Table of Contents
- Product features
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures: Small Form Factor
- Computer Setup (F10) Utility
- Troubleshooting without diagnostics
- Safety and comfort
- Before you call for technical support
- Helpful hints
- Solving general problems
- Solving power problems
- Solving hard drive problems
- Solving media card reader problems
- Solving display problems
- Solving audio problems
- Solving printer problems
- Solving keyboard and mouse problems
- Solving Hardware Installation Problems
- Solving Network Problems
- Solving memory problems
- Solving CD-ROM and DVD problems
- Solving USB flash drive problems
- Solving front panel component problems
- Solving Internet access problems
- Solving software problems
- POST error messages and diagnostic front panel LEDs and audible codes
- Password security and resetting CMOS
- Using HP PC Hardware Diagnostics (UEFI)
- System backup and recovery
- Battery replacement
- Statement of Volatility
- Power cord set requirements
- Specifications
- Index
HP 400 G3 User Manual
Displayed below is the user manual for 400 G3 by HP which is a product in the PCs/Workstations category. This manual has pages.
Related Manuals
Maintenance and Service Guide
HP ProDesk 400 G3 Small Form Factor
© Copyright 2016 HP Development Company,
L.P. The information contained herein is subject
to change without notice.
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 is a trademark of Intel Corporation in the
U.S. and other countries. Windows is either a
registered trademark or trademark of
Microsoft Corporation in the United States
and/or other countries. NVIDIA and Quadro are
trademarks and/or registered trademarks of
NVIDIA Corporation in the U.S. and other
countries.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed
as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or
omissions contained herein.
This document contains proprietary
information that is protected by copyright. No
part of this document may be photocopied,
reproduced, or translated to another language
without the prior written consent of Hewlett-
Packard Company.
First Edition (January 2016)
Document Part Number: 838740-001
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.
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.
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
Standard conguration features ........................................................................................................................... 1
Serial number location .......................................................................................................................................... 1
Front panel components ........................................................................................................................................ 2
Rear panel components ......................................................................................................................................... 3
2 Illustrated parts catalog ................................................................................................................................ 4
Computer major components ................................................................................................................................ 4
Cables and adapters .............................................................................................................................................. 5
Misc parts ............................................................................................................................................................... 6
Drives ..................................................................................................................................................................... 8
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................... 9
Electrostatic discharge information ...................................................................................................................... 9
Generating static ............................................................................................................................... 10
Preventing electrostatic damage to equipment ............................................................................... 10
Personal grounding methods and equipment .................................................................................. 10
Grounding the work area ................................................................................................................... 11
Recommended materials and equipment ........................................................................................ 11
Operating guidelines ........................................................................................................................................... 12
Routine care ......................................................................................................................................................... 12
General cleaning safety precautions ................................................................................................ 12
Cleaning the Computer Case ............................................................................................................. 12
Cleaning the keyboard ....................................................................................................................... 13
Cleaning the monitor ......................................................................................................................... 13
Cleaning the mouse ........................................................................................................................... 13
Service considerations ......................................................................................................................................... 14
Power supply fan ............................................................................................................................... 14
Tools and software Requirements .................................................................................................... 14
Screws ............................................................................................................................................... 14
Cables and connectors ...................................................................................................................... 14
Hard Drives ........................................................................................................................................ 14
Lithium coin cell battery .................................................................................................................... 15
SATA hard drives .................................................................................................................................................. 15
SATA hard drive cables ......................................................................................................................................... 16
SATA data cable ................................................................................................................................. 16
v
SMART ATA drives ................................................................................................................................................ 16
Cable management .............................................................................................................................................. 16
4 Removal and replacement procedures: Small Form Factor .............................................................................. 17
Preparation for disassembly ............................................................................................................................... 17
Access panel ......................................................................................................................................................... 18
Front bezel ........................................................................................................................................................... 18
Slim optical drive bezel blank .............................................................................................................................. 19
Expansion card ..................................................................................................................................................... 20
Drive cage ............................................................................................................................................................ 24
Memory ................................................................................................................................................................ 26
DIMMs ................................................................................................................................................ 26
DDR4-SDRAM DIMMs ......................................................................................................................... 26
Populating DIMM sockets .................................................................................................................. 26
Removing and installing DIMMs ........................................................................................................ 27
System board connections .................................................................................................................................. 29
Drives ................................................................................................................................................................... 30
Drive positions ................................................................................................................................... 31
Removing a 9.5mm slim optical drive ............................................................................................... 31
Installing a 9.5mm slim optical drive ................................................................................................ 32
Removing and replacing a hard drive ............................................................................................... 33
Fan ........................................................................................................................................................................ 37
Fan sink ................................................................................................................................................................ 38
Processor ............................................................................................................................................................. 39
Power supply ....................................................................................................................................................... 40
Front I/O assembly ............................................................................................................................................... 42
Power switch assembly ....................................................................................................................................... 43
Speaker ................................................................................................................................................................ 44
System board ....................................................................................................................................................... 44
System board callouts ....................................................................................................................... 46
Changing from desktop to tower conguration .................................................................................................. 47
5 Computer Setup (F10) Utility ........................................................................................................................ 48
Computer Setup (F10) Utilities ............................................................................................................................ 48
Using Computer Setup (F10) Utilities ................................................................................................ 48
Computer Setup–Main ....................................................................................................................... 50
Computer Setup—Security ............................................................................................................... 52
Computer Setup—Advanced ............................................................................................................. 54
Recovering the Conguration Settings ............................................................................................................... 59
vi
6 Troubleshooting without diagnostics ............................................................................................................ 60
Safety and comfort .............................................................................................................................................. 60
Before you call for technical support .................................................................................................................. 60
Helpful hints ........................................................................................................................................................ 61
Solving general problems .................................................................................................................................... 62
Solving power problems ...................................................................................................................................... 66
Solving hard drive problems ................................................................................................................................ 67
Solving media card reader problems ................................................................................................................... 69
Solving display problems .................................................................................................................................... 70
Solving audio problems ....................................................................................................................................... 75
Solving printer problems ..................................................................................................................................... 77
Solving keyboard and mouse problems .............................................................................................................. 78
Solving Hardware Installation Problems ............................................................................................................. 80
Solving Network Problems .................................................................................................................................. 81
Solving memory problems .................................................................................................................................. 84
Solving CD-ROM and DVD problems .................................................................................................................... 85
Solving USB ash drive problems ........................................................................................................................ 88
Solving front panel component problems .......................................................................................................... 89
Solving Internet access problems ....................................................................................................................... 89
Solving software problems .................................................................................................................................. 91
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 92
POST numeric codes and text messages ............................................................................................................. 92
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 97
8 Password security and resetting CMOS .......................................................................................................... 99
Resetting the password jumper .......................................................................................................................... 99
Clearing and resetting the BIOS ........................................................................................................................ 101
9 Using HP PC Hardware Diagnostics (UEFI) ..................................................................................................... 102
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 102
10 System backup and recovery ..................................................................................................................... 104
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 .............................................................. 104
Creating recovery media and backups ............................................................................................ 104
Restoring and recovering using Windows tools ............................................................................. 104
Using Reset when the system is not responding ......................................................... 105
Recovery using the Windows recovery USB ash drive ............................................... 105
Recovery using Windows operating system media (purchased separately) ............... 106
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 106
vii
Creating recovery media ................................................................................................................. 107
Creating recovery media using HP Recovery Manager (select models only) ............... 107
Creating recovery discs with HP Recovery Disc Creator (select models only) ............. 108
Creating recovery discs .............................................................................. 108
Backing up your information ........................................................................................ 109
System Restore ............................................................................................................................... 109
System Recovery ............................................................................................................................. 110
System Recovery when Windows is responding .......................................................... 110
System Recovery when Windows is not responding .................................................... 111
System Recovery using recovery media (select models only) ..................................... 111
Using HP Recovery Disc operating system discs (select models only) ........................ 112
Appendix A Battery replacement ................................................................................................................... 114
Appendix B Statement of Volatility ................................................................................................................ 117
Appendix C Power cord set requirements ........................................................................................................ 118
General requirements ........................................................................................................................................ 118
Japanese power cord requirements .................................................................................................................. 118
Country-specic requirements .......................................................................................................................... 119
Appendix D Specications ............................................................................................................................. 120
Index ........................................................................................................................................................... 121
viii
1 Product features
Standard conguration features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
NOTE: This computer model can be used in a tower orientation or a desktop orientation.
Serial number location
Each computer has a unique serial number and a product ID number that are located on the exterior of the
computer. Keep these numbers available for use when contacting customer service for assistance.
Standard conguration features 1
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the slim optical drive bay.
1 Slim Optical Drive (optional) 5 Headphone Connector
2 SD Card Reader (optional) 6 Hard Drive Activity Light
3 USB 3.0 Ports (blue) 7 Dual-State Power Button
4 Microphone Connector
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to POST error messages and diagnostic front panel LEDs and
audible codes on page 92 to interpret the code.
2 Chapter 1 Product features
Rear panel components
1 PS/2 Mouse Connector (green) 6 VGA Monitor Connector
2 Serial Connector 7 USB 2.0 Ports (black)
3 RJ-45 Network Connector 8 DisplayPort Monitor Connector
4 Line-In Audio Connector (blue) 9 USB 3.0 Ports (blue)
5 PS/2 Keyboard Connector (purple) 10 Line-Out Connector for powered audio
devices (green)
11 Power Cord Connector
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a conguration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
Rear panel components 3
2 Illustrated parts catalog
Computer major components
This chapter provides part information for all chassis.
Item Description
(1) System board (includes replacement thermal material)
(2) Front bezel
(3) Access panel
(4) Power supply, 180W, Energy Star 6.0
*Memory modules (PC4,17000, CL15)
16-GB
8-GB
4-GB
*Processors (include replacement thermal material)
4 Chapter 2 Illustrated parts catalog
Item Description
Intel Core i7 6700 (3.4-GHz, 8-MB L3 cache), 65W
Intel Core i5 6600 (3.3-GHz, 6-MB L3 cache), 65W
Intel Core i5 6500 (3.2-GHz, 6-MB L3 cache), 65W
Intel Core i3 6320 (3.9-GHz, 4-MB L3 cache), 65W
Intel Core i3 6300 (3.8-GHz, 4-MB L3 cache), 65W
Intel Core i3 6100 (3.7-GHz, 3-MB L3 cache), 65W
Intel Pentium G4520 (3.6-GHz, 3-MB L3 cache), 65W
Intel Pentium G4500 (3.5-GHz, 3-MB L3 cache), 65W
Intel Pentium G4400 (3.3-GHz, 3-MB L3 cache), 65W
Intel Celeron G3920 (2.9-GHz, 2-MB L3 cache), 65W
Intel Celeron G3900 (2.8-GHz, 2-MB L3 cache), 65W
Cables and adapters
Description
SATA data cable, 150 mm, 2 straight ends
SATA data cable, 200 mm, 2 straight ends
DisplayPort cable
M.2 USB cable
Adapter, USB to serial
Adapter, DisplayPort to VGA
Adapter, DisplayPort to DVI
Adapter, DisplayPort to HDMI 1.4
Adapter, DVI to VGA
Adapter, DVI-I to VGA (BFR/PVC free)
Cables and adapters 5
Misc parts
Item Description
(1) Fan
(2) Front I/O assembly
(3) Fan sink (includes replacement thermal material)
(4) SATA data cable, 150 mm, 2 straight ends
(5) SATA data cable, 200 mm, 2 straight ends
(6) Speaker
(7) Power switch assembly
(8) Printer port, PCI card
(9) GeForce GT 730 graphics card, 2 GB, DDR3, PCIe x8
Nvidia NVS 310 graphics card, 512 MB, DDR3, PCIe x16 (not illustrated)
*WLAN modules
Intel 802.11 a/b/g/n (2x2) + Bluetooth 4.0 Wireless NIC
Intel Dual Band Wireless 7265NV 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless 7265AN 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless-AC 3165
6 Chapter 2 Illustrated parts catalog
Item Description
*WLAN module adapter, PCIe card
*Intel PRO/1000 single port GbE NIC, includes bracket
*Card reader, 14-in-1, USB 2.0
*Rubber feet
*Optical drive bezel blank
*Grommet, hard drive
*HP Ultraslim Keyed Cable Lock
*HP Dual Head Keyed Cable Lock
*HP Master Keyed Cable Lock, 10mm
*Chassis stand
*Power cord
*WLAN antennas
*Mouse
PS2, optical
HP USB laser
Washable
HP USB Antimicrobial
USB, optical
HP wireless
HP USB hardened
*Keyboard
HP Conferencing
PS/2 slim
PS/2
USB, slim
USB
USB, Essential
USB, unbranded, Katydid
PS2/USB washable
Smartcard USB
Wireless keyboard and mouse with dongle
Anitmicrobial
Misc parts 7
Drives
Item Description
(1) Hard drive
2 TB, 7200 rpm, 3.5 inch
1 TB, 7200 rpm, 3.5 inch
1 TB hard drive, hybrid SSD
500 GB, 7200 rpm, 3.5 inch
500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED)
500 GB, 5400 rpm, 2.5 inch, FIPS
500 GB hard drive, hybrid SSD
512-GB Solid-state Drive (SSD), 3D, NAND
256-GB Solid-state Drive (SSD), 3D, NAND
256-GB Solid-state Drive (SSD), self-encrypting (SED)
256-GB Solid-state Drive (SSD)
180-GB Solid-state Drive (SSD)
180-GB Solid-state Drive (SSD), MLC, OPAL2.0
128-GB Solid-state Drive (SSD)
128-GB Solid-state Drive (SSD), 3D, NAND
128-GB Solid-state Drive (SSD), self-encrypting (SED)
120-GB Solid-state Drive (SSD)
120-GB Solid-state Drive (SSD), MLC, OPAL2.0
(2) Optical drive
Blu-ray BD-RW SuperMulti XL Drive
DVD±RW drive
DVD-ROM drive
8 Chapter 2 Illustrated parts catalog
3 Routine care, SATA drive guidelines, and
disassembly preparation
This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.
CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system
board. You must disconnect the power cord from the power source before opening the computer to prevent
system board or component damage.
Electrostatic discharge information
A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive
devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device
exposed to electrostatic discharge (ESD) may not appear to be 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 information 9
Generating static
The following table shows that:
●Dierent activities generate dierent amounts of static electricity.
●Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs from plastic tube
7,500 V
3,000 V
400 V
400 V
15,000 V
5,000 V
800 V
700 V
35,000 V
12,000 V
6,000 V
2,000 V
Removing DIPs from vinyl tray
Removing DIPs from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
2,000 V
3,500 V
7,000 V
5,000 V
4,000 V
5,000 V
20,000 V
11,000 V
11,500 V
14,500 V
26,500 V
21,000 V
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.
●Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●Place items on a grounded surface before removing them from their container.
●Always be properly grounded when touching a sensitive component or assembly.
●Avoid contact with pins, leads, or circuitry.
●Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
Personal grounding methods and equipment
Use the following equipment to prevent static electricity damage to equipment:
●Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords.
To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be
connected and t snugly into the banana plug connector on the grounding mat or workstation.
10 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with
most types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with
a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
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:
●Antistatic tape
●Antistatic smocks, aprons, or sleeve protectors
●Conductive bins and other assembly or soldering aids
●Conductive foam
●Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
●Static-dissipative table or oor mats with hard tie to ground
●Field service kits
●Static awareness labels
●Wrist straps and footwear straps providing one-megohm +/- 10% resistance
●Material handling packages
●Conductive plastic bags
●Conductive plastic tubes
●Conductive tote boxes
●Opaque shielding bags
Electrostatic discharge information 11
●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 monitor 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 monitor with any type of material.
●Install or enable power management functions of the operating system or other software, including
sleep states.
Routine care
General cleaning safety precautions
1. Never use solvents or ammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use
the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.
Cleaning the Computer Case
Follow all safety precautions in General cleaning safety precautions on page 12 before cleaning the computer.
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
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 12 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 12.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 12
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 monitor
●Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for
cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into the
housing and damage a component. Never use solvents or ammable liquids on the monitor.
●To clean the monitor body follow the procedures in Cleaning the Computer Case on page 12.
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 12.
Routine care 13
Service considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.
