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.
First Edition: July 2017
Document Part Number: L01395-001
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.
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
Front components .................................................................................................................................................. 2
Side components ................................................................................................................................................... 3
2 Illustrated parts catalog ................................................................................................................................ 6
System parts .......................................................................................................................................................... 6
Mass storage devices ............................................................................................................................................. 8
Processors and memory modules ......................................................................................................................... 9
Keyboards and mice ............................................................................................................................................. 10
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 11
Electrostatic discharge information .................................................................................................................... 11
Routine care ......................................................................................................................................................... 14
General cleaning safety precautions ................................................................................................ 14
Cleaning the Computer Case ............................................................................................................. 15
Cleaning the keyboard ....................................................................................................................... 15
Cleaning the display .......................................................................................................................... 15
Cleaning the mouse ........................................................................................................................... 16
Service considerations ......................................................................................................................................... 16
Tools and software Requirements .................................................................................................... 16
Cables and connectors ...................................................................................................................... 16
Hard Drives ........................................................................................................................................ 16
SATA hard drive cables ......................................................................................................................................... 18
SATA data cable ................................................................................................................................. 18
4 Removal and Replacement Procedures .......................................................................................................... 19
Preparing to disassemble the computer ............................................................................................................. 19
Attaching and removing a stand ......................................................................................................................... 20
Attaching and removing an easel stand ........................................................................................... 20
Attaching an easel stand ................................................................................................ 20
Removing an easel stand ................................................................................................ 20
Attaching and removing an adjustable height stand ........................................................................ 21
Attaching an adjustable height stand ............................................................................ 21
Removing an adjustable height stand ............................................................................ 22
Rear port cover .................................................................................................................................................... 23
VESA mount cover ................................................................................................................................................ 25
System board ....................................................................................................................................................... 41
System board callouts ......................................................................................................................................... 44
VESA mounting bracket ....................................................................................................................................... 45
Fan assembly ....................................................................................................................................................... 46
Top trim ................................................................................................................................................................ 48
Right trim ............................................................................................................................................................. 51
Left trim ............................................................................................................................................................... 52
Feet, bottom panel and trim ................................................................................................................................ 53
Recovering the Conguration Settings ............................................................................................................... 72
6 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 73
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 74
7 Troubleshooting without diagnostics ............................................................................................................ 75
Safety and comfort .............................................................................................................................................. 75
Before you call for technical support .................................................................................................................. 75
Solving general problems .................................................................................................................................... 77
Solving power problems ...................................................................................................................................... 81
Solving hard drive problems ................................................................................................................................ 82
8 Backing up, restoring, and recovering ........................................................................................................... 95
Creating recovery media and backups ................................................................................................................ 95
Creating HP Recovery media (select products only) ......................................................................... 95
Using Windows tools ........................................................................................................................................... 96
Restore and recovery ........................................................................................................................................... 97
Recovering using HP Recovery Manager ........................................................................................... 97
What you need to know before you get started ............................................................. 97
Using the HP Recovery partition (select products only) ................................................. 98
Using HP Recovery media to recover .............................................................................. 98
Changing the computer boot order ................................................................................ 99
Removing the HP Recovery partition (select products only) ......................................... 99
vii
9 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 100
POST numeric codes and text messages .......................................................................................................... 100
Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 105
10 Password security and resetting CMOS ...................................................................................................... 107
Resetting the password jumper ........................................................................................................................ 107
Clearing and resetting the BIOS ........................................................................................................................ 109
Appendix A Power cord set requirements ....................................................................................................... 110
General requirements ........................................................................................................................................ 110
Japanese power cord requirements .................................................................................................................. 110
Questions and answers ..................................................................................................................................... 116
Using HP Sure Start (select models only) .......................................................................................................... 117
Appendix C Specications ............................................................................................................................. 118
Index ........................................................................................................................................................... 119
viii
1Product features
Overview
CAUTION: When the All One (AiO) is mounted using a VESA arm, horizontal operation of the AiO is not
supported and may lead to thermal issues.
NOTE: For the latest specications or additional specications on this product, go to
http://www.hp.com/go/ quickspecs/ and search for your specic display model to nd the model-specic
QuickSpecs.
Overview1
Front components
ComponentComponent
1Webcam LED3Webcam microphone
2Webcam lens4Speakers
2Chapter 1 Product features
Side components
ComponentComponent
1Power button5HP SD media card reader (optional)
2USB Type-A charging ports6Optical disc drive
3USB Type-A ports7Optical disc drive eject button
4Headset jack
Side components3
Rear components
ComponentComponent
1Security cable slot6DisplayPort port
2Serial port7USB Type-A ports (2)
3PS/2 keyboard connector8USB Type-A ports (2)
4PS/2 mouse connector9RJ-45 (network) jack
5Power connector
4Chapter 1 Product features
Labels
The labels axed 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 axed to the bottom of
the computer.
1.Microsoft® Certicate of Authenticity label (select models only prior to Windows 8)—Contains the
Windows Product Key. You may need the Product Key to update or troubleshoot the operating system.
HP platforms preinstalled with Windows 8 or Windows 8.1 do not have the physical label, but have a
Digital Product Key electronically installed.
NOTE: This Digital Product Key is automatically recognized and activated by Microsoft Operating
Systems on a reinstall of the Windows 8 or Windows 8.1 operating system with HP-approved recovery
methods.
2.Service label—Provides important information to identify your computer. When contacting support, you
will probably be asked for the serial number, and possibly for the product number or the model number.
