HP EliteDesk 705 G5 Manual

Maintenance and Service Guide
HP EliteDesk 705 G5 Small Form Factor Business PC

© Copyright 2019 HP Development Company,
L.P.
AMD, Athlon, Radeon, and Ryzen are
trademarks of Advanced Micro Devices, Inc.
Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel is a trademark of Intel Corporation or its
subsidiaries in the U.S. and/or other countries.
Microsoft and Windows are trademarks of the
Microsoft group of companies. DisplayPort and
the DisplayPort logo are trademarks owned by
the Video Electronics Standards Association
(VESA) in the United States and 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: November 2019
Document Part Number: L71695-001
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.
Windows 10 is automatically updated, which is
always enabled. ISP fees may apply and
additional requirements may apply over time
for updates. Go to http://www.microsoft.com
for details.
To access the latest user guides, 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.
Not all features are available in all editions of
Windows. This computer may require upgraded
and/or separately purchased hardware, drivers
and/or software to take full advantage of
Windows functionality. Go to
http://www.microsoft.com for details.

Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place
the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, at
surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as
pillows or rugs or clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft
surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with
the user-accessible surface temperature limits dened by applicable safety standards.
iii

iv Safety warning notice

Table of contents
1 Computer features ........................................................................................................................................ 1
Standard conguration features ........................................................................................................................... 1
Front panel components ........................................................................................................................................ 2
Rear panel components ......................................................................................................................................... 3
Serial number location .......................................................................................................................................... 4
Changing from desktop to tower orientation ........................................................................................................ 5
2 Illustrated parts catalog ................................................................................................................................ 6
Computer major components ................................................................................................................................ 6
Cables and adapters .............................................................................................................................................. 9
Mouse and keyboards .......................................................................................................................................... 10
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 12
Electrostatic discharge information .................................................................................................................... 12
Generating static electricity .............................................................................................................. 12
Preventing electrostatic damage to equipment ............................................................................... 13
Personal grounding methods and equipment .................................................................................. 13
Grounding the work area ................................................................................................................... 14
Recommended materials and equipment ........................................................................................ 14
Operating guidelines ........................................................................................................................................... 15
Routine care ......................................................................................................................................................... 15
General cleaning safety precautions ................................................................................................ 15
Cleaning the computer case .............................................................................................................. 15
Cleaning the keyboard ....................................................................................................................... 16
Cleaning the monitor ......................................................................................................................... 16
Cleaning the mouse ........................................................................................................................... 16
Service considerations ......................................................................................................................................... 16
Tools and software requirements ..................................................................................................... 17
Screws ............................................................................................................................................... 17
Cables and connectors ...................................................................................................................... 17
Hard drives ........................................................................................................................................ 17
Lithium coin cell battery .................................................................................................................... 18
SATA hard drives .................................................................................................................................................. 18
SMART ATA drives ................................................................................................................................................ 18
SATA hard drive cables ...................................................................................................................... 18
SATA data cable ............................................................................................................... 18
v

Cable management ........................................................................................................................... 19
4 Removal and replacement procedures ........................................................................................................... 20
Preparation for disassembly ............................................................................................................................... 20
Front bezel dust lter .......................................................................................................................................... 21
Access panel ......................................................................................................................................................... 23
Front bezel ........................................................................................................................................................... 24
Slim optical drive bezel blank .............................................................................................................................. 25
Drive cage ............................................................................................................................................................ 26
System board connectors .................................................................................................................................... 27
Memory ................................................................................................................................................................ 28
Populating DIMM sockets .................................................................................................................. 28
Removing and installing DIMMs ........................................................................................................ 29
Expansion card ..................................................................................................................................................... 31
Drives ................................................................................................................................................................... 35
Drive positions ................................................................................................................................... 35
Installing and removing drives .......................................................................................................... 35
Removing a 9.5 mm slim optical drive ........................................................................... 36
Installing a 9.5 mm slim optical drive ............................................................................ 38
Removing a 3.5 inch hard drive ...................................................................................... 39
Installing a 3.5 inch hard drive ........................................................................................ 40
Removing and installing an M.2 solid-state drive .......................................................... 43
Fan duct ................................................................................................................................................................ 45
Heat sink and fan ................................................................................................................................................. 46
Processor ............................................................................................................................................................. 47
WLAN module ...................................................................................................................................................... 48
Power supply ....................................................................................................................................................... 49
Option card ........................................................................................................................................................... 51
Hood sensor ......................................................................................................................................................... 52
Card reader ........................................................................................................................................................... 53
Speaker ................................................................................................................................................................ 54
Antennas .............................................................................................................................................................. 55
System board ....................................................................................................................................................... 57
5 Computer Setup (F10) Utility ........................................................................................................................ 59
Computer Setup (F10) Utilities ............................................................................................................................ 59
Using Computer Setup (F10) Utilities ................................................................................................ 59
Computer Setup–Main ....................................................................................................................... 61
Computer Setup—Security ............................................................................................................... 63
Computer Setup—Advanced ............................................................................................................. 66
Computer Setup—UEFI Drivers ......................................................................................................... 71
vi

