Hardware Reference Guide
HP EliteOne 800 G2 23 inch All-in-One Business PC
HP EliteOne 705 G2 23 inch All-in-One Business PC
HP ProOne 600 G2 21 inch All-in-One Business PC
HP ProOne 400 G2 20 inch All-in-One Business PC
About This Book
This guide provides basic information for upgrading this computer model.
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
2 Setup .......................................................................................................................................................... 17
Removing a recline stand ............................................................................................... 18
v
3 Hardware repair and upgrade ....................................................................................................................... 36
Appendix A Electrostatic discharge ................................................................................................................. 61
vi
Appendix B Computer operating guidelines, routine care, and shipping preparation ........................................... 62
Appendix C Accessibility ................................................................................................................................. 64
Index ............................................................................................................................................................. 65
vii
viii
1 Product features
Overview
NOTE: For the latest specifications or additional specifications on this product, go to http://www.hp.com/
go/ quickspecs/ and search for your specific display model to find the model-specific QuickSpecs.
Overview
1
Side components
Component
Component
1
2
3
4
5
6
Power button
7
Microphone/line in jack
hard disk drive activity LED
USB 3.0 port, fast-charging
USB 3.0 port
8
HP SD media card reader (optional)
Optical disc drive eject button
Optical disc drive activity LED
Tray-load optical disc drive
9
10
11
12
USB 3.0 Type C port
Headset/line out jack
Fingerprint reader (Touch model only)
EliteOne 800
3
Rear components
Component
Component
1
2
3
4
5
6
Power cable retention loop
7
DisplayPort connector
Port cover security screw hole
Serial port (optional)
8
(2) USB 3.0 ports
9
(2) USB 3.0 ports with wake-up functionality
RJ-45 Gigabit Ethernet port
Stereo audio line out
PS/2 keyboard connector (optional)
PS/2 mouse connector (optional)
Power connector
10
11
4
Chapter 1 Product features
Internal components
Component
Component
1
2
3
Optical disc drive
4
5
6
Hood sensor
Secondary hard disk drive
Primary hard disk drive
Memory
RTC Battery
EliteOne 705
Front components
Component
Component
1
2
3
Dual microphone array (optional)
4
5
6
Webcam (optional)
Webcam activity LED (with optional webcam)
Webcam privacy shutter slide switch
16:9 widescreen LED-backlit LCD display
High-performance stereo speakers
EliteOne 705
5
Side components
Component
Component
1
2
3
4
5
6
Power button
7
HP SD media card reader (optional)
hard disk drive activity LED
USB 3.0 port, fast-charging
USB 3.0 port
8
Optical disc drive eject button
Optical disc drive activity LED
Tray-load optical disc drive
9
10
11
Headset/line out jack
Microphone/line in jack
Fingerprint reader (Touch model only)
6
Chapter 1 Product features
Rear components
Component
Component
1
2
3
4
5
6
Power cable retention loop
7
DisplayPort connector
Port cover security screw hole
Serial port (optional)
8
(2) USB 3.0 ports
9
(2) USB 2.0 ports with wake-up functionality
RJ-45 Gigabit Ethernet port
Stereo audio line out
PS/2 keyboard connector (optional)
PS/2 mouse connector (optional)
Power connector
10
11
EliteOne 705
7
Internal components
Component
Component
1
2
3
Optical disc drive
4
5
6
Hood sensor
Secondary hard disk drive
Primary hard disk drive
Memory
RTC Battery
ProOne 600
Front components
Component
Component
1
2
3
Dual microphone array (optional)
4
5
6
Webcam (optional)
Webcam activity LED (with optional webcam)
Webcam privacy shutter slide switch
16:9 widescreen LED-backlit LCD display
High-performance stereo speakers
8
Chapter 1 Product features
Side components
Component
Component
1
2
3
4
5
Power button
6
Microphone/line in jack
hard disk drive activity LED
USB 3.0 port, fast-charging
USB 3.0 port
7
HP SD media card reader (optional)
Optical disc drive eject button
Optical disc drive activity LED
Tray-load optical disc drive
8
9
Headset/line out jack
10
ProOne 600
9
Rear components
Component
Component
1
2
3
4
5
6
Power cable retention loop
7
DisplayPort connector
Port cover security screw hole
Serial port (optional)
8
(2) USB 3.0 ports
9
(2) USB 3.0 ports with wake-up functionality
RJ-45 Gigabit Ethernet port
Stereo audio line out
PS/2 keyboard connector (optional)
PS/2 mouse connector (optional)
Power connector
10
11
10 Chapter 1 Product features
Internal components
Component
Component
1
2
3
Optical disc drive
hard disk drive
Hood sensor
4
5
Memory
RTC Battery
ProOne 400
Front components
Component
Component
1
2
3
Dual microphone array (optional)
4
5
6
Webcam (optional)
Webcam activity LED (with optional webcam)
Webcam privacy shutter slide switch
16:9 widescreen LED-backlit LCD display
High-performance stereo speakers
ProOne 400 11
Side components
Component
Component
1
2
3
4
5
Power button
6
Microphone/line in jack
hard disk drive activity LED
USB 3.0 port, fast-charging
USB 3.0 port
7
HP SD media card reader (optional)
Optical disc drive eject button
Optical disc drive activity LED
Tray-load optical disc drive
8
9
Headset/line out jack
10
12 Chapter 1 Product features
Rear components
Component
Component
1
2
3
4
5
6
Power cable retention loop
7
DisplayPort connector
Port cover security screw hole
Serial port (optional)
8
(2) USB 3.0 ports
9
(2) USB 2.0 ports with wake-up functionality
RJ-45 Gigabit Ethernet port
Stereo audio line out
PS/2 keyboard connector (optional)
PS/2 mouse connector (optional)
Power connector
10
11
ProOne 400 13
Labels
The labels affixed to the computer provide information you may need when you troubleshoot system
problems or travel internationally with the computer.
IMPORTANT: All labels described in this section will be located under the stand or affixed to the bottom of
the computer.
1. Microsoft® Certificate of Authenticity label (select models only prior to Windows 8)—Contains the
Windows Product Key. You may need the Product Key to update or troubleshoot the operating system.
HP platforms preinstalled with Windows 8 or Windows 8.1 do not have the physical label, but have a
Digital Product Key electronically installed.
NOTE: This Digital Product Key is automatically recognized and activated by Microsoft Operating
Systems on a reinstall of the Windows 8 or Windows 8.1 operating system with HP-approved recovery
methods.
2. Service label—Provides important information to identify your computer. When contacting support,
you will probably be asked for the serial number, and possibly for the product number or the model
number. Locate these numbers before you contact support.
Component
(1)
(2)
(3)
Serial number
Product number
Warranty period
3. Serial number label
16 Chapter 1 Product features
2 Setup
Overview
Set up the computer in the following order:
●
Attach a stand. See Attaching and removing a stand on page 18
Or
Attach the computer to a mounting fixture. See Attaching the computer to a mounting fixture
●
●
●
●
●
●
●
The mouse and keyboard are synchronized at the factory. Should you ever need to synchronize the
Overview 17
Attaching and removing a stand
Three stands are available for the computer:
●
●
●
Attaching and removing a recline stand
Attaching a recline stand
To install the stand:
1. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
2. Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the
computer (1).
3. Lower the stand onto the computer and press down until it clicks into place (2).
Removing a recline stand
To remove the stand:
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5. Remove the rear port cover, if it is installed. For instructions, see Removing the rear port cover
6. Press the release latch under the stand (1).
18 Chapter 2 Setup
7. Lift the stand up (2), and then pull the stand hooks out of the computer (3).
Attaching and removing a adjustable-height stand
Attaching a adjustable-height stand
To install the stand:
1. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
2. Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the
computer (1).
3. Lower the stand onto the computer (2) and press down until it clicks into place (3).
Attaching and removing a stand 19
Removing a adjustable-height stand
To remove the stand:
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5. Remove the rear port cover, if it is installed. For instructions, see Removing the rear port cover
6. Press the release latch under the stand (1).
7. Lift the stand up (2), and then pull the stand hooks out of the computer (3).
Attaching and removing an easel stand
Attaching an easel stand
To install the stand:
1. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
2. Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the
computer (1).
20 Chapter 2 Setup
3. Lower the stand onto the computer and press down until it clicks into place (2).
Removing an easel stand
To remove the stand:
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5. Remove the rear port cover, if it is installed. For instructions, see Removing the rear port cover
6. Press the release latch under the stand (1).
Attaching and removing a stand 21
7. Lift the stand up (2), and then pull the stand hooks out of the computer (3).
22 Chapter 2 Setup
Attaching the computer to a mounting fixture
The computer can be attached to a wall, swing arm, or other mounting fixture.
NOTE: This apparatus is intended to be supported by UL or CSA Listed wall mount bracket.
1. Press the supplied VESA trim plate onto the VESA opening until it snaps into place.
2. To attach the computer to a swing arm (sold separately), insert the four 20 mm screws that are supplied
with the computer 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, four 4 mm, 0.7 pitch, and 20 mm long screws are
required. These screws are supplied with the computer. Longer screws must not be used because they
may damage the computer. 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 and other cables provided with the computer.
