HP EliteDesk 700 G1 Maintenance and Service Guide

Maintenance and Service Guide
HP EliteDesk 700 G1 Small Form Factor
© Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.
Microsoft and Windows are U.S. registered trademarks of the Microsoft group of companies.
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 (August 2014)
Document Part Number: 789433-001
Product notice
This guide describes features that are common to most models. Some features may not be available on your computer.
About This Book
WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily
harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage
to equipment or loss of information.
NOTE: Text set off in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Product features ............................................................................................................... 1
Front panel components ............................................................................................................ 2
Rear panel components ............................................................................................................ 3
Serial number location .............................................................................................................. 4
2 Activating and Customizing the Software .......................................................................... 5
Activating and customizing the software in Windows 7 ................................................................ 5
Activating the Windows operating system .................................................................... 5
Downloading Windows 7 updates .............................................................................. 6
Installing or upgrading device drivers .......................................................................... 6
Customizing the monitor display ................................................................................. 6
Activating and customizing the software in Windows 8 ................................................................ 6
Activating the Windows Operating System ................................................................... 6
Downloading Windows 8 updates .............................................................................. 7
Customizing the monitor display ................................................................................. 7
3 Illustrated parts catalog .................................................................................................... 8
Small Form Factor (SFF) chassis spare parts ................................................................................. 8
Computer major components ...................................................................................... 8
Cables ..................................................................................................................... 9
Miscellaneous parts ................................................................................................. 10
Misc boards ........................................................................................................... 11
Mass storage devices .............................................................................................. 11
4 Routine care, SATA drive guidelines, and disassembly preparation ................................. 13
Electrostatic discharge information ........................................................................................... 13
Generating static .................................................................................................... 14
Preventing electrostatic damage to equipment ............................................................. 14
Personal grounding methods and equipment .............................................................. 15
Grounding the work area ......................................................................................... 15
Recommended materials and equipment .................................................................... 15
v
Operating guidelines .............................................................................................................. 16
Routine care .......................................................................................................................... 17
General cleaning safety precautions .......................................................................... 17
Cleaning the Computer Case .................................................................................... 17
Cleaning the keyboard ............................................................................................ 17
Cleaning the monitor ............................................................................................... 18
Cleaning the mouse ................................................................................................. 18
Service considerations ............................................................................................................ 18
Power supply fan .................................................................................................... 18
Tools and software Requirements .............................................................................. 19
Screws ................................................................................................................... 19
Cables and connectors ............................................................................................ 19
Hard Drives ............................................................................................................ 19
Lithium coin cell battery ............................................................................................ 20
SATA hard drives ................................................................................................................... 20
SATA hard drive cables .......................................................................................................... 21
SATA data cable ..................................................................................................... 21
SMART ATA drives ................................................................................................................. 21
Cable management ................................................................................................................ 21
5 Removal and replacement procedures: Small Form Factor ............................................... 22
Preparation for disassembly .................................................................................................... 22
Access panel ......................................................................................................................... 23
Front bezel ............................................................................................................................ 24
Front bezel security ................................................................................................................ 25
Bezel blanks .......................................................................................................................... 27
Memory ................................................................................................................................ 28
DIMMs .................................................................................................................. 28
DDR3-SDRAM DIMMs .............................................................................................. 28
Populating DIMM sockets ......................................................................................... 28
Installing DIMMs ..................................................................................................... 29
Expansion card ...................................................................................................................... 31
System board connections ....................................................................................................... 35
Drives ................................................................................................................................... 36
Drive positions ........................................................................................................ 38
Removing a 3.5-inch device ..................................................................................... 39
Installing a 3.5-inch device ....................................................................................... 40
Removing a slim optical drive ................................................................................... 42
Installing a slim optical drive .................................................................................... 43
Removing and replacing a 3.5-inch hard drive ........................................................... 44
Removing a 2.5-inch hard drive ................................................................................ 47
vi
Installing a 2.5-inch hard drive ................................................................................. 47
Power supply ......................................................................................................................... 49
Fan duct ............................................................................................................................... 52
Smart Cover Lock (solenoid lock) .............................................................................................. 53
Hood sensor .......................................................................................................................... 56
Cable routing ........................................................................................................................ 57
Front I/O assembly ................................................................................................................ 58
Power switch assembly ........................................................................................................... 60
Speaker ................................................................................................................................ 62
Fan sink ................................................................................................................................ 63
Processor .............................................................................................................................. 64
System board ........................................................................................................................ 66
System board callouts ............................................................................................................. 68
Changing from desktop to tower configuration .......................................................................... 70
6 Computer Setup (F10) Utility ........................................................................................... 71
Computer Setup (F10) Utilities ................................................................................................. 71
Using Computer Setup (F10) Utilities .......................................................................... 72
Computer Setup—File .............................................................................................. 73
Computer Setup—Storage ........................................................................................ 74
Computer Setup—Security ........................................................................................ 76
Computer Setup—Power .......................................................................................... 81
Computer Setup—Advanced .................................................................................... 83
Recovering the Configuration Settings ....................................................................................... 85
7 Troubleshooting without diagnostics ............................................................................... 86
Safety and comfort ................................................................................................................. 86
Before you call for technical support ......................................................................................... 86
Helpful hints .......................................................................................................................... 87
Solving general problems ........................................................................................................ 89
Solving power problems ......................................................................................................... 93
Solving hard drive problems .................................................................................................... 95
Solving media card reader problems ........................................................................................ 98
Solving display problems ...................................................................................................... 100
Solving audio problems ........................................................................................................ 105
Solving printer problems ....................................................................................................... 107
Solving keyboard and mouse problems .................................................................................. 109
Solving Hardware Installation Problems .................................................................................. 111
Solving Network Problems .................................................................................................... 113
Solving memory problems ..................................................................................................... 117
Solving processor problems ................................................................................................... 119
vii
Solving CD-ROM and DVD problems ...................................................................................... 120
Solving USB flash drive problems ........................................................................................... 122
Solving front panel component problems ................................................................................. 123
Solving Internet access problems ............................................................................................ 123
Solving software problems .................................................................................................... 125
8 POST error messages .................................................................................................... 127
POST numeric codes and text messages .................................................................................. 128
Interpreting POST diagnostic front panel LEDs and audible codes .............................................. 136
9 Password security and resetting CMOS ......................................................................... 140
Establishing a Setup or Power-on password ............................................................................. 141
Resetting the Setup and Power-on password ............................................................................ 141
Changing a Setup or Power-On password .............................................................................. 142
Deleting a Setup or Power-On password ................................................................................. 143
Resetting the password jumper ............................................................................................... 143
Clearing and resetting the CMOS .......................................................................................... 145
10 HP PC Hardware Diagnostics ...................................................................................... 147
Why run HP PC Hardware Diagnostics ................................................................................... 147
How to access and run HP PC Hardware Diagnostics ............................................................... 147
Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 148
11 System backup and recovery ...................................................................................... 149
Backing up, restoring, and recovering in Windows 8 ............................................................... 149
Creating recovery media and backups .................................................................... 150
Restoring and recovering using Windows 8 tools ...................................................... 151
Using Windows 8 Refresh ....................................................................... 151
Using Windows 8 Reset .......................................................................... 152
Recovery using the Windows 8 recovery USB flash drive ............................ 153
Recovery using Windows 8 operating system media (purchased separately) . 154
Backing up, restoring, and recovering in Windows 7 ............................................................... 155
Creating recovery media ........................................................................................ 155
Creating recovery media using HP Recovery Manager (select models only) ... 156 Creating recovery discs with HP Recovery Disc Creator (select models only) . . 157
Creating recovery discs ............................................................ 157
Backing up your information .................................................................... 158
System Restore ...................................................................................................... 158
System Recovery ................................................................................................... 159
System Recovery when Windows is responding ......................................... 159
viii
System Recovery when Windows is not responding .................................... 160
System Recovery using recovery media (select models only) ......................... 160
Using HP Recovery Disc operating system discs (select models only) ............. 161
Appendix A Battery replacement ..................................................................................... 163
Appendix B Statement of Volatility .................................................................................. 166
Appendix C Power cord set requirements ........................................................................ 168
General requirements ........................................................................................................... 168
Japanese power cord requirements ........................................................................................ 168
Country-specific requirements ................................................................................................ 169
Appendix D Specifications ............................................................................................... 170
Index ............................................................................................................................... 172
ix
x

