661842-001 256 GB Solid-state drive (SSD), SATA 6.0

662723-001 Adapter, DisplayPort (DP) to DVI

663213-001 USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports and 2 internal ports

663214-001 SATA USB 3.0 SuperSpeed power extension cable, 20 in

665119-001 Intel Celeron G540 processor, 2.5 GHz

665120-001 Intel Core i3 2130 processor, 3.4 GHz

665123-001 Intel Pentium Dual-Core G860 processor, 3.0 GHz

671612-001 Memory module, 2-GB, PC3 12800, 1666-MHz

671613-001 Memory module, 4-GB, PC3 12800, 1666-MHz

674314-001 Keyboard, wireless, for use in the United States

Spare parts 35

Spare part
number

682411-001 ATI Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter)

695080-001 Front bezel

674314-121 Keyboard, wireless, for use in French Canada

674317-001 Mouse, wireless

674319-001 Wireless keyboard/mouse transceiver

676358-001 System board (standard) (includes replacement thermal material)

680653-001 nVidia Quadro NVS310 PCIe x16 graphics card

682410-001 Intel Celeron G460 processor, 1.8 GHz

682550-001 16X DVD-ROM drive

688162-001 Intel Core i5 3570 processor, 3.4 GHz

688952-001 Chassis stand

689370-001 Intel Core i7 3770s processor, 3.1 GHz

689375-001 Memory module, 8-GB, PC3 12800, 1666-MHz

691934-001 Intel Celeron G550 processor, 2.6 GHz

691935-001 Intel Pentium Dual-Core G640 processor, 2.8 GHz

Description

691936-001 Intel Pentium Dual-Core G870 processor, 3.1 GHz

695077-001 Intel Core i5 3470s processor, 2.9 GHz

695078-001 Intel Core i5 3475s processor, 2.9 GHz

695079-001 Intel Core i5 3570s processor, 3.1 GHz

695080-001 Front bezel

36 Chapter 6 Illustrated parts catalog

7 Removal and Replacement Procedures

Small Form Factor (SFF) Chassis

Adherence to the procedures and precautions described in this chapter is essential for proper service.
After completing all necessary removal and replacement procedures, run the Diagnostics utility to
verify that all components operate properly.

NOTE: Not all features listed in this guide are available on all computers.

Serial Number Location

Each computer has a unique serial number and product ID number in the location shown below. Keep
these numbers available for use when contacting customer service for assistance.

Figure 7-1 Serial Number and Product ID Location

Preparation for Disassembly

See Identifying the Chassis, Routine Care, and Disassembly Preparation on page 19 for initial safety
procedures.

1. Remove/disengage any security devices that prohibit opening the computer (

Lock on page 86).

2. Close any open software applications.

Serial Number Location 37

Installing a Security

3. Exit the operating system.

4. Remove any compact disc or media card from the computer.

5. Turn off the computer and any peripheral devices that are connected to it.

CAUTION: Turn off the computer before disconnecting any cables.

Regardless of the power-on state, voltage is always present on the system board as long as the
system is plugged into an active AC outlet. In some systems the cooling fan is on even when the
computer is in the “Standby,” or “Suspend” modes. The power cord should always be
disconnected before servicing a unit.

6. Disconnect the power cord from the electrical outlet and then from the computer.

7. Disconnect all peripheral device cables from the computer.

NOTE: During disassembly, label each cable as you remove it, noting its position and routing.

Keep all screws with the units removed.

CAUTION: The screws used in the computer are of different thread sizes and lengths; using

the wrong screw in an application may damage the unit.

38 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Computer Access Panel

Description Spare part number

Access panel 636924-001

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. If the computer is on a stand, remove the computer from the stand.

3. Loosen the captive thumbscrew (1), then lift the access panel off the computer (2).

Figure 7-2 Removing the Access Panel

To install the access panel, reverse the removal procedure.

Computer Access Panel 39

Front Bezel

Description Spare part number

Front bezel 695080-001

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).

Figure 7-3 Removing the Front Bezel

To install the front bezel, reverse the removal procedure.

Computer Access Panel on page 39).

40 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Bezel Blanks

Description Spare part number

5.25-inch bezel blank 570838-001

On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that
need to be removed before installing a drive. To remove a bezel blank:

1. Remove the access panel (

2. Remove the front bezel (

3. To remove a bezel blank, push the two retaining tabs that hold the bezel blank in place towards

the outer right edge of the bezel (1) and slide the bezel blank back and to the right to remove it
(2).

Figure 7-4 Removing a Bezel Blank

Computer Access Panel on page 39).

Front Bezel on page 40)..

4. Replace the front bezel.

Bezel Blanks 41

System Board Connections

Refer to the following illustration and table to identify the system board connectors.