Recovering the Conguration Settings ............................................................................................................... 71
6 Troubleshooting without diagnostics ............................................................................................................ 72
Safety and comfort .............................................................................................................................................. 72
Before you call for technical support .................................................................................................................. 72
Helpful hints ........................................................................................................................................................ 73
Solving general problems .................................................................................................................................... 74
Solving power problems ...................................................................................................................................... 77
Solving hard drive problems ................................................................................................................................ 78
Solving media card reader problems ................................................................................................................... 80
Solving display problems .................................................................................................................................... 82
Solving audio problems ....................................................................................................................................... 85
Solving printer problems ..................................................................................................................................... 87
Solving keyboard and mouse problems .............................................................................................................. 89
Solving hardware installation problems ............................................................................................................. 90
Solving network problems .................................................................................................................................. 91
Solving memory problems .................................................................................................................................. 93
Solving CD-ROM and DVD problems .................................................................................................................... 95
Solving USB ash drive problems ........................................................................................................................ 97
Solving front panel component problems .......................................................................................................... 98
Solving Internet access problems ....................................................................................................................... 98
Solving software problems .................................................................................................................................. 99
7 POST error messages ................................................................................................................................. 100
POST numeric codes and text messages .......................................................................................................... 100
Interpreting POST diagnostic front panel lights and audible codes ................................................................. 104
8 Password security and resetting CMOS ........................................................................................................ 106
Resetting the password jumper ........................................................................................................................ 106
Changing a Setup or Power-On password ......................................................................................................... 107
Deleting a Setup or Power-On password .......................................................................................................... 108
Clearing and resetting the CMOS ....................................................................................................................... 108
9 Using HP PC Hardware Diagnostics .............................................................................................................. 110
Using HP PC Hardware Diagnostics Windows (select products only) ............................................................... 110
Downloading HP PC Hardware Diagnostics Windows ..................................................................... 110
Downloading the latest HP PC Hardware Diagnostics Windows version ..................... 111
Downloading HP Hardware Diagnostics Windows by product name or number
(select products only) ................................................................................................... 111
Installing HP PC Hardware Diagnostics Windows ........................................................................... 111
vii

Using HP PC Hardware Diagnostics UEFI ........................................................................................................... 111
Starting HP PC Hardware Diagnostics UEFI .................................................................................... 112
Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive ............................................ 112
Downloading the latest HP PC Hardware Diagnostics UEFI version ............................ 112
Downloading HP PC Hardware Diagnostics UEFI by product name or number
(select products only) ................................................................................................... 112
Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ........................................... 113
Downloading Remote HP PC Hardware Diagnostics UEFI ............................................................... 113
Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ............... 113
Downloading Remote HP PC Hardware Diagnostics UEFI by product name or
number .......................................................................................................................... 113
Customizing Remote HP PC Hardware Diagnostics UEFI settings .................................................. 113
10 Backing up, restoring, and recovering ........................................................................................................ 115
Backing up information and creating recovery media ...................................................................................... 115
Using Windows tools ....................................................................................................................... 115
Using the HP Cloud Recovery Download Tool to create recovery media (select products only) ... 115
Restoring and recovery ..................................................................................................................................... 116
Restoring, resetting, and refreshing using Windows tools ............................................................ 116
Recovering using HP Recovery media ............................................................................................. 116
Changing the computer boot order ................................................................................................ 116
Using HP Sure Recover (select products only) ................................................................................ 117
11 Power cord set requirements .................................................................................................................... 118
General requirements ........................................................................................................................................ 118
Japanese power cord requirements .................................................................................................................. 118
Country-specic requirements .......................................................................................................................... 119
12 Statement of memory volatility ................................................................................................................ 120
Nonvolatile memory usage ............................................................................................................................... 122
Questions and answers ..................................................................................................................................... 124
Using HP Sure Start (select models only) .......................................................................................................... 125
13 Specications .......................................................................................................................................... 126
Index ........................................................................................................................................................... 127
viii

1 Computer features
Standard conguration features
Features 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: You can use this computer model in a tower orientation or a desktop orientation.
See Changing from desktop to tower orientation on page 5.
Standard conguration features 1