1 Product features

Features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only).
NOTE: The computer can be used in a tower orientation or a desktop orientation.
1

Front panel components

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive bays.
1 Slim Optical Drive (optional) 5 Headphone Connector
2 USB 2.0 Ports (black) 6 Dual-State Power Button
3 USB 3.0 Ports (blue) 7 Hard Drive Activity Light
4 Microphone/Headphone Connector 8 3.5-inch Media Card Reader (optional)
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.
NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code.Refer to
audible codes on page 136 to interpret the code.
Interpreting POST diagnostic front panel LEDs and
2 Chapter 1 Product features

Rear panel components

1 PS/2 Mouse Connector (green) 7 PS/2 Keyboard Connector (purple)
2
3
4
5
6 Power Cord Connector
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use the connector for a line-in device or a microphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.
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 configuration, 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.
RJ-45 Network Connector 8 DisplayPort Monitor Connectors
Serial Connector 9 VGA Monitor Connector
USB 2.0 Ports (black) 10 USB 3.0 Ports (blue)
Line-In Audio Connector (blue) 11 Line-Out Connector for powered audio
devices (green)
Rear panel components
3

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance.
4 Chapter 1 Product features
2 Activating and Customizing the
Software
NOTE: This chapter provides information for both Windows 7 and Windows 8.

Activating and customizing the software in Windows 7

If your computer was not shipped with a Windows® operating system, some portions of this documentation do not apply. Additional information is available in online help after you activate the operating system.
CAUTION: Do not add optional hardware or third-party devices to the computer until the operating
system is successfully activated. Doing so may cause errors and prevent the operating system from installing properly.
NOTE: Be sure there is a 10.2 cm (4 inch) clearance at the back of the unit and above the monitor to
permit the required airflow.

Activating the Windows operating system

The first time you turn on the computer, the operating system is set up and activated automatically. This process takes about 5 to 10 minutes. Carefully read and follow the instructions on the screen to complete the activation.
We recommend that you register your computer with HP during operating system setup so you can receive important software updates, facilitate support questions, and sign up for special offers.
CAUTION: After the activation process has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE
PROCESS IS COMPLETE. Turning off the computer during the activation process may damage the software that runs the computer or prevent its proper installation.
NOTE: If the computer shipped with more than one operating system language on the hard drive, the
activation process could take up to 60 minutes.
Activating and customizing the software in Windows 7
5

Downloading Windows 7 updates

Microsoft may release updates to the operating system. To help keep the computer running optimally, HP recommends checking for the latest updates during the initial installation and periodically throughout the life of the computer.
1. To set up your Internet connection, click Start > Internet Explorer and follow the instructions
on the screen.
2. After an Internet connection has been established, click the Start > All Programs > Windows
Update.
3. Run Windows Update monthly thereafter.

Installing or upgrading device drivers

When installing optional hardware devices after the operating system installation is complete, you must also install the drivers for each of the devices.
In Windows 7, if prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse button in the dialog box to locate the i386 folder. This action points the operating system to the appropriate drivers.
Obtain the latest support software, including support software for the operating system, from
http://www.hp.com/support. Select your country and language, select Download drivers and
software (and firmware), enter the model number of the computer, and press Enter.