Figure 7-5 System Board Connections

Table 7-1 System Board Connections

No. System Board Connector System Board Label Color Component

1 DIMM (Channel A) XMM3 black Memory Module

2 DIMM (Channel B) XMM1 black Memory Module

3 Power SATAPWR1 black SATA Drives

4 Media Card Reader MEDIA1 black Media Card Reader

5 SATA SATA1 white Optical Drive

6 SATA SATA0 dark blue Hard Drive

7 PCI Express x1 X1PCIEXP1 black Expansion Card

8 PCI Express x16 X16PCIEXP black Expansion Card

9 PCI (2) PCI1 and PCI2 white Expansion Card

42 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Installing Additional Memory

Description Spare part number

8-GB, PC3-12800 689375-001

4-GB, PC3-12800 671613-001

2-GB, PC3-12800 671612-001

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3­SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to two 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.

DDR3-SDRAM DIMMs

For proper system operation, the DDR3-SDRAM DIMMs must be:

industry-standard 240-pin

●

unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant

●

1.5 volt DDR3-SDRAM DIMMs

●

The DDR3-SDRAM DIMMs must also:

support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)

●

contain the mandatory JEDEC SPD information

●

In addition, the computer supports:

512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies

●

single-sided and double-sided DIMMs

●

DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not

●

supported

NOTE: The system will not operate properly if you install unsupported DIMMs.

Installing Additional Memory 43

Populating DIMM Sockets

There are two DIMM sockets on the system board: XMM1 and XMM3 with one socket per Channel.
XMM3 operates in memory channel A. XMM1 operates in memory Channel B.

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 DIMM in Channel A is equal to the total memory capacity of the DIMM in Channel B.

The system will operate in flex mode if the total memory capacity of the DIMM in Channel A is

●

not equal to the total memory capacity of the DIMM 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. If one channel will have more
memory than the other, the larger amount should be assigned to Channel A.

● In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

Installing DIMMs

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power

to drain before adding or removing memory modules. Regardless of the power-on state, voltage is
always supplied to the memory modules as long as the computer is plugged into an active AC outlet.
Adding or removing memory modules while voltage is present may cause irreparable damage to the
memory modules or system board.

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.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

Computer Access Panel on page 39).

44 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

3. Rotate up the drive bay housing to access the memory module sockets on the system board.

Figure 7-6 Rotating the Drive Cage Up

4. Open both latches of the memory module socket (1), and insert the memory module into the

socket (2).

Figure 7-7 Installing a DIMM

NOTE: A memory module can be installed in only one way. Match the notch on the module

with the tab on the memory socket.

A DIMM must occupy the black XMM1 socket.

For maximum performance, populate the sockets so that the memory capacity is equal between
Channel A and Channel B. Refer to

Populating DIMM Sockets on page 44 for more information.

5. 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).

Installing Additional Memory 45

6. Rotate the drive cage back down to its normal position.

Figure 7-8 Rotating the Drive Cage Down

7. Replace the access panel.

8. If the computer was on a stand, replace the stand.

9. Reconnect the power cord and turn on the computer.

10. Lock any security devices that were disengaged when the access panel was removed.

The computer should automatically recognize the additional memory the next time you turn on the
computer.

Removing or Installing an Expansion Card

Description Spare part number

ATI HD6350, 512-MB PCIe x16 graphics card 637995-001

nVidia Quadro NVS310 PCIe x16 graphics card 680653-001

nVidia Quadro NVS300 PCIe x16 graphics card 632486-001

ATI Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter) 682411-001

AMD FirePro 2270 PCIe x16 graphics card, 512-MB 637213-001

USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports and 2 internal ports 663213-001

USB 3.0 SuperSpeed PCI-3 x1 card, includes 2 external Type A ports 608151-001

HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001

Intel PRO/1000CT2 NIC, includes bracket 635523-001

HP FireWire / IEEE 1394a PCIe x1 Card 637591-001

Printer port 638817-001

Serial port, full height 638815-001

The computer has two PCI expansion slots, one PCI Express x1 expansion slot, and one PCI
Express x16 expansion slot.

46 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

NOTE: The PCI and PCI Express slots support only low profile cards.

NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slot.

To install an expansion card:

1. Prepare the computer for disassembly (

2. Remove the access panel (

Computer Access Panel on page 39).

Preparation for Disassembly on page 37).

3. Locate the correct vacant expansion socket on the system board and the corresponding

expansion slot on the back of the computer chassis.

4. Release the slot cover retention latch that secures the slot covers by lifting the green tab on the

latch and rotating the latch to the open position.

Figure 7-9 Opening the Expansion Slot Retainer

Removing or Installing an Expansion Card 47

5. Before installing an expansion card, remove the expansion slot cover or the existing 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 7-10 Removing an Expansion Slot Cover

48 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

b. If you are removing a standard PCI card or PCI Express x1 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 to
release it from the chassis frame (2). Be sure not to scrape the card against the other
components.

NOTE: Before removing an installed expansion card, disconnect any cables that may be

attached to the expansion card.

Figure 7-11 Removing a PCI Express x1 Expansion Card

Removing or Installing an Expansion Card 49

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 7-12 Removing a PCI Express x16 Expansion Card

6. Store the removed card in anti-static packaging.

7. If you are not installing a new expansion card, install an expansion slot cover to close the open

slot.

CAUTION: After removing an expansion card, you must replace it with a new card or

expansion slot cover for proper cooling of internal components during operation.