Front panel components
Drive conguration varies by model. Some models have a bezel blank that covers one or more drive bays.
Table 1-1 Identifying the front panel components
Front panel components
1 SD card reader (optional) 5 Audio-out (headphone)/Audio-in (microphone) combo
jack
2 USB Type-C charging port 6 Hard drive activity light
3 USB SuperSpeed ports (3) 7 Power button
4 USB port with HP Sleep and Charge 8 Slim optical drive (optional)
NOTE: The combo jack supports headphones, line output devices, microphones, line input devices, or CTIA-style headsets.
NOTE: The light on the power button is normally white when the power is on. If the light ashes red, the computer
displays a diagnostic code to indicate a problem. For more information, see POST error messages on page 100.
2 Chapter 1 Computer features

Rear panel components
Table 1-2 Identifying the rear panel components
Rear panel components
1 Audio-in jack 6 Optional port
2 Serial port (optional) 7 USB ports (2)
3 RJ-45 (network) jack 8 USB SuperSpeed ports (4)
4 Audio-out jack for powered audio devices 9 Power cord connector
5 DisplayPort™ monitor connectors (2)
NOTE: Your model might have additional optional ports available from HP.
When a graphics card is installed in one of the system board slots, you can use the video connectors on the graphics card or the
integrated graphics on the system board. The specic graphics card installed and software conguration determine the
behavior.
You can disable the system board graphics 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 when contacting customer service for assistance.
4 Chapter 1 Computer features

Changing from desktop to tower orientation
You can use the computer in a tower orientation with an optional tower stand that you can purchase from HP.
NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower
stand.
1. Remove or disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs and USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, and turn o any external devices.
4. Disconnect the power cord from the AC outlet and disconnect any external devices.
5. Orient the computer so that its right side faces up, and place the computer in the optional stand.
6. Reconnect the power cord and any external devices, and then turn on the computer.
NOTE: Be sure that at least 10.2 cm (4 in) of space on all sides of the computer remains clear and free
of obstructions.
7. Lock any security devices that were disengaged before the computer was moved.
Changing from desktop to tower orientation 5

2 Illustrated parts catalog
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Computer major components
Table 2-1 Identifying computer major components
Item Description
(1) Antenna cover
(2) Hood sensor
(3) Graphics card
AMD Radeon™ R7 430 2 GB
AMD Radeon RX550X 4 GB
(4) Speaker
6 Chapter 2 Illustrated parts catalog

Table 2-1 Identifying computer major components (continued)
Item Description
(5) Fan duct
(6) Power supply (180 W)
(7) System board (includes replacement thermal material)
(8) Heat sink (includes replacement thermal material)
(9) Processor
AMD Ryzen™ 5 PRO 3400G
AMD Ryzen 3 PRO 3200G
AMD Athlon™ PRO 300 GE
(10) Access panel
(11) Solid-state drives (2.5 inch, SATA, TLC)
512 GB
512 GB, self-encrypting (SED), Opal 2
512 GB, FIPS 140-2
256 GB
256 GB, self-encrypting (SED), Opal 2
256 GB, FIPS 140-2
(12) Drive cage
NOTE: The drive cage is not oered as a spare part.
(13) Optical drive latch
(14) Optical drives, 9.5 mm
BD Blu-ray writer drive
DVD±RW drive
DVD-ROM drive
*Optical drive bezel
(15) Hard drives (3.5 inch)
2 TB, 7200 rpm
2 TB, 5400 rpm
1 TB, 7200 rpm, 7 mm
1 TB, 7200 rpm
500 GB, 7200 rpm hard drive, self-encrypting (SED), Opal 2, 7 mm
500 GB, 7200 rpm
500 GB, 7200 rpm, 7 mm
500 GB, 7200 rpm. self-encrypting drive (SED), Opal 2
Computer major components 7

Table 2-1 Identifying computer major components (continued)
Item Description
500 GB, 7200 rpm hard drive, FIPS, 7 mm
*Solid-state drives (2280, NVMe, M.2)
2 TB, PCIe, TLC
1 TB, TLC
512 GB, PCIe, TLC
512 GB, PCIe
512 GB, self-encrypting (SED), TLC
512 GB, SATA-3, TLC, self-encrypting (SED), Opal 2
512 GB, SATA-3, FIPS, TLC
512 GB, SATA-3, TLC
256 GB, PCIe, TLC
256 GB, PCIe
256 GB, self-encrypting (SED), TLC
256 GB, SATA-3, TLC, self-encrypting (SED), Opal 2
256 GB, SATA-3, FIPS, TLC
256 GB, SATA-3, TLC
128 GB, PCIe, TLC
(16) Dust lter
(17) Bezel blank for optical drive slot
(18) Front bezel
(19) Computer chassis
NOTE: The chassis is not oered as a spare part.
*Option card:
HDMI option card
DisplayPort option card
VGA option card
USB Type-C option card
*Memory modules (UDIMM, NECC)
PC4-3200 (select products only):
●16 GB
●8 GB
●4 GB
PC4-2666:
8 Chapter 2 Illustrated parts catalog

