HP EliteDesk 705 G3 Operating and maintenance manual

Hardware Reference Guide
HP EliteDesk 705 G3 Desktop Mini

© Copyright 2016 HP Development Company,
L.P.
Windows is either a registered trademark or
trademark of Microsoft Corporation in the
United States and/or other countries.
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: July 2016
Document part number: 865597-001
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 or
versions of Windows. Systems may require
upgraded and/or separately purchased
hardware, drivers, software or BIOS update to
take full advantage of Windows functionality.
For details on Windows® 8 functionality, go to
http://www.microsoft.com for details.
For details on Windows 7 functionality. Go to
http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.
To access the latest user guides or manuals for
your product, go to http://www.hp.com/
support, and select your country. Select Find
your product, and then follow the on-screen
instructions.
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 Desktop Mini Business PC.
WARNING! Text set o in this manner indicates that failure to follow directions could result in bodily harm or
loss of life.
CAUTION: Text set o in this manner indicates that failure to follow directions could result in damage to
equipment or loss of information.
NOTE: Text set o in this manner provides important supplemental information.
iii

iv About This Book

Table of contents
1 Product features ........................................................................................................................................... 1
Standard conguration features ........................................................................................................................... 1
Front components ................................................................................................................................................. 2
Rear components ................................................................................................................................................... 3
Serial number location .......................................................................................................................................... 4
2 Setup ............................................................................................................................................................ 5
Changing from desktop to tower conguration .................................................................................................... 5
Attaching the computer to a mounting xture ..................................................................................................... 6
Installing a security cable ...................................................................................................................................... 7
Connecting the power cord .................................................................................................................................... 7
3 Hardware upgrades ....................................................................................................................................... 8
Serviceability features ........................................................................................................................................... 8
Warnings and cautions .......................................................................................................................................... 8
Removing the computer access panel ................................................................................................................... 9
Replacing the computer access panel ................................................................................................................. 10
Installing memory modules ................................................................................................................................ 11
Memory modules ............................................................................................................................... 11
Memory module specications ......................................................................................................... 11
Populating memory module slots .................................................................................................... 12
Installing memory modules .............................................................................................................. 13
Removing a hard drive ......................................................................................................................................... 17
Installing a hard drive .......................................................................................................................................... 18
Replacing an M.2 PCIe solid state drive (SSD) ..................................................................................................... 19
Replacing the WLAN module ............................................................................................................................... 23
Installing an external antenna ............................................................................................................................ 27
Replacing the battery .......................................................................................................................................... 31
Synchronizing the optional wireless keyboard and mouse ................................................................................ 35
v

Appendix A Electrostatic discharge .................................................................................................................. 37
Preventing electrostatic damage ........................................................................................................................ 37
Grounding methods ............................................................................................................................................. 37
Appendix B Computer operating guidelines, routine care and shipping preparation ............................................. 38
Computer operating guidelines and routine care ............................................................................................... 38
Shipping preparation ........................................................................................................................................... 39
Index ............................................................................................................................................................. 40
vi

1 Product features
Standard conguration features
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: This computer model can be used in a tower orientation or a desktop orientation. The stand is sold
separately.
Standard conguration features 1

Front components
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Ite
m
Icon Component Ite
m
Icon Component
1 Audio-out (headphone) jack 4 USB port
2 Audio-out (headphone)/Audio-in (microphone)
combo jack
5 Hard drive light
3 USB 3.0 (charging) port 6 Power button
NOTE: The USB 3.0 (charging) port also provides current to charge a device such as a Smart Phone. The charging current is available
whenever the power cord is connected to the system, even when the system is o.
2 Chapter 1 Product features

Rear components
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Ite
m
Icon Component Ite
m
Icon Component
Ite
m
Component Ite
m
Component
1 External antenna 8 Power cord retention hook
2 Dual-Mode DisplayPort (D++) 9 USB ports (2)
3 VGA monitor port 10 Padlock loop
4 External antenna connectors (2) 11 RJ-45 (network) jack
5 DisplayPort, HDMI (shown), VGA, or Serial
connector*
12 Security cable slot
6 Thumbscrew 13 Power connector
7 USB 3.0 ports (2) (blue)
* Optional
Rear 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 Setup
Changing from desktop to tower conguration
The 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 a USB ash drive, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the AC 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 up 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, then turn on the computer.
NOTE: Ensure that 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 conguration 5

Attaching the computer to a mounting xture
The computer can be attached to a wall, swing arm, or other mounting xture.
NOTE: This apparatus is intended to be supported by UL or CSA Listed wall mount bracket.
1. If the computer is on a stand, remove the computer from the stand and lay the computer down.
2. To attach the computer to a swing arm (sold separately), insert four screws through the holes on the
swing arm plate and into the mounting holes on the computer.
CAUTION: This computer supports the VESA industry standard 100 mm mounting holes. To attach a
third-party mounting solution to the computer, use the screws that are supplied with the solution. It is
important to verify that the manufacturer’s mounting solution is compliant with the VESA standard and
is rated to support the weight of the computer. For best performance, it is important to use the power
cord and other cables provided with the computer.
To attach the computer to other mounting xtures, follow the instructions included with the mounting
xture to ensure that the computer is safely attached.
6 Chapter 2 Setup