To attach the computer to other mounting fixtures, follow the instructions included with the mounting
fixture to ensure that the computer is safely attached.
Attaching the computer to a mounting fixture 23
Connecting and disconnecting cables
Connecting cables
1. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
2. If the rear port cover is installed, remove the cover.
3. Route the power and all peripheral cables through the opening in the base of the stand.
4. Connect the peripheral cables to the appropriate ports.
5. Connect the AC power cord to the power connector on the rear of the computer.
24 Chapter 2 Setup
6. If desired, you may use a wire tie (not provided) through the power cable retention loop to secure the
power cord.
If your computer model is a ProOne 400, you may further secure the plug by pressing it into the slot
below the power connector until it is locked into place.
Connecting a display
The DisplayPort connector on the rear of the computer allows you to connect a display to the computer.
If you are adding a display that has a DisplayPort connector, then no DisplayPort video adapter is required. If
you are adding a display that does not have a DisplayPort connector, you can purchase a DisplayPort video
adaptor from HP for your configuration.
DisplayPort adapters and video cables are purchased separately. HP offers the following adapters:
●
●
●
DisplayPort to VGA adapter
DisplayPort to DVI adapter
DisplayPort to HDMI adapter
To connect a display:
Connecting and disconnecting cables 25
1. Turn off power to the computer and the display that you are connecting to the computer.
2. Remove the rear port cover on the computer.
3. If your display has a DisplayPort connector, connect a DisplayPort cable directly between the
DisplayPort connector on the rear of the computer and the DisplayPort connector on the display.
4. If your display does not have a DisplayPort connector, connect a DisplayPort video adapter to the
DisplayPort connector of the computer. Then connect a cable (VGA, DVI. or HDMI, depending on your
application) between the adapter and a display.
NOTE: When a DisplayPort adaptor is used, the rear port cover cannot be installed unless a
DisplayPort extender cable is used in conjunction with the adaptor.
5. Replace the rear port cover on the computer.
6. Turn on power to the computer and the display.
NOTE: Use the graphics card software or the Windows Display Settings to configure the display as a
mirrored image of the computer display or an extension of the computer display.
Disconnecting cables
1. You may need to remove the cable lock, if one is installed on the rear of the computer.
2. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
3. If the rear port cover is installed, remove the cover.
4. Disconnect the cables from the ports.
26 Chapter 2 Setup
Removing and installing the rear port cover
Removing the rear port cover
1. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
2. If the security lock screw is secured, unscrew it with a T15 tamper-resistant Torx security screwdriver.
3. Press the two tabs toward each other to disengage the port cover from the chassis (1).
4. Pull the port cover toward the bottom and off the computer (2).
Installing the rear port cover
1. Be sure that all cables are connected.
2. Hold the port cover parallel to the computer and align the two tabs on the port cover with the slots in
the top of the rear port compartment.
3. Slide the port cover in until the tabs click into place (1).
Removing and installing the rear port cover 27
4. Press the latches out to lock the port cover into place (2).
5. You may prevent access to internal components and ports by securing the rear port cover. Use a T15
tamper-resistant Torx screwdriver to screw the captive screw into the chassis.
28 Chapter 2 Setup
Positioning the computer
This computer may be shipped with a recline stand, a tilt/swivel and adjustable-height stand, or an easel
stand.
●
●
●
Adjusting the recline stand
CAUTION: Use caution when reclining a computer if a cable lock is installed. The cable or the lock may
interfere with the rotation or the angle of recline.
This stand allows you to position the computer from a reclining position to an upright position.
To adjust the computer position from the reclining position to an upright position:
1. Grasp both top and bottom of the computer and lift the computer to the highest point.
2. Press the bottom of the computer down and adjust to the appropriate tilt.
To adjust the computer position from an upright position to the reclining position:
1. Lift the bottom of the computer until it is level with the top.
2. Grasp both top and bottom of the computer and press down until the computer is in the desired
position.
Positioning the computer 29
Adjusting the adjustable-height stand
CAUTION: Use caution when rotating or reclining a computer if a cable lock is installed. The cable or the lock
may interfere with the rotation or the angle of recline.
This stand allows you to:
●
●
●
Tilt the computer from –5° to 20° from the desktop
Adjust the computer height within a range of 110 mm (4.3 in)
Rotate the computer from the landscape to portrait view
To tilt the computer, grasp the top and bottom of the computer and adjust to the appropriate tilt.
To change the height of the computer, grasp both sides of the computer and lift or lower to the appropriate
height.
To recline the computer:
IMPORTANT: In portrait mode, the recline is limited if a cable lock is installed.
1. Move the stand next to the edge of the desk.
30 Chapter 2 Setup
2. Grasp both sides of the computer and lower the computer to your preferred position.
3. Grasp the top and bottom of the computer and tilt the computer to the desired position.
CAUTION: When changing the computer orientation between landscape and portrait, be sure that the HP
logo on the front of the computer is either on the bottom or the right side.
To change from landscape to portrait view:
1. Lift the computer to the highest position to provide clearance.
2. Grasp the upper right and lower left corners of the computer and lift the lower left corner until the
computer is in the portrait position.
To change from portrait to landscape view:
1. Lift the computer to the highest position to provide clearance.
2. Grasp the upper left and lower right corners of the computer and lift the lower right corner until the
computer is in the landscape position.
Positioning the computer 31
Adjusting the easel stand
This adjustable stand allows you to change the computer tilt from 10 degrees to 70 degrees to set it to a
comfortable eye level.
CAUTION: Hold the computer steady when adjusting the easel to avoid tipping the computer.
Grasp the sides of the computer and press the top of the computer down to open the stand and increase the
tilt. Raise the top of the computer up to bring the stand in and decrease the tilt.
Installing a cable lock
A cable lock is a key lock device that has a wire cable attached. You attach one end of the cable to your desk
(or other stationary object) and the other end of the cable to the cable lock slot on the computer. Secure the
cable lock with the key.
CAUTION: Use caution when rotating or reclining a computer if a cable lock is installed. The cable or the lock
may interfere with the rotation or the angle of recline.
32 Chapter 2 Setup
Connecting and disconnecting power
Connecting power
1. If you have an EliteOne 800, EliteOne 705, or ProOne 600, plug the AC power plug into a AC outlet.
2. If you have a ProOne 400:
a. Connect the female end of the power cord to the power adapter (1).
b. Plug the AC power plug into a AC outlet (2).
3. Press the power button on the side of the computer to turn it on.
Disconnecting power
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
Connecting and disconnecting power 33
Synchronizing the optional wireless keyboard and mouse
The mouse and keyboard are synchronized at the factory. If they do not work, remove and replace the
batteries. If the mouse and keyboard are still not synchronized, then follow this procedure to manually re-
synchronize the pair.
1.
2.
3.
34 Chapter 2 Setup
4.
5.
NOTE: If the mouse and keyboard still do not work, then remove and replace the batteries. If the mouse
and keyboard are still not synchronized, then synchronize the keyboard and mouse again.
Synchronizing the optional wireless keyboard and mouse 35
3 Hardware repair and upgrade
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 AC power cord from the AC 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 AC power cord 3 pin attachment plug. The 3 pin attachment plug is an important safety
feature.
Plug the AC power cord in a grounded (earthed) AC outlet that is easily accessible at all times.
For your safety, do not place anything on AC power cords or cables. Arrange them so that no one may
accidentally step on or trip over them. Do not pull on a cord or cable. When unplugging from the AC outlet,
grasp the cord by the plug.
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
WARNING! Computers that are inappropriately situated on dressers, bookcases, shelves, desks, speakers,
chests, or carts may fall over and cause personal injury.
Care should be taken to route all cords and cables connected to the computer so that they cannot be pulled,
grabbed, or tripped over.
WARNING! Energized and moving parts inside.
Disconnect power to the equipment before removing any access panels.
Replace and secure all access panels before reenergizing the equipment.
CAUTION: Static electricity can damage the electrical components of the computer or optional equipment.
Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a
When the computer is plugged into an AC power source, voltage is always applied to the system board. You
must disconnect the AC power cord from the power source before opening the computer to prevent damage
to internal components.
Additional information
For more information on removing and replacing hardware components, the Computer Setup utility, and
troubleshooting, refer to the Maintenance and Service Guide (available in English only) for your computer
36 Chapter 3 Hardware repair and upgrade
Removing batteries from the optional wireless keyboard or
mouse
NOTE: The wireless keyboard and mouse are optional components.
To remove batteries from the wireless keyboard, remove the battery door on the underside of the keyboard
(1) and lift the batteries out of the battery compartment (2).
To remove batteries from the wireless mouse, remove the battery door on the underside of the mouse (1)
and lift the batteries out of the battery compartment (2).
Removing batteries from the optional wireless keyboard or mouse 37
Removing and installing memory
The computer comes with small outline dual inline memory modules (SODIMMs).
SODIMMs
The memory sockets on the system board can be populated with up to two industry-standard SODIMMs.
These memory sockets are populated with at least one preinstalled SODIMM.
SODIMM specifications
For proper system operation, the SODIMMs must meet the following qualifications:
EliteOne 800 and ProOne 600
EliteOne 705
ProOne 400
SODIMM
1.2 volt DDR4-SDRAM SODIMMs
1.5 volt DDR3-SDRAM SODIMMs
1.35 volt DDR3L-SDRAM SODIMMs
Compliance
unbuffered non-ECC PC4-10600
DDR4-2133 MHz-compliant
unbuffered non-ECC PC3-10600
DDR3-1600 MHz-compliant
unbuffered non-ECC PC3-10600
DDR3-1600 MHz-compliant
Pins
industry-standard 260 pin
industry-standard 204 pin
industry-standard 204 pin
containing the mandatory Joint
Electronic Device Engineering
Council (JEDEC) specification
containing the mandatory Joint
Electronic Device Engineering
Council (JEDEC) specification
containing the mandatory Joint
Electronic Device Engineering
Council (JEDEC) specification
Support
Slots
support CAS latency 11 DDR4 2133
MHz (11-11-11 timing)
support CAS latency 11 DDR3 1600
MHz (11-11-11 timing)
support CAS latency 11 DDR3 1600
MHz (11-11-11 timing)
2
2
2
Maximum
Memory
32 GB
16 GB
16 GB
Supported
Note
1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies single-sided and double-sided SODIMMs
The system will not operate properly if you install unsupported SODIMM memory. SODIMMs constructed with x8
and x16 SDRAMs are supported; SODIMMs constructed with x4 SDRAMS are not supported.
HP offers upgrade memory for this computer and advises that the consumer purchase it to avoid
compatibility issues with unsupported third-party memory.
38 Chapter 3 Hardware repair and upgrade
Populating SODIMM sockets
The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending
on how the SODIMMs are installed. Refer to the following table to identify the SODIMM channel locations.
Location
System board label
SODIMM1
Channel
Lower Socket
Upper Socket
Channel B
Channel A
SODIMM3
●
●
The system will operate in single channel mode if the SODIMM sockets are populated in one channel
only.
The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not equal to
the memory capacity of the SODIMM in Channel B. In flex 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.
●
●
The system will operate in a higher-performing dual channel mode if the memory capacity of the
SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B.
In any mode, the maximum operational speed is determined by the slowest SODIMM in the system.
Installing SODIMMs
There are two memory sockets on the system board. To remove or install memory modules:
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
CAUTION: You must disconnect the AC 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.
4. Remove/disengage any security devices that prohibit opening the computer.
5. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
6. Remove the rear port cover.
7. Disconnect cables connected to the computer.
8. Remove the stand.
Removing and installing memory 39
9. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the left to release the access panel.
10. Slide the access panel latches toward each other (1).
11. Lift the access panel off the computer (2).
40 Chapter 3 Hardware repair and upgrade
12. If your computer model is a ProOne 400, remove the 4 screws securing the electromagnetic
interference (EMI) shield to the chassis.
13. Push the EMI shield latch toward the center of the computer (1) to release the EMI shield, and then lift
the shield off the computer (2).
Removing and installing memory 41
14. To remove a memory module, press outward on the two latches on each side of the SODIMM (1), then
pull the SODIMM out of the socket (2).
15. To install a memory module, slide the SODIMM into the socket at approximately a 30° angle (1), then
press the SODIMM down (2) so that the latches lock it in place.
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
42 Chapter 3 Hardware repair and upgrade
16. Be sure that the cables around the EMI shield are out of the way and will not be pinched by the EMI
shield.
17. Engage the three tabs on the right side of the EMI shield with the slots in the computer (1), and then
press the left side of the shield down until the latch engages (2).
Removing and installing memory 43
18. If your computer model is a ProOne 400, screw in 4 screws to secure the EMI shield to the chassis.
19. To replace the access panel, align the latches with the slots in the rear port compartment. Set the
access panel down (1) and press in the tabs around all sides of the panel until it is in place.
20. Push the latches toward the sides of the computer to lock the access panel in place (2).
44 Chapter 3 Hardware repair and upgrade
21. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the right to secure the access panel.
22. Install the stand.
23. Connect all cables to the computer.
24. Install the rear port cover.
25. Lock any security devices that were disengaged when the access panel was removed.
26. Place the computer in the upright position.
27. Plug the AC power plug into a AC outlet.
28. Turn on the computer. The computer automatically recognizes the additional memory when you turn on
the computer.
Removing and installing memory 45
Replacing the RTC Battery
The RTC Battery is located on the system board on the lower right side of the fan. The battery that comes
with the computer provides power to the real-time clock. When replacing the battery, use a battery
equivalent to the battery originally installed in the computer. The computer comes with a 3 V lithium coin cell
battery.
WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and
burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140°F).
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Replace the battery only with the HP spare designated for this product.
CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the
battery is removed or replaced, the CMOS settings will be cleared.
Static electricity can damage the electronic components of the computer or optional equipment. Before
beginning these procedures, be sure that you are discharged of static electricity by briefly touching a
grounded metal object.
NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall
socket. The lithium battery is only used when the computer is NOT connected to AC power.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4. Remove/disengage any security devices that prohibit opening the computer.
5. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
6. Remove the rear port cover.
7. Disconnect cables connected to the computer.
8. Remove the stand.
46 Chapter 3 Hardware repair and upgrade
9. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the left to release the access panel.
10. Slide the access panel latches toward each other (1).
11. Lift the access panel off the computer (2).
Replacing the RTC Battery 47
12. If your computer model is a ProOne 400, remove the 4 screws securing the EMI shield to the chassis.
13. Push the EMI shield latch toward the center of the computer (1) to release the EMI shield, and then lift
the shield off the computer (2).
14. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the
battery. When the battery pops up, lift it out (1).
48 Chapter 3 Hardware repair and upgrade
15. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the
positive side up. Push the other edge down until the clamp snaps over the other edge of the battery (2).
16. Be sure that the cables around the electromagnetic interference shield are out of the way and will not
be pinched by the EMI shield.
Replacing the RTC Battery 49
17. Engage the three tabs on the right side of the EMI shield with the slots in the computer (1), and then
press the left side of the shield down until the latch engages (2).
18. If your computer model is a ProOne 400, screw in 4 screws to secure the EMI shield to the chassis.
19. To replace the access panel, align the latches with the slots in the rear port compartment. Set the
access panel down (1) and press in the tabs around all sides of the panel until it is in place.
50 Chapter 3 Hardware repair and upgrade
20. Push the latches toward the sides of the computer to lock the access panel in place (2).
21. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the right to secure the access panel.
22. Install the stand.
23. Connect all cables to the computer.
24. Install the rear port cover.
25. Lock any security devices that were disengaged when the access panel was removed.
26. Place the computer in the upright position.
27. Plug the AC power plug into a AC outlet.
Replacing the RTC Battery 51
28. Turn on the computer.
29. Reset the date and time, your passwords, and any special system setups using Computer Setup.
Replacing drives
Replacing a hard disk drive
The hard disk drive is located on the left side of the computer.
One 2.5 inch primary hard disk drive (HDD) is installed in the computer. Some models may have a secondary
2.5 inch HDD installed on top of the optical disc drive (ODD).
Removing a 2.5 inch hard disk drive
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC 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 AC power cord to avoid damage
to the internal components of the computer.
4. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5. Remove/disengage any security devices that prohibit opening the computer.
6. Remove the rear port cover.
7. Disconnect cables connected to the computer.
8. Remove the stand.
52 Chapter 3 Hardware repair and upgrade
9. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the left to release the access panel.
10. Slide the access panel latches toward each other (1).
11. Lift the access panel off the computer (2).
12. Disconnect the power and data cables from the HDD.
13. Pull the HDD cage latch away from the 2.5 inch HDD to release the drive (1).
Replacing drives 53
14. Slide the HDD toward the latch and lift the HDD out of the drive cage (2).
15. Remove the four mounting screws from the 2.5 inch HDD. Be sure to keep the screws together with the
blue rubber grommets to use to install a replacement drive.
54 Chapter 3 Hardware repair and upgrade
Installing a 2.5 inch hard disk drive
1. Fasten four mounting screws with grommets onto the 2.5 inch HDD.
2. Position the 2.5 inch drive above the drive cage with the connectors facing the power and data cables
next to the drive cage.
3. Place the 2.5 inch HDD into the drive cage and slide it toward the cables until the cage snaps into place.
4. Connect the power and data cables to the HDD.
5. To replace the access panel, align the latches with the slots in the rear port compartment. Set the
access panel down (1) and press in the tabs around all sides of the panel until it is in place.
Replacing drives 55
6. Push the latches toward the sides of the computer to lock the access panel in place (2).
7. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the right to secure the access panel.
8. Install the stand.
9. Connect all cables to the computer.
10. Install the rear port cover.
11. Lock any security devices that were disengaged when the access panel was removed.
12. Place the computer in the upright position.
13. Plug the AC power plug into a AC outlet.
14. Turn on the computer.
56 Chapter 3 Hardware repair and upgrade
Replacing the optical disc drive
The ODD is located above the HDD on the left side of the computer (when viewed from behind).
1. Remove all removable media, such as optical discs or USB flash drives, from the computer.
2. Turn off the computer properly through the operating system, then turn off any external devices.
3. Disconnect the AC 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 AC power cord to avoid damage
to the internal components of the computer.
4. Remove/disengage any security devices that prohibit opening the computer.
5. Place the computer face down on a soft flat surface. HP recommends that you set down a blanket,
towel, or other soft cloth to protect the bezel and screen surface from scratches or other damage.
6. Remove the rear port cover.
7. Disconnect cables connected to the computer.
8. Remove the stand.
9. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the left to release the access panel.
10. Slide the access panel latches toward each other (1).
Replacing drives 57
11. Lift the access panel off the computer (2).
12. Push and hold the tab (1) while pushing in the latch (2) at the back of the ODD enclosure and slide the
drive (3) out of the chassis.
13. Pull the latch off the ODD.
58 Chapter 3 Hardware repair and upgrade
14. Align the three pins on the latch with the holes in the new ODD and press the latch firmly onto the new
drive.
NOTE: You must reuse the latch removed from the old ODD.
15. Align the new ODD with the opening in the side of the computer. Push the drive in firmly until it snaps
into place.
NOTE: The ODD can be installed in only one way.
16. To replace the access panel, align the latches with the slots in the rear port compartment. Set the
access panel down (1) and press in the tabs around all sides of the panel until it is in place.
Replacing drives 59
17. Push the latches toward the sides of the computer to lock the access panel in place (2).
18. If your computer model is a ProOne 400, use a flat blade or Torx screwdriver to turn the access panel
screws one quarter turn to the right to secure the access panel.
19. Install the stand.
20. Connect all cables to the computer.
21. Install the rear port cover.
22. Lock any security devices that were disengaged when the access panel was removed.
23. Place the computer in the upright position.
24. Plug the AC power plug into a AC outlet.
25. Turn on the computer.
60 Chapter 3 Hardware repair and upgrade
A Electrostatic discharge
A discharge of static electricity from a finger or other conductor may damage system boards or other static-
sensitive devices. This type of damage may reduce the life expectancy of the device.
Preventing electrostatic damage
To prevent electrostatic damage, observe the following precautions:
●
●
●
●
●
Avoid hand contact by transporting and storing products in static-safe containers.
Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
Place parts on a grounded surface before removing them from their containers.
Avoid touching pins, leads, or circuitry.
Always be properly grounded when touching a static-sensitive component or assembly.
Grounding methods
There are several methods for grounding. Use one or more of the following methods when handling or
installing electrostatic-sensitive parts:
●
Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis. Wrist
straps are flexible straps with a minimum of 1 megohm +/- 10 percent resistance in the ground cords.
To provide proper ground, wear the strap snug against the skin.
●
Use heelstraps, toestraps, or bootstraps at standing workstations. Wear the straps on both feet when
standing on conductive floors or dissipating floor mats.
●
●
Use conductive field service tools.
Use a portable field service kit with a folding static-dissipating work mat.
If you do not have any of the suggested equipment for proper grounding, contact an HP authorized dealer,
reseller, or service provider.
NOTE: For more information on static electricity, contact an HP authorized dealer, reseller, or service
provider.
Preventing electrostatic damage 61
B Computer operating guidelines, routine
care, and shipping preparation
Computer operating guidelines and routine care
Follow these guidelines to properly set up and care for the computer:
●
●
Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
Operate the computer on a sturdy, level surface. Leave a 10.2 cm (4 in) clearance on all vented sides of
the computer to permit the required airflow.
●
●
●
Never restrict the airflow into the computer by blocking any vents or air intakes.
Never operate the computer with any of the access panels removed.
Do not place computers so near each other that they are subject to each other’s recirculated or
preheated air.
●
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be
provided on the enclosure, and the same operating guidelines listed above will still apply.
●
●
●
Keep liquids away from the computer and keyboard.
Never cover the ventilation slots with any type of material.
Install or enable power management functions of the operating system or other software, including
sleep states.
●
When cleaning the computer turn off power to the computer and unplug the AC power cord before you
do any of the following:
◦
◦
◦
Wipe the exterior of the computer with a soft, damp cloth as needed. Using cleaning products may
discolor or damage the finish.
Do not use cleaners that contain any petroleum based materials such as benzene, thinner, or any
volatile substance to clean the screen or cabinet. These chemicals may damage the computer.
Wipe the screen with a soft, clean antistatic cloth. For more difficult cleaning situations, use a
50/50 mix of water and Isopropyl alcohol. Spray the cleaner onto a cloth and use the damp cloth
to gently wipe the screen surface. Never spray the cleaner directly on the screen surface. It may
run behind the bezel and damage the electronics.
◦
Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign
matter can block the vents and limit the airflow.
62 Appendix B Computer operating guidelines, routine care, and shipping preparation
Optical disc drive precautions
Be sure to observe the following guidelines while operating or cleaning the ODD.
●
●
Do not move the drive during operation. This may cause it to malfunction during reading.
Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the unit.
If the temperature suddenly changes while the drive is on, wait at least one hour before you turn off the
power. If you operate the unit immediately, it may malfunction while reading.
●
Avoid placing the drive in a location that is subject to high humidity, extreme temperatures, mechanical
vibration, or direct sunlight.
CAUTION: If any object or liquid falls into the drive, immediately unplug the computer and have it checked
by an authorized HP service provider.
Shipping preparation
Follow these suggestions when preparing to ship the computer:
1. Back up the HDD files on optical media or external USB drives. Be sure that the backup media is not
exposed to electrical or magnetic impulses while stored or in transit.
NOTE: The HDD locks automatically when the system power is turned off.
2. Remove and store all removable media.
3. Turn off the computer and external devices.
4. Disconnect the AC power cord from the AC outlet, then from the computer.
5. Disconnect the system components and external devices from their power sources, then from the
computer.
NOTE: Be sure that all boards are seated properly and secured in the board slots before shipping the
computer.
6. Pack the system components and external devices in their original packing boxes or similar packaging
with sufficient packing material to protect them.
Optical disc drive precautions 63
C Accessibility
HP designs, produces, and markets products and services that can be used by everyone, including people
with disabilities, either on a stand-alone basis or with appropriate assistive devices.
Supported assistive technologies
HP products support a wide variety of operating system assistive technologies and can be configured to work
with additional assistive technologies. Use the Search feature on your device to locate more information
about assistive features.
NOTE: For additional information about a particular assistive technology product, contact customer
support for that product.
Contacting support
We are constantly refining the accessibility of our products and services and welcome feedback from users. If
you have an issue with a product or would like to tell us about accessibility features that have helped you,
please contact us at (888) 259-5707, Monday through Friday, 6 a.m. to 9 p.m. Mountain Time. If you are deaf
or hard-of-hearing and use TRS/VRS/WebCapTel, contact us if you require technical support or have
accessibility questions by calling (877) 656-7058, Monday through Friday, 6 a.m. to 9 p.m. Mountain Time.
64 Appendix C Accessibility
Index
Symbols/Numerics
400 11
internal, 705
internal, 800
rear components
side components
F
features
keyboard 15
overview
rear, 705
rear, 800
600
front components
side, 600
side, 705
side, 800
G
side components
connecting
H
705
hard disk drive
front components
internal components
rear components
side components
cables 24
display 25
replacing 52
self-encrypting 52
types 52
D
800
disconnecting
front components
cables 26
internal components
rear components
side components
DisplayPort video adapter,
connecting 25
drive
I
installing
A
accessibility 64
battery 46
display 25
memory 39
adjustable-height stand
adjustment 30
types 52
attaching 19
removing 20
E
K
B
easel stand
keyboard
adjustment 32
attaching 20
removing 21
electrostatic discharge, preventing
damage 61
EliteOne 705
front components
internal components
features 15
C
cables 24
connecting 24
disconnecting 26
components
L
labels
location 16
Microsoft Certificate of
Authenticity 16
service 16
rear components
side components
EliteOne 800
front, 600
front, 705
front, 800
front components
internal components
Index 65
lock
cable 32
recline stand
adjustment 29
attaching 18
removing 18
removing
M
memory
installing 39
rotation 30
maximum 38
removing 39
slots 38
specifications 38
Microsoft Certificate of Authenticity
label 16
mouse
S
security
SODIMM
O
identification 39
optical disc drive
precautions 63
replacing 57
location 39
specifications 38
stands 18
synchronizing wireless keyboard and
mouse 34
P
installing 27
removing 27
power
connecting 33
disconnecting 26, 33
power cord
connecting 24
disconnecting 26
product name and number,
computer 16
V
W
ProOne 600
front components
side components
R
installing 27
removing 27
66 Index
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