Power supply fan
The power supply fan is a variable-speed fan based on the temperature in the power supply.
CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is o when
the computer is in “Standby,” “Suspend,” or “O” modes.
You must disconnect the power cord from the power source before opening the computer to prevent system
board or component damage.
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.
14 Chapter 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.
●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 monitors 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.
SATA hard drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage dierential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for conguring drive N/A
Data transfer rate 6.0 Gb/s
SATA hard drives 15
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.
SMART ATA drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers
have built-in drive failure prediction that warns the user or network administrator of an impending failure or
crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as
reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is
imminent, it generates a fault alert.
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.
16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
4 Removal and replacement procedures:
Small Form Factor
Adherence to the procedures and precautions described in this chapter is essential for proper service. After
completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all
components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
Preparation for disassembly
WARNING! Voltage is always present on the system board when the computer is plugged into an active AC
outlet. To avoid possible personal injury and damage to the equipment the power cord should be
disconnected from the computer and/or the AC outlet before opening the computer.
See Routine care, SATA drive guidelines, and disassembly preparation on page 9 for initial safety procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Turn o the computer before disconnecting any cables.
Regardless of the power-on state, voltage is always present on the system board as long as the system
is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in
the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a
unit.
5. If the computer is on a stand, remove the computer from the stand and lay the computer down.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing. Keep all
screws with the units removed.
Preparation for disassembly 17
Access panel
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Loosen the thumbscrew on the rear of the computer (1) then slide the panel back (2) and lift if o the
computer (3).
To install the access panel, reverse the removal procedure.
Front bezel
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Lift up the three tabs on the top side of the bezel (1), and then rotate the bezel o the chassis (2).
NOTE: You may need a tool to pry up the three bezel tabs, or you can remove the hard drive cage to
make the tabs easier to access.
To install the front bezel, reverse the removal procedure.
18 Chapter 4 Removal and replacement procedures: Small Form Factor
Slim optical drive bezel blank
On some models, there is a bezel blank covering the slim optical drive bay that needs to be removed before
installing an optical drive. To remove a bezel blank:
1. Remove the access panel (Access panel on page 18).
2. Remove the front bezel (Front bezel on page 18).
3. To remove a slim optical drive bezel blank, press inward on the two retaining tabs (1) and pull the blank
o the front bezel (2).
Slim optical drive bezel blank 19
Expansion card
Description
Printer port, PCI card
GeForce GT 730 graphics card, 2 GB, DDR3, PCIe x8
Nvidia NVS 310 graphics card, 512 MB, DDR3, PCIe x16
Intel 802.11 a/b/g/n (2x2) + Bluetooth 4.0 Wireless NIC
Intel Dual Band Wireless 7265NV 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless 7265AN 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless-AC 3165
WLAN module adapter, PCIe card
Intel PRO/1000 single port GbE NIC, includes bracket
The computer has one PCI Express x1 expansion socket and one PCI Express x16 expansion socket.
NOTE: The PCI Express sockets support only low prole cards.
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express x16 socket.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
4. Rotate the slot cover release latch to the open position.
20 Chapter 4 Removal and replacement procedures: Small Form Factor
5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to
the expansion card.
a. If you are installing an expansion card in a vacant PCI Express x16 socket, remove the appropriate
expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the
inside of the chassis.
b. If you are installing an expansion card in a vacant PCI Express x1 socket, insert a atblade
screwdriver into the slots on the rear of expansion slot cover (1) and rock the slot cover back and
forth to break it free from the chassis (2).
Expansion card 21
c. If you are removing a PCI Express x1 card, hold the card at each end, and carefully rock it back and
forth until the connectors pull free from the socket. Pull the expansion card straight up from the
socket.
d. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion
socket away from the card and carefully rock the card back and forth until the connectors pull free
from the socket. Pull the expansion card straight up from the socket.
6. Store the removed card in anti-static packaging.
7. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot
cover for proper cooling of internal components during operation.
22 Chapter 4 Removal and replacement procedures: Small Form Factor
8. To install a new expansion card, hold the card just above the expansion socket on the system board then
move the card toward the rear of the chassis (1) so that the bracket on the card is aligned with the open
slot on the rear of the chassis. Press the card straight down into the expansion socket on the system
board (2).
NOTE: When installing an expansion card, press rmly on the card so that the whole connector seats
properly in the expansion card socket.
9. Rotate the slot cover retention latch back in place to secure the expansion card.
10. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if
needed.
11. Recongure the computer, if necessary.
Expansion card 23
Drive cage
You can remove the drive cage from the computer. You must remove the optical drive to remove the drive
cage. Remove the hard drive from the cage after removing the drive cage.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the optical drive from the drive cage:
a. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive.
b. Press the release lever on the back of the drive (3).
c. Slide the drive out of the front of the chassis (4).
3. Disconnect the data cable (1) and power cable (2) from the rear of the hard drive, and remove the cables
from the retainer clip (3).
24 Chapter 4 Removal and replacement procedures: Small Form Factor
4. Press inward on the drive cage release latch (1), rotate the drive cage up (2), and then slide the tabs on
the side of the drive cage out of the chassis (3).
To install the drive cage, reverse the removal procedure.
Drive cage 25
Memory
Description
16-GB, PC4-17000
8-GB, PC4-17000
4-GB, PC4-17000
The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM)
dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These
memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory
support, you can populate the system board with up to 32-GB of memory congured in a high-performing
dual channel mode.
DDR4-SDRAM DIMMs
For proper system operation, the DIMMs must be:
●industry-standard 288-pin
●unbuered non-ECC PC4-17000 DDR4-2133 MHz-compliant
●1.2 volt DDR4-SDRAM DIMMs
The DIMMs must also:
●support CAS latency 15 DDR4 2133 MHz (15-15-15 timing)
●contain the mandatory JEDEC SPD information
In addition, the computer supports:
●512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●single-sided and double-sided DIMMs
●DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
Populating DIMM sockets
There are two DIMM sockets on the system board, with one socket per channel. The sockets are labeled
DIMM1 and DIMM3. Socket DIMM1 operates in memory channel B. Socket DIMM3 operates in memory channel
A.
The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending
on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory congurations will result in inferior graphics
performance.
26 Chapter 4 Removal and replacement procedures: Small Form Factor
●The system will operate in single channel mode if the DIMM sockets are populated in one channel only.
●The system will operate in a higher-performing dual channel mode if the memory capacity of the DIMM
in Channel A is equal to the memory capacity of the DIMM in Channel B.
●The system will operate in ex mode if the memory capacity of the DIMM in Channel A is not equal to the
memory capacity of the DIMM 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 DIMM in the system.
Removing and installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain
before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to
the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing
memory modules while voltage is present may cause irreparable damage to the memory modules or system
board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important
to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from
having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before beginning
these procedures, ensure that you are discharged of static electricity by briey touching a grounded metal
object.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the
module.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the optical drive and the drive cage (Drive cage on page 24).
4. To remove a memory module, open both latches of the memory module socket (1), and then remove the
memory module from the socket (2).
Memory 27
5. To install a memory module, open both latches of the memory module socket (1), and insert the
memory module into the socket (2).
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
For maximum performance, populate the sockets so that the memory capacity is spread as equally as
possible between Channel A and Channel B.
6. Push the module down into the socket, ensuring that the module is fully inserted and properly seated.
Make sure the latches are in the closed position (3).
The computer should automatically recognize the additional memory the next time you turn on the computer.
28 Chapter 4 Removal and replacement procedures: Small Form Factor
System board connections
Refer to the following illustration and table to identify the system board connectors for your model.
No. System Board Connector System Board Label Color Component
1 PCI Express x16 X16PCIEXP black Expansion Card
2 PCI Express x1 X1PCIEXP1 black Expansion Card
3 DIMM3 (Channel A) DIMM3 black Memory Module
4 DIMM1 (Channel B) DIMM1 black Memory Module
5 Battery BAT black Memory Module
6 SATA 3.0 SATA1 light blue Optical Drive
7 SATA 3.0 SATA0 dark blue Primary Hard Drive
System board connections 29
Drives
Hard drive
2 TB, 7200 rpm, 3.5 inch
1 TB, 7200 rpm, 3.5 inch
1 TB hard drive, hybrid SSD
500 GB, 7200 rpm, 3.5 inch
500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED)
500 GB, 5400 rpm, 2.5 inch, FIPS
500 GB hard drive, hybrid SSD
512-GB Solid-state Drive (SSD), 3D, NAND
256-GB Solid-state Drive (SSD), 3D, NAND
256-GB Solid-state Drive (SSD), self-encrypting (SED)
256-GB Solid-state Drive (SSD)
180-GB Solid-state Drive (SSD)
180-GB Solid-state Drive (SSD), MLC, OPAL2.0
128-GB Solid-state Drive (SSD)
128-GB Solid-state Drive (SSD), 3D, NAND
128-GB Solid-state Drive (SSD), self-encrypting (SED)
120-GB Solid-state Drive (SSD)
120-GB Solid-state Drive (SSD), MLC, OPAL2.0
Optical drive
Blu-ray BD-RW SuperMulti XL Drive
DVD±RW drive
DVD-ROM drive
When installing drives, follow these guidelines:
●The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on
the system board labeled SATA0.
●Connect an optical drive to the light blue SATA connector on the system board labeled SATA1.
30 Chapter 4 Removal and replacement procedures: Small Form Factor
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn o the computer, and
unplug the power cord. Do not remove a 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.
Handle a drive carefully; do not drop it.
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
monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label the
package “Fragile: Handle With Care.”
Drive positions
1 9.5mm slim optical drive bay
2 Hard drive bay
NOTE: The drive conguration on your computer may be dierent than the drive
conguration shown above.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
Removing a 9.5mm slim optical drive
CAUTION: All removable media should be taken out of a drive before removing the drive from the computer.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
Drives 31
3. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. Press the release
lever on the back of the drive (3), and then slide the drive out of the front of the chassis (4).
CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to avoid
damaging the cable.
Installing a 9.5mm slim optical drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the front bezel (Front bezel on page 18) if you are installing a drive in a bay covered by a bezel
blank, and then remove the bezel blank. See Slim optical drive bezel blank on page 19 for more
information.
4. Align the small pin on the release latch with the small hole on the side of the drive and press the latch
rmly onto the drive.
5. Install the optical drive.
32 Chapter 4 Removal and replacement procedures: Small Form Factor
6. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2), and
then connect the power cable (3) and data cable (4) to the rear of the drive.
7. Connect the opposite end of the data cable to the light blue SATA connector on the system board labeled
SATA1.
NOTE: Refer to System board connections on page 29 for an illustration of the system board drive
connectors.
Removing and replacing a hard drive
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you
can transfer the data to the new hard drive.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the optical drive and drive cage (Drive cage on page 24).
4. Remove the hard drive from the drive cage.
●If you are removing a 3.5-inch hard drive, remove the four screws that secure the drive to the drive
cage (1), and then slide the drive out of the cage (2).
Drives 33
●If you are removing a 2.5-inch hard drive, remove the four screws that secure the drive to the drive
cage (1) to release the drive (2).
5. Install the new drive in the drive cage.
●If you are installing a 3.5-inch hard drive, slide the drive in the drive cage (1) and secure the drive
with four 6-32 standard screws (2).
NOTE: The four screw holes for the 3.5-inch hard drive are stamped “A” on the top of the drive
cage.
34 Chapter 4 Removal and replacement procedures: Small Form Factor
●If you are installing a 2.5-inch hard drive, place the drive in the drive cage (1) and secure the drive
with four M3 metric screws (2).
NOTE: The four screw holes for the 2.5-inch hard drive are stamped “B” on the top of the drive
cage.
6. Lower the drive cage into place.
Drives 35
7. Connect the power cable (1) and data cable (2) to the rear of the hard drive, and route the cables
through the retainer clip (3).
8. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2), and
then connect the power cable (3) and data cable (4) to the rear of the drive.
9. Reassemble the computer.
36 Chapter 4 Removal and replacement procedures: Small Form Factor
Fan
The fan is attached to the rear of the chassis with two Phillips screws.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. From the outside, rear of the chassis, remove the two Phillips screws that secure the fan to the chassis.
4. From inside the chassis, disconnect the fan cable from the system board connector labeled CHFAN (1).
5. Lift the fan out of the chassis (2).
To install the fan, reverse the removal procedures.
Fan 37
Fan sink
The fan sink is secured atop the processor with four captive Torx screws. The fan sink includes a heat sink and
a fan.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Loosen the four captive Torx T15 screws (1) that secure the fan sink to the system board tray, and then
disconnect the fan cable from the system board connector labeled CPUFAN (2).
CAUTION: Remove fan 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.
4. Lift the heat sink from atop the processor.
When reinstalling the fan sink, make sure that its bottom has been cleaned with an alcohol wipe and fresh
thermal grease has been applied to the top of the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
seat the fan sink on the processor to avoid damage that could require replacing the system board.
Make sure to replace the fan duct. Failure to install the fan duct may cause the computer to overheat.
38 Chapter 4 Removal and replacement procedures: Small Form Factor
Processor
Description
Intel Core i7 6700 (3.4-GHz, 8-MB L3 cache), 65W
Intel Core i5 6600 (3.3-GHz, 6-MB L3 cache), 65W
Intel Core i5 6500 (3.2-GHz, 6-MB L3 cache), 65W
Intel Core i3 6320 (3.9-GHz, 4-MB L3 cache), 65W
Intel Core i3 6300 (3.8-GHz, 4-MB L3 cache), 65W
Intel Core i3 6100 (3.7-GHz, 3-MB L3 cache), 65W
Intel Pentium G4520 (3.6-GHz, 3-MB L3 cache), 65W
Intel Pentium G4500 (3.5-GHz, 3-MB L3 cache), 65W
Intel Pentium G4400 (3.3-GHz, 3-MB L3 cache), 65W
Intel Celeron G3920 (2.9-GHz, 2-MB L3 cache), 65W
Intel Celeron G3900 (2.8-GHz, 2-MB L3 cache), 65W
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the fan sink (Fan sink on page 38).
4. Rotate the locking lever to its full open position (1).
5. Raise and rotate the microprocessor retainer to its fully open position (2).
6. 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://www8.hp.com/us/en/support-drivers.html.
Processor 39
Power supply
WARNING! To reduce potential safety issues, only the power supply provided with the computer, a
replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be
used with the computer.
The power supply is located at the rear of the chassis. It is held in place by three Torx screws outside of the
chassis.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the drive cage (Drive cage on page 24).
4. From the outside, rear of the computer, remove the three Torx screws that secure the power supply to
the rear of the chassis.
5. Release the power supply cables from the cable retaining clips.
6. Disconnect all power cables from the following system board connectors:
●PWRCPU
●PWR
40 Chapter 4 Removal and replacement procedures: Small Form Factor
7. From the inside of the chassis, slide the power supply forward, and then lift it out of the chassis.
To install the power supply, reverse the removal procedure.
CAUTION: When installing the power supply cables, make sure they are properly positioned in the clip under
the drive cage.
Power supply 41
Front I/O assembly
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the front bezel (Front bezel on page 18).
4. Remove the drive cage (Drive cage on page 24).
5. Disconnect the cables from the system board as follows:
(1): Blue connector labeled FRONT USB 3.0
(2): Blue connector labeled FRONT AUD
6. Remove the cables from the cable clips under the drive cage (3).
7. Remove the Torx screw that secures the assembly to the front of the chassis.
8. Pull the assembly out of the front of the computer.
NOTE: Be sure to correctly route the cables beneath the drive cage when reinstalling the assembly. Proper
cable routing prevents damage to the cables and allows the drive cage to close properly.
42 Chapter 4 Removal and replacement procedures: Small Form Factor
Power switch assembly
The power switch assembly is attached to the front of the chassis under the drive cage.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the front bezel (Front bezel on page 18).
4. Remove the drive cage (Drive cage on page 24).
5. From inside the chassis, disconnect the cable from the system board connector labeled PB/LED (1).
6. Press the tab on the left side of the power switch (2).
7. Pull the power switch out the front of the chassis while threading the cable through the hole in the front
of the chassis (3).
To install the power switch assembly, rst insert the cable through the hole from the front of the chassis.
After inserting the cable, place the bottom of the assembly into the slot, and then rotate the top up until it
snaps into place.