Installing a security cable
The security cable and padlock displayed below can be used to secure the computer.
NOTE: The security cable is designed to act as a deterrent, but it may not prevent the computer from being
mishandled or stolen.
Connecting the power cord
When connecting the AC adapter, it is important to follow the steps below to ensure that the power cord does
not pull free from the computer.
1. Connect the power cord to the AC adapter (1).
2. Plug the power cord into an AC outlet (2).
3. Connect the AC adapter cord to the power connector on the rear of the computer (3).
4. Route the AC adapter cord through the retainer clip to prevent the AC adapter cord from becoming
disconnected from the computer (4).
CAUTION: Failure to secure the AC adapter cord with the retainer clip may result in the adapter cord
becoming disconnected and loss of data.
Installing a security cable 7

3 Hardware upgrades
Serviceability features
The computer includes features that make it easy to upgrade and service. No tools are needed for most of the
installation procedures described in this chapter.
Warnings and cautions
Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and
warnings in this guide.
WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or re:
Disconnect the power cord from the AC outlet and allow the internal system components to cool before
touching.
Do not connect telecommunications or telephone connectors to 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) AC 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 briey touching a
grounded metal object. See Electrostatic discharge on page 37 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.
NOTE: Your computer model may look slightly dierent from the illustrations in this chapter.
8 Chapter 3 Hardware upgrades

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 a USB ash drive, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the AC 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. Loosen the thumbscrew on the rear of the computer (1).
NOTE: If necessary, a Torx T-15 screwdriver may be used to loosen the thumbscrew.
7. Slide the panel forward and lift if o the computer (2).
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Removing the computer access panel 9

Replacing the computer access panel
1. Place the panel on the computer and slide it back (1).
2. Tighten the thumbscrew (2) to secure the panel in place.
NOTE: Your computer model may look slightly dierent from the illustration in this section.
10 Chapter 3 Hardware upgrades

Installing memory modules
The computer comes with small outline, dual inline memory modules (SODIMMs).
Memory modules
The memory module slots on the system board can be populated with up to two industry-standard memory
modules. These memory module slots are populated with at least one preinstalled memory module. To
achieve the maximum memory support, you can populate the system board with up to 16 GB of memory.
Memory module specications
For proper system operation, the memory modules must meet the following qualications:
Component Specication
Memory modules 1.2 volt DDR4-SDRAM memory modules
Compliance unbuered non-ECC PC4-17000 DDR4-2133 MHz-compliant
Pins industry-standard 288-pin containing the mandatory Joint Electronic Device Engineering
Council (JEDEC) specication
Support support CAS latency 15 DDR4 2133 MHz (15-15-15 timing)
Slots 2
Maximum Memory 32
Supported 512 Mbit, 1 Gbit, and 2 Gbit non-ECC memory technologies single-sided and double-
sided memory modules
Note The system will not operate properly if you install unsupported memory modules.
Memory modules constructed with x8 and x16 DDR devices are supported; memory
modules constructed with x4 SDRAM are not supported.
HP oers upgrade memory for this computer and advises that the consumer purchase it to avoid
compatibility issues with unsupported third-party memory.
Installing memory modules 11

Populating memory module slots
There are two memory module slots on the system board, with one slot per channel. The sockets are labeled
DIMM1 and DIMM3. The DIMM1 slot operates in memory channel B. The DIMM3 slot operates in memory
channel A.
Item Description System Board Label Slot Color
1 Memory module slot, Channel B DIMM1 Black
2 Memory module slot, Channel A DIMM3 Black
The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending
on how the memory modules are installed.
●The system will operate in single channel mode if the memory module slots are populated in one
channel only.
●The system will operate in a higher-performing dual channel mode if the memory capacity of the
memory module in Channel A is equal to the memory capacity of the memory module in Channel B.
●The system will operate in ex mode if the memory capacity of the memory module in Channel A is not
equal to the memory capacity of the memory module in Channel B. In ex 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 memory module in the
system.
12 Chapter 3 Hardware upgrades

Installing memory modules
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 slots 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 briey touching a grounded metal
object. For more information, see Electrostatic discharge on page 37.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the
module.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as a USB ash drive, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the AC outlet and disconnect any external devices.
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.
For instructions, see Removing the computer access panel on page 9.
7. Lift the tab (1) in the center, and then slide the fan (2) toward the front of the chassis to remove it.
8. Disconnect the fan cable (3) from the system board.
Installing memory modules 13

9. Locate the memory modules on the system board.
10. To remove a memory module, press outward on the two latches on each side of the memory module (1),
and then pull the memory module (2) out of the slot.
14 Chapter 3 Hardware upgrades