Customizing the monitor display

If you wish, you can select or change the monitor refresh rates, screen resolution, color settings, font sizes, and power management settings.
For more information, refer to the online documentation provided with the graphics controller utility or the documentation that came with your monitor.
Right-click on the Windows desktop, then click Personalize to change display settings.

Activating and customizing the software in Windows 8

Additional information is available in online help after you activate the operating system.
NOTE: Be sure there is a 10.2 cm (4 inch) clearance at the back of the unit and above the monitor to
permit the required airflow.

Activating the Windows Operating System

The first time you turn on the computer, the operating system is set up and activated automatically. This process takes about 5 to 10 minutes. Carefully read and follow the instructions on the screen to complete the activation.
6 Chapter 2 Activating and Customizing the Software
We recommend that you register your computer with HP during operating system set up so you can receive important software updates, facilitate support questions, and sign up for special offers. You can also register your computer with HP using the Register with HP app on the Start screen.
CAUTION: After the activation process has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE
PROCESS IS COMPLETE. Turning off the computer during the activation process may damage the software that runs the computer or prevent its proper installation.

Downloading Windows 8 updates

Microsoft may release updates to the operating system. To help keep the computer running optimally, HP recommends checking for the latest updates during the initial installation and periodically throughout the life of the computer.
Run Windows Update as soon as possible after you set up your computer.
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings > Windows Update.
3. Run Windows Update monthly thereafter.

Customizing the monitor display

You can customize display settings for Windows 8 separately for the Start screen and the Desktop.
To customize the Start screen:
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings.
3. Click Personalize to change the display settings.
To customize the Desktop:
1. Click the Desktop app on the Start screen.
2. Right-click on the desktop, and then click Personalize to change display settings.
Activating and customizing the software in Windows 8
7

3 Illustrated parts catalog

This chapter provides spare part information for all chassis.

Small Form Factor (SFF) chassis spare parts

Computer major components

Item Description
(1) Front bezel
(2) Access panel
(3) Power supply
8 Chapter 3 Illustrated parts catalog
Item Description
240W, 92% efficient
240W, 90% efficient
240W, standard
(4) System board (includes replacement thermal material)
For use in models without Windows 8
For use in models with Windows 8 Standard
For use in models with Windows 8 Professional
For use in models with NetClone
Memory modules (PC3-12800)
8-GB
4-GB
2-GB
Processors (include replacement thermal material)
Intel Core i7 4770 (3.4-GHz, 8-MB L3 cache)

Cables

Intel Core i5 4670 (3.4-GHz, 6-MB L3 cache)
Intel Core i5 4570 (3.2-GHz, 6-MB L3 cache)
Item Description
(1) Front I/O assembly
(2) Power switch assembly
(3) SATA drive power cable
Hard drive SATA cable, 14 inch, 1 straight end, 1 angled end
Optical drive SATA cable, 19.5 inch, 2 straight ends
SATA cable, 25.2 inch, 1 straight end, 1 angled end
Small Form Factor (SFF) chassis spare parts
9
Item Description
DMS-59 to dual VGA cable
Adapter, DisplayPort to VGA
Adapter, DisplayPort to DVI
Adapter, DisplayPort to HDMI
DisplayPort cable

Miscellaneous parts

Item Description
(1) Fan sink (includes replacement thermal material)
(2) Fan duct
(3) Speaker
(4) Hood sensor
Optical drive bezel blank
Solenoid lock
Printer port, PCI card
HP Ultraslim Keyed Cable Lock
Rubber foot kit (includes four rubber feet)
Chassis stand
Serial port, PCI card
Hard drive conversion bracket
USB powered speakers
10 Chapter 3 Illustrated parts catalog
Item Description
Mouse
PS2, optical
USB, HP Elite
Washable
Wireless, HP Elite
USB, optical
Rubber foot kit (includes four rubber feet)
Keyboard
PS/2
USB
USB, wireless
Smart card
Wireless keyboard, mouse, and dongle

Misc boards

Description
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB
AMD Radeon HD8490 PCIe x16 graphics card, 1 GB
AMD Radeon HD8450 PCIe x16 graphics card, 1 GB
GeForce GT630 PCIe x16 graphics card, 2 GB
Intel PRO/1000 single port GbE NIC, includes bracket
HP WLAN 802.11 a/b/g/n 2x2 PCIe module

Mass storage devices

Description
Hard drive
2 TB, 7200 rpm
1 TB hard drive, hybrid SSD, 2.5-inch hard drive
1 TB, 10000 rpm
Small Form Factor (SFF) chassis spare parts
11
Description
1 TB, 7200 rpm
750 GB, 7200 rpm, hybrid SSD, 2.5-inch hard drive
500 GB, 10000 rpm
500 GB, 7200 rpm, self-encrypting (SED)
500 GB hard drive, hybrid SSD, 2.5-inch hard drive
256-GB Solid-state Drive (SSD), self-encrypting (SED)
128-GB Solid-state Drive (SSD)
32 GB mSATA drive
32 GB mSATA drive, 2.5-inch
Optical drive
DVD±RW drive
NOTE: 2.5-inch solid-state drives require an adapter for installation.
12 Chapter 3 Illustrated parts catalog
4 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 finger 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 affected 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
13

Generating static

The following table shows that:
Different activities generate different amounts of static electricity.
Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs from plastic tube
Removing DIPs from vinyl tray
Removing DIPs from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
These are then multi-packaged inside plastic tubes, trays, or Styrofoam.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
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.
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
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.
14 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

Personal grounding methods and equipment

Use the following equipment to prevent static electricity damage to equipment:
Wrist straps are flexible 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 fit snugly into the banana plug connector on the grounding mat or workstation.
Heel straps/Toe straps/Boot straps can be used at standing workstations and are
compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate

Grounding the work area

To prevent static damage at the work area, use the following precautions:
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected
to the work surface and properly grounded tools and equipment.
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate.
Handle them only at static-free work areas.
Turn off power and input signals before inserting and removing connectors or test equipment.
Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and
Styrofoam.
1,500
7,500
15,000
Use field 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
Electrostatic discharge information
15
Conductive foam
Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
Static-dissipative table or floor mats with hard tie to ground
Field service kits
Static awareness labels
Wrist straps and footwear straps providing one-megohm +/- 10% resistance
Material handling packages
Conductive plastic bags
Conductive plastic tubes
Conductive tote boxes
Opaque shielding bags
Transparent metallized shielding bags
Transparent shielding tubes

Operating guidelines

To prevent overheating and to help prolong the life of the computer:
Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented
sides of the computer and above the monitor to permit the required airflow.
Never restrict the airflow 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 airflow.
Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign
matter can block the vents and limit the airflow. Be sure to unplug the computer before cleaning the air vents.
Never operate the computer with the cover or side panel removed.
Do not stack computers on top of each other or place computers so near each other that they are
subject to each other’s re-circulated or preheated air.
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must
be provided on the enclosure, and the same operating guidelines listed above will still apply.
Keep liquids away from the computer and keyboard.
16 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation
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 flammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and
then use the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the Computer Case

Follow all safety precautions in General cleaning safety precautions on page 17 before cleaning the computer.
To clean the computer case, follow the procedures described below:
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with
a cloth or swab dampened with clear water.
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will
evaporate quickly and not leave a residue.
After cleaning, always wipe the unit with a clean, lint-free cloth.
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents
and limit the airflow.

Cleaning the keyboard

Follow all safety precautions in General cleaning safety precautions on page 17 before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
Computer Case on page 17.
When cleaning debris from under the keys, review all rules in
on page 17 before following these procedures:
General cleaning safety precautions
Routine care
Cleaning the
17
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 fibers or dirt in confined 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 flammable liquids on the monitor.
To clean the monitor body follow the procedures in

Cleaning the mouse

Before cleaning the mouse, ensure that the power to the computer is turned off.
Clean the mouse ball by first 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

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
off when the computer is in “Standby,” “Suspend,” or “Off” modes.
Cleaning the Computer Case on page 17.
Cleaning the Computer Case on page 17.
You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
18 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

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 different 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 finish. U.S. screws have a silver finish 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 flat, flexible 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.
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.
Service considerations
19
If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive
while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a
drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic
Electrostatic discharge information on page 13
fields 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 fire and chemical burn if the
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, 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 differential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for configuring drive N/A
Data transfer rate 3.0 Gb/s
20 Chapter 4 Routine care, SATA drive guidelines, and disassembly preparation

SATA hard drive cables

SATA data cable

Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA
1.5 Gb/s drives.
Current HP desktop products ship with SATA 3.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overflexed. 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 flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the
wires.
Some flat 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.
SATA hard drive cables
21
5 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

See Routine care, SATA drive guidelines, and disassembly preparation on page 13 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 flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Turn off 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.
22 Chapter 5 Removal and replacement procedures: Small Form Factor

Access panel

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Lift up on the access panel handle (1) then lift the access panel off the computer (2).
To install the access panel, reverse the removal procedure.
Access panel
23

Front bezel

Description
Front bezel
Optical drive bezel blank
1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).
To install the front bezel, reverse the removal procedure.
Access panel on page 23).
24 Chapter 5 Removal and replacement procedures: Small Form Factor

Front bezel security

The front bezel can be locked in place by installing a security screw provided by HP. To install the security screw:
1. Prepare the computer for disassembly (
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
4. Remove the front bezel (
5. Remove one of the five silver 6-32 standard screws located on top of the drive cage.
Access panel on page 23).
Front bezel on page 24).
Preparation for disassembly on page 22).
Front bezel security
25
6. Install the security screw through the middle front bezel release tab to secure the front bezel in
place.
26 Chapter 5 Removal and replacement procedures: Small Form Factor

Bezel blanks

On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need to be removed before installing a drive. To remove a bezel blank:
1. Remove the access panel (
2. Remove the front bezel (
3. To remove a 3.5-inch bezel blank, press inward on the five retaining tabs (1) and pull the blank
off the front bezel (2).
To remove a slim optical drive bezel blank, press the two retaining tabs that hold the bezel blank in place towards the outer right edge of the bezel (3) and slide the bezel blank back and to the right to remove it (4).
Access panel on page 23).
Front bezel on page 24).
4. Replace the front bezel.
NOTE: After removing the slim optical drive bezel blank and installing a slim optical drive, you can
install an optional bezel trim piece (available from HP) that surrounds the front of the slim optical drive.
Bezel blanks
27

Memory

Description
8-GB, PC3-12800
4-GB, PC3-12800
2-GB, PC3-12800
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3­SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to four 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 configured in a high­performing dual channel mode.

