Hp 400 G4 User Manual

Maintenance & Service Guide

HP ProOne 400 23.8-inch G4 All-in-One Business PC HP ProOne 400 20-inch G4 All-in-One Business PC

AMD is a trademark of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its proprietor and used by HP Inc. under license. Intel, Celeron, and Pentium are trademarks of Intel Corporation in the U.S. and other countries. Microsoft and Windows are trademarks of the Microsoft group of companies.

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.

This document contains proprietary information that is protected by copyright. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of HP Development Company.

First Edition: June 2018

Product notice

This user 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 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.

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.

Document Part Number: L20659-001

About This Book

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

Overview ................................................................................................................................................................ 1

HP ProOne 400 23.8-inch components ................................................................................................................. 2

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

Side components ................................................................................................................................. 2

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

Bottom components ............................................................................................................................ 3

HP ProOne 400 20-inch components .................................................................................................................... 4

Front components ............................................................................................................................... 4

Side components ................................................................................................................................. 4

Rear components ................................................................................................................................ 5

Bottom components ............................................................................................................................ 5

Labels ..................................................................................................................................................................... 6

2 Illustrated parts catalog ................................................................................................................................ 8

System parts .......................................................................................................................................................... 8

Mass storage devices ........................................................................................................................................... 11

Processors and memory modules ....................................................................................................................... 12

Keyboards and mice ............................................................................................................................................. 12

3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 14

Electrostatic discharge information .................................................................................................................... 14

Generating static ............................................................................................................................... 14

Preventing electrostatic damage to equipment ............................................................................... 15

Personal grounding methods and equipment .................................................................................. 15

Grounding the work area ................................................................................................................... 15

Recommended materials and equipment ........................................................................................ 16

Operating guidelines ........................................................................................................................................... 16

Routine care ......................................................................................................................................................... 17

General cleaning safety precautions ................................................................................................ 17

Cleaning the Computer Case ............................................................................................................. 17

Cleaning the keyboard ....................................................................................................................... 17

Cleaning the display .......................................................................................................................... 18

Cleaning the mouse ........................................................................................................................... 18

Service considerations ......................................................................................................................................... 18

Tools and software requirements ..................................................................................................... 18

Screws ............................................................................................................................................... 18

Cables and connectors ...................................................................................................................... 18

Hard Drives ........................................................................................................................................ 19

Lithium coin cell battery .................................................................................................................... 19

SATA hard drive cables ......................................................................................................................................... 20

SATA data cable ................................................................................................................................. 20

Cable management .............................................................................................................................................. 20

4 Removal and Replacement Procedures .......................................................................................................... 21

Preparing to disassemble the computer ............................................................................................................. 21

Stand .................................................................................................................................................................... 21

VESA bracket ........................................................................................................................................................ 22

Rear port cover .................................................................................................................................................... 23

Locating internal components under the rear port cover ................................................................................... 23

Hard drive ............................................................................................................................................................. 24

Optical drive ......................................................................................................................................................... 26

M.2 solid-state drive ............................................................................................................................................ 28

Memory ................................................................................................................................................................ 29

Battery ................................................................................................................................................................. 31

WLAN module ...................................................................................................................................................... 32

Option board ........................................................................................................................................................ 33

Hood sensor ......................................................................................................................................................... 34

Fan assembly ....................................................................................................................................................... 35

Heat sink .............................................................................................................................................................. 36

Processor ............................................................................................................................................................. 38

System board ....................................................................................................................................................... 39

System board callouts ......................................................................................................................................... 41

Speakers .............................................................................................................................................................. 42

23.8-models ...................................................................................................................................... 42

20-models ......................................................................................................................................... 43

Power button board ............................................................................................................................................. 45

Rear enclosure and display assembly ................................................................................................................. 47

Rear enclosure and display assembly in 23.8-inch models ............................................................. 47

Display panel in 20-inch models ....................................................................................................... 50

Webcam ............................................................................................................................................................... 54

23.8-inch models .............................................................................................................................. 54

20-inch models ................................................................................................................................. 57

Antennas in 23.8-inch models ............................................................................................................................. 58

5 Computer Setup (F10) Utility ........................................................................................................................ 59

Computer Setup (F10) Utilities ............................................................................................................................ 59

Using Computer Setup (F10) Utilities ................................................................................................ 59

Computer Setup–Main ....................................................................................................................... 61

Computer Setup—Security ............................................................................................................... 63

Computer Setup—Advanced ............................................................................................................. 67

Recovering the conguration settings ................................................................................................................ 72

6 Using HP PC Hardware Diagnostics ................................................................................................................ 73

Using HP PC Hardware Diagnostics Windows (select products only) ................................................................. 73

Downloading HP PC Hardware Diagnostics Windows ....................................................................... 73

Downloading the latest HP PC Hardware Diagnostics Windows version ....................... 74

Downloading HP Hardware Diagnostics Windows by product name or number

(select products only) ..................................................................................................... 74

Installing HP PC Hardware Diagnostics Windows ............................................................................. 74

Using HP PC Hardware Diagnostics UEFI ............................................................................................................. 74

Starting HP PC Hardware Diagnostics UEFI ....................................................................................... 75

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive .............................................. 75

Downloading the latest HP PC Hardware Diagnostics UEFI version .............................. 75

Downloading HP PC Hardware Diagnostics UEFI by product name or number

(select products only) ..................................................................................................... 75

Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ............................................. 76

Downloading Remote HP PC Hardware Diagnostics UEFI ................................................................. 76

Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ................. 76

Downloading Remote HP PC Hardware Diagnostics UEFI by product name or

number ............................................................................................................................ 76

Customizing Remote HP PC Hardware Diagnostics UEFI settings .................................................... 76

7 Troubleshooting without diagnostics ............................................................................................................ 78

Safety and comfort .............................................................................................................................................. 78

Before you call for technical support .................................................................................................................. 78

Helpful hints ........................................................................................................................................................ 79

Solving general problems .................................................................................................................................... 80

Solving power problems ...................................................................................................................................... 83

Solving hard drive problems ................................................................................................................................ 84

Solving audio problems ....................................................................................................................................... 86

Solving printer problems ..................................................................................................................................... 87

Solving keyboard and mouse problems .............................................................................................................. 88

Solving hardware installation problems ............................................................................................................. 89

Solving network problems .................................................................................................................................. 90

Solving memory problems .................................................................................................................................. 92

Solving USB ash drive problems ........................................................................................................................ 94

Solving Internet access problems ....................................................................................................................... 94

vii

Solving software problems .................................................................................................................................. 95

8 Backing up, restoring, and recovering ........................................................................................................... 97

Using Windows tools ........................................................................................................................................... 97

Creating HP Recovery media (select products only) ........................................................................................... 97

Using HP Recovery Manager to create recovery media .................................................................... 98

Before you begin ............................................................................................................. 98

Creating the recovery media ........................................................................................... 98

Using the HP Cloud Recovery Download Tool to create recovery media .......................................... 99

Restoring and recovery ........................................................................................................................................ 99

Restoring, resetting, and refreshing using Windows tools .............................................................. 99

Restoring using HP Recovery Manager and the HP Recovery partition ........................................... 99

Recovering using HP Recovery Manager ........................................................................................... 99

Recovering using the HP Recovery partition (select products only) .............................................. 100

Recovering using HP Recovery media ............................................................................................. 100

Changing the computer boot order ................................................................................................ 101

Removing the HP Recovery partition (select products only) .......................................................... 101

9 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 102

POST numeric codes and text messages .......................................................................................................... 102

Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 107

10 Password security and resetting CMOS ...................................................................................................... 109

Resetting the password jumper ........................................................................................................................ 109

Clearing and resetting the BIOS ........................................................................................................................ 111

Appendix A Power cord set requirements ....................................................................................................... 112

General requirements ........................................................................................................................................ 112

Japanese power cord requirements .................................................................................................................. 112

Country-specic requirements .......................................................................................................................... 113

Appendix B Statement of memory volatility ................................................................................................... 114

Nonvolatile memory usage ............................................................................................................................... 116

Questions and answers ..................................................................................................................................... 118

Using HP Sure Start (select models only) .......................................................................................................... 119

Appendix C Specications ............................................................................................................................. 120

Index ........................................................................................................................................................... 121

viii

1 Product features

Overview

NOTE: For the latest manuals on this product, go to http://www.hp.com/support. Select Find your product,

and then follow the on-screen instructions.

Overview 1

HP ProOne 400 23.8-inch components

Front components

Component Component

1 Webcam microphones (2) (optional) 4 Webcam/IR lens (optional)

2 IR LED (optional) 5 IR LED (optional)

3 Webcam LED (optional) 6 Speakers (2) (optional)

Side components

Component Component

1 Optical disc drive (optional) 5 USB 3.1 Type-C port

2 Optical disc drive light (optional) 6 USB 3.1 Type-A (charging) port

3 Optical disc drive eject button (optional) 7 USB 3.1 Type-A port

4 SD card reader (optional) 8 Audio-out (headphone)/Audio-in (microphone) combo jack

2 Chapter 1 Product features

Rear components

Component Component

1 DisplayPort port (optional)

– or –

HDMI port (optional)

– or –

Serial port (optional)

2 USB 3.1 Type-A ports (2) 5 Power connector

3 DisplayPort port 6 Security cable slot

Bottom components

4 RJ-45 (network) jack

Component Component

1 Power button 3 Hard drive activity light

2 Power light

HP ProOne 400 23.8-inch components 3

HP ProOne 400 20-inch components

Front components

Component Component

1 Webcam LED 3 Webcam microphone

2 Webcam lens 4 Speakers (2) (optional)

Side components

Component Component

1 Optical disc drive (optional) 5 USB 3.1 Type-C port

2 Optical disc drive light (optional) 6 USB 3.1 Type-A (charging) port

3 Optical disc drive eject button (optional) 7 USB 3.1 Type-A port

4 SD card reader (optional) 8 Audio-out (headphone)/Audio-in (microphone) combo jack

4 Chapter 1 Product features

Rear components

Component Component

1 DisplayPort port (optional)

– or –

HDMI port (optional)

– or –

Serial port (optional)

2 USB 3.1 Type-A ports (2) 5 Power connector

3 DisplayPort port 6 Security cable slot

Bottom components

4 RJ-45 (network) jack

Component Component

1 Power button 3 Hard drive activity light

2 Power light

HP ProOne 400 20-inch components 5

Labels

The labels axed 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 axed to the bottom of

the computer.

1. You may need the Product Key to update or troubleshoot the operating system. HP platforms

preinstalled with Windows 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 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) Serial number

(2) Product number

(3) Warranty period

6 Chapter 1 Product features

3. Look for the serial number label in the following locations:

Labels 7

2 Illustrated parts catalog

Component appearance may vary.

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.

System parts

Item Description

(1) Rear port cover (available for models with the following expansion port: DisplayPort, HDMI, serial, or no expansion port)

(2) Adjustable height stand

(3) Fixed height stand

Heat sink (thermal module) (includes replacement thermal material)

(4) For use in models with discrete graphics memory

(5) For use in models with UMA graphics memory and up to 65 W processors

For use in models with UMA graphics memory and 35 W processors

(6) Speakers (left and right)

(7) Speaker cover (for use only in 23.8-inch models)

(8) System board (separate system boards available for models with discrete graphics memory or UMA graphics memory)

8 Chapter 2 Illustrated parts catalog

Item Description

(9) Fan

(10) Optical drive carrier

NOTE: Optical drives are spared separately from the optical drive carrier.

* Optical drive

BD writer drive

DVD±RW drive

DVD-ROM drive

(11) Option board

DisplayPort

HDMI

Serial

(12) Power button board (includes holder)

(13) Bezel (for use in 20-inch models)

(14) Webcam module with bracket and microphone module (for use only in 23.8-inch models)

Webcam modules available in FHD (1080p), FHD+IR (1080p), and HD (720p)

(15) Webcam module and microphone module (for use only in 20-inch models)

Webcam modules available in FHD (1080p), FHD+IR (1080p), and HD (720p)

* Rear enclosure and display assembly (includes display panel, back plastic panel, panel frame, system board basepan,

webcam frame assembly, webcam module, microphone modules, webcam cable, and wireless cables and antennas)

NOTE: Dierent assemblies are required depending on whether the computer has a 35 W processor or a 65 W processor.