Locate these numbers before you contact support.
Component
(1)Serial number
(2)Product number
(3)Warranty period
3.Serial number label
Labels5
2Illustrated 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.
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 aected 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.
Electrostatic discharge information11
Generating static
The following table shows that:
●
Dierent activities generate dierent amounts of static electricity.
●
Static electricity increases as humidity decreases.
Relative Humidity
Event55%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.
NOTE: 700 volts can degrade a product.
Preventing electrostatic damage to equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of
sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric
components and accessories.
●
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
7,500 V
3,000 V
400 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
●
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.
12Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
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
MethodVoltage
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.
●
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.
Recommended materials and equipment
Materials and equipment that are recommended for use in preventing static electricity include:
1,500
7,500
15,000
●
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
Electrostatic discharge information13
●
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 airow.
●
Never restrict the airow 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 airow.
●
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 airow. 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.
●
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.
14Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
Cleaning the Computer Case
Follow all safety precautions in General cleaning safety precautions on page 14 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 airow.
Cleaning the keyboard
Follow all safety precautions in General cleaning safety precautions on page 14 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 15.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 14
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.
●
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 conned 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 15.
Routine care15
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 15.
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
●
Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)
●
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●
Phillips #2 screwdriver
●
Diagnostics software
●
Tamper-resistant T-15 wrench
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and may
be of dierent 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
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.
16Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
●
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 11
●
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 considerations17
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 overexed. 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.
18Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
4Removal 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.If a cable lock is installed on the rear of the unit, remove the lock.
5.Disconnect all other attached cables from the back of the computer.
6.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.
Preparing to disassemble the computer19
Attaching and removing a stand
Two stands are available for the computer:
●
Attaching and removing an easel stand
●
Attaching and removing an adjustable height stand
Attaching and removing an easel stand
Attaching an easel stand
To install the stand:
1.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 bezel and screen surface from scratches or other damage.
2.Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the
computer (1).
3.Rotate the stand down until it clicks into place (2).
Removing an easel stand
To remove the stand:
1.Remove all removable media, such as optical discs or USB ash drives, from the computer.
2.Turn o the computer properly through the operating system, then turn o any external devices.
3.Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4.Place the computer face down on a soft at surface. HP recommends that you set down a blanket, towel,
or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5.Remove the rear port cover, if it is installed. For instructions, see Rear port cover on page 23.
6.Press the release latch under the stand (1).
20Chapter 4 Removal and Replacement Procedures
7.Lift the stand up (2), and then pull the stand hooks out of the computer (3).
Attaching and removing an adjustable height stand
Attaching an adjustable height stand
To install the stand:
1.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 bezel and screen surface from scratches or other damage.
2.Engage the hooks in the top of the stand in the two large holes in the upper part of the back of the
computer (1).
3.Rotate the stand down until it clicks into place (2).
Attaching and removing a stand21
Removing an adjustable height stand
To remove the stand:
1.Remove all removable media, such as optical discs or USB ash drives, from the computer.
2.Turn o the computer properly through the operating system, then turn o any external devices.
3.Disconnect the AC power cord from the AC outlet and disconnect any external devices.
4.Place the computer face down on a soft at surface. HP recommends that you set down a blanket, towel,
or other soft cloth to protect the bezel and screen surface from scratches or other damage.
5.Remove the rear port cover, if it is installed. For instructions, see Rear port cover on page 23.
6.Press the release latch under the stand (1).
7.Lift the stand up (2), and then pull the stand hooks out of the computer (3).
22Chapter 4 Removal and Replacement Procedures
Rear port cover
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the stand (see Attaching and removing a stand on page 20).
3.If the security lock screw is secured, unscrew it with a T15 tamper-resistant Torx security screwdriver.
4.Slide the rear port cover retainer tabs toward each other (1) to release the port cover.
5.Pull the port cover (2) toward the bottom and o the computer.
Rear port cover23
Access panel
The computer has one main rear access panel that allows access to internal components. Two screws secure
the access panel.
To remove the access panel:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Pull up at the two recessed areas on at bottom of the access panel, and then lift the access panel o the
computer.
5.Lift the access panel o the computer.
To replace the access panel, reverse the removal procedures.
24Chapter 4 Removal and Replacement Procedures
VESA mount cover
Models that do not use a stand have a cover over the VESA mount.
To remove the VESA mount cover:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Pull up to remove the cover o the computer.
To replace the VESA mount cover, reverse the removal procedures.
VESA mount cover25
Locating internal components
ComponentComponent
1Optical disc drive3Battery
2Hard drive4Memory modules
26Chapter 4 Removal and Replacement Procedures
Drives
Description
Optical drive (does not include bezel)
DVD±RW drive
DVD-ROM drive
Hard drive
1 TB, hybrid SSD drive
1 TB, 7200 rpm
500 GB, 5400 rpm, hybrid SSD drive
500 GB, 7200 rpm hard drive, self-encrypting (SED)
The 2.5 inch primary hard drive is installed on the left side of the computer on top of the optical disc drive
(ODD). To locate the hard drive on the system board, see Locating internal components on page 26.
Removing a 2.5-inch hard disc drive
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Pull the hard drive latch away from the hard drive (1) to release the drive.
6.Slide the hard drive toward the edge of the computer and lift the hard drive out of the drive cage (2).
Drives27
7.Disconnect the power and data cables from the hard drive (3).
8.Remove the four mounting screws from the 2.5 inch hard drive. Be sure to keep the screws together with
the blue rubber grommets to use to install a replacement drive.
