HP EliteDesk 705 G4 Operating and maintenance manual

Hardware Reference Guide
HP EliteDesk 705 G4 MT Workstation PC

© Copyright 2018 HP Development Company,
L.P.
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 2018
Document part number: L41061-001
Product notice
This guide describes features that are common
to most models. Some features may not be
available on your product. To access the latest
user guide, go to http://www.hp.com/support,
and follow the instructions to nd your
product. Then select User Guides.
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 full refund subject to the
refund policy of your seller.
For any further information or to request a full
refund of the price of the computer, please
contact your seller.

About This Guide
This guide provides basic information for upgrading the HP EliteDesk Business PC.
WARNING! Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION: Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
IMPORTANT: Indicates information considered important but not hazard-related (for example, messages
related to property damage). A notice alerts the user that failure to follow a procedure exactly as described
could result in loss of data or in damage to hardware or software. Also contains essential information to
explain a concept or to complete a task.
NOTE: Contains additional information to emphasize or supplement important points of the main text.
TIP: Provides helpful hints for completing a task.
iii

iv About This Guide

Table of contents
1 Product features ........................................................................................................................................... 1
Standard conguration 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 bezel blanks .......................................................................................................................................... 9
Replacing the front bezel .................................................................................................................................... 10
Removing and installing the optional front bezel dust lter .............................................................................. 10
System board connections .................................................................................................................................. 12
Upgrading system memory ................................................................................................................................. 13
Installing a memory module ............................................................................................................. 13
Removing or installing an expansion card .......................................................................................................... 17
Drive positions ..................................................................................................................................................... 21
Removing and Installing drives ........................................................................................................................... 22
Removing a 5.25-inch drive .............................................................................................................. 23
Installing a 5.25-inch drive ............................................................................................................... 24
Removing a 9.5 mm slim optical drive .............................................................................................. 27
Installing a 9.5 mm slim optical drive ............................................................................................... 28
Removing a 3.5-inch hard drive ........................................................................................................ 30
Installing a 3.5-inch hard drive ......................................................................................................... 32
Removing a 2.5-inch hard drive ........................................................................................................ 35
Installing a 2.5-inch hard drive ......................................................................................................... 37
Removing and installing an M.2 SSD storage card ........................................................................... 39
Installing a security lock ...................................................................................................................................... 42
Security cable lock ............................................................................................................................. 42
Padlock .............................................................................................................................................. 43
HP Business PC Security Lock V2 ...................................................................................................... 43
Front bezel security ........................................................................................................................... 48
v

Appendix A Battery replacement ..................................................................................................................... 50
Appendix B Electrostatic discharge .................................................................................................................. 54
Preventing electrostatic damage ........................................................................................................................ 54
Grounding methods ............................................................................................................................................. 54
Appendix C Computer operating guidelines, routine care and shipping preparation ............................................. 55
Computer operating guidelines and routine care ............................................................................................... 55
Optical drive precautions ..................................................................................................................................... 56
Operation ........................................................................................................................................... 56
Cleaning ............................................................................................................................................. 56
Safety ................................................................................................................................................ 56
Shipping preparation ........................................................................................................................................... 56
Appendix D Accessibility ................................................................................................................................. 57
Supported assistive technologies ....................................................................................................................... 57
Contacting support .............................................................................................................................................. 57
Index ............................................................................................................................................................. 58
vi

1 Product features
Standard conguration 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 conguration features 1

Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the slim optical drive bay.
Front panel components
1 5.25-inch half-height drive bay (behind bezel) 6 USB port with HP Sleep and Charge
2 Slim optical drive (optional) 7 USB port
3 Power button 8 USB SuperSpeed ports (2)
4 Hard drive activity light 9 USB Type-C port
5 Audio-out (headphone)/Audio-in (microphone) combo
jack
10 SD card reader (optional)
NOTE: The audio-out (headphone)/audio-in (microphone) combo jack supports headphones, line output devices,
microphones, line input devices, or CTIA-style headsets.
NOTE: The USB port with HP Sleep and Charge provides current to charge a device such as a smart phone. The charging
current is available whenever the power cord is connected to the system, even when the system is o.
NOTE: The light on the power button is normally white when the power is on. If it is ashing 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
Rear panel components
1 Audio-out jack for powered audio devices 6 Audio-in jack
2 DisplayPort monitor connectors (2) 7 RJ-45 (network) jack
3 Optional ex port 8 Serial port (optional)
4 USB ports (4) 9 Power cord connector
5 USB SuperSpeed ports (2)
NOTE: 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 specic graphics card installed and software conguration will
determine the behavior.
The system board graphics can be disabled by changing settings in BIOS F10 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