For use in 23.8-inch models with an HD webcam

For use in 23.8-inch models with an FHD webcam

For use in 23.8-inch models with an FHD+IR webcam

For use in 23.8-inch models without a webcam

For use in 20-inch models

* RTC battery

* Cables

LVDS display cable (for use only in 20-inch models)

Webcam cable (for use only in 20-inch models)

Backlight cable, SDC (for use only in 20-inch models)

Backlight cable, INX (for use only in 20-inch models)

Power button board cable

Hard drive SATA cable

DVI monitor cable

* AC adapter

System parts 9

Item Description

150 W, PFC, straight

120 W, PFC, 7.4 mm

90 W, PFC, 7.4 mm

* WLAN modules

Intel Dual Band Wireless-AC 9560 802.11 AC 2x2 WiFi + Bluetooth 5.0 Combo Adapter (vPro)

Intel Dual Band Wireless-AC 9560 802.11 AC 2x2 WiFi + Bluetooth 5.0 Combo Adapter (non-vPro)

Realtek RTL8821CE 802.11 ac 1x1 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported)

Realtek RTL8822BE 802.11 ac 2x2 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported)

* Hood sensor

* Adapters

USB to serial adapter

USB-C to USB 3.0 adapter

DisplayPort to VGA

DisplayPort to DVI

DisplayPort to HDMI 2.0

* Optical drive blank (for use in models without an optical drive)

* Covers

Optical drive cover (for use in models without an optical drive)

Webcam cover (for use in models without a webcam)

Card reader cover (for use in models without a card reader)

* VESA kit (for use in models without a stand)

* USB-C to USB-A hub

* Power cord

10 Chapter 2 Illustrated parts catalog

Mass storage devices

Description

Optical drive

BD writer drive

DVD±RW drive

DVD-ROM drive

Hard drive

2 TB, 5400 rpm, hybrid SSD drive, 7 mm

2 TB, 5400 rpm, 7 mm

1 TB, 5400 rpm, hybrid SSD drive, 9.5 mm

1 TB, 7200 rpm, 9.5 mm

500 GB, 5400 rpm, hybrid SSD drive, 7 mm

500 GB, 7200 rpm hard drive, self-encrypting (SED), Opal 2, 7 mm

500 GB, 7200 rpm, 7 mm

500 GB, 7200 rpm hard drive, FIPS, 7 mm

Solid-state drive (SATA-3, TLC, 2.5-inch)

512-GB

512-GB, self-encrypting (SED), Opal 2

512-GB, FIPS 140-2

256-GB

256-GB, self-encrypting (SED), Opal 2

256-GB, FIPS 140-2

Solid-state drive (M.2, PCIe)

1-TB, TLC

512-GB, TLC

512-GB

512-GB, self-encrypting (SED), TLC

256-GB, TLC

256-GB, self-encrypting (SED), TLC

128-GB, TLC

128-GB

Optane memory module, 118 GB

Optane memory module, 16 GB

Mass storage devices 11

Processors and memory modules

Description

Memory modules (SODIMM; PC4-2400)

16-GB

8-GB

4-GB

Intel Processors (include replacement thermal material)

Intel Core i7-8700

Intel Core i7-8700T

Intel Core i5-8600

Intel Core i5-8600T

Intel Core i5-8500

Intel Core i5-8500T

Intel Core i3-8300T

Intel Core i3-8100T

Intel Core i3-8033

Intel Core i3-8011

Intel Pentium G5600

Intel Pentium G5500

Intel Pentium G5500T

Intel Pentium G5400T

Intel Celeron G4900

Intel Celeron G4900T

Keyboards and mice

Description

Keyboard

Washable, USB PS2

USB, unbranded

USB

USB, essential

Conferencing

USB, slim

Wireless, with mouse

12 Chapter 2 Illustrated parts catalog

Description

USB, slim, smart card

Antimicrobial

USB, slim, gray

USB, collaboration

Wireless, collaboration

USB, wired, healthcare

Premium, wireless

USB, Katydid

Mouse

USB, healthcare

USB, gray

USB, antimicrobial

USB/PS2 Washable

Hardened

USB, optical

USB

USB, laser

Keyboards and mice 13

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.

CAUTION: 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) may not appear to be aected at all and can work perfectly throughout a normal cycle. The device may 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.

Generating static

The following table shows that:

●

Dierent activities generate dierent amounts of static electricity.

●

Static electricity increases as humidity decreases.

Relative Humidity

Event 55% 40% 10%

Walking across carpet

Walking across vinyl oor

Motions of bench worker

Removing DIPs from plastic tube

Removing DIPs from vinyl tray

Removing DIPs from Styrofoam

Removing bubble pack from PCB

Packing PCBs in foam-lined box

These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

7,500 V

3,000 V

400 V

2,000 V

3,500 V

7,000 V

5,000 V

15,000 V

5,000 V

800 V

700 V

4,000 V

5,000 V

20,000 V

11,000 V

35,000 V

12,000 V

6,000 V

2,000 V

11,500 V

14,500 V

26,500 V

21,000 V

NOTE: 700 volts can degrade a product.

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

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 damage to electric components and accessories.

●

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 equipment:

●

Wrist straps are exible straps with a maximum of one-megohm ± 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 one-megohm ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

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.

1,500

7,500

15,000

●

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 Styrofoam.

●

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

Electrostatic discharge information 15

Recommended materials and equipment

Materials and equipment that are recommended for use in preventing static electricity include:

●

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 one-megohm +/- 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 one-megohm +/- 10% resistance

●

Material handling packages

●

Conductive plastic bags

●

Conductive plastic tubes

●

Conductive tote boxes

●

Opaque shielding bags

●

Transparent metallized shielding bags

●

Transparent shielding tubes

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 display 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 re-circulated 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.

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

●

Never cover the ventilation slots on the display 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 17 before cleaning the computer.

To clean the computer case, follow the procedures described below:

●

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 as the alcohol will evaporate quickly and not leave a residue.

●

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 17 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 17.

When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 17 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 may be removed by vacuuming or shaking.

●

Canned, pressurized air may 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.

Routine care 17

●

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.

CAUTION: 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.

●

Cleaning under a key may be done 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 display

●

Wipe the display screen with a clean cloth moistened with water or with a towelette designed for cleaning displays. 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 display.

●

To clean the display body follow the procedures in Cleaning the Computer Case on page 17.

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 17.

Service considerations

Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.

Tools and software requirements

To service the computer, you need the following:

●

Torx T-15 screwdriver

●

Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)

●

Phillips #2 screwdriver

Screws

The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of dierent lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

CAUTION: Metric screws have a black nish. U.S. screws have a silver nish and are used on hard drives only.

CAUTION: As each subassembly is removed from the computer, it should be placed away from the work area

to prevent damage.

Cables and connectors

Most cables used throughout the unit are at, exible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from

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

the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the

reassembly process. Improper cable placement can damage the computer.

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.

●

If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.”

Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.

Avoid dropping drives from any height onto any surface.

If you are inserting or removing a hard drive, turn o the computer. Do not remove a hard drive while the computer is on or in standby mode.

Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to

Electrostatic discharge information on page 14

●

Do not use excessive force when inserting a drive.

●

Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds such as displays or speakers.

Lithium coin cell battery

The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years.

See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures.

WARNING! This computer contains a lithium battery. There is a risk of re and chemical burn if the battery is

handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or re, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.

NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general

household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents.

Service considerations 19

SATA hard drive cables

SATA data cable

Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives.

Current HP desktop products ship with SATA 6.0 Gb/s hard drives.

SATA data cables are susceptible to damage if overexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius.

The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.

Cable management

Always follow good cable management practices when working inside the computer.

●

Keep cables away from major heat sources like the heat sink.

●

Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.

●

Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved.

●

When folding a at ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.

●

Some at ribbon cables come prefolded. Never change the folds on these cables.

●

Do not bend any cable sharply. A sharp bend can break the internal wires.

●

Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.

●

Never crease a SATA data cable.

●

Do not rely on components like the drive cage, power supply, or computer cover to push cables down into the chassis. Always position the cables to lay properly by themselves.

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

4 Removal and Replacement Procedures

The following sections provide information about disassembling various components of the computer.

Preparing to disassemble the computer

To avoid injury and equipment damage, always complete the following steps in order, when opening the HP All-in-One.

1. Remove all media from the computer.

2. Shut down the computer.

3. After the system has completely shut down, disconnect the power adapter from the back of the

computer.

4. Disconnect all other attached cables from the back of the computer.

5. Place the computer face down on a soft at surface. HP recommends that you set down a blanket, towel,

or other soft cloth to protect the screen surface from scratches or other damage.

WARNING! Beware of sharp edges inside the chassis.

Stand

Two stands are available for the computer - a xed height stand and an adjustable height stand. The removal procedure is the same for both stands.

To remove the stand:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Press the stand release latch.

3. Rotate the stand away from the computer (1).

4. Slide the stand hooks out of the computer (2).

Preparing to disassemble the computer 21

VESA bracket

A VESA mount option is available. A separate VESA bracket and cover install in place of the stand.

To remove the VESA bracket:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the VESA cover from atop the bracket.

3. Remove the two screws (1) that secure the VESA bracket to the computer.

4. Lift the bottom of the bracket, and then remove the bracket (2).

To install a VESA bracket, reverse the removal procedures.

22 Chapter 4 Removal and Replacement Procedures

Rear port cover

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the four Phillips screws securing the back cover (1), and then lift the back cover to remove it

from the computer (2).

To install the rear port cover, reverse the removal procedures.

Locating internal components under the rear port cover

Component Component

1 Optical disc drive (optional) 3 RTC battery

2 Memory modules 4 Hard drive

Rear port cover 23

Hard drive

For a list of available hard drives, see Mass storage devices on page 11.

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the rear port cover (see Rear port cover on page 23).

5. Remove the screw (1) that secures the hard drive to the computer.

6. Slide the hard drive away the edge of the computer and lift the hard drive out of the computer (2). Note

that a cable connects the rear of the hard drive to the system board.

7. Position the hard drive upside-down to access the connector on the back, and the disconnect the cable

from the rear of the drive.

8. Disconnect the power and data cables from the hard drive. There is a tab you can pull to disconnect

these cables.

24 Chapter 4 Removal and Replacement Procedures

9. Remove the four mounting screws from the 2.5 inch hard drive cage (1). Be sure to keep the screws to

use to install a replacement drive. Remove the hard drive (2).

Reverse the removal procedures to install a hard drive.

Hard drive 25

Optical drive

The optical drive mounts on the exterior, rear of the computer. It is secured with two screws.

For a list of available optical drives, see Mass storage devices on page 11.

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the rear port cover (see Rear port cover on page 23).

3. Remove the stand (see Stand on page 21).

4. Remove the rear cover (see Rear port cover on page 23).

5. Remove the two Phillips screws (1) that secure the drive carrier to the computer, move the carrier back

and forth (2), and then slide the carrier away from the connector to remove it (3).

IMPORTANT: Do not lift the drive as you remove it.

26 Chapter 4 Removal and Replacement Procedures

6. Remove the Phillips screw that secure the optical drive inside the carrier.

7. Slide the optical drive out of the carrier.

Reverse the removal procedures to install an optical drive.

Optical drive 27

M.2 solid-state drive

For a list of available solid-state drives, see Mass storage devices on page 11.

To remove the M.2 solid-state drive:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the Phillips screw (1) that secures the drive to the computer.

5. Pull the drive away to remove it from the socket (2).

To install the solid-state drive, reverse the removal procedures.

28 Chapter 4 Removal and Replacement Procedures

Memory

The memory slots on the system board can be populated with up to two industry-standard small outline dual inline memory modules (SODIMMs). These memory slots are populated with at least one preinstalled memory module. A metal shield protects the memory modules.

For proper system operation, the memory modules must meet the following qualications:

Component Specication

Memory modules 1.2 volt DDR4-SDRAM memory modules

Compliance Unbuered non-ECC DDR4-2666 MHz SODIMM compliant

Pins Industry-standard 260 pins containing the mandatory Joint Electronic Device

Support Support CAS latency 19 DDR4 2666 MHz (19-19-19 timing)

Slots 2

Maximum Memory 16 GB per memory slot, 32 GB total

Supported 8 Gbit (base) non-ECC memory technologies single-sided and double-sided SODIMMs

Note The system will not operate properly if you install unsupported SODIMM

Engineering Council (JEDEC) specication

memory. SODIMMs constructed with x8 and x16 DDR devices are supported; memory modules constructed with x4 SDRAM are not supported.