DDR3-SDRAM DIMMs

For proper system operation, the DDR3-SDRAM DIMMs must be:
industry-standard 240-pin
unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant
1.35 volt or 1.5 volt DDR3/DDR3L-SDRAM DIMMs
The DDR3-SDRAM DIMMs must also:
support CAS latency 11 DDR3 1600 MHz (11-11-11 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 four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel B. Sockets DIMM3 and DIMM4 operate in memory channel A.
28 Chapter 5 Removal and replacement procedures: Small Form Factor
The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior
graphics performance.
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 total memory capacity of
the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The technology and device width can vary between the channels. For example, if Channel A is populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system will operate in dual channel mode.
The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is
not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 2-GB DIMM, and three 1-GB DIMMs, Channel A should be populated with the 2-GB DIMM and one 1-GB DIMM, and Channel B should be populated with the other two 1-GB DIMMs. With this configuration, 4-GB will run as dual channel and 1-GB will run as single channel.
In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

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 briefly 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 22).
2. Remove the access panel (
Access panel on page 23).
3. Rotate up the internal drive bay housing to access the memory module sockets on the system
board.
Memory
29
4. 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.
Populate the black DIMM sockets before the white DIMM sockets.
For maximum performance, populate the sockets so that the memory capacity is spread as equally as possible between Channel A and Channel B. Refer to
Populating DIMM sockets on page 28 for
more information.
5. 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).
6. Repeat steps 4 and 5 to install any additional modules.
The computer should automatically recognize the additional memory the next time you turn on the computer.
30 Chapter 5 Removal and replacement procedures: Small Form Factor

Expansion card

Description
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB
AMD Radeon HD8490 PCIe x16 graphics card, 1 GB
AMD Radeon HD8450 PCIe x16 graphics card, 1 GB
HP WLAN 802.11 a/b/g/n 2x2 PCIe module
Intel PRO/1000 single port GbE NIC, includes bracket
The computer has two PCI Express x1 expansion slots, one PCI Express x16 expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot.
NOTE: The PCI Express slots support only low profile cards.
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slot.
For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16 slot that is NOT downshifted to a x4.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (
Preparation for disassembly on page 22).
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
Access panel on page 23).
4. Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
Expansion card
31
5. Release the slot cover retention latch that secures the slot covers by lifting the green tab on the
latch and rotating the latch to the open position.
6. 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 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.
32 Chapter 5 Removal and replacement procedures: Small Form Factor
b. 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 (1) then away from the inside of the chassis to release it from the chassis frame (2). Be sure not to scrape the card against the other components.
c. 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 then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components.
7. Store the removed card in anti-static packaging.
Expansion card
33
8. 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.
9. 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 firmly on the card so that the whole connector
seats properly in the expansion card slot.
10. Rotate the slot cover retention latch back in place to secure the expansion card.
34 Chapter 5 Removal and replacement procedures: Small Form Factor
11. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
12. Reconfigure the computer, if necessary.

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 downshifted
to a x4
2 PCI Express x1 X1PCIEXP2 black Expansion Card
3 PCI Express x1 X1PCIEXP1 black Expansion Card
4 PCI Express x16 X16PCIEXP black Expansion Card
5 Parallel Port PAR black Parallel Port
6 Serial Port COMB black Serial Port
7 Hood Lock HLCK black Hood Lock
8 Hood Sensor HSENSE white Hood Sensor
9 Battery BAT black Battery
10 DIMM4 (Channel A) DIMM4 white Memory Module
11 DIMM3 (Channel A) DIMM3 black Memory Module
12 DIMM2 (Channel B) DIMM2 white Memory Module
13 DIMM1 (Channel B) DIMM1 black Memory Module
14 Power SATAPWR0 black SATA Drives
X4PCIEXP white Expansion Card
System board connections
35
No. System Board Connector System Board Label Color Component
15 Power PWR white System Board
16 USB 3.0 FRONT USB3.0 blue Front USB 3.0 Ports
17 USB 3.0 MEDIA3.0 black USB 3.0 Device, such as a USB 3.0
18 SATA 3.0 SATA0 dark blue Primary Hard Drive
19 SATA 3.0 SATA1 light blue Any SATA Device other than the
20 SATA 3.0 SATA2 light blue Any SATA Device other than the
21 USB 2.0 MEDIA black USB 2.0 Device, such as a USB 2.0

Drives

Description
Optical drives
Media Card Reader
Primary Hard Drive
Primary Hard Drive
Media Card Reader
DVD±RW drive
Hard drives
2 TB, 7200 rpm hard drive
1 TB hard drive, hybrid SSD, 2.5-inch hard drive
1 TB, 10000 rpm hard drive
1 TB, 7200 rpm hard drive
750 GB, 7200 rpm, 2.5-inch hard drive, hybrid SSD, 2.5-inch hard drive
500 GB, 10000 rpm hard drive
500 GB, 7200 rpm hard drive, self-encrypting (SED)
500 GB hard drive, hybrid SSD, 2.5-inch hard drive
256 GB Solid State Drive (SSD), self-encrypting (SED)
128 GB Solid State Drive (SSD)
32 GB mSATA drive, 2.5-inch
32 GB mSATA drive
36 Chapter 5 Removal and replacement procedures: Small Form Factor
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 secondary hard drives and optical drives to one of the light blue SATA connectors on the
system board (labeled SATA1 and SATA2).
Connect a media card reader USB 3.0 cable to the USB connector on the system board labeled
MEDIA3.0.
The power cable for the drives has two branches coming off the system board connector. The first
branch is a dual-headed cable with the first connector (four-wire) routed to the 3.5-inch optional drive bay and the second connector (two-wire) routed to the slim optical drive bay. The second branch is a dual-headed cable with the first connector routed to the 3.5-inch hard drive bay and the second connector routed to the 2.5-inch hard drive bay.
You must install guide screws to ensure the drive will line up correctly in the drive cage and lock in
place. HP has provided four extra 6-32 standard guide screws installed on the top of the drive bay. The 6-32 standard guide screws are required for a media card reader or a secondary hard drive installed in the 3.5-inch optional drive bay. M3 isolation mounting guide screws for 2.5-inch hard drives are not provided. If you are replacing a drive, remove the guide screws from the old drive and install them in the new drive.
There are a total of five extra silver 6-32 standard screws. One is used for bezel security (1) (see Front
bezel security on page 25 for more information). The other four are used as guide screws for a media
card reader or a secondary hard drive in the 3.5-inch optional drive bay (2).
Drives
37
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 off 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 fields 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 Slim optical drive bay
2 3.5-inch internal hard drive bay
3 3.5-inch drive bay for optional drives (media card reader shown)
4 2.5-inch internal hard drive bay
NOTE: The drive configuration on your computer may be different than the drive
configuration shown above.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
38 Chapter 5 Removal and replacement procedures: Small Form Factor

