HP EliteDesk 705 G2 SFF Hardware Reference Manual

Hardware Reference Guide

HP EliteDesk 705 G2 SFF Business PC

© Copyright 2015 Hewlett-Packard
Development Company, L.P.

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: May 2015

Document part number: 822865-001

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

Rear panel components ......................................................................................................................................... 3

Serial number location .......................................................................................................................................... 4

2 Hardware upgrades ....................................................................................................................................... 5

Serviceability features ........................................................................................................................................... 5

Warnings and cautions .......................................................................................................................................... 5

Removing the computer access panel .................................................................................................................. 6

Replacing the computer access panel ................................................................................................................... 7

Removing the front bezel ...................................................................................................................................... 8

Removing a slim optical drive bezel blank ............................................................................................................ 9

Replacing the front bezel .................................................................................................................................... 10

Changing from desktop to tower configuration ................................................................................................. 11

System board connections .................................................................................................................................. 12

Installing additional memory .............................................................................................................................. 13

DIMMs ................................................................................................................................................ 13

DDR3/DDR3L-SDRAM DIMMs ............................................................................................................ 13

Populating DIMM sockets .................................................................................................................. 13

Installing DIMMs ................................................................................................................................ 14

Removing or installing an expansion card .......................................................................................................... 16

Drive positions ..................................................................................................................................................... 20

Installing and removing drives ............................................................................................................................ 21

Removing a 9.5mm slim optical drive .............................................................................................. 22

Installing a 9.5mm slim optical drive ............................................................................................... 23

Removing and replacing a primary 3.5-inch hard drive ................................................................... 25

Removing a secondary 3.5-inch hard drive ...................................................................................... 28

Installing a secondary 3.5-inch hard drive ....................................................................................... 30

Removing a 2.5-inch hard drive ........................................................................................................ 33

Installing a 2.5-inch hard drive ......................................................................................................... 35

Installing a security lock ...................................................................................................................................... 38

Cable lock .......................................................................................................................................... 38

Padlock .............................................................................................................................................. 38

HP Business PC Security Lock V2 ...................................................................................................... 39

Front bezel security .......................................................................................................................... 44

v

Appendix A Battery replacement ..................................................................................................................... 45

Appendix B Electrostatic discharge .................................................................................................................. 48

Preventing electrostatic damage ........................................................................................................................ 48

Grounding methods ............................................................................................................................................. 48

Appendix C Computer operating guidelines, routine care and shipping preparation ............................................. 49

Computer operating guidelines and routine care ............................................................................................... 49

Optical drive precautions .................................................................................................................................... 50

Operation ........................................................................................................................................... 50

Cleaning ............................................................................................................................................. 50

Safety ................................................................................................................................................ 50

Shipping preparation ........................................................................................................................................... 50

Appendix D Accessibility ................................................................................................................................. 51

Supported assistive technologies ....................................................................................................................... 51

Contacting support .............................................................................................................................................. 51

Index ............................................................................................................................................................. 52

vi

1 Product 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.

NOTE: This computer model can be used in a tower orientation or a desktop orientation.

Standard configuration features 1

Front panel components

Drive configuration may vary by model. Some models have a bezel blank covering the slim optical drive bay.

1 Slim Optical Drive (optional) 6 Headphone Connector

2 USB 2.0 Charging (powered) Port (black) 7 Dual-State Power Button

3 USB 2.0 Port (black) 8 Hard Drive Activity Light

4 USB 3.0 Ports (blue) 9 SD Card Reader (optional)

5 Microphone/Headphone Connector

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 USB 2.0 Charging Port also provides current to charge a device such as a Smart Phone. The charging current is

available whenever the power cord is plugged into the system, even when the system is off.

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 Maintenance and Service Guide to interpret the code.

2 Chapter 1 Product features

Rear panel components

1 PS/2 Mouse Connector (green) 7 PS/2 Keyboard Connector (purple)

2

Serial Connector 8 DisplayPort Monitor Connectors

3

RJ-45 Network Connector 9 VGA Monitor Connector

4

USB 2.0 Ports with Wake from S4/S5 feature
(black)

10 USB 3.0 Ports (blue)

5

Line-In Audio Connector (blue) 11 USB 2.0 Ports (black)

6 Power Cord Connector 12

Line-Out Connector for powered audio
devices (green)

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

If using a USB keyboard, HP recommends connecting the keyboard to one of the USB 2.0 ports with the wake from S4/S5
feature. The wake from S4/S5 feature is also supported on the PS/2 connectors if enabled in BIOS F10 Setup.