50 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

8. 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 7-13 Installing an Expansion Card

NOTE: When installing an expansion card, press firmly on the card so that the whole

connector seats properly in the expansion card slot.

9. Rotate the slot cover retention latch back in place to secure the expansion card.

Figure 7-14 Closing the Expansion Slot Retainer

10. Connect external cables to the installed card, if needed. Connect internal cables to the system

board, if needed.

11. Replace the access panel.

12. If the computer was on a stand, replace the stand.

Removing or Installing an Expansion Card 51

13. Reconnect the power cord and turn on the computer.

14. Lock any security devices that were disengaged when the access panel was removed.

15. Reconfigure the computer, if necessary.

52 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Cable Management

The Small Form Factor chassis is a very compact computer and proper routing of the internal cables
is critical to the operation of the computer. Follow good cable management practices when working
inside the computer.

Keep cables away from major heat sources like the heat sink.

●

Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these

●

are not designed to take excessive pressure on them.

Keep cables clear of movable or rotating parts like the power supply and drive cage to prevent

●

them from being cut or crimped when the component is lowered into its normal position.

When folding a flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the

●

wires.

Some flat ribbon cables come prefolded. Never change the folds on these cables.

●

Do not bend any cable sharply. A sharp bend can break the internal wires.

●

Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.

●

Never crease a SATA data cable.

●

Do not rely on components like the drive cage, power supply, or computer cover to push cables

●

down into the chassis. Always position the cables to lay properly by themselves.

When removing the power supply power cables from the connector on the system board, always
follow these steps:

1. Squeeze on the top of the retaining latch attached to the cable end of the connector (1).

2. Grasp the cable end of the connector and pull it straight up (2).

CAUTION: Always pull the connector - NEVER pull on the cable. Pulling on the cable could

damage the cable and result in a failed power supply.

Cable Management 53

Drives

Description Spare part number

Optical drives:

6X BD-Writer SuperMulti drive 656792-001

16X DVD±RW SuperMulti drive 660408-001

16X DVD-ROM drive 682550-001

Hard drives:

1 TB hard drive 636930-001

500 GB hard drive 636929-001

250 GB hard drive 636927-001

256 GB Solid-state drive (SSD), SATA 6.0 661842-001

120 GB Solid-state drive (SSD), SATA 2.0 661841-001

Drive cables:

SATA cable, 2 straight ends (19 inch, 483 mm) 638813-001

SATA cable, 1 straight end, 1 angled end (25-inch (635 mm) 638814-001

SATA power cable 636923-001

A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive.

CAUTION: Make sure personal files on the hard drive are backed up to an external storage device

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.

54 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Drive Positions

Figure 7-15 Drive Positions

Table 7-2 Drive Positions

1 3.5-inch internal hard drive bay

2 3.5-inch internal drive bay for optional drives (media card reader shown)

3 5.25-inch internal drive bay for optional drives (optical drive shown)

NOTE: The drive configuration on your computer may be different than the drive

configuration shown above.

To verify the type, size, and capacity of the storage devices installed in the computer, run Computer
Setup.

Installing and Removing Drives

When installing additional drives, follow these guidelines:

NOTE: Refer to System Board Connections on page 42 for an illustration of the system board drive

connectors.

The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA

●

connector on the system board labeled SATA0.

Connect a SATA optical drive to the white SATA connector on the system board labeled SATA1.

●

Connect a media card reader USB cable to the USB connector on the system board labeled

●

MEDIA1.

The power cable for the SATA drives is a three-headed cable that is plugged into the system

●

board with the first connector routed to the rear of the hard drive, the second connector routed to
the rear of the 3.5” drive, and the third connector routed to the rear of the 5.25” optical drive.

The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.

●

You must install mounting screws to ensure the drive will line up correctly in the drive cage and

●

lock in place. HP has provided extra mounting screws for the internal drive bays (five 6-32
standard screws and four M3 metric screws), installed in the front of the chassis, under the front
bezel. The 6-32 standard screws are required for a secondary hard drive (not supported). All
other drives (except the primary hard drive) use M3 metric screws. The HP-supplied metric
screws are black and the HP-supplied standard screws are silver.

Drives 55

NOTE: If you are replacing the primary hard drive, you must remove the four silver and blue

6-32 isolation mounting screws from the old hard drive and install them in the new hard drive.

Figure 7-16 Extra Mounting Screw Locations

Table 7-3 Extra Mounting Screws

No. Mounting Screw Device

1 Black M3 Metric Screws All Drives (except hard drives)

2 Silver 6-32 Standard Screws Secondary Hard Drive (in systems supporting two hard drives)

There are a total of five extra silver 6-32 standard screws. Four are used as mounting screws for a secondary hard
drive (not supported). The fifth is used for bezel security (see
information).

Front Bezel Security on page 88 for more

CAUTION: To prevent loss of work and damage to the computer or drive:

If you are inserting or removing a drive, shut down the operating system properly, turn off the
computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby
mode.

Before handling a drive, ensure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.

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.”

56 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Removing an Internal 5.25-inch Drive

CAUTION: All removable media should be taken out of a drive before removing the drive from the

computer.