Table 2-1 Identifying computer major components (continued)
Item Description
●32 GB
●16 GB
●8 GB
●4 GB
*WLAN modules
Intel® Wi-Fi 6 AX200 + Bluetooth® 5 (802.11ax 2 × 2 non-vPro, supporting gigabit transfer speeds)
Intel Dual Band Wireless-AC 8265 (802.11ac 2 × 2 Wi-Fi + Bluetooth 4.2)
Intel 9260 (802.11ac 2 × 2 + Bluetooth 5 PCIe) (non-vPro)
Realtek RTL8822CE (802.11b/g/n 2 × 2 Wi-Fi + Bluetooth 5 Combo)
*Serial + PS/2 port (select models only)
*Parallel port, PCIe card
*Intel Ethernet I210-T1 PCIe x1 Gb Network Interface Card
*Card reader assembly
*Stand
*Power cord
*not illustrated
Cables and adapters
Table 2-2 Identifying cables and adapters
Description
SATA drive power cable
SATA drive power cable, RF
SATA data cable, 19 cm (7.5 inch), 2 straight ends
SATA data cable, 19 cm (7.5 inch), 2 straight ends, RF
DVI cable, 1.8 m (70.9 inch)
Internal wireless antennas
Antenna cover
Adapters
DisplayPort to HDMI 2.0
DisplayPort to VGA
DisplayPort to DVI
USB to serial
Cables and adapters 9

Table 2-2 Identifying cables and adapters (continued)
Description
USB-C to USB 3.0
USB 3.1 Type-C to DisplayPort
Mouse and keyboards
Table 2-3 Identifying mouse and keyboards
Description
Mouse
USB, healthcare, wired
USB, antimicrobial
USB/PS2 washable
USB, hardened
USB, optical
USB, laser
HP USB premium
USB/PS2 washable
USB ngerprint
Keyboards
Washable, USB PS/2
USB
PS/2, slim
USB, slim
Wireless, with mouse
USB, slim, smart card
Antimicrobial, slim
USB, slim, gray
USB, collaboration
Wireless, collaboration
USB, wired, healthcare
Premium, wireless
USB, premium
Keyboard country codes
10 Chapter 2 Illustrated parts catalog

Table 2-4 Keyboard country codes
For use in country
or region
Spare part
number
For use in country
or region
Spare part
number
For use in country
or region
Spare part
number
Belgium -18x Internationally -L3x Russia -25x
BHCSY -B4x Israel -BBx Saudi Arabia -17x
Bulgaria -26x Italy -06x South Korea -KDx
Canada (French) -12x Japan -29x Spain -07x
Czech Republic and
Slovakia
-CGx Latin America -16x Sweden -10x
Denmark -08x Netherlands -DXx Switzerland -11x
France -05x Northwest Africa -DEx Taiwan -ABx
Germany -04x Norway -09x Thailand -28x
Greece -15x People’s Republic of China -AAx Turkey -14x
Hungary -21x Portugal -13x United Kingdom -03x
India -D6x Romania -27x United States -00x
Mouse and keyboards 11

3 Routine care, SATA drive guidelines, 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.
IMPORTANT: 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.
Electrostatic discharge information
A sudden discharge of static electricity from your nger 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) might not appear to be aected at all and can work perfectly
throughout a normal cycle. The device might 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.
IMPORTANT: To prevent damage to the device when you are removing or installing internal components,
observe these precautions:
Keep components in their electrostatic-safe containers until you are ready to install them.
Before touching an electronic component, discharge static electricity by using the guidelines described in this
section.
Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.
If you remove a component, place it in an electrostatic-safe container.
Generating static electricity
The following table shows how humidity aects the electrostatic voltage levels generated by dierent
activities. A product can be degraded by 700 V.
●Dierent activities generate dierent amounts of static electricity.
●Static electricity increases as humidity decreases.
Table 3-1 Static electricity occurrence based on activity and humidity
Relative humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs (dual in-line packages) from plastic tube
7,500 V
3,000 V
400 V
400 V
15,000 V
5,000 V
800 V
700 V
35,000 V
12,000 V
6,000 V
2,000 V
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation