HP 268 Pro G1 MT User guide

Maintenance and Service Guide

HP 268 Pro G1 MT

L.P.

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 either registered trademarks or

trademarks 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 2020

Document Part Number: L86450-001

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 Product features ....................................................................................................................................................................................... 1

Standard conguration features ............................................................................................................................................ 1

Front panel components .................................................................................................................................... 2

Rear panel components ...................................................................................................................................... 3

Serial number location ........................................................................................................................................ 4

2 Illustrated parts catalog ........................................................................................................................................................................... 5

Chassis spare parts .................................................................................................................................................................. 5

Computer major components ............................................................................................................................ 5

Cables .................................................................................................................................................................... 6

Miscellaneous parts ............................................................................................................................................. 7

Drives ..................................................................................................................................................................... 7

3 Routine care, SATA drive guidelines, and disassembly preparation ................................................................................................. 8

Electrostatic discharge information ...................................................................................................................................... 8

Generating static electricity ................................................................................................................................ 8

Preventing electrostatic damage to equipment ............................................................................................. 9

Personal grounding methods and equipment ................................................................................................ 9

Grounding the work area .................................................................................................................................. 10

Recommended materials and equipment ..................................................................................................... 10

Operating guidelines .............................................................................................................................................................. 11

Routine care ............................................................................................................................................................................ 11

General cleaning safety precautions .............................................................................................................. 11

Cleaning the computer case ............................................................................................................................ 11

Cleaning the keyboard ...................................................................................................................................... 12

Cleaning the monitor ........................................................................................................................................ 12

Cleaning the mouse .......................................................................................................................................... 12

Service considerations .......................................................................................................................................................... 12

Tools and software requirements .................................................................................................................. 13

Screws ................................................................................................................................................................. 13

Cables and connectors ..................................................................................................................................... 13

Hard drives ......................................................................................................................................................... 13

Lithium coin cell battery ................................................................................................................................... 14

SATA hard drives ..................................................................................................................................................................... 14

SMART ATA drives ................................................................................................................................................................... 14

SATA hard drive cables ...................................................................................................................................... 14

v

SATA data cable ............................................................................................................................. 14

Cable management ........................................................................................................................................... 15

4 Removal and replacement procedures .............................................................................................................................................. 16

Preparation for disassembly ................................................................................................................................................ 16

Access panel ........................................................................................................................................................................... 17

Optical drive ............................................................................................................................................................................ 17

Drive cage ................................................................................................................................................................................ 19

Hard drive ................................................................................................................................................................................ 20

Front bezel .............................................................................................................................................................................. 21

Power button board ............................................................................................................................................................... 22

WLAN module ......................................................................................................................................................................... 23

M.2 solid-state drive .............................................................................................................................................................. 24

Memory module ..................................................................................................................................................................... 25

SODIMMs ............................................................................................................................................................. 25

DDR4-SDRAM SODIMMs ................................................................................................................................... 25

Populating SODIMM sockets ............................................................................................................................ 26

Replacing SODIMMs ........................................................................................................................................... 26

System fan .............................................................................................................................................................................. 28

I/O board .................................................................................................................................................................................. 29

Processor fan .......................................................................................................................................................................... 30

Heat sink .................................................................................................................................................................................. 31

Power supply .......................................................................................................................................................................... 32

System board .......................................................................................................................................................................... 34

System board callouts ...................................................................................................................................... 36

Changing from desktop to tower conguration ................................................................................................................ 36

5 Troubleshooting without diagnostics ................................................................................................................................................. 37

Safety and comfort ................................................................................................................................................................ 37

Before you call for technical support .................................................................................................................................. 37

Helpful hints ............................................................................................................................................................................ 38

Solving general problems ..................................................................................................................................................... 39

Solving power problems ....................................................................................................................................................... 42

Solving hard drive problems ................................................................................................................................................ 43

Solving audio problems ........................................................................................................................................................ 45

Solving printer problems ...................................................................................................................................................... 46

Solving keyboard and mouse problems ............................................................................................................................. 47

Solving hardware installation problems ............................................................................................................................. 48

Solving network problems .................................................................................................................................................... 49

Solving memory problems ................................................................................................................................................... 51

Solving USB ash drive problems ........................................................................................................................................ 53

vi

Solving Internet access problems ....................................................................................................................................... 53

Solving software problems .................................................................................................................................................. 54

6 Computer Setup (F10) Utility ................................................................................................................................................................ 56

Computer Setup (F10) utilities ............................................................................................................................................. 56

Using Computer Setup (F10) Utilities ............................................................................................................. 56

Computer Setup—Main .................................................................................................................................... 58

Computer Setup—Security .............................................................................................................................. 60

Computer Setup—Advanced ........................................................................................................................... 64

7 POST error messages ............................................................................................................................................................................ 70

POST numeric codes and text messages ........................................................................................................................... 70

Interpreting POST diagnostic front panel lights and audible codes ............................................................................... 74

8 Password security and resetting CMOS .............................................................................................................................................. 76

Resetting the password jumper .......................................................................................................................................... 76

Changing a Setup or Power-On password ......................................................................................................................... 77

Deleting a Setup or Power-On password ........................................................................................................................... 78

Clearing and resetting the CMOS ......................................................................................................................................... 78

9 Using HP PC Hardware Diagnostics ..................................................................................................................................................... 80

Using HP PC Hardware Diagnostics Windows (select products only) ............................................................................ 80

Downloading HP PC Hardware Diagnostics Windows ................................................................................. 80

Downloading the latest HP PC Hardware Diagnostics Windows version ............................. 81

Downloading HP Hardware Diagnostics Windows by product name or number

(select products only) ................................................................................................................... 81

Installing HP PC Hardware Diagnostics Windows ......................................................................................... 81

Using HP PC Hardware Diagnostics UEFI ............................................................................................................................ 81

Starting HP PC Hardware Diagnostics UEFI ................................................................................................... 82

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive ...................................................... 82

Downloading the latest HP PC Hardware Diagnostics UEFI version ..................................... 82

Downloading HP PC Hardware Diagnostics UEFI by product name or number (select

products only) ............................................................................................................................... 83

Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ...................................................... 83

Downloading Remote HP PC Hardware Diagnostics UEFI .......................................................................... 83

Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ...................... 83

Downloading Remote HP PC Hardware Diagnostics UEFI by product name or number ... 83

Customizing Remote HP PC Hardware Diagnostics UEFI settings ............................................................ 83

vii

10 Backing up, restoring, and recovering .............................................................................................................................................. 85

Backing up information and creating recovery media ..................................................................................................... 85

Using Windows tools ......................................................................................................................................... 85

Using the HP Cloud Recovery Download Tool to create recovery media (select products only) .......... 85

Restoring and recovery ......................................................................................................................................................... 86

Restoring, resetting, and refreshing using Windows tools ......................................................................... 86

Recovering using HP Recovery media ............................................................................................................ 86

Changing the computer boot order ................................................................................................................ 86

Using HP Sure Recover (select products only) .............................................................................................. 87

11 Power cord set requirements ............................................................................................................................................................ 88

General requirements ........................................................................................................................................................... 88

Japanese power cord requirements ................................................................................................................................... 88

Country-specic requirements ............................................................................................................................................ 89

12 Statement of memory volatility ........................................................................................................................................................ 90

Nonvolatile memory usage .................................................................................................................................................. 92

Questions and answers ......................................................................................................................................................... 94

Using HP Sure Start (select models only) .......................................................................................................................... 95

13 Specications ........................................................................................................................................................................................ 96

Index ............................................................................................................................................................................................................. 97

viii

1 Product features

Standard conguration features

Features can vary, depending on the model. For support assistance and to learn more about the hardware and

software installed on the computer model, run the HP Support Assistant utility.

NOTE: The HP 268 Pro G1 MTcan be used in a tower orientation or a desktop orientation.

Standard conguration features 1

Front panel components

Table 1-1 Front panel components and their descriptions

Item Component Item Component

1 Power button 4 USB SuperSpeed ports (2)

2 Audio-out (headphone)/Audio-in (microphone)

combo jack

5 Hard drive activity light

3 USB SuperSpeed Plus ports (2) 6 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.

2 Chapter 1 Product features

Rear panel components

Table 1-2 Rear panel components and their descriptions

Item Component Item Component

1 Audio-in jack 7 USB ports (2)

2 Serial port 8 VGA port

3 RJ-45 (network) jack 9 HDMI port

4 USB ports (2) 10 Audio-in (microphone) jack

5 Power cord connector 11 Audio-out jack for powered audio devices

6 USB SuperSpeed ports (2)

NOTE: Your computer 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 determines the behavior.

NOTE: You can disable the system board graphics by changing settings in BIOS F10 Setup.