Power switch assembly 43
Speaker
The speaker is attached to the front of the chassis under the drive cage.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the front bezel (Front bezel on page 18).
4. Remove the drive cage (Drive cage on page 24).
5. From the outside, front of the chassis, remove the two Torx screws that secure the speaker to the
chassis.
6. Disconnect the speaker cable from the system board labeled SPKR (1).
7. Remove the speaker cable from the metal clip (2), and then remove the speaker from the computer (3).
To install the speaker, reverse the removal procedures.
System board
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. When replacing the system board, make sure the following components are removed from the defective
system board and installed on the replacement system board:
44 Chapter 4 Removal and replacement procedures: Small Form Factor
●Memory modules (Memory on page 26)
●Expansion cards (Expansion card on page 20)
●Fan sink (Fan sink on page 38)
●Processor (Processor on page 39)
4. Remove the drive cage (Drive cage on page 24).
5. Disconnect cables from the system board.
6. Remove the six Torx screws (1) that secure the system board to the chassis.
7. Slide the system board toward the front of the chassis to disengage the connectors (2).
8. Lift the system board up and out of the chassis (3).
To install the system board, reverse the removal procedure.
NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS.
CAUTION: When reconnecting the cables it is important that they be positioned correctly.
System board 45
System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
XU1 Silver Processor SATA1 Light blue Any SATA Device other
than the primary hard
drive
PWRCPU White 4-pin processor power SPKR White Speaker
CPUFAN Red Processor fan SD RDR Black Card reader
DIMM3 Black Memory module PSWD Green Clear system passwords
DIMM1 Black Memory module X16PCIEXP Black Expansion card
BAT Black RTC battery X1PCIEXP1 Black Expansion card
PB/LED Black Power switch FRONT AUD Blue Front I/O
PWR White 24-pin main power FRONT USB3.0 Blue Front I/O
CHFAN Black Rear fan connector CMOS Yellow Reset CMOS
SATA0 Dark blue Hard drive
46 Chapter 4 Removal and replacement procedures: Small Form Factor
Changing from desktop to tower conguration
The Small Form Factor computer can be used in a tower orientation with an optional tower stand that can be
purchased from HP.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Orient the computer so that its right side is facing down and place the computer in the optional stand.
NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower
stand.
3. Reconnect the power cord and any external devices, then turn on the computer.
NOTE: Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer remains clear
and free of obstructions.
Changing from desktop to tower conguration 47
5 Computer Setup (F10) Utility
Computer Setup (F10) Utilities
Use Computer Setup (F10) Utility to do the following:
●Change settings from the defaults or restore the settings to default values.
●View the system 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 monitor 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 monitor 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.
48 Chapter 5 Computer Setup (F10) Utility
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, select Apply Custom Defaults and Exit. If no custom defaults have been saved, then
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.
Computer Setup (F10) Utilities 49
Computer Setup–Main
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-1 Computer Setup—Main
Option Description
System Information Lists all information in following list if Advanced System Information is selected. Lists smaller subset if
Basic System Information is selected.
●Product name
●Installed memory size
●Processor type
●Processor cache size (L1/L2/L3)
●Processor speed
●MicroCode Revision
●Processor Stepping
●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 Diagnostics If the hard drive has the HP Advanced Diagnostics installed, the application will launch. If HP Advanced
Diagnostics is not installed, then a basic version built into the BIOS will provide the capability to perform
the following functions:
●Memory Test
●Hard Drive Check
●Language
Update System BIOS Lets you update the system BIOS from www.hp.com or another network server, from a removable USB
drive, or from a le located on the hard drive.
●‘Check HP.com for BIOS Updates’ or ‘Check the Network for BIOS Updates’
The string that appears here depends on the setting in ‘BIOS Update Preferences’.
50 Chapter 5 Computer Setup (F10) Utility
Table 5-1 Computer Setup—Main (continued)
●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.
System IDs Lets you set the following values:
●Asset Tracking Number
●Ownership Tag
Replicated Setup Backup 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 Defaults Saves the current system conguration settings as the custom default set.
Apply Custom Defaults
and Exit
Applies the custom default settings to the computer after rebooting. Does not apply to options in the
Security menu.
Apply Factory Defaults
and Exit
Restores the factory system conguration settings to the computer after rebooting. Does not apply to
options in the Security menu.
Ignore Changes and Exit Exits Computer Setup without applying or saving any changes.
Save Changes and Exit Saves changes to current system conguration, exits Computer Setup, and reboots.
Computer Setup (F10) Utilities 51
Computer Setup—Security
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-2 Computer Setup—Security
Option Description
Set up BIOS
Administrator Password
Lets you set and enable a BIOS administrator password, which includes the following privileges:
●Manage other BIOS users
●Full access to BIOS policy and settings
●Unlock the computer when other BIOS users fail the preboot authentication.
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.
Change BIOS
Administrator Password
(This selection is active
only if a BIOS
administrator password is
set.)
Lets you change the BIOS administrator password.
You must know the current password to be able to change it.
Password Policies Let you set the guidelines for a valid password. Options include:
●Password minimum length
●Requires at least one symbol
●Requires at least one number
●Requires at least one upper case character
●Requires at least one lower case character
●Allow spaces
Clear Password Jumper
Select ‘Honor’ to allow or ‘Ignore’ to not allow the absence of the password jumper to clear the passwords
at boot up. Default is ‘Honor’.
Security Conguration TPM Embedded Security
●TPM Device
Lets you set the Trusted Platform Module as available or hidden.
●TPM State
Select to enable the TPM.
●TPM Clear
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.
BIOS Sure Start
●Verify Boot Block on every Boot
Select to check validity of boot block region each boot. If not selected, boot block region will be
validated on power cycles.
52 Chapter 5 Computer Setup (F10) Utility
Table 5-2 Computer Setup—Security (continued)
●Data Recovery Policy
Select ‘Automatic’ or ‘Manual’ to set data recovery policy. ‘Manual’ lets you select whether or not to
execute recovery of a corrupted region if it is detected.
Set Up BIOS Power-On
Password
Lets you set and enable a BIOS power-on password. 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.
Change BIOS Power-On
Password
(This selection is active
only if a BIOS power-on
password is set.)
Lets you change the BIOS power-on password.
You must know the current password to be able to change it.
DriveLock Allows you to assign or modify a master or user password for hard drives. When this feature is enabled,
the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully
entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during
a subsequent cold-boot sequence.
NOTE: This selection will only appear when at least one drive that supports the DriveLock feature is
attached to the system.
CAUTION: Be aware that these settings take place immediately. A save is not necessary.
CAUTION: Be sure to document the DriveLock password. Losing a DriveLock password will render a drive
permanently locked.
After you select a drive, the following options are available:
Set DriveLock Master Password. Sets the drive’s master password but does not enable DriveLock.
Enable DriveLock. Sets the drive’s user password and enables DriveLock.
Secure Erase Lets you select a hard drive to completely erase.
Once a hard drive has been erased with a program that utilizes Secure Erase rmware commands, no le
recovery program, partition recovery program, or other data recovery method will be able to extract data
from the drive.
Save/Restore MBR of the
system hard drive
NOTE: Windows 8.1 and 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.
Smart Cover Cover Lock (Lock/Unlock)
Computer Setup (F10) Utilities 53
Table 5-2 Computer Setup—Security (continued)
Default is ‘Unlock’.
Cover Removal Sensor (Disabled/Notify user/Administrator password)
Lets you disable the cover sensor or congure what action is taken if the computer cover was removed.
Default is ‘Disabled’.
NOTE: Notify user alerts the user with a POST error on the rst boot after the sensor detects removal of
the cover. If the password is set, Administrator Password requires that the password be entered to boot
the computer if the sensor detects that the cover has been removed.
System Management
Command
Allows authorized personnel to reset security settings during a service event. Default is enabled.
Restore Security
Settings to Default
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.
Table 5-3 Computer Setup—Advanced (for advanced users)
Option Heading
Display Language Lets you select the language of the menus in F10 Setup and the keyboard layout.
Scheduled Power-On This feature wakes the system up from a powered o state at a specied date and time.
Boot Options Select the devices that the computer can boot from, as well as other options, including:
●Startup Menu 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.
●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’.
●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.
54 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
●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 monitor 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
Legacy Support – 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. Windows 7 for instance requires legacy
support, whereas Windows 8 does not.
Secure Boot – 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.
Default is ‘Legacy Support Enable and Secure Boot Disable’ for Windows 7 and other non-Windows
congurations. Default is ‘Legacy Support Disable and Secure Boot Enable’ for Windows 8.1 and later
congurations.
Secure Boot Key Management
Lets you manage the custom key settings.
Clear Secure Boot Keys
Lets you delete any previously loaded custom boot keys. Clearing keys will disable secure boot. Default is
disabled.
Reset Secure Boot keys to factory defaults
Default is disabled.
Enable MS UEFI CA key
Disabling this setting alters the Secure Boot key list to further restrict the allowed software
components. Set this option to ‘disable’ to support Device Guard.
System Options Congure Storage Controller for RAID (enable/disable)
Lets you enable onboard RAID. Default is disabled.
POST Prompt for RAID Conguration (Intel only)
When disabled, the prompt for ‘RAID option ROM’ in legacy mode is suppressed.
SVM CPU Virtualization (AMD 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 (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.
Computer Setup (F10) Utilities 55
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
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.
PCI Express Slot x (enable/disable)
Lets you disable individual expansion slots.
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 Options Embedded LAN Controller
Select to show the device in the operating system. Default is enabled.
Wake On LAN
Lets you either disable the Wake On LAN feature, or congure where the computer boots, including the
network or hard drive. Default is Boot to Network.
Dust Filter
Select to enable the Dust Filter replacement reminder, which can be set for 15, 30, 60, 90, 120, or 180
days. The reminder will show during POST after the reminder timer has expired.
Video Memory Size
Use this option to manage graphics memory allocation. The value you choose is allocated permanently to
graphics and is unavailable to the operating system.
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.
Integrated Camera
Clear to disable the integrated webcam. 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.
Fingerprint Device
Select to show the device in the operating system. Default is enabled.
Touch Panel
Clear to disable the display panel touch feature. Default is enabled.
Port Options Allows you to hide the following ports from the operating system:
●Serial port A
56 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
●Serial port B
●SATA0
●SATA1
●SATA2
●SATA3
●SATA5
●Front USB ports
●Rear USB ports
●USB charging port function
●Media card reader
Restrict USB Devices
Specify the following categories of USB devices to enable:
●Allow all USB devices
●Allow only keyboard and mouse
●Allow all but storage devices and hubs.
When some devices are restricted, the system will disable USB ports that do not meet the allowed
criteria. This feature is usually combined with similar policies within the operating system since USB
devices can be moved to dierent ports. The ports disabled by the BIOS will remain disabled until the
system is restarted.
Option ROM Launch
Policy
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
Power Management
Options
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.
Unique Sleep State Blink Rates (enable/disable)
Computer Setup (F10) Utilities 57
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
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.
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.
Remote Management
Options
Active Management (AMT) (Intel only) (enable/disable). Default is enabled.
Allows you to discover, repair, and protect networked computing devices.
USB Key Provisioning Support (enable/disable) Default is disabled.
USB Redirection Support (enable/disable). Default is enabled.
USB redirection allows USB devices plugged into a client computer to be transparently redirected to the
guest operating system.
Uncongure AMT on next boot (Do Not Apply/Apply). Default is ‘Do Not Apply’.
SOL Terminal Emulation Mode (ANSI / VT100). Default is ANSI.
SOL terminal emulation mode is only activated during remote AMT redirection operations. The emulation
options allow administrators to select which mode works best with their console.
Show Uncongure ME Conrmation Prompt (enable/disable). Default is enabled.
Verbose Boot Messages (enable/disable). Default is enabled.
Verbose boot shows additional logging information during the boot. mainly for debugging if something
goes wrong during bootup.
Watchdog Timer (enable/disable). Default is enabled.
Allows you to set amount of time for a operating system and BIOS watchdog alert to be sent if the timers
are not deactivated. BIOS watchdog is deactivated by BIOS and would indicate that a halt occurred during
execution if the alert is sent to the management console. An operating system alert is deactivated by the
operating system image and would indicate that a hang occurred during its initialization.
●OS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
●BIOS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
CIRA Timeout (min.) (1/2/3/4/Never)
CIRA is Customer Initiated Remote Assistance, an Intel service to help users employing Active
Management Technology (AMT).
58 Chapter 5 Computer Setup (F10) Utility
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 50 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 50 in the Computer Setup—File table.)
Recovering the Conguration Settings 59
6 Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard
drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the
computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on 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 92.
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 48 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 92 for more information.
●If the screen is blank, plug the monitor into a dierent video port on the computer if one is available. Or,
replace the monitor with a monitor that you know is functioning properly.
●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 61 in this guide.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-
solve 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.
60 Chapter 6 Troubleshooting without diagnostics
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your
service call is handled properly:
●Be in front of your computer when you call.
●Write down the computer serial number, product ID number, and monitor serial 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, monitor, or software, see the following list of general
suggestions before taking further action:
●Check that the computer and monitor are plugged into a working electrical outlet.
●Check that the voltage select switch (some models) is set to the appropriate voltage for your region
(115V or 230V).
●Check that the computer is turned on and the white power light is on.
●Check that the monitor is turned on and the green monitor 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 92 for more information.
●Turn up the brightness and contrast controls of the monitor if the monitor is dim.
●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.
●Recongure the computer after installing a non-plug and play expansion board or other option. See
Solving Hardware Installation Problems on page 80 for instructions.
●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 (CD/DVD or USB device) from the system before turning it on.
Helpful hints 61
●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.
●If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded
video on some models only) and a single monitor, the monitor must be plugged into the monitor
connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors
are disabled and if the monitor is connected into these ports, the monitor will not function. You can
select which source will be the default VGA source in Computer Setup.
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.
Solving general problems
You may be able to easily resolve the general problems described in this section. If a problem persists and you
are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an
authorized dealer or reseller.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system
board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect
the power cord from the wall outlet and allow the internal system components to cool before touching.
Cannot access the Computer Setup (F10) Utility when booting the computer.
Cause Solution
The Computer Setup (F10) Utility is set to “fast boot” causing the
F10 access screen to display too briey when booting the
computer.
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.
Computer appears locked up and will not turn o when the power button is pressed.
Cause Solution
Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds
until the computer turns o.
2. Disconnect the power cord from the electrical outlet.
Computer will not respond to keyboard or mouse.
Cause Solution
Computer is in Sleep state. To resume from Sleep state, press the power button.
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.
62 Chapter 6 Troubleshooting without diagnostics
Computer date and time display is incorrect.
Cause Solution
RTC (real-time clock) battery may need to be replaced.
NOTE: Connecting the computer to a live AC outlet prolongs the
life of the RTC battery.
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.
To access Control Panel in Windows 8.1, from the Start screen,
type c, and then select Control Panel from the list of
applications.
To access Control Panel in Windows 10, type control panel in
the taskbar search box, and then select Control Panel.
There is no sound or sound volume is too low.
Cause Solution
System volume may be set low or muted. 1. Check the 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.
Cause Solution
Smart Cover Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.
In case of forgotten password, power loss, or computer
malfunction, you must manually disable the Smart Cover lock . A
key to unlock the Smart Cover Lock is not available from HP. Keys
are typically available from a hardware store.
Poor performance.
Cause Solution
Processor is too hot. 1. Make sure airow to the computer is not blocked. Leave a
10.2-cm (4-inch) clearance on all vented sides of the
computer and above the monitor to permit the required
airow.
2. Make sure fans are connected and working properly (some
fans only operate when needed).
Solving general problems 63
Poor performance.
Cause Solution
3. Make sure the processor heat sink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on the
hard drive.
Low on memory. Add more memory.
Hard drive fragmented. Defragment hard drive.
Program previously accessed did not release reserved memory
back to the system.
Restart the computer.
Virus resident on the hard drive. Run virus protection program.
Too many applications running. 1. Close unnecessary applications to free up memory.
2. Add more memory.
3. Some applications run in the background and can be closed
by right-clicking on their corresponding icons in the task
tray. To prevent these applications from launching at
startup:
In Windows 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,
clear applications that you do not want to launch
automatically, and the click OK.