For instructions on installing a hard disc drive, see Installing a 2.5-inch hard disc drive on page 29.
28Chapter 4 Removal and Replacement Procedures
Installing a 2.5-inch hard disc drive
1.Fasten four mounting screws with grommets onto the new 2.5 inch hard drive.
2.Position the hard drive above the drive cage with the connectors facing the power and data cables.
3.Connect the power and data cables to the hard drive (1).
4.Place the hard drive into the drive cage and slide it rmly away from the edge of the computer (2) until
the hard drive snaps into place.
Be sure that the hard drive latch has moved back into place to cover the grommet on the side of the hard
drive.
Drives29
Replacing the optical drive
The optical drive is located beneath the lower hard drive on the left side of the computer. The green latch
comes with the drive.
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the hard drive (see Removing a 2.5-inch hard disc drive on page 27).
6.Push and hold the green tab (1) while pushing in the green latch (2) at the back of the optical disc drive
enclosure and slide the drive out of the chassis (3).
7.Pull the green latch o the optical disc drive.
Keep this latch to install on the new optical disc drive.
8.Align the three pins on the latch with the holes in the new optical disc drive and press the latch rmly
onto the new drive.
NOTE: You must reuse the latch removed from the old optical disc drive.
30Chapter 4 Removal and Replacement Procedures
9.Align the new optical disc drive with the opening in the side of the computer. Push the drive in rmly
until it snaps into place.
NOTE: The optical disc drive can be installed in only one way.
Drives31
System board (EMI) shield
The system board shield covers the system board. A latch holds the shield in place. Four screws secure the
shield.
To remove the system board shield:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the four Torx screws, and then lift the electromagnetic interference (EMI) shield o the system
board.
To install the system board shield, reverse the removal procedures.
32Chapter 4 Removal and Replacement Procedures
Memory
Description
16-GB
8-GB
4-GB
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 qualications:
PinsIndustry-standard 260 pins containing the mandatory Joint Electronic Device
SupportSupport CAS latency 15 DDR4 2400 MHz (15-15-15 timing)
Engineering Council (JEDEC) specication
Slots2
Maximum Memory16 GB per memory slot, 32 GB total
Supported1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies single-sided and double-sided
SODIMMs
NoteThe system will not operate properly if you install unsupported SODIMM
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.
LocationSystem board labelChannel
Lower SocketSODIMM1Channel B
Upper SocketSODIMM3Channel 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.
Memory33
●
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.
To remove a memory module:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.To remove a memory module, press outward on the two latches on each side of the SODIMM (1), then
pull the SODIMM out of the socket (2).
7.To install a memory module, slide the SODIMM into the socket at approximately a 30° angle (1), then
press the SODIMM down (2) so that the latches lock it in place.
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
The computer automatically recognizes the additional memory when you turn on the computer.
34Chapter 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 briey 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 on page 26.
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the
positive side up (1) . Push the other edge down until the clamp snaps over the other edge of the battery
(2).
Battery35
WLAN module
Description
Intel Dual Band Wireless-AC 7265 NV
Intel Centrino Wireless-N 2230
Intel Dual Band Wireless-AC 3168
802.11bgn, 1x1, single band, Bluetooth 4.1 combo 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.
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 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Disconnect the antenna cables from the module (1).
7.Remove the Phillips screw (2) that secures the module to the computer.
8.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.
36Chapter 4 Removal and Replacement Procedures
Heat sink
Heat sink appearance varies based on processor type and graphics memory.
To remove the heat sink:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the non-captive Torx screw from the top end of the heat sink (1)
7.In the order indicated on the heat sink, loosen the silver captive Torx screws (2).
8.Lift the heat sink out of the computer (3).
CAUTION: Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even the
downward forces on the processor. This is especially important as the pins on the socket are very fragile
and any damage to them may require replacing the system board.
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.
To replace the heat sink, reverse the removal procedures.
Heat sink37
Processor
Description
Intel Core i7-7700T (2.9-GHz)
Intel Core i5-7600T (2.8-GHz)
Intel Core i3-7500T (2.7-GHz)
Intel Core i3-7300T (3.5-GHz)
Intel Core i3-7100T (3.4-GHz)
Intel Core i7-6700T (2.8-GHz)
Intel Core i5-6600T (2.7-GHz)
Intel Core i5-6500T (2.5-GHz)
Intel Core i3-6100T (3.2-GHz)
Intel Pentium G4600T (3.0-GHz)
Intel Pentium G4560T (2.9-GHz)
Intel Pentium G4400T (2.9-GHz)
Intel Celeron G3930T (2.7-GHz)
Intel Celeron G3900T (2.6-GHz)
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the heat sink (see Heat sink on page 37).
7.Rotate the locking lever to its full open position (1).
38Chapter 4 Removal and Replacement Procedures
8.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.
Processor39
Serial/PS2 board
The serial/PS2 board is located to the left of the rear I/O panel. It is secured with two screws and has one
connected cable.
To remove the serial/PS2 board:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Disconnect the cable (1) from the board.
6.Remove the two Torx screws (2) that secure the board, and then rotate the board up and remove it from
the computer (3).
7.Remove the serial/PS2 board from the computer.
To install the serial/PS2 board, reverse the removal procedures.
40Chapter 4 Removal and Replacement Procedures
System board
The system board is secured with a a total of ten Torx screws. Two of the screws also secure the removable
side bracket, and two other screws secure the I/O bracket.
To remove the system board:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the memory modules (see Memory on page 33).
7.Remove the WLAN module (see WLAN module on page 36).
