Microsoft and Windows are U.S. registered
trademarks of the Microsoft group of
companies.
The information contained herein is subject
to change without notice. 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.
First Edition: August 2014
Document part number: 789430-001
Product Notice
This guide describes features that are
common to most models. Some features
may not be available on your computer.
Not all features are available in all editions
of Windows 8. This computer may require
upgraded and/or separately purchased
hardware, drivers and/or software to take
full advantage of Windows 8 functionality.
See
http://www.microsoft.com for details.
This computer may require upgraded and/
or separately purchased hardware and/or a
DVD drive to install the Windows 7 software
and take full advantage of Windows 7
functionality. See
http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.
Software terms
By installing, copying, downloading, or
otherwise using any software product
preinstalled on this computer, you agree to
be bound by the terms of the HP End User
License Agreement (EULA). If you do not
accept these license terms, your sole
remedy is to return the entire unused
product (hardware and software) within 14
days for a refund subject to the refund
policy of your place of purchase.
For any further information or to request a
full refund of the computer, please contact
your local point of sale (the seller).
About This Book
This guide provides basic information for upgrading the HP EliteDesk Business PC.
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
Index ................................................................................................................................................................... 40
vi
1Product features
Standard configuration features
Features may vary depending on the model. For support assistance and to learn more about the
hardware and software installed on your computer model, run the HP Support Assistant utility.
Standard configuration features1
Front panel components
Drive configuration may vary by model. Some models have a bezel blank covering the optical drive
bay.
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the
connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with
the computer and it is displaying a diagnostic code. Refer to the
code.
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use
the connector for a line-in device or a microphone. You can reconfigure the connector at any time by doubleclicking the Audio Manager icon in the Windows taskbar.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and/
or the integrated graphics on the system board may be used. The specific graphics card installed and software
configuration will determine the behavior.
The system board graphics can be disabled by changing settings in Computer Setup.
USB 2.0 Ports (black)8PS/2 Mouse Connector (green)
USB 3.0 Ports (blue)11Line-In Audio Connector (blue)
Line-Out Connector for powered audio
devices (green)
Rear panel components3
Serial number location
Each computer has a unique serial number and a product ID number that are located on the exterior
of the computer. Keep these numbers available for use when contacting customer service for
assistance.
4Chapter 1 Product features
2Hardware upgrades
Serviceability features
The computer includes features that make it easy to upgrade and service. A Torx T15 or flathead
screwdriver is needed for many of the installation procedures described in this chapter.
Warnings and cautions
Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and
warnings in this guide.
WARNING!To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:
Disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
Do not plug telecommunications or telephone connectors into the network interface controller (NIC)
receptacles.
Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.
To reduce the risk of serious injury, read the
setup, posture, and health and work habits for computer users, and provides important electrical and
mechanical safety information. This guide is located on the Web at
WARNING!Energized and moving parts inside.
Disconnect power to the equipment before removing the enclosure.
Replace and secure the enclosure before re-energizing the equipment.
CAUTION:Static electricity can damage the electrical components of the computer or optional
equipment. Before beginning these procedures, ensure that you are discharged of static electricity by
briefly touching a grounded metal object. See
information.
When the computer is plugged into an AC power source, voltage is always applied to the system
board. You must disconnect the power cord from the power source before opening the computer to
prevent damage to internal components.
Safety & Comfort Guide
Electrostatic discharge on page 37 for more
. It describes proper workstation,
http://www.hp.com/ergo.
Serviceability features5
Removing the computer access panel
To access internal components, you must remove the access panel:
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.Lift up on the access panel handle (1), slide the computer back approximately 12 mm (1/2 inch)
(2), and then lift the access panel off the computer (3).
6Chapter 2 Hardware upgrades
Replacing the computer access panel
Align the tabs on the access panel with the slots on the chassis and set the access panel straight
down onto the chassis (1), and then slide the panel forward (2) until it locks into place.
Replacing the computer access panel7
Removing the front bezel
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.Remove the computer access panel.
6.Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).
8Chapter 2 Hardware upgrades
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