Removing a 3.5-inch device

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 22).
2. Remove the access panel (
3. Remove the front bezel (
4. Rotate the drive cage to its upright position.
5. Disconnect the drive cables from the rear of the drive, or, if you are removing a media card
reader, disconnect the USB cable from the system board as indicated in the following illustration.
6. Press inward on the release lever at the rear of the drive (1) and slide the drive out of the rear of
the drive bay (2).
Access panel on page 23).
Front bezel on page 24).
Drives
39

Installing a 3.5-inch device

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Remove the front bezel (
a bezel blank, remove the bezel blank. See
4. Install 6-32 guide screws in the holes on each side of the drive.
NOTE: HP has supplied four extra 6-32 guide screws on top of the drive cage. Refer to Drives
on page 36 for an illustration of the extra guide screws location.
When replacing a drive, transfer the four 6-32 guide screws from the old drive to the new one.
Access panel on page 23).
Front bezel on page 24). If you are installing a drive in a bay covered by
Bezel blanks on page 27 for more information.
5. Rotate the drive cage to its upright position.
6. Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until
the drive snaps into place.
40 Chapter 5 Removal and replacement procedures: Small Form Factor
7. If installing a USB 3.0 media card reader, connect the USB cable from the media card reader to
the USB 3.0 connector on the system board labeled MEDIA3.0.
NOTE: Refer to System board connections on page 35 for an illustration of the system board
drive connectors.
8. Rotate the drive cage back down to its normal position.
CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.
Drives
41

Removing a 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 22).
2. Remove the access panel (
3. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive, push the
green release latch on the right rear side of the drive toward the center of the drive (3), then slide the drive forward and out of the bay through the front bezel (4).
CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to
avoid damaging the cable.
Access panel on page 23).
42 Chapter 5 Removal and replacement procedures: Small Form Factor

Installing a slim optical drive

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
4. Remove the front bezel (
a bezel blank, then remove the bezel blank. See
5. Before the new optical drive can be used, the release latch must be attached.
a. Peel the backing off the adhesive on the release latch.
b. Without allowing the release latch to touch the optical drive, carefully align the holes on the
release latch with the pins on the side of the optical drive. Make sure the release latch is oriented properly.
c. Insert the pin at the front of the optical drive into the hole at the end of the release latch, and
press firmly.
d. Insert the second pin, and press the entire release latch firmly to fasten the latch securely to
the optical drive.
Access panel on page 23).
Front bezel on page 24) if you are installing a drive in a bay covered by
Bezel blanks on page 27 for more information.
Drives
43
6. Slide the optical drive through the front bezel all the way into the bay so that it locks in place (1),
then connect the power cable (2) and data cable (3) to the rear of the drive.
7. Connect the opposite end of the data cable to one of the light blue SATA connectors on the system
board.
NOTE: Refer to System board connections on page 35 for an illustration of the system board
drive connectors.
8. Replace the front bezel if it was removed.
NOTE: An optional bezel trim piece that surrounds the front of the optical drive is available from
HP. Install the bezel trim piece in the front bezel before installing the front bezel.

Removing and replacing a 3.5-inch 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 22).
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
4. Disconnect the power cable and data cable from the back of the hard drive.
Access panel on page 23).
44 Chapter 5 Removal and replacement procedures: Small Form Factor
5. Pull the release lever next to the rear of the hard drive outward (1). While pulling the release lever
out, slide the drive back until it stops, then lift the drive up and out of the bay (2).
6. To install a hard drive, you must transfer the silver and blue isolation mounting guide screws from
the old hard drive to the new hard drive.
Drives
45
7. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the
bay, then slide it forward until it stops and locks in place.
8. Connect the power cable and data cable to the back of the hard drive.
NOTE: The data cable for the primary hard drive must be connected to the dark blue connector
labeled SATA0 on the system board to avoid any hard drive performance problems.
9. Replace the access panel.
10. If the computer was on a stand, replace the stand.
11. Reconnect the power cord and turn on the computer.
12. Lock any security devices that were disengaged when the access panel was removed.
46 Chapter 5 Removal and replacement procedures: Small Form Factor

Removing a 2.5-inch hard drive

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Rotate the drive cage to its upright position.
4. Disconnect the power cable and data cable from the back of the hard drive.
5. Pull outward on the release lever at the rear of the drive (1) then slide the drive back until it stops
and pull it down and out of the drive bay (2).
Access panel on page 23).

Installing a 2.5-inch hard drive

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. If the computer is on a stand, remove the computer from the stand.
3. Remove the access panel (
Access panel on page 23).
Drives
47
4. Install four black and blue M3 isolation mounting guide screws (two on each side of the drive).
NOTE: M3 metric isolation mounting guide screws can be purchased from HP.
When replacing a drive, transfer the four M3 isolation mounting guide screws from the old drive to the new one.
5. Rotate the drive cage to its upright position.
6. Align the guide screws on the drive with the J-slots on the sides of the drive bay. Press the drive up
into the drive bay then slide it forward until it locks in place.
7. Connect the power cable and data cable to the back of the hard drive.
NOTE: If the 2.5-inch hard drive is the primary drive, connect the data cable to the dark blue
SATA connector labeled SATA0 on the system board. If it is a secondary drive, connect the data cable to one of the light blue SATA connectors on the system board.
8. Rotate the drive cage back down to its normal position.
CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.
48 Chapter 5 Removal and replacement procedures: Small Form Factor