Standard conguration features 3

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior of the

computer. Keep these numbers available for use when contacting customer service for assistance.

4 Chapter 1 Product features

2 Illustrated parts catalog

Chassis spare parts

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 Computer major components and their descriptions

Item Description

(1) System fan

(2) Processor fan

(3) Power supply:

310 W, SFF, epa 90 (GOLD)

180 W, SFF, epa 90 (GOLD)

(4) Drive cage

(5) Access cover

(6) System board (includes replacement thermal material):

Equipped with a KaiXian KX-U6780A ZX-200 2.70 GHz processor and the NetC and Windows 10 operating systems

Equipped with a KaiXian KX-U6780A ZX-200 2.70 GHz processor and the NetC operating system

Equipped with a KaiXian KX-U6780A ZX-200 2.70 GHz processor and the Windows 10 operating system

Equipped with a KaiXian KX-U6780A ZX-200 2.70 GHz processor

(7) Power button board

Chassis spare parts 5

Table 2-1 Computer major components and their descriptions (continued)

Item Description

Power button board cable

(8) WLAN 11AC+Bluetooth 4.2 RT M.2 2230 PCIe+USB WLAN module

(9) Optical drive:

DVD+/-RW SM DL 9.5-mm slim tray optical drive

DVD-ROM 9.5-mm slim tray optical drive

(10) Optical drive bezel

Optical drive blank bezel

(11) Solid-state drive:

512 GB, M.2 2280, PCIe, NVMe, value solid-state drive

256 GB, M.2 2280, PCIe, NVMe, value solid-state drive

256 GB, M.2 2280, PCIe, NVMe, SS solid-state drive with TLC

256 GB, 2.5 in, SATA-3 solid-state drive with TLC

128 GB, M.2 2280, PCIe, NVMe solid-state drive with TLC

128 GB, 2.5 in, SATA-3 solid-state drive with TLC

(12) Hard drive (7200 RPM, SATA, 3.5 in.):

2 TB

1 TB

500 GB

(13) Front bezel

(14) Chassis

Memory modules (DDR4-2666, 1.2-V):

8 GB

4 GB

Cables

Table

2-2 Cables and their descriptions

Item Description

(1) Data SATA cable

Power button board cable

Optical drive SATA cable

Optical drive/hard drive power cable

WNC M.2 USB cable

6 Chapter 2 Illustrated parts catalog

Miscellaneous parts

Table 2-3 Miscellaneous parts and their descriptions

Item Description

(1) Keyboard:

HP antimicrobial business slim keyboard for use in the People’s Republic of China

HP PS/2 slim Windows 8 keyboard for use in the People’s Republic of China

HP USB essential keyboard for use in the United States

HP USB slim Windows 8 keyboard for use in the People’s Republic of China

(2) Mouse:

HP PS/2 optical mouse

HP USB antimicrobial mouse

HP USB optical mouse

USB mouse

Drives

Table

2-4 Drives and their descriptions

Description

Hard drives, 7200 RPM, SATA, 3.5 in.:

2 TB

1 TB

500 GB

Solid-state drives:

512 GB, M.2 2280, PCIe, NVMe, value solid-state drive

256 GB, M.2 2280, PCIe, NVMe, value solid-state drive

256 GB, M.2 2280, PCIe, NVMe, SS solid-state drive with TLC

256 GB, 2.5 in, SATA-3 solid-state drive with TLC

128 GB, M.2 2280, PCIe, NVMe solid-state drive with TLC

128 GB, 2.5 in, SATA-3 solid-state drive with TLC

Chassis spare parts 7

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

15,000 V

5,000 V

800 V

700 V

35,000 V

12,000 V

6,000 V

2,000 V

8 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Table 3-1 Static electricity occurrence based on activity and humidity (continued)

Relative humidity

Removing DIPs from vinyl tray

Removing DIPs from polystyrene foam

Removing bubble pack from PCB (printed circuit board)

Packing PCBs in foam-lined box

2,000 V

3,500 V

7,000 V

5,000 V

4,000 V

5,000 V

20,000 V

11,000 V

11,500 V

14,500 V

26,500 V

21,000 V

Multiple electric components can be packaged together in plastic tubes, trays, or polystyrene foam.

NOTE: As little as 700 V can degrade a product.

Preventing electrostatic damage to equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of

sensitivity. The following packaging and grounding precautions are necessary to prevent static electricity

damage to electronic components.

● To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

● Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.

● Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.