In Windows 8.1:
a. On the Start screen, right-click, and then select the All
apps icon.
b. Under Windows System, click Run.
c. Type msconfig, and then press Enter.
d. On the Startup tab of the System Conguration Utility,
clear applications that you do not want to launch
automatically, and the click OK.
In Windows 10:
a. Type msconfig in the taskbar search box, and then
select mscong.
b. On the Startup tab of the System Conguration Utility,
click Open Task Manager.
c. Select applications that you do not want to launch
automatically, and the click Disable.
Some software applications, especially games, are stressful on
the graphics subsystem.
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.
Cause unknown. Restart the computer.
64 Chapter 6 Troubleshooting without diagnostics
Computer powered o automatically and the Power LED ashes red four times and then white two times.
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
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.
System does not power on and the LEDs on the front of the computer are not ashing.
Cause Solution
System unable to power on. Press and hold the power button for less than 4 seconds. If the
hard drive LED turns white, then:
1. If equipped with a voltage selector, check that the voltage
selector (located on the rear of the power supply) is set to
the appropriate voltage. Proper voltage setting depends on
your region.
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.
Solving general problems 65
Solving power problems
Common causes and solutions for power problems are listed in the following table.
Power supply shuts down intermittently.
Cause Solution
If equipped with a voltage selector, voltage selector switch on
rear of computer chassis (some models) not switched to correct
line voltage (115V or 230V).
Select the proper AC voltage using the selector switch.
Power supply will not turn on because of internal power supply
fault.
Replace the power supply.
Computer powered o automatically and the Power LED ashes Red two times, once every second, followed by a two second
pause, and the computer beeps two times. (Beeps stop after fth iteration but LEDs continue ashing.)
Computer powered o automatically and the Power LED ashes red four times and then white two times.
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
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.
Power LED ashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps
stop after fth iteration but LEDs continue ashing.)
Computer powered o automatically and the Power LED ashes red three times and then white four times.
Cause Solution
Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the voltage
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.
66 Chapter 6 Troubleshooting without diagnostics
Solving hard drive problems
Hard drive error occurs.
Cause Solution
Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and right-click on
a drive. Select Properties, and then select the Tools tab.
Under Error-checking click Check Now.
In Windows 8.1, on the Start screen type e, and then select
File Explorer from the list of applications. In the left
column, expand Computer, right-click on a drive, select
Properties, and then select the Tools tab. Under Error
checking click Check.
In Windows 10, type file in the taskbar search box, and
then select File Explorer from the list of applications. In the
left column, expand This PC, right-click on a drive, select
Properties, and then select the Tools tab. Under Error
checking click Check.
2. Use a utility to locate and block usage of bad sectors. If
necessary, reformat the hard disk.
Disk transaction problem.
Cause Solution
Either the directory structure is bad or there is a problem with a
le.
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 8.1, on the Start screen type e, and then click File
Explorer from the list of applications. In the left column, expand
Computer, right-click on a drive, select Properties, and then
select the Tools tab. Under Error checking click Check.
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.
Drive not found (identied).
Cause Solution
Cable could be loose. Check cable connections.
The system may not have automatically recognized a newly
installed device.
See reconguration directions in the Solving Hardware
Installation Problems on page 80 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.
Solving hard drive problems 67
Drive not found (identied).
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
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 >
Boot Options.
Nonsystem disk/NTLDR missing message.
Cause Solution
The system is trying to start from the hard drive but the hard
drive may have been damaged.
▲Perform Drive Protection System (DPS) testing in system
ROM.
System les missing or not properly installed. 1. Insert bootable media and restart the computer.
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.
Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive entry in
the Advanced > Boot Options list.
Bootable hard drive is not attached as rst in a multi-hard drive
conguration.
If attempting to boot from a hard drive, ensure it is attached to
the system board dark blue SATA connector.
Bootable hard drive is not listed rst in the Boot Order. Run the Computer Setup utility and select Advanced > Boot
Options and ensure the bootable hard drive is listed immediately
under the Hard Drive entry.
Computer will not boot from hard drive.
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
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 92 to determine possible
causes for the blinking red and beep codes.
See the Worldwide Limited Warranty for terms and conditions.
68 Chapter 6 Troubleshooting without diagnostics
Computer seems to be locked up.
Cause Solution
Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not
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 media card reader problems
Media card will not work in a digital camera after formatting it in Windows.
Cause Solution
By default, Windows will format any media card with a capacity
greater than 32MB with the FAT32 format. Some digital cameras
use the FAT (FAT16 & FAT12) format and can not operate with a
FAT32 formatted card.
Either format the media card in the digital camera or select FAT
le system to format the media card in a computer with Windows.
A write-protected or locked error occurs when attempting to write to the media card.
Cause Solution
Media card is locked. Locking the media card is a safety feature
that prevents writing to and deleting from an SD/Memory
Stick/PRO card.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a Memory
Stick/PRO card, make sure that the lock tab located on the bottom
of the Memory Stick/PRO card is not in the locked position.
Can not write to the media card.
Cause Solution
The media card is a read-only memory (ROM) card. Check the manufacturer’s documentation included with your card
to see if it writable. Refer to the previous section for a list of
compatible cards.
Media card is locked. Locking the media card is a safety feature
that prevents writing to and deleting from an SD/Memory
Stick/PRO card.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a Memory
Stick/PRO card, make sure that the lock tab located on the bottom
of the Memory Stick/PRO card is not in the locked position.
Unable to access data on the media card after inserting it into a slot.
Cause Solution
The media card is not inserted properly, is inserted in the wrong
slot, or is not supported.
Ensure that the card is inserted properly with the gold contact on
the correct side. The green LED will light if inserted properly.
Solving media card reader problems 69
Do not know how to remove a media card correctly.
Cause Solution
The computer’s software is used to safely eject the card. In Windows 7, click Start, select Computer, right-click on the
corresponding drive icon, and then select Eject. Pull the card out
of the slot.
In Windows 8.1, on the Start screen, type e, and then click File
Explorer from the list of applications. Expand Computer, right-
click on the corresponding drive icon, and then select Eject. Pull
the card out of the slot.
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 the corresponding drive
icon, and then select Eject. Pull the card out of the slot.
NOTE: Never remove the card when the green LED is ashing
After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the
computer.
Cause Solution
The operating system needs time to recognize the device if the
reader was just installed into the computer and you are turning
the PC on for the rst time.
Wait a few seconds so that the operating system can recognize
the reader and the available ports, and then recognize the media
inserted in the reader.
After inserting a media card in the reader, the computer attempts to boot from the media card.
Cause Solution
The inserted media card has boot capability. 1. If you do not want to boot from the media card, remove it
during boot or do not select the option to boot from the
inserted media card during the boot process.
2. During POST (Power On Self-Test), press F9 to modify the
boot menu.
3. Change the boot sequence in F10 Computer Setup.
Solving display problems
If you encounter display problems, see the documentation that came with the monitor and to the common
causes and solutions listed in the following table.
Blank screen (no video).
Cause Solution
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Bad monitor. Try a dierent monitor.
The cable connections are not correct. Check the cable connection from the monitor to the computer and
to the electrical outlet.
70 Chapter 6 Troubleshooting without diagnostics
Blank screen (no video).
Cause Solution
You may have a screen blanking utility installed or energy saver
features are enabled.
Press any key or click the mouse button and type your password
(if set).
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
Reash the system ROM with the latest BIOS image.
You are using a xed-sync monitor and it will not sync at the
resolution chosen.
Be sure that the monitor can accept the same horizontal scan rate
as the resolution chosen.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the
motherboard or an add-in card. Try moving the monitor
connection to a dierent connector on the back of the computer
Monitor settings in the computer are not compatible with the
monitor.
1. In Control Panel, select Category from the View by list, then
under Appearance and Personalization, select Adjust
screen resolution.
To access Control Panel in Windows 7, click Start, and then
select Control Panel.
To access Control Panel in Windows 8.1, from the Start
screen, type c, and then select Control Panel from the list of
applications.
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.
2. Expand the Resolution box, and then use the sliding control
to reset the resolution.
Monitor is congured to use an input that is not active. Use the monitor's on-screen menu controls to select the input
that is being driven by the system. Refer to the monitor's user
documentation for more information on the on-screen controls
and settings.
Blank screen and the 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.)
Cause Solution
Pre-video memory error. 1. Reseat DIMMs. Power on the system.
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 display problems 71
Blank screen and the power LED ashes Red six times, once every second, followed by a two second pause, and the computer
beeps six times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card (if applicable). Power on the
system.
2. Replace the graphics card (if applicable).
3. Replace the system board.
For systems with integrated graphics, replace the system board.
Blank screen and the power LED ashes Red seven times, once every second, followed by a two second pause, and the computer
beeps seven times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
System board failure (ROM detected failure prior to video). Replace the system board.
Monitor does not function properly when used with energy saver features.
Cause Solution
Monitor without energy saver capabilities is being used with
energy saver features enabled.
Disable monitor energy saver feature.
Dim characters.
Cause Solution
The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.
Cables are not properly connected. Check that the graphics cable is securely connected to the
graphics card (if applicable) or video connector and the monitor.
Blurry video or requested resolution cannot be set.
Cause Solution
If the graphics controller was upgraded, the correct graphics
drivers may not be loaded.
Install the video drivers included in the upgrade kit.
Monitor is not capable of displaying requested resolution. Change requested resolution.
Graphics card is bad. Replace the graphics card.
72 Chapter 6 Troubleshooting without diagnostics
The picture is broken up, rolls, jitters, or ashes.
Cause Solution
The monitor connections may be incomplete or the monitor may
be incorrectly adjusted.
1. Be sure the monitor cable is securely connected to the
computer.
2. In a two-monitor system or if another monitor is in close
proximity, be sure the monitors are not interfering with each
other’s electromagnetic eld by moving them apart.
3. Fluorescent lights or fans may be too close to the monitor.
Monitor needs to be degaussed. Degauss the monitor. Refer to the documentation that came with
the monitor for instructions.
Image is not centered.
Cause Solution
Position may need adjustment. Press the monitor's Menu button to access the OSD menu. Select
ImageControl/ Horizontal Position or Vertical Position to adjust
the horizontal or vertical position of the image.
“No Connection, Check Signal Cable” displays on screen.
Cause Solution
Monitor video cable is disconnected. Connect the video cable between the monitor and computer.
CAUTION: Ensure that the computer power is o while
connecting the video cable.
“Out of Range” displays on screen.
Cause Solution
Video resolution and refresh rate are set higher than what the
monitor supports.
Restart the computer and enter Safe Mode. Change the settings to
a supported setting then restart the computer so that the new
settings take eect.
To enter Safe Mode in Windows 7:
1. Restart the computer.
2. Press and hold the F8 key as your computer restarts, before
the Windows logo appears. If the Windows logo appears,
you must restart the computer and try again.
3. On the Advanced Boot Options screen, use the arrow keys to
highlight the safe mode option you want, and then press
Enter.
4. Log on to your computer with a user account that has
administrator rights.
When your computer is in safe mode, Safe Mode displays in
the corners of your monitor. To exit safe mode, restart your
computer and let Windows start normally.
To enter Safe Mode in Windows 8.1:
Solving display problems 73
“Out of Range” displays on screen.
Cause Solution
1. Press the Windows logo + l to open the Settings charm.
2. Select Change PC Settings, select General, and then under
Advanced startup, click Restart now.
3. Select Troubleshoot, select Advanced options, select
Startup Settings, and then click Restart.
4. Use the function keys or number keys to select the safe
mode option you want.
When your computer is in safe mode, Safe Mode displays in
the corners of your monitor. To exit safe mode, restart your
computer and let Windows start normally.
To enter Safe Mode in Windows 10:
1. Log into the computer using an Administrator account.
2. Type msconfig in the taskbar search box, and then select
mscong from the list of applications.
3. Click the Boot tab, select Safe boot and then click OK.
High pitched noise coming from inside a at panel monitor.
Cause Solution
Brightness and/or contrast settings are too high. Lower brightness and/or contrast settings.
Fuzzy focus; streaking, ghosting, or shadowing eects; horizontal scrolling lines; faint vertical bars; or unable to center the
picture on the screen (at panel monitors using an analog VGA input connection only).
Cause Solution
Flat panel monitor’s internal digital conversion circuits may be
unable to correctly interpret the output synchronization of the
graphics card.
1. Select the monitor’s Auto-Adjustment option in the
monitor’s on-screen display menu.
2. Manually synchronize the Clock and Clock Phase on-screen
display functions. To download a SoftPaq that will assist you
with the synchronization, go to the following Web site,
select the appropriate monitor, and download either
SP32347 or SP32202: http://www.hp.com/support
Graphics card is not seated properly or is bad (some models). 1. Reseat the graphics card.
2. Replace the graphics card.
Certain typed symbols do not appear correct.
Cause Solution
The font you are using does not support that particular symbol. Use the Character Map to locate and select the appropriate
symbol. You can copy the symbol from the Character Map into a
document.
74 Chapter 6 Troubleshooting without diagnostics
Certain typed symbols do not appear correct.
Cause Solution
In Windows 7, click Start, select All Programs, select Accessories,
select System Tools, and then select Character Map.
In Windows 8.1, on the Start screen, type ch, and then select
Character Map from the list of applications.
In Windows 10, type ch in the taskbar search box, and then select
Character Map from the list of applications.
Solving audio problems
If the computer has audio features and you encounter audio problems, see the common causes and solutions
listed in the following table.
Sound cuts in and out.
Cause Solution
Processor resources are being used by other open applications. Shut down all open processor-intensive applications.
Sound does not come out of the speaker or headphones.
Cause Solution
Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make sure
that Mute is not selected and use the volume slider to adjust the
volume.
NOTE: In Windows 8.1, the taskbar is available at the bottom of
the Desktop screen.
Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Advanced > Built-in Device
Options.
The external speakers are not turned on. Turn on the external speakers.
The audio device may be connected to the wrong jack. Ensure that the device is connected to the correct jack on the
computer. The rear audio jack output is the green receptacle. The
speakers should be plugged into the line-out jack and the
headphones should be plugged into the headphone jack.
External speakers plugged into the wrong audio jack on a recently
installed sound card.
See the sound card documentation for proper speaker connection.
The rear audio jack output is the green receptacle.
Headphones or devices connected to the line-out connector mute
the internal speaker.
Turn on and use headphones or external speakers, if connected,
or disconnect headphones or external speakers.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Internal speaker is disabled in Computer Setup. Enable the internal speaker in Computer Setup. Select Advanced >
Built-in Device Options.
Solving audio problems 75
Sound does not come out of the speaker or headphones.
Cause Solution
The application is set to use a dierent audio device than
speakers.
Some graphics cards support audio over the DisplayPort
connection (if applicable), so multiple audio devices may be listed
in Device Manager. Make sure the correct device is being used.
To access Device Manager in Windows 7, click Start, select Control
Panel, and then select Device Manager.
To access Device Manager in Windows 8.1, from the Start screen,
type c, select Control Panel from the list of applications, 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.
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.
Set the operating system to use the correct audio device.
Sound from headphones is not clear or mued.
Cause Solution
Headphones are plugged into the rear audio output connector.
The rear audio output connector is for powered audio devices and
is not designed for headphone use.
Plug the headphones into the headphone connector on the front
of the computer.
Computer appears to be locked up while recording audio.
Cause Solution
The hard disk may be full. Before recording, make sure there is enough free space on the
hard disk. You can also try recording the audio le in a
compressed format.
Line-in jack is not functioning properly.
Cause Solution
Jack has been recongured in the audio driver or application
software.
In the audio driver or application software, recongure the jack or
set the jack to its default value.
There is no sound or sound volume is too low.
Cause Solution
The application is set to use a dierent audio device than
speakers.
Some graphics cards support audio over the DisplayPort
connection (if applicable), so multiple audio devices may be listed
in Device Manager. Make sure the correct device is being used.
To access Device Manager in Windows 7, click Start, select Control
Panel, and then select Device Manager.
76 Chapter 6 Troubleshooting without diagnostics
There is no sound or sound volume is too low.
Cause Solution
To access Device Manager in Windows 8.1, from the Start screen,
type c, select Control Panel from the list of applications, 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.
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.
Set the operating system to use the correct audio device.