8.Remove the heat sink (see Heat sink on page 37).
9.Remove the processor (see Processor on page 38).
10. Disconnect all cables from the system board, noting their location for reinstallation.
11. Remove the eight Torx screws (1) that secure the system board to the computer.
System board41
12. Lift the system board up and out of the computer (2).
To install the system board, reverse the removal procedures.
Replace the thermal pad below the system board.
Updating SMBIOS Information
When replacing the system board, you must reprogram the SMBIOS information on the aected 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
Product NameEnter the Model name/number or marketing name.Flexbuild
CommentLabel
42Chapter 4 Removal and Replacement Procedures
Setup Field NameCommentLabel
Serial NumberEnter the Serial Number of Unit.Support
SKU NumberEnter the SKU or Product Number including Localization Code.Support
Asset TagEnter the 18-byte identier assigned to the computer.Support
Feature ByteEnter 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.
CHFANBlackFan connectorPSWDGreenClear system passwords
BACKLIGHTBlackDisplay backlightPWRWhiteMain power
WLANBlackWLAN moduleSATA2Light blueHard drive
PROCESSORBlackProcessor socketSATA1Dark blueSecond hard drive
XMM3BlackMemory moduleSATAPWR0WhiteHard drive power
BATTERYBlackRTC batteryEXTBlackPS2/serial board
XMM1BlackMemory moduleLVDSBlackDisplay
SPKRBlackSpeakerTOUCHWhiteTouch display
CMOSYellowReset CMOS2DWCAMWhiteCamera
SSDBlackM.2 SSD drive
44Chapter 4 Removal and Replacement Procedures
VESA mounting bracket
The VESA mounting bracket is located under the stand.
To remove the VESA mounting bracket:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the cables that are routing along the top and left side of the mounting bracket.
7.Remove the ve Torx screws, and then remove the bracket from the computer.
To replace the VESA mounting bracket, reverse the removal procedures.
VESA mounting bracket45
Fan assembly
The fan assembly is located partially under the VESA mounting bracket and is secured with four Torx screws.
To remove the fan assembly:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the VESA mounting bracket (see VESA mounting bracket on page 45).
7.Disconnect the fan cable from the system board (1).
8.Remove the three Torx screws that secure the fan to the computer (2).
9.Remove the fan from the computer (3).
To install the fan assembly, reverse the removal procedures.
46Chapter 4 Removal and Replacement Procedures
Drive cable
The drive cable includes connectors for the optical drive and hard drive, as well as three cables that connect to
the system board..
To remove the drive cable:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the VESA bracket (see VESA mounting bracket on page 45).
7.Remove the two screws (1) that secure the optical drive connector to the computer.
8.Disconnect the cables from the system board connectors (2).
9.Remove the cables from the clips built into the computer (3).
Drive cable47
Top trim
The top trim is located along the top of the computer.
To remove the top trim:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the ve Torx screws that secure the trim to the computer.
6.Rotate the bottom of the trim up and o the computer.
To install the top trim, reverse the removal procedures.
48Chapter 4 Removal and Replacement Procedures
Webcam module
On products that ship with a webcam module, the module is located at the top of the computer beneath the
top trim. It is housed in a metal bracket that is secured with two Phillips screws. The webcam module has one
connector.
To remove the webcam module:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the top trim (see Top trim on page 48).
6.Remove the two Torx screws (1) that secure the webcam module bracket to the computer.
7.Disconnect the cable from the webcam module (2).
8.Remove the webcam from the computer.
To install a webcam module, reverse the removal procedures.
Webcam module49
Antennas
The antenna cables route from the WLAN module to antennas at the top of the computer. The antennas are
secured to the computer with adhesive.
To remove the antennas:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the top trim (see Top trim on page 48).
7.Disconnect the antennas from the WLAN module (2).
8.Peel the transceivers o the frame (2).
9.Remove the cables from the clips along the routing path (3).
To install the antenna, reverse the removal procedures.
NOTE: When connecting the antennas cables, be sure to match the numbers on the cable with the same
number printed on the WLAN module.
50Chapter 4 Removal and Replacement Procedures
Right trim
To remove the right trim:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the top trim (see Top trim on page 48).
7.Remove the two Torx screws (1) that secure the right trim to the computer, and then rotate the trim
away from the computer to remove (2).
To install the right trim, reverse the removal procedures.
Right trim51
Left trim
To remove the left trim:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the top trim (see Top trim on page 48).
6.Remove the optical drive (see Replacing the optical drive on page 30).
7.Remove the four Torx screws that secure the left trim to the computer (1).
8.Rotate the trim o the computer (2).
To install the left trim, reverse the removal procedures.
52Chapter 4 Removal and Replacement Procedures
Feet, bottom panel and trim
To remove the feet and bottom panel and trim:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the serial/PS2 board (see Serial/PS2 board on page 40).
6.Remove the top trim (see Top trim on page 48).
7.Remove the left trim (see Left trim on page 52).
8.Remove the right trim (see Right trim on page 51).
9.Remove the two Torx screws that secures each foot to the computer.
NOTE: The left foot is shown in the following image.
Feet, bottom panel and trim53
10. Remove the feet.
NOTE: The left foot is shown in the following image.
11. Remove the two Torx screws (1) that secure the bottom panel and trim, and then lift it o the computer
(2).
NOTE: Note that in the following image the computer is shown upside down.
To replace the feet and bottom panel and trim, reverse the removal procedures.