The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending on how the memory modules are installed. Refer to the following table to identify the memory module channel locations.

Location System board label Channel

Lower Socket SODIMM1 Channel B

Upper Socket SODIMM3 Channel A

The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending on how the memory modules are installed.

●

The system will operate in single channel mode if the memory module slots are populated in one channel only.

●

The system will operate in a higher-performing dual channel mode if the memory capacity of the memory module in Channel A is equal to the memory capacity of the memory module in Channel B.

●

The system will operate in ex mode if the memory capacity of the memory module in Channel A is not equal to the memory capacity of the memory module in Channel B. In ex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel and the remainder is assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to channel A.

●

In any mode, the maximum operational speed is determined by the slowest memory module in the system.

Memory 29

To remove a memory module:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. To remove a memory module, press outward on the two latches on each side of the memory module (1),

then pull the memory module out of the slot (2).

5. Slide the new memory module into the slot at approximately a 30° angle (1), then press the memory

module 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 slot.

The computer automatically recognizes the additional memory when you turn on the computer.

30 Chapter 4 Removal and Replacement Procedures

Battery

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-volt lithium coin cell battery.

WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of re 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 (140º F).

Do not disassemble, crush, puncture, short external contacts, or dispose of in re 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, ensure that you are discharged of static electricity by briey 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 batteries. For more information about recycling programs, go to http://www.hp.com/recycle.

To locate the battery on the system board, see Locating internal components under the rear port cover

on page 23.

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. To release the battery, disconnect the battery cable (1), and then lift the battery from the computer (2).

Battery 31

WLAN module

The WLAN module is located near the top of the system board. The WLAN module is secured with one Phillips screw and has two connected antennas.

For a list of available WLAN modules, see Illustrated parts catalog on page 8.

NOTE: The procedure to replace the WLAN module must be performed by an HP technician.

To remove the WLAN module:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Disconnect the antenna cables from the module (1).

5. Remove the Phillips screw (2) that secures the module to the computer.

6. Lift the module to a 45-degree angle, and then pull it away to remove it from the socket (3).

To install the WLAN module, reverse the removal procedures.

When connecting the antennas cables, connect the cable labeled “1” (black sticker) to the AUX “1” connector on the module and the cable labeled “2” (white sticker) to the MAIN “2” connector on the module.

NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.

32 Chapter 4 Removal and Replacement Procedures

Option board

The option board is connected to the bottom, left of the system board. Underneath the board is a connector that connects to the system board.

For a list of available option boards, see Illustrated parts catalog on page 8.

To remove the option board:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the two Phillips screws (1) that secure the board to the system board.

5. Lift the board up to disengage it from the connector underneath, and then remove the board from the

computer (2).

NOTE: DisplayPort option board shown. HDMI and serial port option boards are also available.

To install the option board, reverse the removal procedures.

Option board 33

Hood sensor

The hood sensor is located to the right of the system board.

To remove the hood sensor:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Disconnect the hood sensor cable from the system board (1).

5. Remove the cable from the clips in the computer (2).

6. Pry the sensor out of the slot to remove it (3).

To install the hood sensor, reverse the removal procedures.

34 Chapter 4 Removal and Replacement Procedures

Fan assembly

To remove the fan assembly:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the three Phillips screws that secure the fan to the computer (1).

5. Disconnect the fan cable from the system board (2).

6. Remove the fan from the computer (3).

To install the fan assembly, reverse the removal procedures.

Fan assembly 35

Heat sink

Dierent heat sinks are available for models with UMA graphics memory or discrete graphics memory.

You must remove the fan before you can remove the heat sink.

To remove the heat sink:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the fan (see Fan assembly on page 35).

5. In the order indicated on the heat sink, loosen the three screws (UMA models) or ve screws (discrete

6. Remove the non-captive screw (2) from the top, right extension of the heat sink.

models) (1).

36 Chapter 4 Removal and Replacement Procedures

7. Lift the heat sink out of the computer (3).

CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal grease

on the surface of the processor or the heat sink.

UMA models

Discrete models

To replace the heat sink, reverse the removal procedures.

Heat sink 37

Processor

For a list of available processors, see Illustrated parts catalog on page 8.

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the fan (see Fan assembly on page 35).

5. Remove the heat sink (see Heat sink on page 36).

6. Rotate the locking lever to its full open position (1).

7. Raise and rotate the microprocessor retainer to its fully open position (2), and then carefully lift the

processor from the socket (3).

CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and handling

them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board.

The heat sink must be installed within 24 hours of installing the processor to prevent damage to the processor’s solder connections.

NOTE: After installing a new processor onto the system board, always update the system ROM to ensure

that the latest version of the BIOS is being used on the computer. The latest system BIOS can be found on the Web at: http://www.hp.com.

38 Chapter 4 Removal and Replacement Procedures

System board

The system board is secured with three screws.

To remove the system board:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the fan (see Fan assembly on page 35).

5. Remove the heat sink (see Heat sink on page 36).

6. When replacing the system board, make sure the following components are removed from the defective

system board and installed on the replacement system board:

●

Memory modules (Memory on page 29)

●

M.2 solid-state drive (M.2 solid-state drive on page 28)

●

WLAN module (WLAN module on page 32)

●

Processor (Processor on page 38)

●

Option board (Option board on page 33)

7. Disconnect all cables from the system board, noting their location for reinstallation.

NOTE: If replacing the system board, you do not need to disconnect the RTC battery, as replacement

boards come with a battery already connected.

8. Remove the three screws (1) that secure the system board to the computer.

9. Lift the right side of the system board up slightly (2).

10. Pull the system board to the right to disengage the ports from the chassis (3), and then lift the system

board up and out of the computer (4).

To install the system board, reverse the removal procedures.

Replace the thermal pad below the system board.

System board 39

Updating SMBIOS Information

When replacing the system board, you must reprogram the SMBIOS information on the aected computer. Failure to reprogram the board will result in eventual failure, such as an activation failure (need to reactivate the system) or a system recovery failure.

To update SMBIOS information in Computer Setup:

1. Turn on or restart the computer.

2. Press Esc while the “Press the ESC key for Startup Menu” message is displayed at the bottom of the

screen.

NOTE: If you do not press Esc at the appropriate time, you must restart the computer and again press

Esc when the display light turns green to access the utility.

3. Press F10 to enter Computer Setup.

4. Go to Main > Set Machine Unique Data.

5. If necessary, press Ctrl+A to initiate edit mode.

6. Edit the elds listed. If the feature byte has data or is not editable, then it was not cleared and cannot be

edited.

System ID Setup Page

Setup Field Name Comment Label

Product Name Enter the Model name/number or marketing name. Flexbuild

Serial Number Enter the Serial Number of Unit. Support

SKU Number Enter the SKU or Product Number including Localization Code. Support

Asset Tag Enter the 18-byte identier assigned to the computer. Support

Feature Byte Enter the Feature Byte string. The feature byte string is case sensitive.

The label includes spaces after every four characters. You can enter or ignore these spaces – their only purpose is to help with data entry. There is a character limitation of 40 bytes per line. When you reach this limit, go to the next line to continue data entry. BIOS ignores the spaces and lines.

If you make an error during data entry, the data will not validate, and the computer asks you to correct your data input.

Build ID The Build ID of the unit. Flexbuild

Flexbuild

40 Chapter 4 Removal and Replacement Procedures

System board callouts

Sys Bd Label Color Component Sys Bd Label Color Component

PSWD Blue Password reset jumper TOUCH White Touch panel

CMOS Yellow Reset CMOS HSENSE White Hood sensor

SATA1 Black Optical drive WLAN Black WLAN module

PROCESSOR Black Processor socket COMM_DP Black Option board

CHFAN Black Fan connector SPKR Black Speaker

LVDS White Display connector PB/MR White Power button

CPUFAN White Fan connector SSD Black M.2 SSD drive

BAT Black RTC battery DIMM3 Black Memory module

DPCONV Black Display panel DIMM1 Black Memory module

SATA0 Black Hard drive WCAM White Webcam connector

System board callouts 41

Speakers

23.8-models

The speakers are located at the bottom of the computer behind the speaker cover. Two separate speakers are each secured by two Phillips screws.

To remove the speakers:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Locate the speaker cover.

5. Rotate the top of the cover downward to disengage the snaps from the chassis, and then remove the

cover.

42 Chapter 4 Removal and Replacement Procedures

6. From the rear of the computer, disconnect the speaker cable from the system board (1), and then push

the connector end of the cable through the hole (2) that allows the cable to route to the front of the chassis.

7. Remove two Phillips screws (1) that secure each speaker to the computer.

8. Pull the speaker cable through the hole in the chassis (2).

9. Remove the speakers from the computer.

To install the speakers, reverse the removal procedures.

20-models

The speakers are located at the bottom of the computer behind the speaker cover. Two separate speakers are each secured by two Phillips screws.

To remove the speakers:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

Speakers 43

4. From the rear of the computer, disconnect the speaker cable from the system board (1), and then push

the connector end of the cable through the hole (2) that allows the cable to route to the front of the chassis.

5. Remove two Phillips screws (1) that secure each speaker to the computer.

6. Pull the speaker cable through the hole in the chassis (2).

7. Remove the speakers from the computer.

To install the speakers, reverse the removal procedures.

44 Chapter 4 Removal and Replacement Procedures

Power button board

The power button board is located at the bottom, right of the computer. It is spared with a plastic holder.

To remove the power button board:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the speaker cover (see Speakers on page 42).

5. Disconnect the power button board cable from the system board ZIF connector (1), and then push the

connector end of the cable through the hole (2) that allows the cable to route to the front of the chassis.

6. Locate the power button board under the speaker cover.

7. Remove Phillips screw (1) that secures the power button board to the computer.

Power button board 45

8. Pull the power button board cable through the hole in the chassis (2).

9. Remove the power button board from the computer.

To install the power button board, reverse the removal procedures.

46 Chapter 4 Removal and Replacement Procedures

Rear enclosure and display assembly

Rear enclosure and display assembly in 23.8-inch models

IMPORTANT: Removing the rear enclosure is a very involved process. To successfully disassemble, be sure

to follow all steps in the correct order. If you break the clips or otherwise damage the rear cover during removal, a replacement cover is available. If you have to replace the cover, be sure to remove the webcam from the old cover and install on the new cover.

To remove the rear enclosure and main chassis:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the speaker cover (see Speakers on page 42).

5. Remove the system board (see System board on page 39).

6. Remove the four screws (1) that secure the webcam carrier to the computer.

7. Move the webcam carrier aside so you can access the screw underneath (2).

Rear enclosure and display assembly 47

8. Remove the screw from under the webcam.

9. From the front of the computer, remove the three Phillips screw located under the speaker cover that

secure the rear enclosure to the computer.

10. From the rear of the computer, remove the four Phillips screw located along the bottom edge of the

computer.

48 Chapter 4 Removal and Replacement Procedures

11. Starting near the bottom right (as viewed from the rear), pull the rear closure up to disengage it from

the computer. Work upward, and then toward the left, lifting the enclosure up to disengage, and then lift the rear enclosure o the computer.

IMPORTANT: On models with a webcam, the webcam cable connects from the rear enclosure to the

system board.

TIP: Release all the catches around the edges of the cover rst, and then pull up on the center of the

cover to release the center catches.

12. Position the rear enclosure next to the computer. Note proper webcam cable routing, as pointing out in

the following image. The webcam cable routes across the display panel and then under the chassis. You must remove the chassis from the panel to remove the webcam cable.

13. To remove the main chassis, remove the four Phillips screws around the sides (1) and the Phillips screw

in the middle (2) of the chassis.

Rear enclosure and display assembly 49

14. Lift the chassis up, and then route the display cable (3) and the backlight cable (4) through the holes in

the chassis.

15. Remove the chassis from the display panel.

16. Remove the seven screws that secure the plastic frame from the display, and then lift the frame o the

display.

IMPORTANT: Install the new display panel together with all other parts in the replacement kit. Do not

reuse any old parts. Return all old parts to HP for warranty processing.

CAUTION: It is very important to use the exact cable that shipped with the replacement panel. Failure

to use the correct cable may result in panel failure.

To replace the rear enclosure and main chassis, reverse the removal procedures.