To remove a 5.25-inch internal drive:

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Rotate the drive cage to its upright position (1) and remove the mounting screw on the back left

side of the drive (2).

Figure 7-17 Removing the Drive Mounting Screw

4. Press and hold down the latch to disconnect the power cable (1) and data cable (2) from the rear

of the optical drive.

Computer Access Panel on page 39).

Preparation for Disassembly on page 37).

Figure 7-18 Disconnecting the Power and Data Cables

Drives 57

5. Rotate the drive cage back down to its normal position.

CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.

Figure 7-19 Rotating the Drive Cage Down

6. Slide the drive back until it stops, then lift it up and out of the drive cage.

Figure 7-20 Removing the 5.25-inch Drive

NOTE: When replacing a drive, transfer the four mounting screws from the old drive to the new one.

58 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Installing an Optical Drive into the 5.25-inch Drive Bay

To install an optional 5.25-inch optical drive:

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then

remove the bezel blank. See

4. Install three M3 metric mounting screws in the lower holes on each side of the drive: two on the

right side and one on the front left side. HP has provided extra M3 metric mounting screws on
the front of the chassis, under the front bezel. The M3 metric mounting screws are black. Refer

Installing and Removing Drives on page 55 for an illustration of the extra M3 metric mounting

to
screws location.

CAUTION: Use only 5-mm long screws as mounting screws. Longer screws can damage the

internal components of the drive.

NOTE: When replacing the drive, transfer the three M3 metric mounting screws from the old

drive to the new one.

Figure 7-21 Installing Mounting Screws in the Optical Drive

Computer Access Panel on page 39).

Bezel Blanks on page 41 for more information.

Preparation for Disassembly on page 37).

5. Position the mounting screws on the drive into the J-slots in the drive bay. Then slide the drive

toward the front of the computer until it stops.

Figure 7-22 Installing the Optical Drive

Drives 59

6. Rotate the drive cage to its upright position (1) and install an M3 mounting screw in the back left

side of the drive (2) to secure the drive to the drive cage.

Figure 7-23 Securing the Drive in the Drive Cage

7. Connect the SATA data cable to the white system board connector labeled SATA1 if it is not

already connected.

8. Route the data cable through the cable guides.

CAUTION: There are two cable guides that keep the data cable from being pinched by the

drive cage when raising or lowering it. One is located on the bottom side of the drive cage. The
other is located on the chassis frame under the drive cage. Ensure that the data cable is routed
through these guides before connecting it to the optical drive.

9. Connect the power cable (1) and data cable (2) to the rear of the optical drive.

NOTE: The power cable for the optical drive is a three-headed cable that is routed from the

system board to the hard drive, then to the rear of the optical drive.

Figure 7-24 Connecting the Power and Data Cables

60 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

10. Rotate the drive cage back down to its normal position.

CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.

Figure 7-25 Rotating the Drive Cage Down

11. Replace the access panel.

12. If the computer was on a stand, replace the stand.

13. Reconnect the power cord and turn on the computer.

14. Lock any security devices that were disengaged when the access panel was removed.

The system automatically recognizes the drive and reconfigures the computer.

Removing an Internal 3.5-inch Drive

CAUTION: All removable media should be taken out of a drive before removing the drive from the

computer.

The 3.5-inch drive is located underneath the 5.25-inch drive. You must remove the internal 5.25-inch
drive before removing the internal 3.5-inch drive.

1. Follow the procedure in

inch drive and access the 3.5-inch drive.

CAUTION: Ensure that the computer is turned off and that the power cord is disconnected

from the electrical outlet before proceeding.

Removing an Internal 5.25-inch Drive on page 57 to remove the 5.25-

Drives 61

2. If you are removing a media card reader, disconnect the USB cable from the system board.

Figure 7-26 Disconnecting the Media Card Reader USB Cable

3. Rotate the drive cage to its upright position (1) and remove the mounting screw on the back left

side of the drive (2).

Figure 7-27 Removing the Drive Mounting Screw

4. Rotate the drive cage back down to its normal position.

Figure 7-28 Rotating the Drive Cage Down

62 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

5. Slide the drive back until it stops, then lift it up and out of the drive cage.

Figure 7-29 Removing a 3.5-inch Drive (Media Card Reader Shown)

NOTE: When replacing a 3.5-inch drive, transfer the four mounting screws from the old drive to the

new one.

Installing a Drive into the 3.5-inch Internal Drive Bay

The 3.5-inch bay is located underneath the 5.25-inch drive. To install a drive into the 3.5-inch bay:

1. Follow the procedure in

inch drive and access the 3.5-inch drive bay.

CAUTION: Ensure that the computer is turned off and that the power cord is disconnected

from the electrical outlet before proceeding.

2. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then

remove the bezel blank. See

3. Install three M3 metric mounting screws in the lower holes on each side of the drive: two on the

right side and one on the front left side. HP has provided extra M3 metric mounting screws on
the front of the chassis, under the front bezel. The M3 metric mounting screws are black. Refer

Installing and Removing Drives on page 55 for an illustration of the extra M3 metric mounting

to
screws location.