Solving printer problems
If you encounter printer problems, see the documentation that came with the printer and to the common
causes and solutions listed in the following table.
Printer will not print.
Cause Solution
Printer is not turned on and online. Turn the printer on and make sure it is online.
The correct printer drivers for the application are not installed. 1. Install the correct printer driver for the application.
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.
Make the proper network connections to the printer.
Printer may have failed. Run printer self-test.
Printer will not turn on.
Cause Solution
The cables may not be connected properly. Reconnect all cables and check the power cord and electrical
outlet.
Printer prints garbled information.
Cause Solution
The correct printer driver for the application is not installed. Install the correct printer driver for the application.
Solving printer problems 77
Printer prints garbled information.
Cause Solution
The cables may not be connected properly. Reconnect all cables.
Printer memory may be overloaded. Reset the printer by turning it o for one minute, then turn it back
on.
Printer will not print.
Cause Solution
The printer may be out of paper. Check the paper tray and rell it if it is empty.
Solving keyboard and mouse problems
If you encounter keyboard or mouse problems, see the documentation that came with the equipment and to
the common causes and solutions listed in the following table.
A wireless keyboard/mouse is not working correctly. Symptoms include lagging mouse movement, jumpy mouse/keyboard, or no
function of mouse/keyboard and external drive.
Cause Solution
If your computer is equipped with USB 3.0 ports, connected USB
3.0 devices can interfere with the wireless keyboard USB receiver.
Connect the wireless keyboard USB receiver to a USB 2.0 port that
is separated from ports with USB 3.0 devices. If you still
experience interference, you may have to place the connectors
farther apart using an external USB hub.
Keyboard commands and typing are not recognized by the computer.
Cause Solution
Keyboard connector is not properly connected. Shut down the computer, reconnect the keyboard to the back of
the computer, and then restart the computer.
Program in use has stopped responding to commands. Shut down your computer using the mouse and then restart the
computer.
Keyboard needs repairs. See the Worldwide Limited Warranty for terms and conditions.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep date, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Mouse does not respond to movement or is too slow.
Cause Solution
Mouse connector is not properly plugged into the back of the
computer.
Shut down the computer using the keyboard.
Windows 7:
78 Chapter 6 Troubleshooting without diagnostics
Mouse does not respond to movement or is too slow.
Cause Solution
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 8.1:
1. Press the Windows logo + l to open the Settings charm.
2. Use the arrow keys to select Power, 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.
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.
Program in use has stopped responding to commands. Shut down the computer using the keyboard then restart the
computer.
Mouse may need cleaning. Remove the roller ball cover on the mouse and clean the internal
components.
Mouse may need repair. See the Worldwide Limited Warranty for terms and conditions.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Mouse will only move vertically, horizontally, or movement is jerky.
Cause Solution
Mouse roller ball or the rotating encoder shafts that make contact
with the ball are dirty.
Remove roller ball cover from the bottom of the mouse and clean
the internal components with a mouse cleaning kit available from
most computer stores.
Solving keyboard and mouse problems 79
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.
Table 6-1 Solving Hardware Installation Problems
A new device is not recognized as part of the system.
Cause Solution
Device is not seated or connected properly. Ensure that the device is properly and securely connected and
that pins in the connector are not bent down.
Cable(s) of new external device are loose or power cables are
unplugged.
Ensure that all cables are properly and securely connected and
that pins in the cable or connector are not bent down.
Power switch of new external device is not turned on. Turn o the computer, turn on the external device, then turn on
the computer to integrate the device with the computer system.
When the system advised you of changes to the conguration,
you did not accept them.
Reboot the computer and follow the instructions for accepting the
changes.
A plug and play board may not automatically congure when
added if the default conguration conicts with other devices.
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 8.1, from the Start screen,
type c, select Control Panel from the list of applications, 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.
USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that Device available
is selected for appropriate USB ports under Advanced > Port
Options.
Computer will not start.
Cause Solution
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.
80 Chapter 6 Troubleshooting without diagnostics
Computer will not start.
Cause Solution
NOTE: DIMM1 or XMM1 must always be installed. DIMM1
must be installed before DIMM2, and DIMM3 must be
installed before DIMM4.
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.
Power LED ashes Red three times and then white two times.
Cause Solution
Memory is installed incorrectly or is bad. CAUTION: To avoid damage to the DIMMs or the system board,
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 DIMM2, and DIMM3 must be
installed before DIMM4
3. Replace third-party memory with HP memory.
4. Replace the system board.
Solving Network Problems
Some common causes and solutions for network problems are listed in the following table. These guidelines
do not discuss the process of debugging the network cabling.
Table 6-2 Solving Network Problems
Network driver does not detect network controller.
Cause Solution
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 8.1, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Solving Network Problems 81
Table 6-2 Solving Network Problems (continued)
Network driver does not detect network controller.
Cause Solution
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.
Cause Solution
No active network is detected. Check cabling and network equipment for proper connection.
Network controller is not set up properly. Check for the device status within Windows, such as Device
Manager for driver load and the Network Connections applet
within Windows for link status.
To access Device Manager in Windows 7, click Start, select Control
Panel, and then select Device Manager.
To access Device Manager in Windows 8.1, from the Start screen,
type c, select Control Panel from the list of applications, 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.
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 8.1, from the Start
screen, type c, select Control Panel from the list of
applications, 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.
82 Chapter 6 Troubleshooting without diagnostics
Diagnostics reports a failure.
Cause Solution
The cable is not securely connected. Ensure that the cable is securely attached to the network
connector and that the other end of the cable is securely attached
to the correct device.
The cable is attached to the incorrect connector. Ensure that the cable is attached to the correct connector.
There is a problem with the cable or a device at the other end of
the cable.
Ensure that the cable and device at the other end are operating
correctly.
The network controller is defective. Contact an authorized service provider.
Diagnostics passes, but the computer does not communicate with the network.
Cause Solution
Network drivers are not loaded, or driver parameters do not
match current conguration.
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.
The network controller is not congured for this computer. Select the Network and Sharing Center icon in the Control Panel
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 8.1, from the Start screen,
type c, 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.
Network controller stopped working when an expansion board was added to the computer.
Cause Solution
The network controller requires drivers. Verify that the drivers were not accidentally deleted when the
drivers for a new expansion board were installed.
Network controller stops working without apparent cause.
Cause Solution
The les containing the network drivers are corrupted. Reinstall the network drivers using the Recovery Disc Set in
Windows 7 or Windows recovery tools in Windows 8.1.
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.
Solving Network Problems 83
New network card will not boot.
Cause Solution
New network card may be defective or may not meet industry-
standard specications.
Install a working, industry-standard NIC, or change the boot
sequence to boot from another source.
Cannot connect to network server when attempting Remote System Installation.
Cause Solution
The network controller is not congured properly. Verify Network Connectivity, that a DHCP Server is present, and
that the Remote System Installation Server contains the NIC
drivers for your NIC.
System setup utility reports unprogrammed EEPROM.
Cause Solution
Unprogrammed EEPROM. Contact an authorized service provider.
Solving memory problems
If you encounter memory problems, some common causes and solutions are listed in the following table.
CAUTION: Power may still be supplied to the DIMMs when the computer is turned o (depending on the
Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the
computer power cord before attempting to reseat, install, or remove a memory module.
For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory.
Otherwise, the computer will not boot the operating system.
NOTE: The memory count will be 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.
System will not boot or does not function properly after installing additional memory modules.
Cause Solution
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.
Replace module with the correct industry-standard device for the
computer. On some models, ECC and non-ECC memory modules
cannot be mixed.
84 Chapter 6 Troubleshooting without diagnostics
Out of memory error.
Cause Solution
You have run out of memory to run the application. Check the application documentation to determine the memory
requirements.
Memory count during POST is wrong.
Cause Solution
The memory modules may not be installed correctly. Check that the memory modules have been installed correctly and
that proper modules are used.
Integrated graphics may use system memory. No action required.
Insucient memory error during operation.
Cause Solution
Too many Terminate and Stay Resident programs (TSRs) are
installed.
Delete any TSRs that you do not need.
You have run out of memory for the application. Check the memory requirements for the application or add more
memory to the computer.
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.)
Cause Solution
Memory is installed incorrectly or is bad. 1. Reseat DIMMs. Power on the system.
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 CD-ROM and DVD problems
If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table
or to the documentation that came with the optional device.
System will not boot from CD-ROM or DVD drive.
Cause Solution
The device is attached to a SATA port that has been hidden in the
Computer Setup utility.
Run the Computer Setup utility and ensure Device Available is
selected for the device's SATA port in Advanced > Port Options.
Removable Media Boot is disabled in the Computer Setup utility. Run the Computer Setup utility and enable booting to removable
media in Advanced > Boot Options.
Network Boot is enabled in Computer Setup. Run the Computer Setup utility and disable Network Boot in
Advanced > Boot Options.
Solving CD-ROM and DVD problems 85
System will not boot from CD-ROM or DVD drive.
Cause Solution
Non-bootable CD in drive. Try a bootable CD in the drive.
Boot order not correct. Run the Computer Setup utility and change boot sequence in
Advanced > Boot Options.
Drive not found (identied).
Cause Solution
Cable could be loose. Check cable connections.
The system may not have automatically recognized a newly
installed device.
See reconguration directions in the Solving Hardware
Installation Problems on page 80 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 > Power-On
Options.
The device is attached to a SATA port that has been hidden in
Computer Setup.
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 >
Power-On Options.
CD-ROM or DVD devices are not detected or driver is not loaded.
Cause Solution
Drive is not connected properly or not properly congured. See the documentation that came with the optional device.
Movie will not play in the DVD drive.
Cause Solution
Movie may be regionalized for a dierent country. See the documentation that came with the DVD drive.
Decoder software is not installed. Install decoder software.
Damaged media. Replace media.
Movie rating locked out by parental lock. Use DVD software to remove parental lock.
Media installed upside down. Reinstall media.
86 Chapter 6 Troubleshooting without diagnostics
Cannot eject compact disc (tray-load unit).
Cause Solution
Disc not properly seated in the drive. Turn o the computer and insert a thin metal rod into the
emergency eject hole and push rmly. Slowly pull the tray out
from the drive until the tray is fully extended, then remove
the disc.
CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start.
Cause Solution
Media is corrupt. Try dierent media to conrm whether media is valid.
Media has been inserted upside down. Re-insert the media with the label facing up.
The DVD-ROM drive takes longer to start because it has to
determine the type of media played, such as audio or video.
Wait at least 30 seconds to let the DVD-ROM drive determine the
type of media being played. If the disc still does not start, read the
other solutions listed for this topic.
CD or DVD disc is dirty. Clean CD or DVD with a CD cleaning kit, available from most
computer stores.
Windows does not detect the CD-ROM or DVD-ROM drive. 1. Use Device Manager to remove or uninstall the device.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8.1, from the Start
screen, type c, select Control Panel from the list of
applications, 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.
2. Restart the computer and let Windows detect the CD or DVD
driver.
Recording or copying CDs is dicult or impossible.
Cause Solution
Wrong or poor quality media type. 1. Try using a slower speed when recording.
2. Verify that you are using the correct media for the drive.
3. Try a dierent brand of media. Quality varies widely
between manufacturers.
Solving CD-ROM and DVD problems 87
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.
Cause Solution
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).
Cause Solution
The device is attached to a USB port that has been hidden in
Computer Setup.
Run the Computer Setup utility and enable USB ports in Advanced
> Port Options.
The device was not properly seated before power-up. Ensure the device is fully inserted into the USB port before
applying power to the system
System will not boot from USB ash drive.
Cause Solution
Boot order is not correct. Run the Computer Setup utility and change boot sequence in
Advanced > Boot Options.
Removable Media Boot is disabled in the Computer Setup utility. Run the Computer Setup utility and enable booting to removable
media in Advanced > Boot Options. Ensure USB is enabled in
Storage > Boot Order.
The computer boots to DOS after making a bootable ash drive.
Cause Solution
Flash drive is bootable. Install the ash drive only after the operating system boots.
Flash drive is defective. Try a dierent ash drive.
88 Chapter 6 Troubleshooting without diagnostics
Solving front panel component problems
If you encounter problems with devices connected to the front panel, refer to the common causes and
solutions listed in the following table.
A USB device, headphone, or microphone is not recognized by the computer.
Cause Solution
Device is not properly connected. 1. Turn o the computer.
2. Reconnect the device to the front of the computer and
restart the computer.
The device does not have power. If the USB device requires AC power, be sure one end is connected
to the device and one end is connected to a live outlet.
The correct device driver is not installed. 1. Install the correct driver for the device.
2. You might need to reboot the computer.
The cable from the device to the computer does not work. 1. If possible, replace the cable.
2. Restart the computer.
The device is not working. 1. Replace the device.
2. Restart the computer.
USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that the USB ports are
set to Enabled in Security > USB Security.
Solving Internet access problems
If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the common
causes and solutions listed in the following table.
Unable to connect to the Internet.
Cause Solution
Internet Service Provider (ISP) account is not set up properly. Verify Internet settings or contact your ISP for assistance.
Web browser is not set up properly. Verify that the Web browser is installed and set up to work with
your ISP.
Cable/DSL modem is not plugged in. Plug in cable/DSL modem. You should see a “power” LED light on
the front of the cable/DSL modem.
Cable/DSL service is not available or has been interrupted due to
bad weather.
Try connecting to the Internet at a later time or contact your ISP.
(If the cable/DSL service is connected, the “cable” LED light on the
front of the cable/DSL modem will be on.)
The CAT5 UTP cable is disconnected. Connect the CAT5 UTP cable between the cable modem and the
computers’s RJ-45 connector. (If the connection is good, the “PC”
LED light on the front of the cable/DSL modem will be on.)
IP address is not congured properly. Contact your ISP for the correct IP address.
Cookies are corrupted. (A “cookie” is a small piece of information
that a Web server can store temporarily with the Web browser.
This is useful for having the browser remember some specic
information that the Web server can later retrieve.)
Windows 7:
1. Select Start > Control Panel.
2. Click Internet Options.
Solving front panel component problems 89
Unable to connect to the Internet.
Cause Solution
3. In the Browsing history section on the General tab, click the
Delete button.
4. Select the Cookies check box and click the Delete button.
Windows 8.1:
1. From the Start screen, type c, and then select Control Panel
from the list of applications.
2. Click Internet Options.
3. In the Browsing history section on the General tab, click the
Delete button.
4. Select the Cookies check box and click the Delete button.
Windows 10:
1. Type control panel in the taskbar search box, and then
select Control Panel from the list of applications.
2. Click Internet Options.
3. In the Browsing history section, click the Delete button.
4. Select the Cookies and website data check box and click the
Delete button.
Cannot automatically launch Internet programs.
Cause Solution
You must log on to your ISP before some programs will start. Log on to your ISP and launch the desired program.
90 Chapter 6 Troubleshooting without diagnostics
Solving software problems
Most software problems occur as a result of the following:
●The application was not installed or congured correctly.
●There is insucient memory available to run the application.
●There is a conict between applications.
●Be sure that all the needed device drivers have been installed.
●If you have installed an operating system other than the factory-installed operating system, check to be
sure it is supported on the system.
If you encounter software problems, see the applicable solutions listed in the following table.
Computer will not continue and the HP logo does not display.
Cause Solution
ROM issue - POST error has occurred. Observe the beeps and LED lights on the front of the computer.
See POST error messages and diagnostic front panel LEDs and
audible codes on page 92 to determine possible causes.
See the Worldwide Limited Warranty for terms and conditions.
“Illegal Operation has Occurred” error message is displayed.
Cause Solution
Software being used is not Microsoft-certied for your version of
Windows.
Verify that the software is certied by Microsoft for your version
of Windows (see program packaging for this information).
Conguration les are corrupt. If possible, save all data, close all programs, and restart the
computer.
Solving software problems 91
7 POST error messages and diagnostic front
panel LEDs and audible codes
This appendix lists the error codes, error messages, and the various indicator light and audible sequences
that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the
problem, and steps you can take to resolve the error condition.
POST Message Disabled suppresses most system messages during POST, such as memory count and non-
error text messages. If a POST error occurs, the screen will display the error message. To manually switch to
the POST Messages Enabled mode during POST, press any key (except F10, F11, or F12). The default mode is
POST Message Disabled.