Display panel in 20-inch models

To remove the display panel:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

50 Chapter 4 Removal and Replacement Procedures

4. Remove the speaker cover (see Speakers on page 42).

5. Remove the system board (see System board on page 39).

6. Lift the bezel to disengage it from the computer.

7. Remove the bezel from the computer.

Rear enclosure and display assembly 51

8. Remove the six Phillips screws that secure the display panel to the computer.

9. Disconnect the main display cable from the rear of the display panel (1), and disconnect the backlight

cable from the display panel (2).

IMPORTANT: When replacing the display panel, be sure to use the cable that comes with the new

display panel.

10. Separate the panel from the computer.

52 Chapter 4 Removal and Replacement Procedures

11. Remove the four Phillips screws from the top and bottom of the two brackets on the display panel.

12. Pull the brackets o the sides of the display panel.

To replace the display panel, reverse the removal procedures.

Rear enclosure and display assembly 53

Webcam

23.8-inch models

The webcam pops up from the top of the computer. You can remove the webcam module and microphone modules from the webcam frame assembly. The webcam frame is not removable and is spared with the rear enclosure and display assembly.

For a list of available webcams, see Illustrated parts catalog on page 8.

To remove the webcam:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Pull the edges of the webcam (1), and then remove the cover from the webcam (2).

54 Chapter 4 Removal and Replacement Procedures

3. Locate the webcam components:

(1) Microphone modules

(2) Webcam module with bracket

4. Peel the strip o from atop the webcam.

Webcam 55

5. Remove the two Phillips screws (1) that secure the webcam, and then disconnect the cable from the

webcam (2).

6. Remove the webcam and bracket from the computer.

7. If you need to remove the microphone modules, lift to disengage the modules from the webcam housing

(1), and the disconnect the cables from the modules (2).

To install webcam and microphone modules reverse the removal procedures.

56 Chapter 4 Removal and Replacement Procedures

20-inch models

The webcam pops up from the top of the computer. To remove the webcam, remove the webcam rear cover, four screws, and disconnect the cable from the connector on the webcam.

For a list of available webcams, see Illustrated parts catalog on page 8.

To remove the webcam:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the front bezel (see Display panel in 20-inch models on page 50).

3. Remove the two Phillips screws (1), that secure the webcam to the computer.

4. Disconnect the cable from the webcam (2).

5. Remove the webcam from the computer (3).

To install a webcam module, reverse the removal procedures.

Webcam 57

Antennas in 23.8-inch models

The antenna cables route from the WLAN module, through a hole in the main chassis, to antennas at the bottom of the computer. The antennas are secured to the computer with adhesive.

NOTE: Because it is dicult to remove the antenna without damaging it or losing adhesion, a new antenna

kit is available.

To remove the antennas:

1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 21).

2. Remove the stand (see Stand on page 21).

3. Remove the rear port cover (see Rear port cover on page 23).

4. Remove the speaker cover and speakers (see Speakers on page 42).

5. Remove the system board (see System board on page 39).

6. Disconnect the antenna cables from the WLAN module (see WLAN module on page 32).

7. Remove the rear enclosure and main chassis (see Rear enclosure and display assembly in 23.8-inch

models on page 47).

8. Peel the antennas o the chassis (1).

9. Pull the cables through the hole in the chassis (2).

10. Remove the screw from under the webcam.

To install the antennas, reverse the removal procedures.

NOTE: When connecting the antennas cables to the WLAN module, be sure to match the numbers on the

cable with the same number printed on the WLAN module.

58 Chapter 4 Removal and Replacement Procedures

5 Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Use Computer Setup (F10) Utility to do the following:

●

Change settings from the defaults or restore the settings to default values.

●

View the system conguration, including settings for processor, graphics, memory, audio, storage, communications, and input devices.

●

Modify the boot order of bootable devices such as hard drives or USB ash media devices.

●

Enter the Asset Tag or property identication number assigned by the company to this computer.

●

Enable the power-on password prompt during system restarts (warm boots) as well as during power-on.

●

Establish an administrator password that controls access to the Computer Setup (F10) Utility and the settings described in this section.

●

Establish minimum requirements for valid passwords, including length and required types of characters.

●

Secure integrated I/O functionality, including the serial, USB, or audio, or embedded NIC, so that they cannot be used until they are unsecured.

●

Enable or disable dierent types of boot sources.

●

Congure features such as Secure Boot, power management, virtualization support, and language and keyboard type used in Setup and POST.

●

Replicate the system setup by saving system conguration information on a USB device and restoring it on one or more computers.

●

Enable or disable DriveLock security or securely erase a hard drive (when supported by drive).

Using Computer Setup (F10) Utilities

Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps:

1. Turn on or restart the computer.

2. Repeatedly press F10 when the power button light turns white to access the utility.

You can also press Esc to a menu that allows you to access dierent options available at startup, including the Computer Setup utility.

NOTE: If you do not press F10 at the appropriate time, you must restart the computer and again

repeatedly press F10 when the power button light turns white to access the utility.

3. A choice of four headings appears in the Computer Setup Utilities menu: Main, Security, Advanced, and

UEFI Drivers.

NOTE: Selecting UEFI Drivers restarts the computer into the 3rd party option ROM management

application. You can access this application directly by pressing F3 during startup.

Computer Setup (F10) Utilities 59

4. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down) keys

to select the option you want, then press Enter. To return to the Computer Setup Utilities menu, press

Esc.

5. To apply and save changes, select Main > Save Changes and Exit.

●

If you have made changes that you do not want applied, select Ignore Changes and Exit.

●

To restore settings from the Advanced and Main menus to original values, select Apply Factory Defaults and Exit.

●

To restore settings from the Advanced and Main menus to those previously saved by Save Custom Defaults

factory defaults are used.

NOTE: Settings in the Security menu are not modied by Apply Defaults. Those values are reset by

Restore Security Settings to Factory Defaults at the bottom of the Security menu.

NOTE: Not all settings shown in the following sections are available for all models

CAUTION: Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup (F10) changes

because the settings could become corrupted. It is safe to turn o the computer only after exiting the F10 Setup screen.

, select Apply Custom Defaults and Exit. If no custom defaults have been saved, then

60 Chapter 5 Computer Setup (F10) Utility

Computer Setup–Main

NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.

Table 5-1 Computer Setup—Main

Option Description

System Information Lists all information in following list if Advanced System Information is selected. Lists smaller subset if

Basic System Information is selected.

●

Product name

●

Installed memory size

●

Processor type

●

Processor cache size (L1/L2/L3)

●

Processor speed

●

MicroCode revision

●

Processor stepping

●

Memory speed

●

DIMM size (for each installed module)

●

System BIOS version

●

ME Firmware version (Intel only)

●

Video BIOS version

●

Reference code revision

●

Super I/O rmware version

●

USB Type-C controller rmware version

●

Born on date

●

Serial number

●

SKU number

●

UUID (Universally Unique Identier)

●

Asset tracking number

●

Feature byte

●

Build ID

●

Product family

●

System board ID

●

System board CT number

●

Panel type

●

Panel serial number

●

Integrated MAC Address

System Diagnostics If the hard drive has the HP Advanced Diagnostics installed, the application will launch. If HP Advanced

Diagnostics is not installed, then a basic version built into the BIOS will provide the capability to perform the following functions:

●

Memory Test

●

Hard Drive Check

Computer Setup (F10) Utilities 61

Table 5-1 Computer Setup—Main (continued)

Option Description

●

Language

Update System BIOS Lets you update the system BIOS from www.hp.com or another network server, from a removable USB

drive, or from a le located on the hard drive.

●

Check [current selection] for BIOS Updates

The string that appears here depends on the setting in BIOS Update Preferences.

●

Lock BIOS Version

If this option is checked, the system is locked to the current BIOS version and updates are not allowed.

●

BIOS Rollback Policy

■

Unrestricted Rollback to older BIOS – Lets you roll back to any previous version of BIOS.

■

Restricted Rollback to older BIOS – If selected, Minimum BIOS Version becomes active, which lets you manually enter the minimum BIOS version that can be rolled back to.

●

Allow BIOS Updates Using a Network

●

BIOS Update Preferences

■

Check for Update on Next Reboot – default is disabled.

■

BIOS Source – lets you select either HP.com or a custom URL. If Custom URL is selected, Edit Custom URL becomes active. Using a custom URL is recommended only for a managed IT

environment.

■

Automatic BIOS Update Setting

Allows conguration of a periodic check for updates:

NOTE: If Microsoft Windows BitLocker Drive Encryption (BDE) is enabled, it must be

temporarily suspended before the BIOS is ashed.

■

Do not update

■

Check for updates and prompt the user to accept or reject the update at that time

■

Check for updates and install all new versions

■

Check for updates and install only new versions marked important

■

BIOS Update Frequency

■

Daily

■

Weekly

■

Monthly (default)

●

Network Conguration Settings

●

Update BIOS Using Local Media

Lets you access les on either USB storage or the hard drive. The HP BIOS Update and Recovery application included in BIOS Softpaqs at www.hp.com will copy the BIOS le to the correct location on the hard drive or USB device.

Change date and time Lets you update system date and time.

Set machine unique data Allows you to set/view data that is unique to each machine such as feature byte, build ID, serial number,

SKU number, product family, system board CT number, and product name.

System IDs Lets you set the following values:

●

Asset Tracking Number

62 Chapter 5 Computer Setup (F10) Utility

Table 5-1 Computer Setup—Main (continued)

Option Description

●

Ownership Tag

Replicated Setup Backup current settings to USB device

Saves system conguration to a formatted USB ash media device.

Restore current settings from USB device

Restores system conguration from a USB ash media device.

Save Custom Defaults Saves the current system conguration settings as the custom default set.

Apply Custom Defaults and Exit

Apply Factory Defaults and Exit

Ignore Changes and Exit Exits Computer Setup without applying or saving any changes.

Save Changes and Exit Saves changes to current system conguration, exits Computer Setup, and reboots.

Suppress POST errors Select to turn o any errors generated by Power On Self Test (POST) during boot up.

Applies the custom default settings to the computer after rebooting. Does not apply to options in the Security menu.

Restores the factory system conguration settings to the computer after rebooting. Does not apply to options in the Security menu.

Computer Setup—Security

NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.

Table 5-2 Computer Setup—Security

Option Description

Create BIOS Administrator Password

Lets you set and enable a BIOS administrator password, which controls access to the following features:

●

NOTE: Creating a BIOS user disables the Fast Boot option.

NOTE: If the password is set, it is required to change Computer Setup options, update the BIOS, and

make changes to certain plug and play settings under Windows.

Setup Menu (F10)

3rd Party Option ROM Management (F3)

Update system ROM

WMI commands that change system settings

BIOS Conguration Utility (BCU)

Alternative power-on password

Change BIOS Administrator Password

(This selection is active only if a BIOS administrator password is set.)

Create POST Power-On Password

Change POST Power-On Password (This selection

is active only if a BIOS

Lets you change the BIOS administrator password.

You must know the current password to be able to change it.

The power-on password prompt appears after a power cycle or reboot. If the user does not enter the correct power-on password, the unit will not boot.

Lets you change the POST power-on password.

You must know the current password to be able to change it.

Computer Setup (F10) Utilities 63

Table 5-2 Computer Setup—Security (continued)

Option Description

administrator password is set.)

Password Policies Let you set the guidelines for a valid password. Options include:

●

Password minimum length

●

Requires at least one symbol

●

Requires at least one number

●

Requires at least one upper case character

●

Requires at least one lower case character

●

Allow spaces

Clear Password Jumper

Select ‘Honor’ to allow or ‘Ignore’ to not allow the absence of the password jumper to clear the passwords at boot up. Default is ‘Honor’.

Security Conguration TPM Embedded Security

●

TPM Specication Version

Displays the current TPM version.

●

TPM Device

Lets you set the Trusted Platform Module as available or hidden.

●

TPM State

Select to enable the TPM.

●

ClearTPM

Select to reset the TPM to an unowned state. After the TPM is cleared, it is also turned o. To temporarily suspend TPM operations, turn the TPM o instead of clearing it.

CAUTION: Clearing the TPM resets it to factory defaults and turns it o. You will lose all created

keys and data protected by those keys.

●

TPM Activation Policy

○

F1 to boot

○

Allow user to reject

○

No prompts

BIOS SureStart

●

Verify Boot Block on every boot – Select to enable HP SureStart.