CAUTION: Use only 5-mm long screws as mounting screws. Longer screws can damage the

internal components of the drive.

NOTE: When replacing the drive, transfer the three M3 metric mounting screws from the old

drive to the new one.

Figure 7-30 Installing Mounting Screws in the Media Card Reader

Removing an Internal 5.25-inch Drive on page 57 to remove the 5.25-

Bezel Blanks on page 41 for more information.

Drives 63

4. Position the mounting screws on the drive into the J-slots in the drive bay. Then slide the drive

toward the front of the computer until it stops.

Figure 7-31 Installing a Drive into the 3.5-inch Drive Bay (Media Card Reader Shown)

5. Rotate the drive cage to its upright position (1) and install an M3 mounting screw in the back left

side of the drive (2) to secure the drive to the drive cage.

Figure 7-32 Securing the Drive in the Drive Cage

6. Rotate the drive cage back down to its normal position.

CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.

Figure 7-33 Rotating the Drive Cage Down

64 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

7. If installing a media card reader, connect the USB cable from the media card reader to the USB

connector on the system board labeled MEDIA1.

Figure 7-34 Connecting the Media Card Reader USB Cable

NOTE: Refer to System Board Connections on page 42 for an illustration of the system board

drive connectors.

8. Replace the 5.25-inch drive.

9. Replace the access panel.

10. If the computer was on a stand, replace the stand.

11. Reconnect the power cord and turn on the computer.

12. Lock any security devices that were disengaged when the access panel was removed.

The system automatically recognizes the drive and reconfigures the computer.

Drives 65

Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive

NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so

that you can transfer the data to the new hard drive.

The preinstalled 3.5-inch hard drive is located under the power supply. To remove and replace the
hard drive:

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Rotate the drive cage for internal drives to its upright position.

Figure 7-35 Rotating the Drive Cage Up

4. Rotate the power supply to its upright position. The hard drive is located beneath the power

supply.

Computer Access Panel on page 39).

Preparation for Disassembly on page 37).

Figure 7-36 Raising the Power Supply

66 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

5. Press and hold down the latch to disconnect the power cable (1) and data cable (2) from the

back of the hard drive.

Figure 7-37 Disconnecting the Hard Drive Power Cable and Data Cable

6. Press down on the green release latch next to the hard drive (1). While holding the latch down,

slide the drive forward until it stops, then lift the drive up and out of the bay (2).

Figure 7-38 Removing the Hard Drive

7. To install a hard drive, you must transfer the silver and blue isolation mounting screws from the

old hard drive to the new hard drive.

Figure 7-39 Installing Hard Drive Mounting Screws

Drives 67

8. Align the mounting screws with the slots on the chassis drive cage, press the hard drive down

into the bay, then slide it back until it stops and locks in place.

Figure 7-40 Installing the Hard Drive

9. Connect the power and data cables to the back of the hard drive.

NOTE: When replacing the primary hard drive, be sure to route the SATA and power cables

through the cable guide on the bottom of the chassis frame behind the hard drive.

The data cable must be connected to the dark blue connector labeled SATA0 on the system
board to avoid any hard drive performance problems.

10. Rotate the drive cage for internal drives and the power supply down to their normal positions.

11. Replace the access panel.

12. If the computer was on a stand, replace the stand.

13. Reconnect the power cord and turn on the computer.

14. Lock any security devices that were disengaged when the access panel was removed.

68 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Baffle

Description Spare part number

Baffle 636921-001

The baffle sits between the front fan and the heat sink.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the cables from the holder on the side of the baffle.

4. Lift the baffle straight up out of the chassis.

Figure 7-41 Removing the baffle

Computer Access Panel on page 39).

Preparation for Disassembly on page 37).

To install the baffle, reverse the removal procedure.

Baffle 69

Front Fan Assembly

Description Spare part number

Front fan assembly 636922-001

The front fan assembly is attached to the front of the chassis.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the front bezel (

4. Remove the baffle (

5. Disconnect the fan cable from the red/brown system board connector labeled CHFAN.

6. Press the two tabs (left, bottom) that secure the fan assembly to the chassis front.

Figure 7-42 Front fan tab locations

7. Pull the assembly toward the rear of the unit, and then lift it out of the chassis.

Figure 7-43 Removing the front fan

Baffle on page 69).

Computer Access Panel on page 39).

Front Bezel on page 40).

Preparation for Disassembly on page 37).

To install the front fan, reverse the removal procedure. Be sure to orient the air flow into the unit.

70 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Front I/O, Power Switch Assembly

Description Spare part number

Front I/O and power switch assembly 636926-001

The front I/O and power switch/LEDs are one assembly, attached to the front of the chassis. Push the
assembly into the chassis to remove.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the front bezel (

4. Remove the chassis fan (

5. Rotate the drive cage to its upright position.

6. Disconnect the four cables from the system board as follows:

Yellow connector labeled FRONT USB1

●

Green connector labeled FRONT USB2

●

Blue connector labeled FRONT AUD

●

Black connector labeled PB/LED

●

7. Remove the screw that secures the assembly to the front of the chassis.

Figure 7-44 Removing the front I/O, power switch/LED assembly screw

Computer Access Panel on page 39).

Front Bezel on page 40).

Front Fan Assembly on page 70).

Preparation for Disassembly on page 37).

Front I/O, Power Switch Assembly 71

8. Route the cables through the slots beneath the drive cage, pull the assembly (right side first) into

the chassis, and then remove the assembly from the computer.

Figure 7-45 Routing the cables and removing the power switch assembly

To install the front I/O and power switch assembly, reverse the removal procedure.

NOTE: Be sure to correctly route the cables beneath the drive cage when reinstalling the assembly.

Proper cable routing prevents damage to the cables and allows the drive cage to close properly.

Speaker

Description Spare part number

Speaker 636925-001

The speaker is attached to the front of the chassis under the rotating drive cage.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the front bezel (

4. Rotate the drive cage to its upright position.

5. Disconnect the speaker wire from the white system board labeled SPKR

6. Remove the two screws that secure the speaker to the chassis (1).

Preparation for Disassembly on page 37).

Computer Access Panel on page 39).

Front Bezel on page 40).

72 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

7. Lift the speaker from the inside of the chassis to remove it (2).

Figure 7-46 Removing the speaker

To install the speaker, reverse the removal procedures.

Heat sink

Description Spare part number

Heat sink 636919-001

The heat sink is secured atop the processor with four captive Torx screws. The heat sink does not
include a fan.

1. Prepare the computer for disassembly (

2. Remove the access panel (

3. Remove the baffle (

4. Remove the chassis fan (

Baffle on page 69).

Computer Access Panel on page 39).

Front Fan Assembly on page 70).

Preparation for Disassembly on page 37).

Heat sink 73

5. Loosen the four captive screws that secure the heat sink to the system board tray.

CAUTION: Heat sink retaining screws should be removed in diagonally opposite pairs (as in

an X) to even the downward forces on the processor. This is especially important as the pins on
the socket are very fragile and any damage to them may require replacing the system board.

Figure 7-47 Removing the heat sink screws

74 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

6. Lift the heat sink from atop the processor and set it on its side to keep from contaminating the

work area with thermal grease.

Figure 7-48 Removing the heat sink

When reinstalling the heat sink, make sure that its bottom has been cleaned with an alcohol wipe and
fresh thermal grease has been applied to the top of the processor.

CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X)

to evenly seat the heat sink on the processor to avoid damage that could require replacing the system
board.

Failure to install the baffle may cause the computer to overheat.

Heat sink 75

Processor

Description Spare part number

Intel Core i7 3770s processor, 3.1 GHz 689370-001

Intel Core i5 3570 processor, 3.4 GHz 688162-001

Intel Core i5 3570s processor, 3.1 GHz 695079-001

Intel Core i5 3475s processor, 2.9 GHz 695078-001

Intel Core i5 3470s processor, 2.9 GHz 695077-001

Intel Core i3 2130 processor, 3.4 GHz 665120-001

Intel Core i3 2120 processor, 3.3 GHz 638629-001

Intel Pentium Dual-Core G870 processor, 3.1 GHz 691936-001

Intel Pentium Dual-Core G860 processor, 3.0 GHz 665123-001

Intel Pentium Dual-Core G640 processor, 2.8 GHz 691935-001

Intel Celeron G550 processor, 2.6 GHz 691934-001

Intel Celeron G540 processor, 2.5 GHz 665119-001

Intel Celeron G460 processor, 1.8 GHz 682410-001

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

3. Remove the baffle (

Baffle on page 69).

4. Remove the heat sink (

Computer Access Panel on page 39).

Heat sink on page 73).

5. Rotate the locking lever to its full open position (1).

6. Raise and rotate the microprocessor retainer to its fully open position (2).

76 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

7. Carefully lift the processor from the socket (3).

CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and

handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.

The heat sink must be installed within 24 hours of installing the processor to prevent damage to
the processor’s solder connections.

Figure 7-49 Removing the processor

To install a new processor:

1. Place the processor in its socket and close the retainer.

2. Secure the locking lever. If reusing the existing heat sink, go to step 3. If using a new heat sink,

go to step 6.

3. If reusing the existing heat sink, clean the bottom of the heat sink with the alcohol pad provided

in the spares kit.

CAUTION: Before reinstalling the heat sink you must clean the top of the processor and the

bottom of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has
evaporated, apply thermal grease to the top of the processor from the syringe supplied in the
spares kit.

4. Apply the thermal grease provided in the spares kit to the top of the processor and install the

heat sink atop the processor.

5. Go to step 7.

Processor 77

6. If using a new heat sink, remove the protective covering from the bottom of the heat sink and

place it in position atop the processor.

7. Secure the heat sink to the system board and system board tray with the four captive screws

and attach the heat sink control cable to the system board.

CAUTION: heat sink retaining screws should be tightened in diagonally opposite pairs (as in

an X) to evenly seat the heat sink on the processor. This is especially important as the pins on
the socket are very fragile and any damage to them may require replacing the system board.

NOTE: After installing a new processor onto the system board, always update the system ROM to

ensure that the latest version of the BIOS is being used on the computer. The latest system BIOS can
be found on the Web at:

Power Supply

Description Spare part number

Power supply, 240W, 85% efficiency 613663-001

Power supply, 240W, High voltage protection 613664-001

Power supply, 240W 613763-001

http://h18000.www1.hp.com/support/files.

WARNING! To reduce potential safety issues, only the power supply provided with the computer, a

replacement power supply provided by HP, or a power supply purchased as an accessory from HP
should be used with the computer.

The rotating power supply is located at the rear of the chassis. It is held in place by a bracket – no
screws are used.

WARNING! Voltage is always present on the system board when the computer is plugged into an

active AC outlet. To avoid possible personal injury and damage to the equipment the power cord
should be disconnected from the computer and/or the AC outlet before opening the computer.

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

Computer Access Panel on page 39).

3. Rotate the drive cage up and disconnect the power cables from all of the drives.

4. Disconnect the power cables from the system board connectors labeled PWRCPU, PWR, and

PWRCMD.

5. Rotate the power supply to its full upright position.

6. Release the power supply cables from the cable retaining clip under the drive cage.

78 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

7. Pull the power supply forward (1) until the posts (2) on the power supply move forward in the

power supply bracket, and then lift the power supply straight up and out of the chassis.

Figure 7-50 Removing the power supply

Use the following table to determine the correct power supply/system board connections.

Table 7-4 Power supply cable – system board connector

Power supply connector label System board connector

P1 PWR

P2 PWRCMD

P3 PWRCPU

To install the power supply, reverse the removal procedure.

CAUTION: When installing the power supply cables, make sure they are properly positioned so

they are not cut by the drive cage and are not pinched by the rotating power supply.

Power Supply 79

System Board

Description Spare part number

System board – standard (includes thermal material) 676358-001

1. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

3. When replacing the system board, make sure the following components are removed from the

defective system board and installed on the replacement system board:

Memory modules (see

●

Expansion cards (

●

Heat sink (

●

Processor (

●

4. Remove the baffle from the chassis (

5. Remove the fan from the chassis (

6. Rotate the drive cage to its upright position.

7. Rotate the power supply to its full upright position.

8. Disconnect all data and power cables from the system board.

9. Disconnect the balance of the cables from the system board.

10. Remove the eight screws (1) that secure the system board to the chassis.

Heat sink on page 73)

Processor on page 76)

Computer Access Panel on page 39).

Installing Additional Memory on page 43)

Removing or Installing an Expansion Card on page 46)

Baffle on page 69).

Front Fan Assembly on page 70).

80 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

11. Slide the system board toward the front of the chassis (2), and then lift the rear of the system

board up and out of the chassis (3).

Figure 7-51 Removing the system board

To install the system board, reverse the removal procedure.

NOTE: When replacing the system board, you must also change the chassis serial number in the

BIOS.

CAUTION: Before reinstalling the heat sink you must clean the top of the processor and the bottom

of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply
thermal grease to the top of the processor from the syringe supplied in the spares kit.

CAUTION: When reconnecting the cables it is important that they be positioned so they do not

interfere with the rotation of the drive cage or power supply.

System Board 81

Battery

The battery that comes with your computer provides power to the real-time clock and has a lifetime of
about three years. When replacing the battery, use a battery equivalent to the battery originally
installed on the computer. The computer comes with a 3-volt lithium coin cell battery.

NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC

wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

WARNING! This 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 140°F (60°C).

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

Replace the battery only with the HP spare designated for this product.

CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings.

When the battery is removed or replaced, the CMOS settings will be cleared. Refer to

Setup (F10) Utility on page 8 for information on backing up the CMOS settings.

NOTE: HP encourages customers to recycle used electronic hardware, HP original print cartridges,

and rechargeable batteries. For more information about recycling programs, go to

recycle.

Computer

http://www.hp.com/

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. Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2. Remove the access panel (

NOTE: 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 your system board, complete the following

instructions to replace the battery:

Computer Access Panel on page 39).

82 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Type 1 Battery Holder

1. Lift the battery out of its holder.

Figure 7-52 Removing the battery from a type 1 holder

2. Slide the replacement battery into position, positive side up.

3. The battery holder automatically secures the battery in the proper position.

4. Replace the computer access panel.

5. Plug in the computer and turn on power to the computer.

6. Reset the date and time, your passwords, and any special system setups, using Computer

Setup. Refer to

Type 2 Battery Holder

1. 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).

2. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with

the positive side up (2). Push the other edge down until the clamp snaps over the other edge of
the battery.

Figure 7-53 Removing the battery from a type 2 holder

Computer Setup (F10) Utility on page 8.

Battery 83

3. Replace the computer access panel.

4. Plug in the computer and turn on power to the computer.

5. Reset the date and time, your passwords, and any special system setups, using Computer

Setup. Refer to

Type 3 Battery Holder

1. Pull back on the clip (1) that holds the battery in place, then remove the battery (2).

2. Insert the new battery and position the clip back in place.

Figure 7-54 Removing the battery from a type 3 holder

Computer Setup (F10) Utility on page 8.

3. Replace the computer access panel.

4. Plug in the computer and turn on power to the computer.

5. Reset the date and time, your passwords, and any special system setups, using Computer

Setup. Refer to

Computer Setup (F10) Utility on page 8.

84 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Using the Small Form Factor Computer in a Tower Orientation

The Small Form Factor computer can be used in a tower orientation. The HP logo plate on the front
bezel is adjustable for either desktop or tower orientation.

1. Prepare the computer for disassembly (

2. Orient the computer so that its right side is facing down and place the computer in the optional

stand.

Figure 7-55 Changing from Desktop to Tower Orientation

NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the

optional tower stand.

Preparation for Disassembly on page 37).

3. Lock any security devices that were disengaged when the access panel was removed.

NOTE: Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer remains

clear and free of obstructions.

Using the Small Form Factor Computer in a Tower Orientation 85

Installing a Security Lock

The security locks displayed below and on the following pages can be used to secure the computer.

HP/Kensington MicroSaver Security Cable Lock

Figure 7-56 Installing a Cable Lock

86 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Padlock

Figure 7-57 Installing a Padlock

Installing a Security Lock 87

Front Bezel Security

The front bezel can be locked in place by installing a security screw provided by HP. To install the
security screw:

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord
to avoid damage to the internal components of the computer.

5. If the computer is on a stand, remove the computer from the stand.

6. Remove the access panel and front bezel.

7. Remove one of the five silver 6-32 standard screws located on the front of the chassis behind

the bezel.

Figure 7-58 Retrieving the Front Bezel Security Screw

8. Replace the front bezel.

88 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

9. Install the security screw next to the middle front bezel release tab to secure the front bezel in

place.

Figure 7-59 Installing the Front Bezel Security Screw

10. Replace the access panel.

11. If the computer was on a stand, replace the stand.

12. Reconnect the power cord and turn on the computer.

13. Lock any security devices that were disengaged when the access panel was removed.

Installing a Security Lock 89

A Power Cord Set Requirements

The power supplies on some computers have external power switches. The voltage select switch
feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts
AC. Power supplies on those computers that do not have external power switches are equipped with
internal switches that sense the incoming voltage and automatically switch to the proper voltage.

The power cord set received with the computer meets the requirements for use in the country where
you purchased the equipment.

Power cord sets for use in other countries must meet the requirements of the country where you use
the computer.

General Requirements

The requirements listed below are applicable to all countries:

1. The power cord must be approved by an acceptable accredited agency responsible for

evaluation in the country where the power cord set will be installed.

2. The power cord set must have a minimum current capacity of 10A (7A Japan only) and a

nominal voltage rating of 125 or 250 volts AC, as required by each country’s power system.

3. The diameter of the wire must be a minimum of 0.75 mm

must be between 1.8 m (6 feet) and 3.6 m (12 feet).

The power cord should be routed so that it is not likely to be walked on or pinched by items placed
upon it or against it. Particular attention should be paid to the plug, electrical outlet, and the point
where the cord exits from the product.

WARNING! Do not operate this product with a damaged power cord set. If the power cord set is

damaged in any manner, replace it immediately.

Japanese Power Cord Requirements

For use in Japan, use only the power cord received with this product.

CAUTION: Do not use the power cord received with this product on any other products.

or 18AWG, and the length of the cord

2

90 Appendix A Power Cord Set Requirements

Country-Specific Requirements

Additional requirements specific to a country are shown in parentheses and explained below.

Country Accrediting Agency Country Accrediting Agency

Australia (1)

Austria (1)

Belgium (1)

Canada (2)

Denmark (1)

Finland (1)

France (1)

Germany (1)

1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm

coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it
will be used.

2. The flexible cord must be Type SVT or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole

grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) configuration.

3. Appliance coupler, flexible cord, and wall plug must bear a “T” mark and registration number in accordance with the

Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm
must be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration.

EANSW

OVE

CEBC

CSA

DEMKO

SETI

UTE

VDE

Italy (1)

Japan (3)

Norway (1)

Sweden (1)

Switzerland (1)

United Kingdom (1)

United States (2)

conductor size. Power cord set fittings (appliance

2

IMQ

METI

NEMKO

SEMKO

SEV

BSI

UL

conductor size. Wall plug

2

Country-Specific Requirements 91

B POST Error Messages

This appendix lists the error codes, error messages, and the various indicator light and audible
sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the
probable source of the problem, and steps you can take to resolve the error condition.

POST Message Disabled suppresses most system messages during POST, such as memory count
and non-error text messages. If a POST error occurs, the screen will display the error message. To
manually switch to the POST Messages Enabled mode during POST, press any key (except F10,

F11, or F12). The default mode is POST Message Disabled.

The speed at which the computer loads the operating system and the extent to which it is tested are
determined by the POST mode selection.

Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish
the schedule, reconfigure the computer to the Full Boot Every x Days mode, using Computer Setup.

NOTE: For more information on Computer Setup, see the Computer Setup (F10) Utility Guide.

92 Appendix B POST Error Messages