HP EliteDesk 800 Operating and maintenance manual

HP Desktop Mini
Hardware Reference Guide

© Copyright 2017 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: January 2017
Document Part Number: 913329-001
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 seller.
For any further information or to request a full
refund of the price of the computer, please
contact your 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 panel components (EliteDesk 800 and ProDesk 600) ................................................................................. 2
Front panel components (ProDesk 400) ............................................................................................................... 3
Rear panel components (EliteDesk 800, and ProDesk 600) ................................................................................. 4
Rear panel components (ProDesk 400) ................................................................................................................. 5
Serial number location .......................................................................................................................................... 6
2 Setup ............................................................................................................................................................ 7
Changing from desktop to tower orientation ........................................................................................................ 7
Attaching the computer to a mounting xture ..................................................................................................... 9
Installing a security cable .................................................................................................................................... 10
Connecting the power cord .................................................................................................................................. 10
3 Hardware upgrades ...................................................................................................................................... 11
Serviceability features ......................................................................................................................................... 11
Warnings and cautions ........................................................................................................................................ 11
Removing the computer access panel ................................................................................................................. 12
Replacing the computer access panel ................................................................................................................. 14
Upgrading system memory ................................................................................................................................. 15
Memory module specications ......................................................................................................... 15
Populating memory module slots .................................................................................................... 16
Installing a memory module ............................................................................................................. 17
Removing a hard drive ......................................................................................................................................... 20
Installing a hard drive .......................................................................................................................................... 21
Replacing an M.2 PCIe solid-state drive .............................................................................................................. 22
Replacing the WLAN module ............................................................................................................................... 27
Installing an external antenna ............................................................................................................................ 32
Replacing the battery .......................................................................................................................................... 37
Synchronizing the optional wireless keyboard and mouse ................................................................................ 42
v

Appendix A Electrostatic discharge .................................................................................................................. 44
Preventing electrostatic damage ........................................................................................................................ 44
Grounding methods ............................................................................................................................................. 44
Appendix B Computer operating guidelines, routine care and shipping preparation ............................................. 45
Computer operating guidelines and routine care ............................................................................................... 45
Shipping preparation ........................................................................................................................................... 46
Appendix C Accessibility ................................................................................................................................. 47
Supported assistive technologies ....................................................................................................................... 47
Contacting support .............................................................................................................................................. 47
Index ............................................................................................................................................................. 48
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 tower stand is
sold separately.
Standard conguration features 1

Front panel components (EliteDesk 800 and ProDesk 600)
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Item Icon Component Item Icon Component
1 USB Type-C SuperSpeed port with HP Sleep and
Charge*
5Audio-out (headset)/Audio-in (microphone)
combo jack
2USB 3.x port 6 Drive light
3USB 3.x port with HP Sleep and Charge* 7Dual-state power button
4Headphone jack
*When the computer is on, the USB port connects a USB device, provides high-speed data transfer, and even when the computer is o,
charges products such as a cell phone, camera, activity tracker, or smartwatch.
NOTE: The drive light is normally white when the power is on. If it is ashing red, there is a problem with the computer and the drive
light is displaying a diagnostic code. Refer to the Maintenance and Service Guide to interpret the code.
2 Chapter 1 Product features

Front panel components (ProDesk 400)
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Item Icon Component Item Icon Component
1USB 3.x port 4Audio-out (headset)/Audio-in (microphone)
combo jack
2USB 3.x port with HP Sleep and Charge* 5 Drive light
3Headphone jack 6Dual-state power button
*When the computer is on, the USB port connects a USB device, provides high-speed data transfer, and even when the computer is o,
charges products such as a cellphone, camera, activity tracker, or smartwatch.
NOTE: The drive light is normally white when the power is on. If it is ashing red, there is a problem with the computer and the drive
light is displaying a diagnostic code. Refer to the Maintenance and Service Guide to interpret the code.
Front panel components (ProDesk 400) 3

Rear panel components (EliteDesk 800, and ProDesk 600)
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Item Icon Component Item Icon Component
1 Antenna cover 7DisplayPort (optional)
NOTE: The DisplayPort is optional and may
be replaced with one of the following ports:
HDMI, VGA, USB Type-C alternate mode, or
serial port.
2 Cover lock switch 8USB 3.x ports (2) (black)
3Security cable slot 9USB 3.x ports (2) (black)
4 External antenna connector 10 RJ-45 (network) jack
5 Padlock loop 11 Power connector
6Dual-Mode DisplayPort (D++) (2)
4 Chapter 1 Product features

Rear panel components (ProDesk 400)
NOTE: Your computer model may look slightly dierent from the illustration in this section.
Item Icon Component Item Icon Component
1 Antenna cover 7Serial port (black)
2 Thumbscrew 8DisplayPort (optional)
NOTE: The DisplayPort is optional and
may be replaced with one of the following
ports: HDMI, VGA, or serial port.
3Security cable slot 9USB 3.x ports (2) (black)
4 External antenna connector 10 USB 2.0 ports (2) (black)
5 Padlock loop 11 RJ-45 (network) jack
6Dual-Mode DisplayPort (D++) 12 Power connector
Rear panel components (ProDesk 400) 5

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 support for assistance.
6 Chapter 1 Product features

2 Setup
Changing from desktop to tower orientation
The computer can be used in a tower orientation with an optional tower stand that can be purchased from HP.
NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower
stand.
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. To avoid damage to the internal components of the
computer, you must disconnect the power cord.
5. Orient the computer so that its right side is facing up and place the computer in the optional stand.
6. Reconnect the power cord and any external devices, then turn on the computer.
Changing from desktop to tower orientation 7

NOTE: Be sure 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.
8 Chapter 2 Setup

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 position the computer right-side
up on a stable surface.
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.
Attaching the computer to a mounting xture 9

Installing a security cable
The security cable 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 to the power connector on the rear of the computer (3).
10 Chapter 2 Setup

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 44 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.
Serviceability features 11

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. Then position the computer right-
side up on a stable surface.
6. Depending on the computer model, slide the cover lock switch (1) to the left , or loosen the thumbscrew
(1) on the rear panel as shown in the following images.
NOTE: If necessary, a Torx T-15 screwdriver may be used to loosen the thumbscrew.
12 Chapter 3 Hardware upgrades

7. Slide the access panel forward, and lift it o the computer (2).
NOTE: Your computer model may look slightly dierent from the illustrations in this section.
Removing the computer access panel 13

Replacing the computer access panel
On computer models with a cover lock switch on the rear panel, place the access panel on the computer and
slide it back.
NOTE: When the access panel slides into place, the cover lock switch automatically locks.
On computer models with a thumbscrew on the rear panel:
1. Place the access panel on the computer and slide it back (1).
2. When the access panel slides into place, tighten the thumbscrew (2) to secure the access panel in place
as shown in the following image.
NOTE: Your computer model may look slightly dierent from the illustration in this section.
14 Chapter 3 Hardware upgrades