●

BIOS Data Recovery Policy – Select ‘Automatic’ or ‘Manual’ to determine data recovery process. Manual recovery is intended only for situations where forensic analysis is desired before HP SureStart recovery. When this policy is set to manual, HP SureStart will not correct any issues that are found until the manual recovery key sequence is input by the local user. This can result in a computer that is unable to boot until the manual recovery key sequence is input.

●

Dynamic Runtime Scanning of Boot Block. Veries the integrity of the BIOS boot block region several times each hour while the system is running. Default is enabled.

●

Sure Start BIOS Settings Protection. When enabled, HP Sure Start locks all critical BIOS settings and provides enhanced protection for these settings using non-volatile (ash) memory.

NOTE: An administrator password must be set to activate this setting.

64 Chapter 5 Computer Setup (F10) Utility

Table 5-2 Computer Setup—Security (continued)

Option Description

●

Enhanced HP Firmware Runtime Intrusion Prevention and Detection – enables monitoring of HP system rmware executing out of main memory while the operating system is running. Any anomalies detected in HP system rmware that is active while the operating system is running will result in a Sure Start security event being generated.

●

Sure Start Security Event Policy – controls HP Sure Start behavior upon identifying a critical security event (any modication to HP rmware) while the operating system is running.

–

Log Event Only – HP Sure Start will log all critical security events in the HP Sure Start audio log within the HP Sure Start non-volatile (ash) memory.

–

Log Event and notify user – In addition to logging all critical security events, HP Sure Start will notify the user within the operating system that a critical event has occurred.

–

Log Event and power o system – In addition to logging all critical security events, HP Sure Start will power of the system upon detecting a HP Sure Start Security Event. Due to the potential for data loss, use of this setting is only recommended in situations where security integrity of the system is a higher priority than the risk of potential data loss.

Secure Platform Management (SPM)

●

HP Sure Run Current State

●

SPM Current State

Physical Presence Interference

When selected, the user is notied at system power up when changes have been made to system security policy, and the user must manually agree to those changes before they are conrmed.

Smart Cover

Cover Removal Sensor (Disabled/Notify user/Administrator password)

Lets you disable the cover sensor or congure what action is taken if the computer cover was removed. Default is ‘Disabled’.

NOTE: Notify user alerts the user with a POST error on the rst boot after the sensor detects removal of

the cover. If the password is set, Administrator Password requires that the password be entered to boot the computer if the sensor detects that the cover has been removed.

Intel Software Guard Extensions (SGX)

Intel SGX is a set of processor code instructions from that allows user-level code to allocate private regions of memory, that unlike normal process memory is also protected from processes running at higher privilege levels.

●

Software control

●

Disable

●

Enable

Utilities Hard Drive Utilities

●

Save/Restore MBR of System Hard Drive

NOTE: Windows 10 systems are generally not formatted to include an MBR. Instead they use GUID

Partition Table (GPT) format, which better supports large hard drives.

Enabling this feature will save the Master Boot Record (MBR) of the system hard drive. If the MBR gets changed, the user will be prompted to restore the MBR. Default is disabled.

The MBR contains information needed to successfully boot from a disk and to access the data stored on the disk. Master Boot Record Security may prevent unintentional or malicious changes to the MBR, such as those caused by some viruses or by the incorrect use of certain disk utilities. It also allows you to recover the "last known good" MBR, should changes to the MBR be detected when the system is restarted.

Computer Setup (F10) Utilities 65

Table 5-2 Computer Setup—Security (continued)

Option Description

NOTE: Most operating systems control access to the MBR of the current bootable disk; the BIOS

cannot prevent changes that may occur while the operating system is running.

Restores the backup Master Boot Record to the current bootable disk. Default is disabled.

Only appears if all of the following conditions are true:

–

MBR security is enabled

–

A backup copy of the MBR has been previously saved

–

The current bootable disk is the same disk from which the backup copy was saved

CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modied

the MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved MBR if you are condent that the current bootable disk's MBR has been corrupted or infected with a virus.

●

Save/Restore GPT of System Hard Drive

Enabling this feature will save the GUID Partition Table (GPT) of the system hard drive. If the GPT is subsequently changed, the user is prompted to choose whether to restore GPT.

●

DriveLock/Automatic DriveLock

Allows you to assign or modify a master or user password for hard drives. When this feature is enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during a subsequent cold-boot sequence.

NOTE: This selection will only appear when at least one drive that supports the DriveLock feature

is attached to the system.

CAUTION: Be aware that these settings take place immediately. A save is not necessary.

CAUTION: Be sure to document the DriveLock password. Losing a DriveLock password will render a

drive permanently locked.

After you select a drive, the following options are available:

Set DriveLock Master Password. Sets the drive’s master password but does not enable DriveLock.

Enable DriveLock. Sets the drive’s user password and enables DriveLock.

●

Secure Erase

Lets you select a hard drive to completely erase.

Once a hard drive has been erased with a program that utilizes Secure Erase rmware commands, no le recovery program, partition recovery program, or other data recovery method will be able to extract data from the drive.

●

Allow OPAL Hard Drive SED Authentication

Default is disabled.

System Management Command

Restore Security Settings to Default

Allows authorized personnel to reset security settings during a service event. Default is enabled.

This action resets security devices, clears BIOS passwords (not including DriveLock), and restores settings in the Security menu to factory defaults.

66 Chapter 5 Computer Setup (F10) Utility

Computer Setup—Advanced

NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.

Table 5-3 Computer Setup—Advanced (for advanced users)

Option Heading

Display Language Lets you select the language of the menus in F10 Setup and the keyboard layout.

Scheduled Power-On This feature wakes the system up from a powered o state at a specied date and time.

Boot Options Select the devices that the computer can boot from, as well as other options, including:

●

NOTE: To drag a device to a preferred place, press Enter.

NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system has

started.

Shortcut to Temporarily Override Boot Order

To boot one time from a device other than the default device specied in Boot Order, restart the computer and press Esc (to access the Startup menu) and then F9 (Boot Menu), or only F9 (skipping the Startup menu) when the power button light turns white. After POST is completed, a list of bootable devices is displayed. Use the arrow keys to select the preferred bootable device and press Enter. The computer then boots from the selected non-default device for this one time.

Startup Delay (sec). Enabling this feature will add a user-specied delay to the POST process. One purpose for the delay is to provide additional time to activate hotkeys such as Esc for the Startup Menu or F10 for Computer Setup.

Fast Boot. Default is enabled.

USB Storage Boot. Default is enabled.

Network (PXE) Boot. Default is enabled.

After Power Loss. Default is Power O.

■

Power o—causes the computer to remain powered o when power is restored.

■

Power on—causes the computer to power on automatically as soon as power is restored.

■

Previous state—causes the computer to power on automatically as soon as power is restored, if it was on when power was lost.

NOTE: If the system is congured to ‘Power On from Keyboard Ports’ (see Power Management

Options), then this setting is forced to ‘Power On’.

Prompt on Memory Size Change. Default is enabled.

Prompt on Fixed Storage Change. Default is disabled.

Audio Alerts During Boot. Default is enabled. When disabled, most audible beeps from errors, warnings, and password prompts during boot up are suppressed.

UEFI Boot Order.

Default is enabled. Specify the order in which UEFI boot sources (such as a internal hard drive, USB hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system image.

UEFI boot sources always have precedence over legacy boot sources.

Legacy Boot Order

Specify the order in which legacy boot sources (such as a network interface card, internal hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system image.

Specify the order of attached hard drives. The rst hard drive in the order will have priority in the boot sequence and will be recognized as drive C (if any devices are attached).

Computer Setup (F10) Utilities 67

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)

Option Heading

HP Sure Recover HP Sure Recover

When enabled the system rmware honors locate and remote requests to reinstall the operating system. When disabled all requests to reinstall the operating system are ignored.

Recover from Network

If enabled the system rmware gets the recovery agent from the network. If disabled the system rmware gets the recovery agent from a local drive.

Recover after Boot Failure

If enabled and no bootable UEFI operating system is found, the system rmware will launch HP Sure Recover.

Secure Boot

Conguration

Congure Legacy Support and Secure Boot

Lets you turn o all legacy support on the computer, including booting to DOS, running legacy graphics cards, booting to legacy devices, and so on.

Lets you make sure an operating system is legitimate before booting to it, making Windows resistant to malicious modication from preboot to full operating system booting, preventing rmware attacks. UEFI and Windows Secure Boot only allow code signed by pre-approved digital certicates to run during the rmware and OS boot process.

●

Legacy Support Enable and Secure Boot Disable

●

Legacy Support Disable and Secure Boot Enable

●

Legacy Support Disable and Secure Boot Disable

Default is ‘Legacy Support Disable and Secure Boot Disable’.

Secure Boot Key Management

Lets you manage the custom key settings.

Import Custom Secure Boot keys

Default is disabled.

Clear Secure Boot Keys

Lets you delete any previously loaded custom boot keys. Clearing keys will disable secure boot. Default is disabled.

Reset Secure Boot keys to factory defaults

Default is disabled.

Enable MS UEFI CA key

Disabling this setting alters the Secure Boot key list to further restrict the allowed software components. Set this option to ‘disable’ to support Device Guard.

Ready BIOS for Device Guard Use

Requires BIOS Administrator password to be congured and Secure Boot to be enabled.

System Options Congure storage controller for Intel Optane

Enables the Intel Optane memory module.

Hyperthreading

Lets you control processor capability. Default is enabled.

Multi-processor

Use this option to disable multi-processor support under the operating system. Default is enabled.

68 Chapter 5 Computer Setup (F10) Utility

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)

Option Heading

Virtualization Technology (VTx) (Intel only)

Controls the virtualization features of the processor. Changing this setting requires turning the computer o and then back on. Default is disabled.

Virtualization Technology for Directed I/O (VTd) (Intel only)

Controls virtualization DMA remapping features of the chipset. Changing this setting requires turning the computer o and then back on. Default is disabled.

M.2 SSD

Lets you disable the M.2 solid-state drive slot. Default is enabled.

M.2 WLAN/BT

Lets you disable the wireless module slot. Default is enabled.

Allow PCIe/PCI SERR# Interrupt (enable/disable)

Allows PCI devices to report PCI/PCIe System Error signals, such as address parity errors, data parity errors, and critical errors other than parity. Default is enabled.

Power Button Override (disable/4 sec/15 sec)

Lets you disable or enable and select the number of seconds you have to hold down the power button for it to force the system to power o. Default is ‘4 sec’.

USB Type-C Connector System Software Interface (UCSI) (enable/disable)

Default is enabled.

Built-In Device Options Embedded LAN Controller

Select to show the device in the operating system. Default is enabled.

Wake On LAN

Lets you either disable the Wake On LAN feature, or congure where the computer boots, including the network or hard drive. Default is Boot to Network.

Allow No Panel conguration

When enabled, POST blink and beep codes and error messages are not generated. Default is disabled.

Video memory size

Use this option to manage graphics memory allocation. The value you choose is allocated permanently to graphics and is unavailable to the operating system.

Integrated Camera

Clear to disable the integrated camera. Default is enabled.

Audio Device

Select to show the device in the operating system. Default is enabled.

Microphone

Clear to disable the microphone. This does not aect devices plugged into audio jacks. Default is enabled.

Internal Speakers (does not aect external speakers)

Clear to disable the chassis speaker or speakers. This function is applicable to normal audio playback in the operating system and does not aect the error or warning beeps during POST. Default is enabled.

Headphone Output

Clear to disable the headphone jack. Default is enabled.

Computer Setup (F10) Utilities 69

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)

Option Heading

Increase Idle Fan Speed(%)

Sets idle fan speed percentage. This setting only changes the minimum fan speed. The fan is still automatically controlled.

M.2 USB/Bluetooth

Select to enable the M.2 controller. Default is enabled.

LAN/WLAN auto switching

Select to enable auto switching between a wired and wireless connection. Default is disabled.

Wake on WLAN

Select to enable wake on WLAN. Default is disabled.

Collaboration Buttons

Clear to disable the collaboration buttons. Default is enabled.

Button Sensitivity

Select from low, medium, or high. Default is low.

Port Options Rear USB ports

Lets you disable the ports. Default is enabled.

Right USB ports

Lets you disable the ports. Default is enabled.

USB Legacy Port Charging

Lets you enable USB charging port capability when the computer is in hibernate or shutdown mode. Default is enabled.