The speed at which the computer loads the operating system and the extent to which it is tested are
determined by the POST mode selection.
Quick Boot is a fast startup process that does not run all of the system level tests, such as the memory test.
Full Boot runs all of the ROM-based system tests and takes longer to complete.
Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish the
schedule, recongure the computer to the Full Boot Every x Days mode, using Computer Setup.
NOTE: For more information on Computer Setup, see Computer Setup (F10) Utility on page 48.
POST numeric codes and text messages
This section covers those POST errors that have numeric codes associated with them. The section also
includes some text messages that may be encountered during POST.
NOTE: The computer will beep once after a POST text message is displayed on the screen.
Control panel message Description Recommended action
002-Option ROM Checksum Error System ROM or expansion board option ROM
checksum.
1. Verify the correct ROM.
2. Flash the ROM if needed.
3. If an expansion board was recently added,
remove it to see if the problem remains.
4. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
5. If the message disappears, there may be a
problem with the expansion card.
6. Replace the system board.
003-System Board Failure DMA or timers. 1. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
2. Remove expansion boards.
3. Replace the system board.
005-Real-Time Clock Power Loss Invalid time or date in conguration memory. Reset the date and time under Control Panel
(Computer Setup can also be used). If the
92 Chapter 7 POST error messages and diagnostic front panel LEDs and audible codes
Control panel message Description Recommended action
RTC (real-time clock) battery may need to
be replaced.
problem persists, replace the RTC battery. See
the Removal and Replacement section for
instructions on installing a new battery.
008–Microcode Patch Error Processor is not supported by the BIOS. 1. Upgrade BIOS to proper version.
2. Change the processor.
009–PMM Allocation Error during MEBx
Download
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory conguration was recently
changed, unplug the computer, restore
the original memory conguration, and
reboot the computer.
4. If the error persists, replace the system
board.
00A-Product Information Not Valid The product information programmed into the
system board is missing or invalid.
Use Computer Setup to update this information.
00B-MEBx Module did not checksum correctly Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory conguration was recently
changed, unplug the power cord, restore
the original memory conguration, and
reboot the computer.
4. If the error persists, replace the system
board.
00C-PMM Deallocation Error during MEBx
Cleanup
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory conguration was recently
changed, unplug the power cord, restore
the original memory conguration, and
reboot the computer.
4. If the error persists, replace the system
board.
00D-Setup Error during MEBx Execution MEBx selection or exit resulted in a setup
failure.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory conguration was recently
changed, unplug the power cord, restore
the original memory conguration, and
reboot the computer.
4. If the error persists, replace the system
board.
POST numeric codes and text messages 93
Control panel message Description Recommended action
00E-Inventory Error during MEBx Execution BIOS information passed to the MEBx resulted
in a failure.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version.
3. If the error still persists, replace the
system board.
00F-Interface Error during MEBx Execution MEBx operation experienced a hardware error
during communication with the ME.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version.
3. If the error still persists, replace the
system board.
100-Front Audio Not Connected Front audio cable has been detached or
unseated from system board.
Reconnect or replace front audio cable.
2E1-MemorySize Error Memory amount has changed since the last
boot (memory added or removed).
The system memory size is dierent from the
last startup. The most common reason is the
removal of memory from the system board.
Press the F1 key to save the memory changes.
If this message persists, verify that the
memory modules are installed correctly.
2E2-Memory Error Memory module conguration failed during
boot up.
1. Ensure memory modules are correctly
installed.
2. Verify proper memory module type.
3. Remove and replace the identied faulty
memory module(s).
4. If the error persists after replacing
memory modules, replace the system
board.
2E3-Incompatible Memory Module in Memory
Socket(s) X, X, ...
A memory module in memory socket identied
in the error message is missing critical SPD
information, or is incompatible with the chipset.
1. Verify proper memory module type.
2. Try another memory socket.
3. Replace with a supported module.
2E4-DIMM Conguration Warning The current memory conguration is not
optimized.
Rearrange the DIMMs so that each channel has
the same amount of memory.
2E5-ECC Memory Module Detected on
Unsupported Platform
Recently added memory module(s) support ECC
memory error correction.
1. If additional memory was recently added,
remove it to see if the problem remains.
2. Check product documentation for
memory support information.
2E6–Memory Not Congured Correctly for
Proper MEBx Execution
DIMM1 is not installed. Make sure there is a memory module in the
DIMM1 socket and that it is properly seated.
300–Conguration Change Warning The storage device conguration will be
updated as shown.
Not applicable
301-Hard Disk 1: SMART Hard Drive Detects
Imminent Failure
Hard drive is about to fail. (Some hard drives
have a hard drive rmware patch that will x an
erroneous error message.)
1. Determine if hard drive is giving correct
error message. Run the Drive Protection
System test under using F2 Diagnostics
when booting the computer.
2. Apply hard drive rmware patch
if applicable. (Available at
http://www.hp.com/support.)
94 Chapter 7 POST error messages and diagnostic front panel LEDs and audible codes
Control panel message Description Recommended action
3. Back up contents and replace hard drive.
302-Hard Disk 2: SMART Hard Drive Detects
Imminent Failure
Hard drive is about to fail. (Some hard drives
have a hard drive rmware patch that will x an
erroneous error message.)
1. Determine if hard drive is giving correct
error message. Run the Drive Protection
System test under using F2 Diagnostics
when booting the computer.
2. Apply hard drive rmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard drive.
309 – 30C: Hard Disk 3–6: SMART Hard Drive
Detects Imminent Failure
Hard drive is about to fail. (Some hard drives
have a hard drive rmware patch that will x an
erroneous error message.)
1. Determine if hard drive is giving correct
error message. Run the Drive Protection
System test under using F2 Diagnostics
when booting the computer.
2. Apply hard drive rmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard drive.
3F0–Boot Device Not Found Boot device not found. Insert boot device or load operating system.
3F1–Hard Disk 1 Error Hard disk 1 error. 1. Check and/or replace cables.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
3. Replace the hard disk drive.
3F2–Hard Disk 2 Error Hard disk 2 error. 1. Check and/or replace cables.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
3. Replace the hard disk drive.
400-Serial Port A Address Conict Detected Both external and internal serial ports are
assigned to the same resources.
1. Remove any serial port expansion cards.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
3. Recongure card resources and/or run
Computer Setup or Windows utilities.
401-Serial Port B Address Conict Detected Both external and internal serial ports are
assigned to the same resources.
1. Remove any serial port expansion cards.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
3. Recongure card resources and/or run
Computer Setup or Windows utilities.
402-Serial Port C Address Conict Detected Both external and internal serial ports are
assigned to the same resources.
1. Remove any serial port expansion cards.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
3. Recongure card resources and/or run
Computer Setup or Windows utilities.
403-Serial Port D Address Conict Detected Both external and internal serial ports are
assigned to the same resources.
1. Remove any serial port expansion cards.
2. Clear CMOS. (See Password security and
resetting CMOS on page 99.)
POST numeric codes and text messages 95
Control panel message Description Recommended action
3. Recongure card resources and/or run
Computer Setup or Windows utilities.
419-Out of Memory Space for Option ROMs Recently added PCI expansion card contains an
option ROM too large to download during POST.
▲If a PCI expansion card was recently
added, remove it to see if the problem
remains.
41A-Front USB1/USB2 Not Connected Front USB cable has been detached or unseated
from system board.
Reconnect or replace front USB cable.
41B-Device in PCI Express Slot Failed To
Initialize
There is an incompatibility or problem with a
PCIe device and the system or PCIe link could
not be congured to a valid bus width or speed.
Try rebooting the system. If the error reoccurs,
the device may not work with this system
43A-USB Type-C I2C Not Connected Cable is required between I2C on card and USB-
C on the system board.
Install cable between I2C on card and USB-C on
the system board.
43B-More Than One USB type-C Cards Are
Installed
More than one USB type-C card is installed. Remove USB type-C card so only one is
installed.
500–BIOS Recovery A system BIOS recovery has occurred. Not applicable.
70x-Wireless Mode Not Supported The system has detected a wireless module
installed in the system that is not supported
and has been disabled.
Replace with a supported module.
800-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer
turned o.
2. Check connector for bent or missing pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
801-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer
turned o.
2. Ensure that none of the keys are
depressed.
3. Replace the keyboard.
4. Replace the system board.
900-CPU Fan Not Detected CPU fan is not connected or may have
malfunctioned.
1. Reseat CPU fan.
2. Reseat fan cable.
3. Replace CPU fan.
901-Chassis, Rear Chassis, or Front Chassis Fan
not Detected
Chassis, rear chassis, or front chassis fan is not
connected or may have malfunctioned.
1. Reseat chassis, rear chassis, or front
chassis fan.
2. Reseat fan cable.
3. Replace chassis, rear chassis, or front
chassis fan.
903-Computer Cover Has Been Removed Since
Last System Startup
N/A
904-SATA Cabling Error One or more SATA devices are improperly
attached. For optimal performance, the SATA 0
and SATA 1 ports should be used for hard drives
before other ports.
Ensure SATA connectors are used in ascending
order. For one device, use SATA 0. For two
devices, use SATA 0 and SATA 1. For three
devices, use SATA 0, SATA 1, and SATA 2.
96 Chapter 7 POST error messages and diagnostic front panel LEDs and audible codes
Control panel message Description Recommended action
90B-Fan Failure The system has detected that a cooling fan is
not operating correctly.
1. Reseat fan.
2. Reseat fan cable.
3. Replace fan.
90D-System Temperature Thermal shutdown occurred. The system BIOS
has detected your machine was previously shut
down to avoid overheating. Overheating may
occur if the cooling vents are blocked or the
operating temperature exceeds the system
specications. The machine should return to
normal operation once the situation is resolved.
Make sure system has proper airow.
90E-Power Supply Fan Not detected Power supply fan is not connected or may have
malfunctioned.
1. Reseat power supply fan.
2. Reseat fan cable.
3. Replace power supply fan.
910–Filter Warning Airow lter is dirty. Replace the airow lter.
Interpreting system validation diagnostic front panel LEDs and
audible codes
During the system validation phase that occurs at system startup, the BIOS validates the functionality of the
following subsystems and conditions:
●AC adapter
●System board power
●Processor failure
●BIOS corruption
●Memory failure
●Graphics failure
●System board failure
●BIOS authentication failure
If an error is detected, specic patterns of long and short blinks, accompanied by long and short beeps (where
applicable) are used to identify the error. These patterns will make up a two part code:
●Major – the category of the error
●Minor – the specic error within the category
NOTE: Single beep/blink codes are not used.
Number of long beeps/blinks Error category
1 Not used
2 BIOS
3 Hardware
Interpreting system validation diagnostic front panel LEDs and audible codes 97
4 Thermal
5 System board
Patterns of blink/beep codes are determined by using the following parameters:
●1 second pause occurs after the last major blink.
●2 second pause occurs after the last minor blink.
●Beep error code sequences occur for the rst 5 iterations of the pattern and then stop.
●Blink error code sequences continue until the computer is unplugged or the power button is pressed.
NOTE: Not all diagnostic lights and audible codes are available on all models.
The red LED blinks to represent the major error category (long blinks). The white LED blinks to represent the
minor error category (short blinks). For example, ‘3.5’ indicates 3 long red blinks and 5 short white blinks to
communicate the processor is not detected.
Category Major/minor code Description
BIOS 2.2 The main area (DXE) of BIOS has become corrupted and there is no recovery
binary image available.
2.3 The embedded controller policy requires the user to enter a key sequence.
2.4 The embedded controller is checking or recovering the boot block.
Hardware 3.2 The embedded controller has timed out waiting for BIOS to return from
memory initialization.
3.3 The embedded controller has timed out waiting for BIOS to return from
graphics initialization.
3.4 The system board displays a power failure (crowbar).*
3.5 The processor is not detected.*
3.6 The processor does not support an enabled feature.
Thermal 4.2 A processor over temperature condition has been detected.*
4.3 An ambient temperature over temperature condition has been detected.
4.4 An MXM over temperature condition has been detected.
System board 5.2 The embedded controller cannot nd valid rmware.
5.3 The embedded controller has timed out waiting for the BIOS.
5.4 The embedded controller has timed out waiting for BIOS to return from
system board initialization.
5.5 The embedded controller rebooted the system after a possible lockup
condition had been detected through the use of a System Health Timer,
Automated System Recovery Timer, or other mechanism.
* Indicates hardware triggered event; all other events are controlled by the BIOS.
98 Chapter 7 POST error messages and diagnostic front panel LEDs and audible codes
8 Password security and resetting CMOS
This computer supports security password features, which can be established through the Computer Setup
Utilities menu.
This computer supports two security password features that are established through the Computer Setup
Utilities menu: administrator password and power-on password. When you establish only an administrator
password, any user can access all the information on the computer except Computer Setup. When you
establish only a power-on password, the power-on password is required to access Computer Setup and any
other information on the computer. When you establish both passwords, only the administrator password will
give you access to Computer Setup.
When both passwords are set, the administrator password can also be used in place of the power-on
password as an override to log in to the computer. This is a useful feature for a network administrator.
If you forget one or both passwords, you can clear all passwords by powering o the system, opening the
cover, temporarily removing the PSWD jumper, and booting once. This will erase the administrator and
power-on passwords. You must restore the jumper to create new passwords.
CAUTION: Pushing the CMOS button with power removed will reset the BIOS settings to factory defaults. It
may be useful to back up the BIOS settings or save them as custom defaults before resetting them in case
they are needed later. Back up can be performed in Computer Setup or using the BiosCongUtility tool
available from www.hp.com. See Computer Setup (F10) Utility on page 48 for information on backing up the
BIOS settings.
Resetting the password jumper
CAUTION: Stringent security is a mode where there is no physical bypass of the password function. If
enabled, removing the password jumper will be ignored. To enable this mode, change the security setting
Clear Password Jumper in Password Policies to Ignore.
If you lose or forget the password when in stringent security mode, the system can only be reset by System
Management Command. This is a way for HP Service and Support to provide a secure method to access the
BIOS and command a password reset for a specically identied unit under the direction of the owner. This
scenario may not be covered under warranty.
To prevent needing a customer service event to restore access to the system, record your congured
administrator and power-on passwords in a safe place away from your computer.
To disable the power-on or administrator password features, or to clear the power-on or administrator
passwords, complete the following steps:
Resetting the password jumper 99
1. Shut down the operating system properly, then turn o the computer and any external devices, and
disconnect the power cord from the power outlet.
2. With the power cord disconnected, press the power button again to drain the system of any residual
power.
WARNING! 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.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to the
system board even when the unit is turned o. Failure to disconnect the power cord can result in
damage to the system.
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. See the Safety & Regulatory Information guide for more information.
3. Remove the access panel.
4. Locate the header and jumper.
NOTE: The password jumper is green so that it can be easily identied. For assistance locating the
password jumper and other system board components, see the system board components image at
System board callouts on page 46.
5. Remove the jumper from pins 1 and 2.
6. Place the jumper on either pin 1 or 2, but not both, so that it does not get lost.
7. Replace the access panel and reconnect the external equipment.
8. Plug in the computer and turn on power. Allow the operating system to start. This clears the current
passwords and disables the password features.
9. Shut down the computer, unplug the power, and disconnect the external equipment.
10. Remove the access panel.
11. Place the jumper on pins 1 and 2.
12. Replace the access panel.
13. Reconnect the external equipment and plug in the computer.
100 Chapter 8 Password security and resetting CMOS
Clearing and resetting the BIOS
The CMOS button resets BIOS settings to default, but does not clear the passwords or aect any of the other
Security settings. On Intel systems with advanced manageability features, the CMOS button will also partially
unprovision AMT.
1. Turn o the computer and any external devices, and disconnect the power cord from the power outlet.
2. Disconnect the keyboard, monitor, and any other external equipment connected to the computer.
WARNING! 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.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to the
system board even when the unit is turned o. Failure to disconnect the power cord can result in
damage to the system.
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. See the Safety & Regulatory Information guide for more information.
3. Remove the access panel.
CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important to back
up the computer CMOS settings before resetting them in case they are needed later. Back up is easily
done through Computer Setup. See Computer Setup (F10) Utility on page 48 for information on backing
up the CMOS settings.