Power supply

Description
Power supply, 92% efficient
Power supply, 90% efficient
Power supply, standard
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 and a release lever inside of the chassis.
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.
1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
Access panel on page 23).
3. Rotate the drive cage to the upright position.
4. Disconnect all power cables from the following system board connectors:
PWRCPU
PWRCMD
PWR
Power supply
49
5. Release the power supply cables from the cable retaining clip under the drive cage.
50 Chapter 5 Removal and replacement procedures: Small Form Factor
6. From the outside, rear of the computer, remove the three Torx screws that secure the power supply
to the rear of the chassis.
7. From the inside of the chassis, press the release button at the front of the power supply (1).
8. Slide the power supply forward (2), and then lift it out of the chassis (3).
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
51

Fan duct

The fan duct sits between the front fan and the heat sink.
1. Prepare the computer for disassembly (
2. Remove the access panel (
3. Rotate the fan duct upward.
4. Pull the duct away from the chassis to disengage the clips on the duct from the chassis.
Access panel on page 23).
Preparation for disassembly on page 22).
To install the fan duct, reverse the removal procedure.
52 Chapter 5 Removal and replacement procedures: Small Form Factor

Smart Cover Lock (solenoid lock)

NOTE: The Smart Cover Lock is an optional feature included on some models only.
The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position.
If you enable the Smart Cover Lock and cannot enter your password to disable the lock, you will need a Smart Cover FailSafe Key to open the computer cover. You will need the key to access the internal computer components in any of the following circumstances:
Power outage
Startup failure
PC component (for example, processor or power supply) failure
Forgotten password
NOTE: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared; order this
key before you need it.
To obtain a FailSafe Key:
Contact an authorized HP reseller or service provider. Order PN 166527-001 for the wrench-style
key or PN 166527-002 for the screwdriver bit key.
Refer to the HP Web site (
Call the appropriate number listed in the warranty.
The solenoid lock is mounted to the back of the computer. Remove it using one security screw on the outside of the computer.
1. Prepare the computer for disassembly (
2. Remove the access panel (
http://www.hp.com) for ordering information.
Preparation for disassembly on page 22).
Access panel on page 23).
Smart Cover Lock (solenoid lock)
53
3. From the outside, rear side of the chassis, remove the silver security screw that secures the
solenoid lock to the chassis.
4. From the inside of the chassis, disconnect the cable (1) from the system board connector labeled
HLOCK.
5. Remove the solenoid lock from the chassis (2).
To install the solenoid lock, reverse the removal procedure.
Refer to the following image for the location of the slots on the back of the chassis in which to install the solenoid lock. When installing, insert the top tabs into the top slots, and then rotate the lock downward. Then install the security screw on the outside of the computer. Plug the connector into the system board connector.
54 Chapter 5 Removal and replacement procedures: Small Form Factor
Smart Cover Lock (solenoid lock)
55

Hood sensor

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Disconnect the cable from the system board connector labeled HSENSE (1).
4. Using a tool, remove the sensor from the slot by pushing it into the computer to remove it (2).
Access panel on page 23).
To install the hood sensor, reverse the removal procedure.
56 Chapter 5 Removal and replacement procedures: Small Form Factor

Cable routing

Use the following image to determine proper cable routing in the Small Form Factor computer.
Cable routing
57

Front I/O assembly

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Remove the front bezel (
4. Rotate the drive cage to its upright position.
5. Disconnect the cables from the system board as follows:
Yellow connector labeled FRONT_USB
Black connector labeled MEDIA 3.0
Blue connector labeled FRONT AUD
Access panel on page 23).
Front bezel on page 24).
58 Chapter 5 Removal and replacement procedures: Small Form Factor
6. Remove the cables from the cable clip under the drive cage.
7. Remove the Torx T15 screw (1) that secures the assembly to the front of the chassis.
8. Press the tab on the right side of the assembly (2) to disengage it from the chassis.
9. Push the assembly into the chassis (3), and remove it from the chassis.
To install the front I/O assembly, reverse the removal procedure.
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. See
Cable routing on page 57 for proper cable placement.
Front I/O assembly
59

Power switch assembly

1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
3. Remove the front bezel (
4. Rotate the drive cage to its upright position.
5. Disconnect the cable from the system board connector labeled PB/LED.
Access panel on page 23).
Front bezel on page 24).
6. Remove the cable from the cable clip under the drive cage.
7. From the inside of the chassis, press down on the tab on the top of the power switch (1) to
disengage the power switch from the chassis.
60 Chapter 5 Removal and replacement procedures: Small Form Factor
8. Pull the power switch out the front of the chassis (2), while routing the cable through the hole in
the chassis.
To install the power switch assembly, reverse the removal procedure.
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. See
Cable routing on page 57 for proper cable placement.
Power switch assembly
61

Speaker

The speaker is attached to the front of the chassis under the rotating drive cage.
1. Prepare the computer for disassembly (
2. Remove the access panel (
3. Remove the front bezel (
4. Rotate the drive cage to its upright position.
5. Disconnect the speaker wire from the white system board connector labeled SPKR.
6. Remove the two Torx screws that secure the speaker to the chassis.
Access panel on page 23).
Front bezel on page 24).
Preparation for disassembly on page 22).
7. Lift the speaker from the inside of the chassis to remove it.
To install the speaker, reverse the removal procedures.
62 Chapter 5 Removal and replacement procedures: Small Form Factor

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 (
2. Remove the access panel (
3. Remove the fan duct (
4. Loosen the four captive Torx T15 screws that secure the fan sink to the system board tray.
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.
Access panel on page 23).
Fan duct on page 52).
Preparation for disassembly on page 22).
Fan sink
63
5. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then lift the
heat sink from atop the processor (2).
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.