54Chapter 4 Removal and Replacement Procedures
Speakers
The speakers are located at the bottom of the computer. Two separate speakers are each secured by two Torx
screws.
To remove the speakers:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the system board shield (see System board (EMI) shield on page 32).
6.Remove the bottom panel and trim (see Feet, bottom panel and trim on page 53).
7.Disconnect the speaker cable from the system board (1).
8.Remove two Torx screws (2) that secure each speaker to the computer.
9.Remove speaker cable from the clips and routing path built into the chassis (3), and then remove the
speakers from the computer.
10. Remove the speakers from the computer.
To install the speakers, reverse the removal procedures.
Speakers55
Display panel
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 remove the display panel:
1.Prepare the computer for disassembly (see Preparing to disassemble the computer on page 19).
2.Remove the rear port cover (see Rear port cover on page 23).
3.Remove the stand (see Attaching and removing a stand on page 20).
4.Remove the access panel (see Access panel on page 24).
5.Remove the optical drive (see Replacing the optical drive on page 30).
6.Remove the system board shield (see System board (EMI) shield on page 32).
7.Remove the top trim (see Top trim on page 48).
8.Remove the right trim (see Right trim on page 51).
9.Remove the bottom panel and trim (see Feet, bottom panel and trim on page 53).
10. Non-touch models: To separate the bezel from the main frame, remove the two Torx screws that secure
the bezel to the frame.
56Chapter 4 Removal and Replacement Procedures
11. Disengage the 20 tabs along the sides that secure the bezel to the frame. Tabs are as follows:
5 tabs along the left side
6 tabs along the top
3 tabs on the right side
6 tabs near the bottom
IMPORTANT: Be sure to disengage the tabs before separating the bezel from the frame. Failure to
disengage the tabs could result in damage to the display panel.
12. Separate the main frame from the bezel.
13. To separate the display panel from the main frame:
a.Non-touch models: Remove the four Torx screws that secure the frame to the display panel.
Display panel57
b.Touch models: Remove the six Torx screws that secure the frame to the display panel.
c.Disconnect the backlight cable from the rear of the display panel (1).
d.Disconnect the display (LVDS) cable and touch cable (only on models with touch screens) from the
system board, and push the cable(s) into the hole that routes through the main frame (2).
e.Separate the panel from the frame by lifting the frame up o the panel.
58Chapter 4 Removal and Replacement Procedures
14. If it is necessary to remove the display cable, disconnect the display cable from the connector on the
display panel by pressing on the latches on each side of the connector (1), and then pulling the cables
from the connector (2).
Touch models
Non-touch models
Display panel59
15. Non-touch models: If it is necessary to remove the brackets from the panel, remove the two Torx
screws from each bracket (1), and then rotate the brackets o the panel (2).
To install the display panel, reverse the removal procedures.
60Chapter 4 Removal and Replacement Procedures
5Computer 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 conguration, including settings for processor, graphics, memory, audio, storage,
communications, and input devices.
●
Modify the boot order of bootable devices such as hard drives, optical drives, or USB ash media devices.
●
(Windows 7 only) Establish an Ownership Tag, the text of which is displayed each time the system is
turned on or restarted.
●
Enter the Asset Tag or property identication 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 dierent types of boot sources.
●
Congure 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 conguration 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 display light turns green to access the utility.
You can also press Esc to a menu that allows you to access dierent 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 display light turns green 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) Utilities61
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 modied 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
62Chapter 5 Computer Setup (F10) Utility
Computer Setup–Main
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-1 Computer Setup—Main
OptionDescription
System InformationLists 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
●
Super I/O Firmware version
●
Born On Date
●
Serial Number
●
SKU number
●
UUID (Universally Unique Identier)
●
Asset Tracking Number
●
Feature Byte
●
Build ID
●
Product Family
●
System Board ID
●
System Board CT
●
Integrated MAC Address
System DiagnosticsIf 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
●
Language
Update System BIOSLets 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 HP.com for BIOS Updates’ or ‘Check the Network for BIOS Updates’
Computer Setup (F10) Utilities63
Table 5-1 Computer Setup—Main (continued)
OptionDescription
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 Update Preferences
Allows the administrator to select the source of network updates (www.hp.com or another network
server) and allows conguration of a periodic check for updates, including policies for:
■
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
●
Network Conguration 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 timeLets you update system date and time.
System IDsLets you set the following values:
●
Asset Tracking Number
●
Ownership Tag
Replicated SetupBackup current settings to USB device
Saves system conguration to a formatted USB ash media device.
Restore current settings from USB device
Restores system conguration from a USB ash media device.
Save Custom DefaultsSaves the current system conguration settings as the custom default set.
Apply Custom Defaults
and Exit
Apply Factory Defaults
and Exit
Ignore Changes and ExitExits Computer Setup without applying or saving any changes.
Save Changes and ExitSaves changes to current system conguration, exits Computer Setup, and reboots.
Suppress POST errorsSelect 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 conguration settings to the computer after rebooting. Does not apply to
options in the Security menu.
64Chapter 5 Computer Setup (F10) Utility
Computer Setup—Security
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-2 Computer Setup—Security
OptionDescription
Set up BIOS
Administrator 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
administrator password is
set.)
Lets you set and enable a BIOS administrator password, which controls access to the following features:
●
Setup Menu (F10)
●
3rd Party Option ROM Management (F3)
●
Update system ROM
●
WMI commands that change system settings
●
BIOS Conguration Utility (BCU)
●
Alternative power-on password
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.
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.