4. Locate, press, and hold the CMOS button in for ve seconds.
NOTE: Make sure you have disconnected the AC power cord from the wall outlet. The CMOS button will
not clear CMOS if the power cord is connected.
NOTE: For assistance locating the CMOS button and other system board components, see the system
board components image at System board callouts on page 46.
5. Replace the access panel.
6. Reconnect the external devices.
7. Plug in the computer and turn on power.
NOTE: You will receive POST error messages after clearing CMOS and rebooting advising you that
conguration changes have occurred. Use Computer Setup to reset any special system setups along with
the date and time.
For instructions on Computer Setup, see Computer Setup (F10) Utility on page 48.
Clearing and resetting the BIOS 101
9 Using 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 is generated. This ID can then be provided to support to help determine how to correct the problem.
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 102.
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.
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 Hardward Diagnostics to 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, click the Dowload link, and then select Run.
Download any version of UEFI for a specic product
1. Go to http://www.hp.com/support, and then select your country. The HP Support page is displayed. .
2. Click Drivers & Downloads.
3. Use the categories listed to nd your product.
– or –
Click Find Now to let HP automatically detect your product.
102 Chapter 9 Using HP PC Hardware Diagnostics (UEFI)
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.
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device 103
10 System backup and recovery
Backing up, restoring, and recovering in Windows 8.1 or
Windows 8
Your computer includes tools provided by HP and Windows to help you safeguard your information
and retrieve it if you ever need to. These tools will help you return your computer to a proper working state or
even back to the original factory state, all with simple steps.
This section provides information about the following processes:
●Creating recovery media and backups
●Restoring and recovering your system
NOTE: This section describes an overview of backing up, restoring, and recovering options. For more details
about the tools provided, see Help and Support. From the Start screen, type help, and then select Help and
Support.
Creating recovery media and backups
Recovery after a system failure is only as good as your most recent backup.
1. After you successfully set up the computer, create recovery media. This step creates a backup of the
recovery partition on the computer. The backup can be used to reinstall the original operating system in
cases where the hard drive is corrupted or has been replaced.
You will use a USB ash drive to create a bootable recovery drive that can be used to troubleshoot a
computer that is unable to start. The USB ash drive can be used to reinstall the original operating
system and the programs that were installed at the factory.
NOTE: Any information on the USB ash drive will be erased before the recovery media is created.
●To create the Windows 8.1 recovery media, from the Start screen, type recovery drive, then
click on Create a recovery drive. Follow the on-screen instructions to continue.
●To create the Windows 8 recovery media, from the Start screen, type recovery drive, and
then click on Settings, then click on Create a recovery drive. Follow the on-screen instructions to
continue.
2. Use the Windows tools to create system restore points and create backups of personal information. For
more information and steps, see Help and Support. From the Start screen, type help, and then select
Help and Support.
Restoring and recovering using Windows tools
Windows oers several options for restoring from backup, refreshing the computer, and resetting the
computer to its original state. For more information and steps, see Help and Support. From the Start screen,
type help, and then select Help and Support.
104 Chapter 10 System backup and recovery
Using Reset when the system is not responding
NOTE: You may be prompted by User Account Control for your permission or password when you perform
certain tasks. To continue a task, select the appropriate option. For information about User Account Control,
see Help and Support. From the Start screen, type help, and then select Help and Support.
IMPORTANT: Reset does not provide backups of your information. Before using Reset, back up any personal
information you wish to retain.
If Windows recovery steps are not working and the system is not responding, use these steps to start Reset:
1. If possible, back up all personal les.
2. If possible, check for the presence of the HP Recovery partition:
●For Windows 8.1, from the Start screen, type pc, and then select This PC.
●For Windows 8, from the Start screen, type c, and then select Computer.
NOTE: If the HP Recovery partition is not listed, or you cannot check for its presence, you must recover
using the recovery media you created; see Recovery using the Windows recovery USB ash drive
on page 105. Or you must use the Windows operating system media and the Driver Recovery media
(purchased separately); see Recovery using Windows operating system media (purchased separately)
on page 106.
3. If the HP Recovery partition is listed, restart the computer, and then press esc while the HP logo is
displayed. The computer Startup Menu displays.
4. Press f11 to select the System Recovery option.
5. Choose your keyboard layout.
6. Select Troubleshoot.
7. Select Reset.
8. Follow the on-screen instructions to continue.
Recovery using the Windows recovery USB ash drive
To recover your system using the recovery USB ash drive you previously created:
NOTE: If you did not create a recovery USB ash drive or the one you created does not work, see Recovery
using Windows operating system media (purchased separately) on page 106.
1. If possible, back up all personal les.
2. Insert the recovery USB ash drive you created into a USB port on your computer.
3. Restart the computer and as soon as you see the HP logo screen, press f9 to display a list of boot
devices. Use the arrow keys to select your USB ash drive from the UEFI Boot Sources list. Press Enter to
boot from that device.
4. Choose your keyboard layout.
5. Select Troubleshoot.
6. Select Refresh your PC.
7. Follow the on-screen instructions.
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 105
Recovery using Windows operating system media (purchased separately)
To order a Windows operating system DVD, contact support. Go to http://www.hp.com/support, select your
country or region, and follow the on-screen instructions.
CAUTION: Using Windows operating system media completely erases the hard drive contents and reformats
the hard drive. All les that you have created and any software that you have installed on the computer are
permanently removed. When reformatting is complete, the recovery process helps you restore the operating
system, as well as drivers, software, and utilities.
To initiate recovery using Windows operating system media:
NOTE: This process takes several minutes.
1. If possible, back up all personal les.
2. Restart the computer, and then follow the instructions provided with the Windows operating system
media to install the operating system.
3. When prompted, press any keyboard key.
4. Follow the on-screen instructions.
After the repair is completed and the Windows desktop appears:
1. Remove the Windows operating system media, and then insert the Driver Recovery media.
2. Install the Hardware Enabling Drivers rst, and then install Recommended Applications.
Backing up, restoring, and recovering in Windows 7
Your computer includes tools provided by HP and Windows to help you safeguard your information
and retrieve it if you ever need to. These tools will help you return your computer to a proper working state or
even back to the original factory state, all with simple steps.
This section provides information about the following processes:
●Creating recovery media and backups
●Restoring and recovering your system
NOTE: This section describes an overview of backing up, restoring, and recovering options. For more details
about the Windows Backup and Restore tools provided, see Help and Support. To access Help and Support,
select Start > Help and Support.
Recovery after a system failure is only as good as your most recent backup.
106 Chapter 10 System backup and recovery
1. After you successfully set up the computer, create recovery media. This media can be used to reinstall
the original operating system in cases where the hard drive is corrupted or has been replaced. See
Creating recovery media on page 107.
2. As you add hardware and software programs, create system restore points. A system restore point is a
snapshot of certain hard drive contents saved by Windows System Restore at a specic time. A system
restore point contains information that Windows uses, such as registry settings. Windows creates a
system restore point for you automatically during a Windows update and during other system
maintenance (such as a software update, security scanning, or system diagnostics). You can also
manually create a system restore point at any time. For more information and steps for creating specic
system restore points, see Help and Support. To access Help and Support, select Start > Help and
Support.
3. As you add photos, video, music, and other personal les, create a backup of your personal information.
If les are accidentally deleted from the hard drive and they can no longer be restored from the Recycle
Bin, or if les become corrupted, you can restore the les that you backed up. In case of system failure,
you can use the backup les to restore the contents of your computer. See Backing up your information
on page 109.
NOTE: HP recommends that you print the recovery procedures and save them for later use, in case of
system instability.
Creating recovery media
After you successfully set up the computer, create recovery media. The media can be used to reinstall the
original operating system in cases where the hard drive is corrupted or has been replaced.
There are two types of recovery media. To determine which steps to follow for your computer:
1. Click the Start button.
2. Click All Programs.
●If Security and Protection is listed, continue with the steps in Creating recovery media using HP
Recovery Manager (select models only) on page 107.
●If Productivity and Tools is listed, continue with the steps in Creating recovery discs with HP
Recovery Disc Creator (select models only) on page 108.
Creating recovery media using HP Recovery Manager (select models only)
●To create recovery discs, your computer must have a DVD writer. Use DVD+R or DVD-R discs (purchased
separately). The discs you use will depend on the type of optical drive you are using.
NOTE: DVD+R DL, DVD-R DL, or DVD±RW disc are not supported.
●You have the option of creating a recovery USB ash drive instead, using a high-quality USB drive.
●If you are creating recovery discs, be sure to use high-quality discs. It is normal for the system to reject
defective discs. You will be prompted to insert a new blank disc to try again.
●The number of discs in the recovery-disc set depends on your computer model (typically 3 to 6 DVDs).
The Recovery Media Creation program tells you the specic number of blank discs needed to make the
set. If you are using a USB ash drive, the program will tell you the size of the drive required to store all
the data (minimum of 8 GB).
NOTE: The process of creating recovery media is lengthy. You can quit the process at any time. The
next time you initiate the process, it resumes where it left o.
Backing up, restoring, and recovering in Windows 7 107
NOTE: Do not use media cards for creating recovery media. The system may not be able to boot up from a
media card and you may not be able to run system recovery.
To create recovery discs:
1. Close all open programs.
2. Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and
then click HP Recovery Media Creation. If prompted, click Yes to allow the program to continue.
3. Click Create recovery media using blank DVD(s), and then click Next.
4. Follow the on-screen instructions. Label each disc after you make it (for example, Recovery 1, Recovery
2), and then store the discs in a secure place.
To create a recovery USB ash drive:
NOTE: You must use a USB ash drive with a capacity of at least 8 GB.
NOTE: Recovery Media Creation formats the USB ash drive, deleting any les on it.
1. Close all open programs.
2. Insert the USB ash drive into a USB port on the computer.
3. Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and
then click Recovery Media Creation.
4. Click Create recovery media with a USB ash drive, and then click Next.
5. Select the USB ash drive from the list of media. The program will let you know how much storage is
required to create the recovery drive. If the USB ash drive does not have enough storage capacity, it will
appear grayed out, and you must replace it with a larger USB ash drive. Click Next.
6. Follow the on-screen instructions. When the process is complete, label the USB ash drive and store it in
a secure place.
Creating recovery discs with HP Recovery Disc Creator (select models only)
HP Recovery Disc Creator is a software program that oers an alternative way to create recovery discs on
select models. After you successfully set up the computer, you can create recovery discs using HP Recovery
Disc Creator. The recovery discs allow you to reinstall your original operating system as well as select drivers
and applications if the hard drive becomes corrupted. HP Recovery Disc Creator creates two kinds of recovery
discs:
●Windows 7 operating system DVD—Installs the operating system without additional drivers or
applications.
●Driver Recovery DVD—Installs specic drivers and applications only, in the same way that the HP
Software Setup utility installs drivers and applications.
To create recovery discs, your computer must have a DVD writer. Use any of the following types of discs
(purchased separately): DVD+R, DVD+R DL, DVD-R, DVD-R DL, or DVD±RW. The discs you use will depend on
the type of optical drive you are using.
Creating recovery discs
NOTE: The Windows 7 operating system DVD can be created only once. The option to create that media will
not be available after you create a Windows DVD.
To create the Windows DVD:
108 Chapter 10 System backup and recovery
1. Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator.
2. Select Windows disk.
3. From the drop-down menu, select the drive for burning the recovery media.
4. Click the Create button to start the burning process. Label the disc after you create it, and store it in a
secure place.
After the Windows 7 operating system DVD has been created, create the Driver Recovery DVD:
1. Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator.
2. Select Driver disk.
3. From the drop-down menu, select the drive for burning the recovery media.
4. Click the Create button to start the burning process. Label the disc after you create it, and store it in a
secure place.
Backing up your information
You should create your initial backup immediately after initial system setup. As you add new software and
data les, you should continue to back up your system on a regular basis to maintain a reasonably current
backup. Your initial and subsequent backups allow you to restore your data and settings if a failure occurs.
You can back up your information to an optional external hard drive, a network drive, or discs.
Note the following when backing up:
●Store personal les in the Documents library, and back it up regularly.
●Back up templates that are stored in their associated directories.
●Save customized settings that appear in a window, toolbar, or menu bar by taking a screen shot of your
settings. The screen shot can be a time-saver if you have to reset your preferences.
●When backing up to discs, number each disc after removing it from the drive.
NOTE: For detailed instructions on various backup and restore options, perform a search for these topics in
Help and Support. To access Help and Support, select Start > Help and Support.
NOTE: You may be prompted by User Account Control for your permission or password when you perform
certain tasks. To continue a task, select the appropriate option. For information about User Account Control,
see Help and Support: Select Start > Help and Support.
To create a backup using Windows Backup and Restore:
NOTE: The backup process may take over an hour, depending on le size and the speed of the computer.
1. Select Start > All Programs > Maintenance > Backup and Restore.
2. Follow the on-screen instructions to set up your backup.
System Restore
If you have a problem that might be due to software that you installed on your computer, or if you want to
restore the system to a previous state without losing any personal information, use System Restore to return
the computer to a previous restore point.
NOTE: Always use this System Restore procedure before you use the System Recovery feature.
To start System Restore:
Backing up, restoring, and recovering in Windows 7 109
1. Close all open programs.
2. Click the Start button, right-click Computer, and then click Properties.
3. Click System protection, System Restore, click Next, and then follow the on-screen instructions.
System Recovery
WARNING! This procedure will delete all user information. To prevent loss of information, be sure to back up
all user information so you can restore it after recovery.
System Recovery completely erases and reformats the hard disk drive, deleting all data les that you have
created, and then reinstalls the operating system, programs, and drivers. However, you must reinstall any
software that was not installed on the computer at the factory. This includes software that came on media
included in the computer accessory box, and any software programs you installed after purchase. Any
personal les must be restored from backups you made.
If you were not able to create system recovery DVDs or USB ash drive, you can order a recovery disc set from
support. Go to http://www.hp.com/support, select your country or region, and follow the on-screen
instructions.
NOTE: Always use the System Restore procedure before you use the System Recovery program. See System
Restore on page 109.
You must choose one of the following methods to perform a System Recovery:
●Recovery image — Run System Recovery from a recovery image stored on your hard disk drive. The
recovery image is a le that contains a copy of the original factory-shipped software. To perform a
System Recovery from a recovery image, see System Recovery when Windows is responding
on page 110 or System Recovery when Windows is not responding on page 111.
●Recovery media — Run System Recovery from recovery media that you have created from les stored
on your hard disk drive or purchased separately. See System Recovery using recovery media (select
models only) on page 111.
System Recovery when Windows is responding
CAUTION: System Recovery deletes all data and programs you created or installed. Before you begin, back
up any important data to a CD or DVD or to a USB ash drive.
NOTE: In some cases, you must use recovery media for this procedure. If you have not already created this
media, follow the instructions in Creating recovery media on page 107.
If the computer is working and Windows 7 is responding, use these steps to perform a System Recovery:
1. Turn o the computer.
2. Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.
3. Turn on the computer.
4. When Windows has loaded, click the Start button, and then click All Programs.
●If Security and Protection is listed, continue with step 5.
●If Productivity and Tools is listed, follow the steps in System Recovery when Windows is not
responding on page 111.
5. Click Security and Protection, click Recovery Manager, and then click Recovery Manager. If prompted,
click Yes to allow the program to continue.
110 Chapter 10 System backup and recovery
6. Under I need help immediately, click System Recovery.
7. Select Yes, and then click Next. Your computer restarts.
8. When the computer restarts, you will see the Recovery Manager welcome screen again. Under I need
help immediately, click System Recovery. If you are prompted to back up your les, and you have not
done so, select Back up your les rst (recommended), and then click Next. Otherwise, select Recover
without backing up your les, and then click Next.
9. System Recovery begins. After System Recovery is complete, click Finish to restart the computer.
10. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then turn the
computer back on.
System Recovery when Windows is not responding
CAUTION: System Recovery deletes all data and programs you created or installed.
If Windows is not responding, but the computer is working, follow these steps to perform a System Recovery.
1. Turn o the computer. If necessary, press and hold the power button until the computer turns o.
2. Disconnect all peripheral devices from the computer, except the monitor, keyboard, and mouse.
3. Press the power button to turn on the computer.
4. As soon as you see the HP logo screen, repeatedly press the F11 key on your keyboard until the Windows
is Loading Files… message appears on the screen.