USB Type-C Downstream Charging

Lets you enable USB charging port capability when the computer is in hibernate or shutdown mode. Default is enabled.

Thunderbolt Type-C Ports

Lets you disable the ports. Default is enabled.

Thunderbolt Mode

Default is enabled.

Require BIOS PW to change Thunderbolt Security Level

Default is enabled.

Thunderbolt Security Level

Default is PCIe and DisplayPort - User Authorization.

Native PCIe Hot Plug

When enabled, Thunderbolt S4 Boot is disabled. Default is enabled.

SATA0

Lets you disable the connector. Default is enabled.

Restrict USB Devices

70 Chapter 5 Computer Setup (F10) Utility

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)

Option Heading

Specify the following categories of USB devices to enable:

●

Allow all USB devices (default)

●

Allow only keyboard and mouse

●

Allow all but storage devices and hubs.

When some devices are restricted, the system will disable USB ports that do not meet the allowed criteria. This feature is usually combined with similar policies within the operating system since USB devices can be moved to dierent ports. The ports disabled by the BIOS will remain disabled until the system is restarted.

Option ROM Launch Policy

Power Management Options

These policies control whether Legacy Option ROMs or UEFI drivers are loaded. Default is ‘All UEFI’.

Congure Option ROM Launch Policy

●

All legacy

●

All UEFI

●

All UEFI except video

Runtime Power Management (enable/disable)

Allows certain operating systems to reduce processor voltage and frequency when the current software load does not require the full capabilities of the processor. Default is enabled.

Extended Idle Power States (enable/disable)

Allows certain operating systems to decrease the processors power consumption when the processor is idle. Default is enabled.

S5 Maximum Power Savings (enable/disable)

Enabling this feature reduces the power of the system as much as possible in the S5 state. Power is removed from the wake up circuitry, the expansion slots, and any management features while in S5. Default is disabled.

SATA Power Management (enable/disable)

Enables or disables SATA bus and/or device power management. Default is enabled.

PCI Express Power Management (enable/disable)

Enabling this option permits the PCI Express links to use Active Power State Management (ASPM) to enter lower power states while not in use. Default is enabled.

Power On from Keyboard Ports (enable/disable)

When enabled, this feature allows a key press to power on the system when it is o (S5 state). If using a USB keyboard, it must be plugged into one of the rear ports labeled with the keyboard icon. Default is disabled.

Unique Sleep State Blink Rates (enable/disable)

This feature is designed to provide a visual indication of what sleep state the system is in. Each sleep state has a unique blink pattern. Default is disabled.

NOTE: A normal shutdown goes to the S4 state.

S0 (On) = Solid white LED.

S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) — repeated cycles of 3 blinks and a pause.

S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) — repeated cycles of 4 blinks and a pause.

Computer Setup (F10) Utilities 71

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)

Option Heading

S5 (Soft O) = LED is o.

Electronic labels Displays system labels.

Remote Management Options

Active Management (AMT) (Intel only) (enable/disable). Default is enabled.

Allows you to discover, repair, and protect networked computing devices.

USB Key Provisioning Support (enable/disable) Default is disabled.

USB Redirection Support (enable/disable). Default is enabled.

USB redirection allows USB devices plugged into a client computer to be transparently redirected to the guest operating system.

Uncongure AMT on next boot (Do Not Apply/Apply). Default is ‘Do Not Apply’.

SOL Terminal Emulation Mode (ANSI / VT100). Default is ANSI.

SOL terminal emulation mode is only activated during remote AMT redirection operations. The emulation options allow administrators to select which mode works best with their console.

Show Uncongure ME Conrmation Prompt (enable/disable). Default is enabled.

Verbose Boot Messages (enable/disable). Default is enabled.

Verbose boot shows additional logging information during the boot. mainly for debugging if something goes wrong during bootup.

Watchdog Timer (enable/disable). Default is enabled.

Allows you to set amount of time for a operating system and BIOS watchdog alert to be sent if the timers are not deactivated. BIOS watchdog is deactivated by BIOS and would indicate that a halt occurred during execution if the alert is sent to the management console. An operating system alert is deactivated by the operating system image and would indicate that a hang occurred during its initialization.

●

OS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.

●

BIOS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.

CIRA Timeout (min.) (1/2/3/4/Never)

CIRA is Customer Initiated Remote Assistance, an Intel service to help users employing Active Management Technology (AMT).

Recovering the conguration settings

This method of recovery requires that you rst perform the Save to Removable Media command with the Computer Setup (F10) Utility before Restore is needed. (See Computer Setup–Main on page 61 in the Computer Setup—File table.)

The Save to Removable Media option creates a le named HPSETUP.TXT on an inserted USB ash media device. This le can be edited to change the settings on Restore. An asterisk (*) marks the selected option for a setting.

NOTE: It is recommended that you save any modied computer conguration settings to a USB ash media

device and save the device for possible future use.

To restore the conguration, insert the USB ash media device with the saved conguration and perform the Restore from Removable Media command with the Computer Setup (F10) Utility. (See Computer Setup–Main

on page 61 in the Computer Setup—File table.)

72 Chapter 5 Computer Setup (F10) Utility

6 Using HP PC Hardware Diagnostics

Using HP PC Hardware Diagnostics Windows (select products only)

HP PC Hardware Diagnostics Windows is a Windows-based utility that allows you to run diagnostic tests to determine whether the computer hardware is functioning properly. The tool runs within the Windows operating system in order to diagnose hardware failures.

If HP PC Hardware Diagnostics Windows is not installed on your computer, rst you must download and install it. To download HP PC Hardware Diagnostics Windows, see Downloading HP PC Hardware Diagnostics

Windows on page 73.

After HP PC Hardware Diagnostics Windows is installed, follow these steps to access it from HP Help and Support or HP Support Assistant.

1. To access HP PC Hardware Diagnostics Windows from HP Help and Support:

a. Select the Start button, and then select HP Help and Support.

b. Right-click HP PC Hardware Diagnostics Windows, select More, and then select Run as

administrator.

– or –

To access HP PC Hardware Diagnostics Windows from HP Support Assistant:

a. Type support in the taskbar search box, and then select the HP Support Assistant app.

– or –

Select the question mark icon in the taskbar.

b. Select Troubleshooting and xes.

c. Select Diagnostics, and then select HP PC Hardware Diagnostics Windows.

2. When the tool opens, select the type of diagnostic test you want to run, and then follow the on-screen

instructions.

NOTE: If you need to stop a diagnostic test at any time, select Cancel.

3. When HP PC Hardware Diagnostics Windows detects a failure that requires hardware replacement, a 24-

digit Failure ID code is generated. For assistance in correcting the problem, contact support, and then provide the Failure ID code.

Downloading HP PC Hardware Diagnostics Windows

●

The HP PC Hardware Diagnostics Windows download instructions are provided in English only.

●

You must use a Windows computer to download this tool because only .exe les are provided.

Using HP PC Hardware Diagnostics Windows (select products only) 73

Downloading the latest HP PC Hardware Diagnostics Windows version

To download HP PC Hardware Diagnostics Windows, follow these steps:

1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.

2. In the HP PC Hardware Diagnostics section, select Download, and then select a location on your

computer or a USB ash drive.

The tool is downloaded to the selected location.

Downloading HP Hardware Diagnostics Windows by product name or number (select products only)

NOTE: For some products, it may be necessary to download the software to a USB ash drive by using the

product name or number.

To download HP PC Hardware Diagnostics Windows by product name or number, follow these steps:

1. Go to http://www.hp.com/support.

2. Select Get software and drivers, select your type of product, and then enter the product name or

number in the search box that is displayed.

3. In the HP PC Hardware Diagnostics section, select Download, and then select a location on your

computer or a USB ash drive.

The tool is downloaded to the selected location.

Installing HP PC Hardware Diagnostics Windows

To install HP PC Hardware Diagnostics Windows, follow these steps:

▲

Navigate to the folder on your computer or the ash drive where the .exe le was downloaded, doubleclick the .exe le, and then follow the on-screen instructions.

Using HP PC Hardware Diagnostics UEFI

NOTE: For Windows 10 S computers, you must use a Windows computer and a USB ash drive to download

and create the HP UEFI support environment because only .exe les are provided. For more information, see

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive on page 75.

HP PC Hardware Diagnostics UEFI (Unied Extensible Firmware Interface) allows you to run diagnostic tests to determine whether the computer hardware is functioning properly. The tool runs outside the operating system so that it can isolate hardware failures from issues that are caused by the operating system or other software components.

If your PC will not boot into Windows, you can use HP PC Hardware Diagnostics UEFI to diagnose hardware issues.

When HP PC Hardware Diagnostics UEFI detects a failure that requires hardware replacement, a 24-digit Failure ID code is generated. For assistance in correcting the problem, contact support, and provide the Failure ID code.

NOTE: To start diagnostics on a convertible computer, your computer must be in notebook mode, and you

must use the attached keyboard.

NOTE: If you need to stop a diagnostic test, press esc.

74 Chapter 6 Using HP PC Hardware Diagnostics

Starting HP PC Hardware Diagnostics UEFI

To start HP PC Hardware Diagnostics UEFI, follow these steps:

1. Turn on or restart the computer, and quickly press esc.

2. Press f2.

The BIOS searches three places for the diagnostic tools, in the following order:

a. Connected USB ash drive

NOTE: To download the HP PC Hardware Diagnostics UEFI tool to a USB ash drive, see

Downloading the latest HP PC Hardware Diagnostics UEFI version on page 75.

b. Hard drive

c. BIOS

3. When the diagnostic tool opens, select the type of diagnostic test you want to run, and then follow the

on-screen instructions.

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive

Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive can be useful in the following situations:

●

HP PC Hardware Diagnostics UEFI is not included in the preinstall image.

●

HP PC Hardware Diagnostics UEFI is not included in the HP Tool partition.

●

The hard drive is damaged.

NOTE: The HP PC Hardware Diagnostics UEFI download instructions are provided in English only, and you

must use a Windows computer to download and create the HP UEFI support environment because only .exe les are provided.

Downloading the latest HP PC Hardware Diagnostics UEFI version

To download the latest HP PC Hardware Diagnostics UEFI version to a USB ash drive:

1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.

2. In the HP PC Hardware Diagnostics UEFI section, select Download UEFI Diagnostics, and then select

Run.

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

NOTE: For some products, it may be necessary to download the software to a USB ash drive by using the

product name or number.

To download HP PC Hardware Diagnostics UEFI by product name or number (select products only) to a USB ash drive:

1. Go to http://www.hp.com/support.

2. Enter the product name or number, select your computer, and then select your operating system.

3. In the Diagnostics section, follow the on-screen instructions to select and download the specic UEFI

Diagnostics version for your computer.

Using HP PC Hardware Diagnostics UEFI 75

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

Remote HP PC Hardware Diagnostics UEFI is a rmware (BIOS) feature that downloads HP PC Hardware Diagnostics UEFI to your computer. It can then execute the diagnostics on your computer, and it may upload results to a precongured server. For more information on Remote HP PC Hardware Diagnostics UEFI, go to

http://www.hp.com/go/techcenter/pcdiags, and then select Find out more.

Downloading Remote HP PC Hardware Diagnostics UEFI

NOTE: HP Remote PC Hardware Diagnostics UEFI is also available as a Softpaq that can be downloaded to a

server.

Downloading the latest Remote HP PC Hardware Diagnostics UEFI version

To download the latest Remote HP PC Hardware Diagnostics UEFI version, follow these steps:

1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.

2. In the HP PC Hardware Diagnostics UEFI section, select Download Remote Diagnostics, and then select

Run.

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

NOTE: For some products, it may be necessary to download the software by using the product name or

number.

To download HP Remote PC Hardware Diagnostics UEFI by product name or number, follow these steps:

1. Go to http://www.hp.com/support.

2. Select Get software and drivers, select your type of product, enter the product name or number in the

search box that is displayed, select your computer, and then select your operating system.

3. In the Diagnostics section, follow the on-screen instructions to select and download the Remote UEFI

version for the product.

Customizing Remote HP PC Hardware Diagnostics UEFI settings

Using the Remote HP PC Hardware Diagnostics setting in Computer Setup (BIOS), you can perform the following customizations:

●

Set a schedule for running diagnostics unattended. You can also start diagnostics immediately in interactive mode by selecting Execute Remote HP PC Hardware Diagnostics.