● Place items on a grounded surface before removing them from their container.

● Always be properly grounded when touching a sensitive component or assembly.

● Avoid contact with pins, leads, or circuitry.

● Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to electronic components:

● Wrist straps are exible straps with a maximum of 1 MΩ ±10% resistance in the ground cords. To provide

proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and t

snugly into the banana plug connector on the grounding mat or workstation.

● Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most

types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with a

maximum of 1 MΩ ±10% resistance between the operator and ground.

Table

3-2 Static shielding protection levels

Static shielding protection levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

1,500

7,500

15,000

Electrostatic discharge information 9

Grounding the work area

To prevent static damage at the work area, use the following precautions:

● Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the

work surface and properly grounded tools and equipment.

● Use static-dissipative mats, foot straps, or air ionizers to give added protection.

● Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle

them only at static-free work areas.

● Turn o power and input signals before inserting and removing connectors or test equipment.

● Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.

● Keep work area free of nonconductive materials such as ordinary plastic assembly aids and polystyrene

foam.

● Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.

Recommended materials and equipment

HP recommends the following materials and equipment to prevent static electricity:

● Antistatic tape

● Antistatic smocks, aprons, or sleeve protectors

● Conductive bins and other assembly or soldering aids

● Conductive foam

● Conductive tabletop workstations with ground cord of 1 MΩ ±10% resistance

● Static-dissipative table or oor mats with hard tie to ground

● Field service kits

● Static awareness labels

● Wrist straps and footwear straps providing 1 MΩ ±10% resistance

● Material handling packages

● Conductive plastic bags

● Conductive plastic tubes

● Conductive tote boxes

● Opaque shielding bags

● Transparent metallized shielding bags

● Transparent shielding tubes

10 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Operating guidelines

To prevent overheating and to help prolong the life of 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-inch) clearance on all vented sides of

the computer and above the monitor to permit the required airow.

● Never restrict the airow into the computer by blocking any vents or air intakes. Do not place the keyboard,

with the keyboard feet down, directly against the front of the desktop unit as This also restricts airow.

● 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 airow. Be sure to unplug the computer before cleaning the air vents.

● Never operate the computer with the cover or side panel removed.

● Do not stack computers on top of each other or 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 on the monitor with any type of material.

● Install or enable power management functions of the operating system or other software, including Sleep

states.

Routine care

General cleaning safety precautions

1. Never use solvents or ammable solutions to clean the computer.

2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the

cloth on the component.

3. Always unplug the computer when cleaning with liquids or damp cloths.

4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.

5. Disconnect the keyboard before cleaning it.

6. Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the computer case

Follow all safety precautions in General cleaning safety precautions on page 11 before cleaning the computer.

To clean the computer case, follow these procedures:

● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.

● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or

swab dampened with clear water.

● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed because the alcohol evaporates

quickly and does not leave a residue.

Operating guidelines 11

● After cleaning, always wipe the unit with a clean, lint-free cloth.

● Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and

limit the airow.

Cleaning the keyboard

Follow all safety precautions in General cleaning safety precautions on page 11 before cleaning the keyboard.

To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the computer

case on page 11.

When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 11

before following these procedures:

CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the

keys.

● Visible debris underneath or between the keys might be removed by vacuuming or shaking.

● Canned, pressurized air might be used to clean debris from under the keys. Caution should be used as too

much air pressure can dislodge lubricants applied under the wide keys.

● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is

available through many electronic supply outlets.

IMPORTANT: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are

improperly removed or installed, the keyboard may not function properly.

● You can clean under a key with a swab moistened with isopropyl alcohol and squeezed out. Be careful not

to wipe away lubricants necessary for proper key functions. Use tweezers to remove any bers or dirt in

conned areas. Allow the parts to air dry before reassembly.

Cleaning the monitor

● Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for cleaning

monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into the housing and

damage a component. Never use solvents or ammable liquids on the monitor.

● To clean the monitor body follow the procedures in Cleaning the computer case on page 11.

Cleaning the mouse

Before cleaning the mouse, ensure that the power to the computer is turned o.

● Clean the mouse ball by rst removing the retaining plate and the ball from the housing. Pull out any debris

from the ball socket and wipe the ball with a clean, dry cloth before reassembly.

● To clean the mouse body, follow the procedures in Cleaning the computer case on page 11.

Service considerations

Keep these considerations in mind during the disassembly and assembly of the computer.

12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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HP 268 Pro G1 MT User guide

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