Password PoliciesLet 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 CongurationTPM Embedded Security
●
TPM Specication Version
Displays the current TPM version.
●
TPM Device
Computer Setup (F10) Utilities65
Table 5-2 Computer Setup—Security (continued)
OptionDescription
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
UtilitiesHard 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.
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 modied
the MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved
MBR if you are condent 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
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.
66Chapter 5 Computer Setup (F10) Utility
Table 5-2 Computer Setup—Security (continued)
OptionDescription
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 SID Authentication
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.
Computer Setup—Advanced
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Display LanguageLets you select the language of the menus in F10 Setup and the keyboard layout.
Scheduled Power-OnThis feature wakes the system up from a powered o state at a specied date and time.
Boot OptionsSelect the devices that the computer can boot from, as well as other options, including:
●
●
●
●
●
●
●
●
Startup Delay(sec). Enabling this feature will add a user-specied 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 for Windows 8.1 or later, and disabled for Windows 7 systems.
CD-ROM Boot. Default is enabled.
USB Storage Boot. Default is enabled.
Network (PXE) Boot. Default is enabled.
Prompt on Memory Size Change. Default is enabled.
Prompt on Fixed Storage Change. Default is disabled.
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 congured 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).
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 specied 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 display light turns green. 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.
Secure Boot
Conguration
Congure 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 modication from preboot to full OS booting, preventing rmware attacks. UEFI and Windows
Secure Boot only allow code signed by pre-approved digital certicates 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’.
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 congured and Secure Boot to be enabled.
System OptionsCongure storage controller for Intel Optane
Enables the Intel Optane memory module.
Turbo boost
Intel Turbo Boost Technology (TBT) automatically allows processor cores to run faster than the base
operating frequency if it is operating below power, current, and temperature specication limits. Default
is enabled.
Multi-processor
Use this option to disable multi-processor support under the operating system. Default is enabled.
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 WLAN/BT
Lets you disable the wireless module slot. Default is enabled.
M.2 SSD
Lets you disable the M.2 solid-state drive 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’.
Built-In Device OptionsEmbedded 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 congure where the computer boots, including the
network or hard drive. Default is Boot to Network.
Use this option to manage graphics memory allocation. The value you choose is allocated permanently to
graphics and is unavailable to the operating system.
Audio Device
Select to show the device in the operating system. Default is enabled.
Internal Speakers (does not aect 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 aect the error or warning beeps during POST. Default is enabled.
Integrated Microphone
Clear to disable the integrated microphone. This does not aect devices plugged into audio jacks. Default
is enabled.
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.
Port OptionsSerial Port A
Lets you disable the port. Default is enabled.
I/O Address A
Lets you specify the address. Default is enabled.
Interrupt A
Lets you specify the address. Default is enabled.
Lets you disable the following ports (default is enabled):
●
SATA connectors
●
Rear USB ports
●
Left USB ports
●
USB Legacy Port Charging
Enables USB charging port capability when the system is in hibernate or shutdown state.
●
Media card reader
Enables the card reader.
Restrict USB Devices
Specify the following categories of USB devices to enable:
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 dierent 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 legacy’ for
Windows 7 and other non-Windows congurations. Default is ‘All UEFI’ for Windows 8.1 or later.
Congure 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 for Windows 8 or later.
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.
S5 (Soft O) = LED is o.
Electronic labelsDisplays system labels.
Computer Setup (F10) Utilities71
Recovering the Conguration 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 63 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 modied computer conguration settings to a USB ash media
device and save the device for possible future use.
To restore the conguration, insert the USB ash media device with the saved conguration and perform the
Restore from Removable Media command with the Computer Setup (F10) Utility. (See Computer Setup–Main
on page 63 in the Computer Setup—File table.)
72Chapter 5 Computer Setup (F10) Utility
6Using HP PC Hardware Diagnostics (UEFI)
HP PC Hardware Diagnostics is a Unied Extensible Firmware Interface (UEFI) that 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.
When HP PC Hardware Diagnostics (UEFI) detects a failure that requires hardware replacement, a 24-digit
Failure ID code is generated. This ID code can then be provided to support to help determine how to correct
the problem.
NOTE: To start diagnostics on a convertible computer, your computer must be in notebook mode and you
must use the keyboard attached.
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 drive
NOTE: To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see Downloading
HP PC Hardware Diagnostics (UEFI) to a USB device on page 74.
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.
NOTE: If you need to stop a diagnostic test, press esc.
73
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device
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 oered.
There are two options to download HP PC Hardware Diagnostics to a USB device.
Download the latest UEFI version
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 the Download link, and then select Run.
Download any version of UEFI for a specic product
1.Go to http://www.hp.com/support.
2.Select Get software and drivers.
3.Enter the product name or number.
4.Select your computer, and then select your operating system.
5.In the Diagnostic section, follow the on-screen instructions to select and download the UEFI version
you want.
74Chapter 6 Using HP PC Hardware Diagnostics (UEFI)
7Troubleshooting 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 specic 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 100.
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 61 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 100 for more information.
●
If you are working on a network, plug another computer with a dierent 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 Conguration.”
●
Refer to the comprehensive online technical support at http://www.hp.com/support.
●
Refer to Helpful hints on page 76 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 notication, 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:
Safety and comfort75
●
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 100 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.
76Chapter 7 Troubleshooting without diagnostics
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.
CauseSolution
The Computer Setup (F10) Utility is set to “fast boot” causing the
F10 access screen to display too briey when booting the
computer.
Computer appears locked up and will not turn o when the power button is pressed.