●

Set the location for downloading the diagnostic tools. This feature provides access to the tools from the HP website or from a server that has been precongured for use. Your computer does not require the traditional local storage (such as a disk drive or USB ash drive) to run remote diagnostics.

●

Set a location for storing the test results. You can also set the user name and password settings used for uploads.

●

Display status information about the diagnostics run previously.

To customize Remote HP PC Hardware Diagnostics UEFI settings, follow these steps:

1. Turn on or restart the computer, and when the HP logo appears, press f10 to enter Computer Setup.

2. Select Advanced, and then select Settings.

76 Chapter 6 Using HP PC Hardware Diagnostics

3. Make your customization selections.

4. Select Main, and then Save Changes and Exit to save your settings.

Your changes take eect when the computer restarts.

Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) 77

7 Troubleshooting without diagnostics

This chapter provides information on how to identify and correct minor problems, such as USB devices, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.

NOTE: For information on specic error messages that may appear on the screen during Power-On Self-Test

(POST) at startup, refer to POST error messages and diagnostic front panel LEDs and audible codes

on page 102.

Safety and comfort

WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may

result in discomfort or serious injury. Refer to the Safety & Comfort Guide at http://www.hp.com/ergo for more information on choosing a workspace and creating a safe and comfortable work environment. For more information, refer to the Safety & Regulatory Information guide.

Before you call for technical support

If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact problem before calling for technical support.

●

Run the HP diagnostic tool.

●

Run the hard drive self-test in Computer Setup. Refer to Computer Setup (F10) Utility on page 59 for more information.

●

Check the Power LED on the front of the computer to see if it is ashing red. The ashing lights are error codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel

LEDs and audible codes on page 102 for more information.

●

If you are working on a network, plug another computer with a dierent cable into the network connection. There may be a problem with the network plug or cable.

●

If you recently added new hardware, remove the hardware and see if the computer functions properly.

●

If you recently installed new software, uninstall the software and see if the computer functions properly.

●

Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting the operating system, use “Last Known Conguration.”

●

Refer to the comprehensive online technical support at http://www.hp.com/support.

●

Refer to Helpful hints on page 79 in this guide.

To assist you in resolving problems online, HP Instant Support Professional Edition provides you with selfsolve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.

Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online support information, software and drivers, proactive notication, and worldwide community of peers and HP experts.

If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly:

78 Chapter 7 Troubleshooting without diagnostics

●

Be in front of your computer when you call.

●

Write down the computer serial number and product ID number before calling.

●

Spend time troubleshooting the problem with the service technician.

●

Remove any hardware that was recently added to your system.

●

Remove any software that was recently installed.

●

Restore the system from the Recovery Disc Set that you created or restore the system to its original factory condition in System Software Requirement Disks (SSRD).

CAUTION: Restoring the system will erase all data on the hard drive. Be sure to back up all data les before

running the restore process.

NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized service provider

or dealer.

Helpful hints

If you encounter problems with the computer or software, see the following list of general suggestions before taking further action:

●

Check that the computer is plugged into a working electrical outlet.

●

Check that the computer is turned on and the white power light is on.

●

Check the power LED on the front of the computer to see if it is ashing red. The ashing lights are error codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel

LEDs and audible codes on page 102 for more information.

●

Press and hold any key. If the system beeps, then the keyboard should be operating correctly.

●

Check all cable connections for loose connections or incorrect connections.

●

Wake the computer by pressing any key on the keyboard or pressing the power button. If the system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if it is set to power on automatically as soon as power is restored in Computer Setup. If it does not restart, press the power button to start the computer.

●

Be sure that all the needed device drivers have been installed. For example, if you are using a printer, you need a driver for that model printer.

●

Remove all bootable media (such as a USB device) from the system before turning it on.

●

If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system.

CAUTION: When the computer is plugged into an AC power source, there is always voltage 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.

Helpful hints 79

Solving general problems

You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system

board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Cannot access the Computer Setup (F10) Utility when booting the computer.

Cause Solution

The Computer Setup (F10) Utility is set to “fast boot” causing the F10 access screen to display too briey when booting the computer.

Computer appears locked up and will not turn o when the power button is pressed.

Cause Solution

Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds

Computer will not respond to keyboard or mouse.

Cause Solution

Computer is in Sleep state. To resume from Sleep state, press the power button.

Before turning on the computer, press and hold F10. Turn on the computer and continue to hold F10 until the Computer Setup (F10) Utility is displayed.

- or –

Follow the Windows instructions for rebooting the computer into the Computer Setup (F10) Utility.

until the computer turns o.

2. Disconnect the power cord from the electrical outlet.

CAUTION: When attempting to resume from Sleep state, do not

hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

System has locked up. Restart computer.

USB cables may not be seated properly. Disconnect, then reconnect USB cables to keyboard and mouse.

Computer date and time display is incorrect.

Cause Solution

RTC (real-time clock) battery may need to be replaced.

NOTE: Connecting the computer to a live AC outlet prolongs the

life of the RTC battery.

80 Chapter 7 Troubleshooting without diagnostics

Reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.

Computer date and time display is incorrect.

Cause Solution

To access Control Panel in Windows 10, type control panel in the taskbar search box, and then select Control Panel.

There is no sound or sound volume is too low.

Cause Solution

System volume may be set low or muted. 1. Check the front panel to see if an amber light indicates the

system has been muted. Tap the touch-sensitive button to toggle the mute on and o.

2. Check the Computer Setup settings to make sure the

internal system speaker is not muted (this setting does not aect the external speakers).

3. Make sure the external speakers are properly connected and

powered on and that the speakers' volume control is set correctly.

4. Use the system volume control available in the operating

system to make sure the speakers are not muted or to increase the volume.

Cannot remove computer cover or access panel.

Cause Solution

Smart Cover Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.

In case of forgotten password, power loss, or computer malfunction, you must manually disable the Smart Cover lock . A key to unlock the Smart Cover Lock is not available from HP. Keys are typically available from a hardware store.

Poor performance.

Cause Solution

Processor is too hot. 1. Make sure airow to the computer is not blocked. Leave a

10.2-cm (4-inch) clearance on all vented sides of the computer to permit the required airow.

2. Make sure fans are connected and working properly (some

fans only operate when needed).

3. Make sure the processor heat sink is installed properly.

Hard drive is full. Transfer data from the hard drive to create more space on the

hard drive.

Low on memory. Add more memory.

Hard drive fragmented. Defragment hard drive.

Program previously accessed did not release reserved memory back to the system.

Restart the computer.

Solving general problems 81

Poor performance.

Cause Solution

Virus resident on the hard drive. Run virus protection program.

Too many applications running. 1. Close unnecessary applications to free up memory.

2. Add more memory.

3. Some applications run in the background and can be closed

by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup:

In Windows 10:

a. Type msconfig in the taskbar search box, and then

select mscong.

b. On the Startup tab of the System Conguration Utility,

click Open Task Manager.

c. Select applications that you do not want to launch

automatically, and the click Disable.

Some software applications, especially games, are stressful on the graphics subsystem.

Cause unknown. Restart the computer.

Computer powered o automatically and the Power LED ashes red four times and then white two times.

Cause Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

The heat sink is not properly attached to the processor.

System does not power on and the LEDs on the front of the computer are not ashing.

1. Lower the display resolution for the current application or

consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application.

2. Add more memory.

3. Upgrade the graphics solution.

1. Ensure that the computer air vents are not blocked and the

processor cooling fan is running.

2. Open the access panel, press the power button, and see if

the processor fan (or other system fan) spins. If the fan does not spin, make sure the fan cable is plugged onto the system board header.

3. If fan a plugged in and not spinning, replace it.

Cause Solution

System unable to power on. Press and hold the power button for less than 4 seconds. If the

82 Chapter 7 Troubleshooting without diagnostics

hard drive LED turns white, then:

1. If equipped with a voltage selector, check that the voltage

selector (located on the rear of the power supply) is set to the appropriate voltage. Proper voltage setting depends on your region.

System does not power on and the LEDs on the front of the computer are not ashing.

Cause Solution

2. Remove the expansion cards one at a time until the 5V_aux

light on the system board turns on.

3. Replace the system board.

Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on white then:

1. Check that the unit is plugged into a working AC outlet.

2. Open the access panel and check that the power button

cable is properly connected to the system board.

3. Check that the power supply cables are properly connected

to the system board.

4. Check to see if the 5V_aux light on the system board is

turned on. If it is turned on, then replace the power button assembly.

5. If the 5V_aux light on the system board is o, then replace

the power supply.

6. Replace the system board.

Solving power problems

Common causes and solutions for power problems are listed in the following table.

Power supply shuts down intermittently.

Cause Solution

If equipped with a voltage selector, voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V).

Power supply will not turn on because of internal power supply fault.

Computer powered o automatically and the Power LED ashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fth iteration but LEDs continue ashing.)

Computer powered o automatically and the Power LED ashes red four times and then white two times.

Cause Solution

Processor thermal protection activated:

A fan may be blocked or not turning.

The heat sink is not properly attached to the processor.

Select the proper AC voltage using the selector switch.

Replace the power supply.

1. Ensure that the computer air vents are not blocked and the

processor cooling fan is running.

2. Open the access panel, press the power button, and see if

the processor fan (or other system fan) spins. If the fan does not spin, make sure the fan cable is plugged onto the system board header.

3. If fan a plugged in and not spinning, replace it.

Solving power problems 83

Power LED ashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fth iteration but LEDs continue ashing.)

Computer powered o automatically and the Power LED ashes red three times and then white four times.

Cause Solution

Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the voltage

Solving hard drive problems

selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region.

2. Open the access panel and ensure the power supply cable is

seated into the connector on the system board.

3. Check if a device is causing the problem by removing ALL

attached devices (such as hard drives or optical drives and expansion cards). Power on the system. If the system enters POST, then power o and replace one device at a time and repeat this procedure until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly.

4. Replace the power supply.

5. Replace the system board.

Hard drive error occurs.

Cause Solution

Hard disk has bad sectors or has failed. 1. In Windows 10, type file in the taskbar search box, and

then select File Explorer from the list of applications. In the left column, expand This PC, right-click on a drive, select

Properties, and then select the Tools tab. Under Error checking click Check.

2. Use a utility to locate and block usage of bad sectors. If

necessary, reformat the hard disk.

Disk transaction problem.

Cause Solution

Either the directory structure is bad or there is a problem with a

le.

Drive not found (identied).

Cause Solution

In Windows 10, type file in the taskbar search box, and then select File Explorer from the list of applications. In the left column, expand This PC, right-click on a drive, select Properties, and then select the Tools tab. Under Error checking click Check.

Cable could be loose. Check cable connections.

The system may not have automatically recognized a newly installed device.

84 Chapter 7 Troubleshooting without diagnostics

See reconguration directions in the Solving hardware installation

problems on page 89 section. If the system still does not

Drive not found (identied).

Cause Solution

recognize the new device, check to see if the device is listed within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem.

If this is a newly installed drive, run the Computer Setup utility and try adding a POST delay under Advanced > Boot Options.

The device is attached to a SATA port that has been hidden in Computer Setup.

Drive responds slowly immediately after power-up. Run Computer Setup and increase the POST Delay in Advanced >

Nonsystem disk/NTLDR missing message.

Cause Solution

The system is trying to start from the hard drive but the hard drive may have been damaged.

System les missing or not properly installed. 1. Insert bootable media and restart the computer.

Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive entry in

Bootable hard drive is not attached as rst in a multi-hard drive

conguration.

Run the Computer Setup utility and ensure Device Available is selected for the device's SATA port in Advanced > Port Options.

Boot Options.

▲ Perform Drive Protection System (DPS) testing in system

ROM.

2. Boot to the windows installation media and select the

recovery option. If only a restore kit is available, then select the File Backup Program option, and then restore the system.

3. Install system les for the appropriate operating system.

the Advanced > Boot Options list.

If attempting to boot from a hard drive, ensure it is attached to the system board dark blue SATA connector.

Bootable hard drive is not listed rst in the Boot Order. Run the Computer Setup utility and select Advanced > Boot

Options and ensure the bootable hard drive is listed immediately under the Hard Drive entry.

Computer will not boot from hard drive.

Cause Solution

The device is attached to a SATA port that has been hidden in Computer Setup.