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 double-clicking 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 the
integrated graphics on the system board may be used at the same time. However, for such a configuration, only the display
connected to the discrete graphics card will display POST messages.

The system board graphics can be disabled by changing settings in Computer Setup.

Rear panel components 3

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.

4 Chapter 1 Product features

2 Hardware upgrades

Serviceability features

The computer includes features that make it easy to upgrade and service. A Torx T15 or flathead screwdriver
is needed for some of the installation procedures described in this chapter.

Warnings and cautions

Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and
warnings in this guide.

WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:

Disconnect the power cord from the wall outlet and allow the internal system components to cool before
touching.

Do not plug telecommunications or telephone connectors into the network interface controller (NIC)
receptacles.

Do not disable the power cord grounding plug. The grounding plug is an important safety feature.

Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.

To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup,
posture, and health and work habits for computer users, and provides important electrical and mechanical
safety information. This guide is located on the Web at

http://www.hp.com/ergo.

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

Electrostatic discharge on page 48 for more information.

When the computer is plugged into an AC power source, voltage is always applied to the system board. You
must disconnect the power cord from the power source before opening the computer to prevent damage to
internal components.

Serviceability features 5

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. If the computer is on a stand, remove the computer from the stand and lay the computer down.

6. Pull up the access panel handle (1), and then lift the panel off the computer (2).

6 Chapter 2 Hardware upgrades

Replacing the computer access panel

Slide the tabs on the front end of the access panel under the lip on the front of the chassis (1), and then press
the back end of the access panel onto the chassis so that it locks into place (2).

Replacing the computer access panel 7

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. If the computer is on a stand, remove the computer from the stand and lay the computer down.

6. Remove the computer access panel.

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

8 Chapter 2 Hardware upgrades

Removing a slim optical drive bezel blank

On some models, there is a bezel blank covering the slim optical drive bay. Remove the bezel blank before
installing an optical drive. To remove the bezel blank:

1. Remove the computer access panel and front bezel.

2. To remove the slim optical drive bezel blank, press inward on the three retaining tabs that hold the

bezel blank in place (1), and then rotate the bezel blank off the front bezel (2).

Removing a slim optical drive bezel blank 9

Replacing the front bezel

Insert the four hooks on the bottom side of the bezel into the rectangular holes on the chassis (1), and then
rotate the top side of the bezel onto the chassis (2) and snap it into place.

10 Chapter 2 Hardware upgrades

Changing from desktop to tower configuration

The Small Form Factor computer can be used in a tower orientation with an optional tower stand that can be
purchased from HP.

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

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

stand.

6. Reconnect the power cord and any external devices, and then turn on the computer.

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

and free of obstructions.

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

Changing from desktop to tower configuration 11

System board connections

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

No. System Board Connector System Board Label Color Component

1 PCI Express x16 Gen 2

downshifted to a x4

X4PCIEXP white Expansion Card

2 PCI Express x1 Gen 2 X1PCIEXP2 black Expansion Card

3 PCI Express x1 Gen 2 X1PCIEXP1 black Expansion Card

4 PCI Express x16 Gen 3 X16PCIEXP black Expansion Card

5 Serial Port COMB black Optional Second Serial Port

6 DIMM4 (Channel A) DIMM4 white Memory Module

7 DIMM3 (Channel A) DIMM3 black Memory Module

8 DIMM2 (Channel B) DIMM2 white Memory Module

9 DIMM1 (Channel B) DIMM1 black Memory Module

10 SATA 3.0 SATA2 light blue Any SATA Device other than the

Primary Hard Drive

11 SATA 3.0 SATA1 light blue Any SATA Device other than the

Primary Hard Drive

12 SATA 3.0 SATA0 dark blue Primary Hard Drive

13 Battery BAT black Battery

12 Chapter 2 Hardware upgrades