CauseSolution
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.
CauseSolution
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.
Computer date and time display is incorrect.
CauseSolution
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.
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.
To access Control Panel in Windows 7, select Start, and then
select Control Panel.
Solving general problems77
Computer date and time display is incorrect.
CauseSolution
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.
CauseSolution
System volume may be set low or muted.1.Check the Computer Setup settings to make sure the
internal system speaker is not muted (this setting does not
aect the external speakers).
2.Make sure the external speakers are properly connected and
powered on and that the speakers' volume control is set
correctly.
3.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.
CauseSolution
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.
CauseSolution
Processor is too hot.1.Make sure airow 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 airow.
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.
Virus resident on the hard drive.Run virus protection program.
Too many applications running.1.Close unnecessary applications to free up memory.
78Chapter 7 Troubleshooting without diagnostics
Restart the computer.
Poor performance.
CauseSolution
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 7:
a.Go to Start > All Programs > Accessories > Run
b.Type msconfig, and then press Enter.
c.On the Startup tab of the System Conguration Utility,
In Windows 10:
a.Type msconfig in the taskbar search box, and then
b.On the Startup tab of the System Conguration Utility,
c.Select applications that you do not want to launch
clear applications that you do not want to launch
automatically, and the click OK.
select mscong.
click Open Task Manager.
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.
CauseSolution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
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.
CauseSolution
System unable to power on.Press and hold the power button for less than 4 seconds. If the
hard drive LED turns white, then:
Solving general problems79
System does not power on and the LEDs on the front of the computer are not ashing.
CauseSolution
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.
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.
OR
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.
80Chapter 7 Troubleshooting without diagnostics
Solving power problems
Common causes and solutions for power problems are listed in the following table.
Power supply shuts down intermittently.
CauseSolution
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.
CauseSolution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
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.
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.
CauseSolution
Power failure (power supply is overloaded).1.If equipped with a voltage selector, check that the voltage
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.
Solving power problems81
Solving hard drive problems
Hard drive error occurs.
CauseSolution
Hard disk has bad sectors or has failed.1.In Windows 7, click Start, click Computer, and right-click on
Disk transaction problem.
CauseSolution
a drive. Select Properties, and then select the Tools tab.
Under Error-checking click Check Now.
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.
Either the directory structure is bad or there is a problem with a
le.
Drive not found (identied).
CauseSolution
Cable could be loose.Check cable connections.
The system may not have automatically recognized a newly
installed device.
The device is attached to a SATA port that has been hidden in
Computer Setup.
In Windows 7, click Start, expand Computer, and right-click on a
drive. Select Properties, and then select the Tools tab. Under Error-checking click Check Now.
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.
See reconguration directions in the Solving hardware installation
problems on page 87 section. If the system still does not
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.
Run the Computer Setup utility and ensure Device Available is
selected for the device's SATA port in Advanced > Port Options.
Drive responds slowly immediately after power-up.Run Computer Setup and increase the POST Delay in Advanced >
82Chapter 7 Troubleshooting without diagnostics
Boot Options.
Nonsystem disk/NTLDR missing message.
CauseSolution
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
conguration.
Bootable hard drive is not listed rst in the Boot Order.Run the Computer Setup utility and select Advanced > Boot
Computer will not boot from hard drive.
CauseSolution
The device is attached to a SATA port that has been hidden in
Computer Setup.
▲ 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.
Options and ensure the bootable hard drive is listed immediately
under the Hard Drive entry.
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.
Boot order is not correct.Run the Computer Setup utility and change boot sequence in
Advanced > Boot Options.
Hard drive is damaged.Observe if the front panel Power LED is blinking RED and if any
beeps are heard. See POST error messages and diagnostic front
panel LEDs and audible codes on page 100 to determine possible
causes for the blinking red and beep codes.
See the Worldwide Limited Warranty for terms and conditions.
Computer seems to be locked up.
CauseSolution
Program in use has stopped responding to commands.1.Use the task manager to close programs that do not
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.
Solving hard drive problems83
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.
CauseSolution
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.
CauseSolution
Software volume control is turned down or muted.Double-click the Speaker icon on the taskbar, then make sure
Audio is hidden in Computer Setup.Enable the audio in Computer Setup: Advanced > Built-in Device
The external speakers are not turned on.Turn on the external speakers by either manually pressing a
that Mute is not selected and use the volume slider to adjust the
volume.
Options.
power switch on the speakers, or form the speaker icon in the
system tray.
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 dierent audio
device as the default output device than what is expected.
Computer appears to be locked up while recording audio.
CauseSolution
The hard disk may be full.Before recording, make sure there is enough free space on the
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.
hard disk. You can also try recording the audio le in a
compressed format.
Line-in jack is not functioning properly.
CauseSolution
Jack has been recongured in the audio driver or application
software.
84Chapter 7 Troubleshooting without diagnostics
In the audio driver or application software, recongure the jack or
set the jack to its default value.
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.
CauseSolution
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.
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.
If you are on a network, you may not have made the connection
to the printer.
Printer may have failed.Run printer self-test.
Printer will not turn on.
CauseSolution
The cables may not be connected properly.Reconnect all cables and check the power cord and electrical
Printer prints garbled information.
CauseSolution
The correct printer driver for the application is not installed.Install the correct printer driver for the application.
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
Make the proper network connections to the printer.
outlet.
on.
Printer will not print.
CauseSolution
The printer may be out of paper.Check the paper tray and rell it if it is empty.
Solving printer problems85
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.