Boot order is not correct. Run the Computer Setup utility and change boot sequence in

Hard drive is damaged. Observe if the front panel Power LED is blinking RED and if any

1. Check SATA cable connections.

2. Run the Computer Setup utility and ensure Device Available

is selected for the device's SATA port in Advanced > Port Options.

Advanced > Boot Options.

beeps are heard. See POST error messages and diagnostic front

panel LEDs and audible codes on page 102 to determine possible

causes for the blinking red and beep codes.

See the Worldwide Limited Warranty for terms and conditions.

Solving hard drive problems 85

Computer seems to be locked up.

Cause Solution

Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not

Solving audio problems

If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table.

Sound cuts in and out.

Cause Solution

Processor resources are being used by other open applications. Shut down all open processor-intensive applications.

Sound does not come out of the speaker or headphones.

respond.

2. Attempt the normal Windows “Shut Down” procedure. If this

fails, press the power button for four or more seconds to turn o the power. To restart the computer, press the power button again.

Cause Solution

Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make sure

that Mute is not selected and use the volume slider to adjust the volume. This can also be performed using the touch-sensitive buttons on the front of the computer.

Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Advanced > Built-in Device

Options.

The external speakers are not turned on. Turn on the external speakers.

Headphones or devices connected to the line-out connector mute the internal speaker.

Computer is in Sleep state. Press the power button to resume from Sleep state.

Internal speaker is disabled in Computer Setup. Enable the internal speaker in Computer Setup. Select Advanced >

Some applications can select which audio output device is used. Make sure the application has selected the correct audio device.

The operating system controls may be set to use a dierent audio device as the default output device than what is expected.

Turn on and use headphones or external speakers, if connected, or disconnect headphones or external speakers.

CAUTION: When attempting to resume from Sleep state, do not

hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

Built-in Device Options.

Set the operating system to use the correct audio device.

86 Chapter 7 Troubleshooting without diagnostics

Computer appears to be locked up while recording audio.

Cause Solution

The hard disk may be full. Before recording, make sure there is enough free space on the

hard disk. You can also try recording the audio le in a compressed format.

Line-in jack is not functioning properly.

Cause Solution

Jack has been recongured in the audio driver or application software.

Solving printer problems

If you encounter printer problems, see the documentation that came with the printer and to the common causes and solutions listed in the following table.

Printer will not print.

Cause Solution

Printer is not turned on and online. Turn the printer on and make sure it is online.

The correct printer drivers for the application are not installed. 1. Install the correct printer driver for the application.

If you are on a network, you may not have made the connection to the printer.

In the audio driver or application software, recongure the jack or set the jack to its default value.

2. Try printing using the MS-DOS command:

DIR C:\ > [printer port]

where [printer port] is the address of the printer being used. If the printer works, reload the printer driver.

To run MS-DOS commands, press the Windows key + r, type cmd in the Open box, and then click OK.

Make the proper network connections to the printer.

Printer may have failed. Run printer self-test.

Printer will not turn on.

Cause Solution

The cables may not be connected properly. Reconnect all cables and check the power cord and electrical

outlet.

Printer prints garbled information.

Cause Solution

The correct printer driver for the application is not installed. Install the correct printer driver for the application.

Solving printer problems 87

Printer prints garbled information.

Cause Solution

The cables may not be connected properly. Reconnect all cables.

Printer memory may be overloaded. Reset the printer by turning it o for one minute, then turn it back

on.

Printer will not print.

Cause Solution

The printer may be out of paper. Check the paper tray and rell it if it is empty.

Solving keyboard and mouse problems

If you encounter keyboard or mouse problems, see the documentation that came with the equipment and to the common causes and solutions listed in the following table.

Keyboard commands and typing are not recognized by the computer.

Cause Solution

Keyboard connector is not properly connected. Shut down the computer, reconnect the keyboard, and then

restart the computer.

Program in use has stopped responding to commands. Shut down your computer using the mouse and then restart the

computer.

Keyboard needs repairs. See the Worldwide Limited Warranty for terms and conditions.

Computer is in Sleep state. Press the power button to resume from Sleep state.

CAUTION: When attempting to resume from Sleep date, do not

hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

Mouse does not respond to movement or is too slow.

Cause Solution

Mouse connector is not properly plugged into the back of the computer.

Shut down the computer using the keyboard.

Windows 10:

1. Press the Ctrl and Esc keys at the same time (or press the Windows logo key) to display the Start menu.

2. Use the arrow keys to scroll to and select the power icon at

the top right on the menu, and then press Enter.

3. Use the arrow keys to select Shut Down, and then press

Enter.

4. After the shutdown is complete, plug the mouse connector

into the back of the computer (or the keyboard) and restart.

88 Chapter 7 Troubleshooting without diagnostics

Mouse does not respond to movement or is too slow.

Cause Solution

Program in use has stopped responding to commands. Shut down the computer using the keyboard then restart the

computer.

Mouse may need repair. See the Worldwide Limited Warranty for terms and conditions.

Computer is in Sleep state. Press the power button to resume from Sleep state.

CAUTION: When attempting to resume from Sleep state, do not

hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

If using a wireless mouse, you may need resynchronize the mouse with the computer.

Follow the instructions that came with the mouse.

Solving hardware installation problems

You may need to recongure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows automatically recognizes the device and congures the computer. If you install a non-plug and play device, you must recongure the computer after completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen.

To open the Add Hardware Wizard, open a Command Prompt and open hdwwiz.exe.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system

A new device is not recognized as part of the system.

Cause Solution

Cable(s) of new external device are loose or power cables are unplugged.

Power switch of new external device is not turned on. Turn o the computer, turn on the external device, then turn on

Ensure that all cables are properly and securely connected and that pins in the cable or connector are not bent down.

the computer to integrate the device with the computer system.

When the system advised you of changes to the conguration, you did not accept them.

A plug and play board may not automatically congure when added if the default conguration conicts with other devices.

USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that Device available

Reboot the computer and follow the instructions for accepting the changes.

Use Windows Device Manager to deselect the automatic settings for the board and choose a basic conguration that does not cause a resource conict. You can also use Computer Setup to recongure or disable devices to resolve the resource conict.

To access Device Manager in Windows 10, type device

manager in the taskbar search box, and then select Device Manager from the list of applications.

is selected for appropriate USB ports under Advanced > Port Options.

Solving hardware installation problems 89

Computer will not start.

Cause Solution

Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location.

Power LED ashes Red three times and then white two times.

Cause Solution

Memory is installed incorrectly or is bad. CAUTION: To avoid damage to the DIMMs or the system board,

1. Review the documentation that came with the system to

determine if you are using the correct memory modules and to verify the proper installation.

NOTE: DIMM1 or XMM1 must always be installed. DIMM1

must be installed before DIMM3.

2. Observe the beeps and LED lights on the front of the

computer. Beeps and ashing LEDs are codes for specic problems.

3. If you still cannot resolve the issue, contact Customer

Support.

you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module.

1. Reseat DIMMs. Power on the system.

2. Replace DIMMs one at a time to isolate the faulty module.

NOTE: DIMM1 or XMM1 must always be installed. DIMM1

must be installed before DIMM3.

3. Replace third-party memory with HP memory.

4. Replace the system board.

Solving network problems

Some common causes and solutions for network problems are listed in the following table. These guidelines do not discuss the process of debugging the network cabling.

Network driver does not detect network controller.

Cause Solution

Network controller is disabled. 1. Run Computer Setup and enable network controller.

Incorrect network driver. Check the network controller documentation for the correct driver

90 Chapter 7 Troubleshooting without diagnostics

2. Enable the network controller in the operating system using

Device Manager.

To access Device Manager in Windows 10, type device

manager in the taskbar search box, and then select Device Manager from the list of applications.

or obtain the latest driver from the manufacturer’s Web site.

Network status link light never ashes.

NOTE: The network status light is supposed to ash when there is network activity.

Cause Solution

No active network is detected. Check cabling and network equipment for proper connection.

Network controller is not set up properly. Check for the device status within Windows, such as Device

Manager for driver load and the Network Connections applet within Windows for link status.

To access Device Manager in Windows 10, type device

manager in the taskbar search box, and then select Device Manager from the list of applications.

Network controller is disabled. 1. Run Computer Setup and enable network controller.

2. Enable the network controller in the operating system using

Device Manager.

To access Device Manager in Windows 10, type device

manager in the taskbar search box, and then select Device Manager from the list of applications.

Network driver is not properly loaded. Reinstall network drivers.

System cannot autosense the network. Disable auto-sensing capabilities and force the system into the

correct operating mode.

Diagnostics reports a failure.

Cause Solution

The cable is not securely connected. Ensure that the cable is securely attached to the network

connector and that the other end of the cable is securely attached to the correct device.

The cable is attached to the incorrect connector. Ensure that the cable is attached to the correct connector.

There is a problem with the cable or a device at the other end of the cable.

The network controller is defective. Contact an authorized service provider.

Diagnostics passes, but the computer does not communicate with the network.

Cause Solution

Network drivers are not loaded, or driver parameters do not match current conguration.

The network controller is not congured for this computer. Select the Network and Sharing Center icon in the Control Panel

Ensure that the cable and device at the other end are operating correctly.

Make sure the network drivers are loaded and that the driver parameters match the conguration of the network controller.

Make sure the correct network client and protocol is installed.

and congure the network controller.

To access Control Panel in Windows 10, type control panel in the taskbar search box, and then select Control Panel from the list of applications.

Solving network problems 91

Network controller stopped working when an expansion board was added to the computer.

Cause Solution

The network controller requires drivers. Verify that the drivers were not accidentally deleted when the

drivers for a new expansion board were installed.

Network controller stops working without apparent cause.

Cause Solution

The les containing the network drivers are corrupted. Reinstall the network drivers.

If necessary, download the softpaq from the web (from a dierent computer).

The cable is not securely connected. Ensure that the cable is securely attached to the network

connector and that the other end of the cable is securely attached to the correct device.

The network controller is defective. Contact an authorized service provider.

Cannot connect to network server when attempting Remote System Installation.

Cause Solution

The network controller is not congured properly. Verify Network Connectivity, that a DHCP Server is present, and

System setup utility reports unprogrammed EEPROM.

Cause Solution

Unprogrammed EEPROM. Contact an authorized service provider.

Solving memory problems

If you encounter memory problems, some common causes and solutions are listed in the following table.

CAUTION: Power may still be supplied to the DIMMs when the computer is turned o (depending on the

Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a memory module.

For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system.

NOTE: The memory count will be aected by congurations with the Management Engine (ME) enabled. The

ME uses 8MB of system memory in single channel mode or 16MB of memory in dual-channel mode to download, decompress, and execute the ME rmware for Out-of-Band (OOB), third-party data storage, and other management functions.

that the Remote System Installation Server contains the NIC drivers for your NIC.

92 Chapter 7 Troubleshooting without diagnostics

Hp 400 G4 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Product features

Overview

HP ProOne 400 23.8-inch components

Front components

Side components

Rear components

Bottom components

HP ProOne 400 20-inch components

Front components

Side components

Rear components

Bottom components

Labels

2 Illustrated parts catalog

System parts

Mass storage devices

Processors and memory modules

Keyboards and mice

Electrostatic discharge information

Generating static

Preventing electrostatic damage to equipment

Personal grounding methods and equipment

Grounding the work area

Recommended materials and equipment

Operating guidelines

Routine care

General cleaning safety precautions

Cleaning the Computer Case

Cleaning the keyboard

Cleaning the display

Cleaning the mouse

Service considerations

Tools and software requirements

Screws

Cables and connectors

Hard Drives

Lithium coin cell battery

SATA hard drive cables

SATA data cable

Cable management

4 Removal and Replacement Procedures

Preparing to disassemble the computer

Stand

VESA bracket

Rear port cover

Locating internal components under the rear port cover

Hard drive

Optical drive

M.2 solid-state drive

Memory

Battery

WLAN module

Option board

Hood sensor

Fan assembly

Heat sink

Processor

System board

System board callouts

Speakers

23.8-models

20-models

Power button board

Rear enclosure and display assembly

Rear enclosure and display assembly in 23.8-inch models

Display panel in 20-inch models

Webcam

23.8-inch models

20-inch models

Antennas in 23.8-inch models

5 Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Using Computer Setup (F10) Utilities

Computer Setup–Main

Computer Setup—Security

Computer Setup—Advanced