5. At the HP Recovery Manager screen, follow the on-screen instructions to continue.
6. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then turn the
computer back on.
System Recovery using recovery media (select models only)
Use the steps provided in this section if you created recovery media using Creating recovery media using HP
Recovery Manager (select models only) on page 107. If you used HP Recovery Disc Creator to create a
Windows 7 operating system DVD and a Driver Recovery DVD, use the steps in Using HP Recovery Disc
operating system discs (select models only) on page 112.
CAUTION: System Recovery deletes all data and programs you have created or installed. Back up any
important data to a CD or DVD or to a USB ash drive.
To perform a System Recovery using recovery media:
1. If you are using a set of DVDs, insert the rst recovery disc into the DVD drive tray, and close the tray. If
you are using a recovery USB ash drive, insert it into a USB port.
2. Click the Start button, and then click Shut Down.
or
If the computer is not responding, press and hold the power button for approximately 5 seconds or until
the computer turns o.
3. Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.
4. Press the power button to turn on the computer, and press Esc as the computer is powering on to
display the startup menu.
5. Use the arrow keys to select the boot menu, and press Enter. Use the arrow keys to select the location
where the recovery media is inserted (USB or DVD). Press Enter to boot from that device.
Backing up, restoring, and recovering in Windows 7 111
6. If Recovery Manager asks if you want to run System Recovery from Media or Hard Drive, select Media. On
the Welcome screen, under I need help immediately, click Factory Reset.
7. If you are prompted to back up your les, and you have not done so, select Back up your les rst
(recommended), and then click Next. Otherwise, select Recover without backing up your les, and
then click Next.
8. If you are prompted to insert the next recovery disc, do so.
9. When Recovery Manager is nished, remove the recovery disc or the recovery USB ash drive from the
system.
10. Click Finish to restart the computer.
Using HP Recovery Disc operating system discs (select models only)
Use the steps provided in this section if you used HP Recovery Disc Creator to create a Windows 7 operating
system DVD and a Driver Recovery DVD. If you created recovery media using Creating recovery media using HP
Recovery Manager (select models only) on page 107. use the steps in System Recovery using recovery media
(select models only) on page 111.
If you cannot use the recovery discs you previously created using the HP Recovery Disc Creator (select models
only), you must purchase a Windows 7 operating system DVD to reboot the computer and repair the operating
system.
To order a Windows 7 operating system DVD, contact support. Go to http://www.hp.com/support, select your
country or region, and follow the on-screen instructions.
CAUTION: Using a Windows 7 operating system DVD completely erases the hard drive contents and
reformats the hard drive. All les that you have created and any software that you have installed on the
computer are permanently removed. When reformatting is complete, the recovery process helps you restore
the operating system, as well as drivers, software, and utilities.
To initiate recovery using a Windows 7 operating system DVD:
NOTE: This process takes several minutes.
1. If possible, back up all personal les.
2. Restart the computer, and then insert the Windows 7 operating system DVD into the optical drive before
the Windows operating system loads.
NOTE: If the computer does not boot to the DVD, restart the computer and press Esc as the computer
is powering on to see the startup menu. Use the arrow keys to select the boot menu and press Enter. Use
the arrow keys to select the location where the recovery DVD is inserted. Press Enter to boot from that
device.
3. When prompted, press any keyboard key.
4. Follow the on-screen instructions.
5. Click Next.
6. Select Install now.
7. Follow the on-screen instructions.
112 Chapter 10 System backup and recovery
After the repair is completed:
1. Eject the Windows 7 operating system DVD and then insert the Driver Recovery DVD.
2. Follow the on-screen instructions to install the Hardware Enabling Drivers rst, and then install
Recommended Applications.
Backing up, restoring, and recovering in Windows 7 113
A Battery replacement
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 (140ºF).
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.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as
the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to
the internal components of the computer.
5. Remove the access panel.
6. Locate the battery and battery holder on the system board.
NOTE: On some computer models, it may be necessary to remove an internal component to gain
access to the battery.
7. Depending on the type of battery holder on the system board, complete the following instructions to
replace the battery.
Type 1
a. Lift the battery out of its holder.
114 Appendix A Battery replacement
b. Slide the replacement battery into position, positive side up. The battery holder automatically
secures the battery in the proper position.
Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the
positive side up. Push the other edge down until the clamp snaps over the other edge of the
battery (2).
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
115
b. Insert the new battery and position the clip back into place.
NOTE: After the battery has been replaced, use the following steps to complete this procedure.
8. Replace the access panel.
9. Plug in the computer and turn on power to the computer.
10. Reset the date and time, your passwords, and any special system setups using Computer Setup.
11. Lock any security devices that were disengaged when the access panel was removed.
116 Appendix A Battery replacement
B Statement of Volatility
HP conrms that Intel-based business desktop systems contain DDR4 volatile memory (memory amount
depends on the customer conguration). In addition, the motherboard in the condition originally shipped
without subsequent modication or the addition or installation of any applications, features, or functionality,
contain the following nonvolatile memory: Real Time Clock battery backed-up conguration memory (256
Bytes), DIMM Serial Presence Detect (SPD) conguration data (256 Bytes per module, 128 Bytes
programmable), Serial Peripheral Interface (SPI) ROM for System BIOS (16M Bytes) and Super I/O’s: masked
keyboard ROM (overall 2K Bytes). In addition, these units contain a Trusted Platform Module (TPM) that
contains 16K Bytes of non-volatile memory for user data. The volatile memory will not hold any user data
once power has been removed for 30 seconds or longer.
To restore the Non-Volatile memory:
1. Download the latest BIOS (system ROM) from the HP website.
2. Follow the instructions to ash the BIOS that are found on the website.
3. Turn on the system, and while system is powering on, and after the HP splash screen, press the F10 key
to enter BIOS setup screen.
4. Select Security > Restore Security Settings to Factory Defaults. Select Yes to conrm. The system will
reboot. This action will reset the settings in the Security menu to their defaults, reset the TPM and
embedded Fingerprint reader (if present), and clear the passwords.
NOTE: Although the TPM security keys will be cleared, data in the non-volatile memory indices may
not be. Data stored in these indices should not contain security sensitive information. If an application
locks down and secures the non-volatile indices, these indices cannot be cleared.
5. Re-enter the F10 setup utility.
6. Select Advanced > Secure Boot Conguration.
7. Select Reset Secure Boot Keys to factory defaults.
8. Press the F10, and the select Yes to save changes.
9. Re-enter the F10 setup utility.
10. Select Apply Factory Defaults and Exit, and the select Yes to conrm.
11. Re-enter the F10 Setup Utility and select Save Custom Defaults to erase any custom values previously
saved.
If Absolute Persistence Module is enabled on the computer, see the service provider for instructions to disable
the feature.
117
C Power cord set requirements
The power supplies on some computers have external power switches. The voltage select switch feature on
the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power
supplies on those computers that do not have external power switches are equipped with internal switches
that sense the incoming voltage and automatically switch to the proper voltage.
The power cord set received with the computer meets the requirements for use in the country where you
purchased the equipment.
Power cord sets for use in other countries must meet the requirements of the country where you use the
computer.
General requirements
The requirements listed below are applicable to all countries:
1. The power cord must be approved by an acceptable accredited agency responsible for evaluation in the
country where the power cord set will be installed.
2. The power cord set must have a minimum current capacity of 10A (7A Japan only) and a nominal voltage
rating of 125 or 250 volts AC, as required by each country’s power system.
3. The diameter of the wire must be a minimum of 0.75 mm2 or 18AWG, and the length of the cord must be
between 1.8 m (6 feet) and 3.6 m (12 feet).
The power cord should be routed so that it is not likely to be walked on or pinched by items placed upon it or
against it. Particular attention should be paid to the plug, electrical outlet, and the point where the cord exits
from the product.
WARNING! Do not operate this product with a damaged power cord set. If the power cord set is damaged in
any manner, replace it immediately.
Japanese power cord requirements
For use in Japan, use only the power cord received with this product.
CAUTION: Do not use the power cord received with this product on any other products.
118 Appendix C Power cord set requirements
Country-specic requirements
Additional requirements specic to a country are shown in parentheses and explained below.
Country Accrediting Agency Country Accrediting Agency
Australia (1)
Austria (1)
Belgium (1)
Canada (2)
EANSW
OVE
CEBC
CSA
Italy (1)
Japan (3)
Norway (1)
Sweden (1)
IMQ
METI
NEMKO
SEMKO
Denmark (1)
Finland (1)
France (1)
Germany (1)
DEMKO
SETI
UTE
VDE
Switzerland (1)
United Kingdom (1)
United States (2)
SEV
BSI
UL
1. The exible cord must be Type HO5VV-F, 3-conductor, 0.75mm2 conductor size. Power cord set ttings (appliance coupler and
wall plug) must bear the certication mark of the agency responsible for evaluation in the country where it will be used.
2. The exible cord must be Type SVT or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole grounding type
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) conguration.
3. Appliance coupler, exible cord, and wall plug must bear a “T” mark and registration number in accordance with the Japanese
Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm2 conductor size. Wall plug must be a two-pole
grounding type with a Japanese Industrial Standard C8303 (7A, 125V) conguration.
Country-specic requirements 119
DSpecications
Chassis (in the desktop position)
Height
Width
Depth
3.7 in
10.6 in
11.8 in
95 mm
270 mm
300 mm
Approximate Weight 9.8 lb 4.43 kg
Weight Supported (maximum distributed load in desktop position) 77 lb 35 kg
Temperature Range
Operating
Nonoperating
50° to 95°F
-22° to 140°F
10° to 35°C
-30° to 60°C
NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct sustained
sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and number of options installed.
Relative Humidity (noncondensing)
Operating
Nonoperating (38.7°C max wet bulb)
10-90%
5-95%
10-90%
5-95%
Maximum Altitude (unpressurized)
Operating
Nonoperating
10,000 ft
30,000 ft
3048 m
9144 m
Power Supply
Operating Voltage Range
Rated Voltage Range1
Rated Line Frequency
Operating Line Frequency
90-264 VAC
100-240 VAC
50-60 Hz
47-63 Hz
Standard Eciency
High Eciency
180W active PFC
82/85/82% ecient at 20/50/100% load (115V)
Rated Input Current 3.6A
1This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark requirements for use
in the countries of the European Union. The active power factor corrected power supply also has the added benet of not requiring an
input voltage range select switch.
120 Appendix D Specications
Index
A
access panel
illustrated 4
locked 63
removal and replacement 18
administrator password 99
audible codes 97
audio problems 75
B
backup and recovery, Windows 7
106
Backup and Restore, Windows 7
109
backups
creating Windows 7 107, 109
battery
disposal 15
battery replacement 114
beep codes 97
BIOS
clearing and resetting 101
booting options
Full Boot 92
Quick Boot 92
C
cable management 16
cable pinouts, SATA data 16
cautions
AC power 9
cables 14
cooling fan 14
electrostatic discharge 9
keyboard cleaning 13
keyboard keys 13
CD-ROM or DVD problems 85
chasis types, illustrated 9
cleaning
computer 12
mouse 13
safety precautions 12
CMOS
backing up 99
computer
specications 120
computer cleaning 12
Computer Setup
access problem 62
country power cord set
requirements 119
Customer Support 60
D
DIMMs. See memory
disassembly preparation 17
drive cage
removal and replacement 24
Driver Recovery DVD,
creating 108
using for restore 112
Driver Recovery media, Windows
106
Driver Recovery media, Windows
8.1 106
drives
locations 31
E
electrostatic discharge (ESD) 9
preventing damage 10
error
codes 92, 97
messages 92
expansion card
installation 20
removal 20
F
F10 Setup
access problem 62
f11 recovery, Windows 8 104
f11 recovery, Windows 8.1 104
fan
illustrated 6
removal and replacement 37
fan sink
illustrated 6
removal and replacement 38
fan, power supply 14
ash drive problems 88
ashing LEDs 97
front bezel
illustrated 4
removal and replacement 18
removing blanks 19
front I/O assembly
illustrated 6
removal and replacement 42
front panel components 2
front panel problems 89
G
general problems 62
graphics card
illustrated 6
grounding methods 10
H
hard drive
installation 33
proper handling 14
removal 33
SATA characteristics 15
hard drive problems 67
hard drive recovery
Windows 104
Windows 7 110
Windows 8.1 104
hardware installation problems 80
Help and Support
Windows 7 106
helpful hints 61
HP PC Hardware Diagnostics (UEFI)
downloading 102
HP Recovery Disc Creator, using 108
I
installing
battery 114
expansion card 20
hard drive 33
memory 26
optical drive 32
Index 121
Internet access problems 89
K
keyboard
cleaning 13
keyboard problems 78
M
media card reader
problems 69
memory
installation 26
problems 84
socket population 26
specications 26
monitor problems 70
mouse
cleaning 13
problems 78
N
network problems 81
numeric error codes 92
O
operating guidelines 12
operating system media, Windows
8 106
operating system media, Windows
8.1 106
optical drive
installation 32
problems 85
removal 31
overheating, prevention 12
P
password
administrator 99
clearing 99
power-on 99
POST error messages 92
power cord set requirements
country specic 119
power problems 66
power supply
fan 14
illustrated 4
operating voltage range 120
removal and replacement 17
power switch assembly
illustrated 6
removal and replacement 43
power-on password 99
printer port (expansion), PCI card
illustrated 6
printer problems 77
problems
audio 75
CD-ROM or DVD 85
Computer Setup 62
F10 Setup 62
ash drive 88
front panel 89
general 62
hard drive 67
hardware installation 80
Internet access 89
keyboard 78
Media Card Reader 69
memory 84
monitor 70
mouse 78
network 81
power 66
printer 77
software 91
processor
removal and replacement 39
product ID location 1
R
rear panel components 3
recovery discs, steps for creating
Windows 7 108
recovery discs, using for restore
112
recovery media, creating 108
recovery media, creating Windows
7 107
recovery partition, Windows 8 104
recovery partition, Windows 8.1
104
recovery USB ash drive, steps for
creating Windows 7 108
recovery using Windows 8 operating
system media 106
recovery using Windows 8.1
operating system media 106
removal and replacement
drive cage 24
fan 37
fan sink 38
front bezel 18
front I/O assembly 42
power supply 17
power switch assembly 43
processor 39
speaker 44
system board 44
removing
battery 114
bezel blanks 19
expansion card 20
hard drive 33
optical drive 31
resetting
CMOS 99
password jumper 99
restoring the hard drive, Windows
104
restoring the hard drive, Windows
8.1 104
S
safety and comfort 60
safety precautions
cleaning 12
SATA
connectors on system board 15
data cable pinouts 16
hard drive characteristics 15
SATA data cable
illustrated 6
screws, correct size 14
serial number location 1
service considerations 14
software
problems 91
servicing computer 14
speaker
illustrated 6
removal and replacement 44
specications
computer 120
static electricity 10
system board
illustrated 4
122 Index
removal and replacement 44
SATA connectors 15
system board connections 29
System Recovery using Windows 7
recovery media 111
System Recovery, Windows 7 110
system restore points, creating
Windows 7 107
System Restore, Windows 7 109
T
tamper-proof screws
tool 14
temperature control 12
tools, servicing 14
Torx T15 screwdriver 14
tower conversion 47
V
ventilation, proper 12
W
Windows 7
backing up information 109
backup and recovery 106
Backup and Restore 109
creating backups 107
creating recovery media 107
creating system restore points
107
hard drive recovery 110
Help and Support 106
steps for creating recovery
discs 108
steps for creating recovery
media 107
steps for creating recovery USB
ash drive 108
System Recovery 110
System Recovery using recovery
media 111
System Restore 109
Windows 7 operating system discs
using for restore 112
Windows 7 operating system DVD
creating 108
using for restore 112
Windows 7 operating system media
creating 108
Windows 8
backup and restore 104
Driver Recovery media 106
f11 recovery 104
hard drive recovery 104
operating system DVD 106
recovery partition 104
restoring the hard drive 104
Windows 8.1
backup and restore 104
Driver Recovery media 106
f11 recovery 104
hard drive recovery 104
operating system DVD 106
recovery partition 104
restoring the hard drive 104
Index 123