CauseSolution
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.
CauseSolution
Mouse connector is not properly plugged into the back of the
computer.
Program in use has stopped responding to commands.Shut down the computer using the keyboard then restart the
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.
Shut down the computer using the keyboard.
Windows 7:
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 select Shut Down and then press
Enter.
3.After the shutdown is complete, plug the mouse connector
into the back of the computer (or the keyboard) and restart.
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.
computer.
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.
86Chapter 7 Troubleshooting without diagnostics
Solving hardware installation problems
You may need to recongure 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
congures the computer. If you install a non-plug and play device, you must recongure 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
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.
A new device is not recognized as part of the system.
CauseSolution
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
When the system advised you of changes to the conguration,
you did not accept them.
A plug and play board may not automatically congure when
added if the default congurationconicts with other devices.
USB ports on the computer are disabled in Computer Setup.Run the Computer Setup utility and ensure that Device available
Computer will not start.
CauseSolution
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.
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 conguration that does not
cause a resource conict. You can also use Computer Setup to
recongure or disable devices to resolve the resource conict.
To access Device Manager in Windows 7, click Start, select Control Panel, and then select 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.
is selected for appropriate USB ports under Advanced > Port
Options.
Wrong memory modules were used in the upgrade or memory
modules were installed in the wrong location.
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 specic
problems.
3.If you still cannot resolve the issue, contact Customer
Support.
Solving hardware installation problems87
Power LED ashes Red three times and then white two times.
CauseSolution
Memory is installed incorrectly or is bad.CAUTION: To avoid damage to the DIMMs or 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.
CauseSolution
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.
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 7, click Start, select
Control Panel, and then select 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.
Incorrect network driver.Check the network controller documentation for the correct driver
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.
CauseSolution
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 7, click Start, select Control Panel, and then select 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 controller is disabled.1.Run Computer Setup and enable network controller.
88Chapter 7 Troubleshooting without diagnostics
Network status link light never ashes.
NOTE: The network status light is supposed to ash when there is network activity.
CauseSolution
2.Enable the network controller in the operating system using
Device Manager.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select 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.
CauseSolution
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.
CauseSolution
Network drivers are not loaded, or driver parameters do not
match current conguration.
The network controller is not congured 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 conguration of the network controller.
Make sure the correct network client and protocol is installed.
and congure the network controller.
To access Control Panel in Windows 7, click Start, and then select Control Panel.
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 problems89
Network controller stopped working when an expansion board was added to the computer.
CauseSolution
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.
CauseSolution
The les containing the network drivers are corrupted.Reinstall the network drivers using the Recovery Disc Set in
Windows 7.
If necessary, download the softpaq from the web (from a dierent
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.
CauseSolution
The network controller is not congured properly.Verify Network Connectivity, that a DHCP Server is present, and
System setup utility reports unprogrammed EEPROM.
CauseSolution
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 aected by congurations 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.
90Chapter 7 Troubleshooting without diagnostics
System will not boot or does not function properly after installing additional memory modules.
CauseSolution
A memory module is not installed in the DIMM1 or XMM1 socket.Ensure that a memory module is installed in the DIMM1 or XMM1
socket on the system board. This socket must be populated with a
memory module.
Memory module is not the correct type or speed grade for the
system or the new memory module is not seated properly.
Out of memory error.
CauseSolution
You have run out of memory to run the application.Check the application documentation to determine the memory
Memory count during POST is wrong.
CauseSolution
The memory modules may not be installed correctly.Check that the memory modules have been installed correctly and
Integrated graphics may use system memory.No action required.
Insucient memory error during operation.
Replace module with the correct industry-standard device for the
computer. On some models, ECC and non-ECC memory modules
cannot be mixed.
requirements.
that proper modules are used.
CauseSolution
Too many Terminate and Stay Resident programs (TSRs) are
installed.
You have run out of memory for the application.Check the memory requirements for the application or add more
Power LED ashes Red ve times, once every second, followed by a two second pause, and the computer beeps ve times. (Beeps
stop after fth iteration but LEDs continue ashing.)
CauseSolution
Memory is installed incorrectly or is bad.1.Reseat DIMMs. Power on the system.
Delete any TSRs that you do not need.
memory to the computer.
2.Replace DIMMs one at a time to isolate the faulty module.
3.Replace third-party memory with HP memory.
4.Replace the system board.
Solving memory problems91
Solving USB ash drive problems
If you encounter USB ash drive problems, common causes and solutions are listed in the following table.
USB ash drive is not seen as a drive letter in Windows.
CauseSolution
The drive letter after the last physical drive is not available.Change the default drive letter for the ash drive in Windows.
USB ash drive not found (identied).
CauseSolution
The device is attached to a USB port that has been hidden in
Computer Setup.
The device was not properly seated before power-up.Ensure the device is fully inserted into the USB port before
System will not boot from USB ash drive.
CauseSolution
Boot order is not correct.Run the Computer Setup utility and change boot sequence in
Removable Media Boot is disabled in the Computer Setup utility.Run the Computer Setup utility and enable booting to removable
The computer boots to DOS after making a bootable ash drive.
CauseSolution
Flash drive is bootable.Install the ash drive only after the operating system boots.
Flash drive is defective.Try a dierentash drive.
Run the Computer Setup utility and enable USB ports in Advanced
> Port Options.
applying power to the system
Advanced > Boot Options.
media in Advanced > Boot Options. Ensure USB is enabled in
Storage > Boot Order.
92Chapter 7 Troubleshooting without diagnostics
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