Processor

Description
Intel Core i7 processor (includes thermal material)
4770, 3.4 GHz, 8-MB L3 cache, 86W
Intel Core i5 processors (include thermal material)
4670, 3.4 GHz, 6-MB L3 cache, 86W
4570, 3.2 GHz, 6-MB L3 cache, 86W
1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
Access panel on page 23).
3. Remove the fan duct (
4. Remove the fan sink (
Fan duct on page 52).
Fan sink on page 63).
64 Chapter 5 Removal and replacement procedures: Small Form Factor
5. Rotate the locking lever to its full open position (1).
6. Raise and rotate the microprocessor retainer to its fully open position (2).
7. 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
65

System board

Description
System board for use in models without Windows 8 (includes thermal material)
System board for use in models with Windows 8 Standard (includes thermal material)
System board for use in models with Windows 8 Professional (includes thermal material)
System board for use in models with NetClone (includes thermal material)
1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the access panel (
Access panel on page 23).
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:
Memory modules (
Expansion cards (
Fan sink (
Processor (
Fan sink on page 63)
Processor on page 64)
4. Remove the fan duct from the chassis (
Memory on page 28)
Expansion card on page 31)
Fan duct on page 52).
5. Rotate the drive cage to its upright position.
6. Disconnect all data and power cables from the system board.
7. Remove the eight Torx screws (1) that secure the system board to the chassis.
66 Chapter 5 Removal and replacement procedures: Small Form Factor
8. Slide the system board toward the front of the chassis to disengage the connectors (2), and then
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
67

System board callouts

Use the following image and table to locate components on the system board.
Sys Bd Label Sys Bd
Connector
X4PCIEXP PCI Express x16
downshifted to a x4
X1PCIEXP2 PCIe x1 slot Black PB/LED Front power switch
X1PCIEXP1 PCIe x1 slot Black PWRCMD Power connector White
X16PCIEXP PCIe x16 slot Black SATAPWR0 SATA drive power
Color Sys Bd Label Sys Bd
White DIMM1 Memory socket
68 Chapter 5 Removal and replacement procedures: Small Form Factor
Color
Connector
Black
Channel B
Black
connector
White
connector
IN/OUT Headphone/
microphone jacks
Black PWR System board
power connector
White
USB USB 3.0 and USB
2.0 ports
VGA/COMA Display connector/
serial port
DISPLAYPORT DisplayPort
connector
RJ45/USB Network jack/USB
2.0 ports
PS2 Mouse/keyboard
connectors
PAR Parallel port
connector
COMB Serial port
connector
PWRCPU Power connector White FRONT USB Front I/O USB
XU1 Processor socket Silver PSWD System password
Black FRONTUSB3.0 Front USB 3.0 port
connector
Black SPKR Speaker connector White
Silver MEDIA3.0 USB 3.0 Device,
such as a USB 3.0 Media Card Reader
Silver SATA0 Primary hard drive
connector
Green/ purple
Black SATA2 Any SATA Device
Black MEDIA USB 2.0 Device,
SATA1 Any SATA Device
other than the Primary Hard Drive
other than the Primary Hard Drive
such as a USB 2.0 Media Card Reader
connector
header/jumper
Blue
Black
Dark blue
Light blue
Light blue
Black
Yellow
Black/ green
CPUFAN Processor fan
connector
CLINK C-Link connector Black XBT RTC battery socket Black
DIMM4 Memory socket –
Channel A
DIMM3 Memory socket –
Channel A
DIMM2 Memory socket –
Channel B
White CMOS CMOS reset button Yellow
White HSENSE Hood sensor
connector
Black HLCK Hood lock
connector
White FRONT AUD Front I/O asseembly
audio connector
White
Black
Blue
System board callouts
69

Changing from desktop to tower configuration

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 (
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.
Preparation for disassembly on page 22).
NOTE: Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer remains
clear and free of obstructions.
70 Chapter 5 Removal and replacement procedures: Small Form Factor

6 Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Use Computer Setup (F10) Utility to do the following:
Change factory default settings.
Set the system date and time.
Set, view, change, or verify the system configuration, 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 flash media
devices.
Enable Quick Boot, which is faster than Full Boot but does not run all of the diagnostic tests run
during a Full Boot. You can set the system to:
always Quick Boot (default);
periodically Full Boot (from every 1 to 30 days); or
always Full Boot.
Select Post Messages Enabled or Disabled to change the display status of Power-On Self-Test
(POST) messages. Post Messages Disabled suppresses most POST messages, such as memory count, product name, and other non-error text messages. If a POST error occurs, the error is displayed regardless of the mode selected. To manually switch to Post Messages Enabled during POST, press any key (except F1 through F12).
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 identification 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 a setup password that controls access to the Computer Setup (F10) Utility and the settings
described in this section.
Secure integrated I/O functionality, including the serial, USB, or parallel ports, audio, or
embedded NIC, so that they cannot be used until they are unsecured.
Computer Setup (F10) Utilities
71
Enable or disable removable media boot ability.
Solve system configuration errors detected but not automatically fixed during the Power-On Self-
Test (POST).
Replicate the system setup by saving system configuration information on a USB device and
restoring it on one or more computers.
Execute self-tests on a specified ATA hard drive (when supported by drive).
Enable or disable DriveLock security (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 different 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 five headings appears in the Computer Setup Utilities menu: File, Storage, Security,
Power, and Advanced.
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 File > Save Changes and Exit.
If you have made changes that you do not want applied, select Ignore Changes and
Exit.
To reset to factory settings or previously saved default settings (some models), select Apply
Defaults and Exit. This option will restore the original factory system defaults.
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 CMOS could become corrupted. It is safe to turn off the computer only after exiting the F10 Setup screen.
72 Chapter 6 Computer Setup (F10) Utility

Computer Setup—File

NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 6-1 Computer Setup—File
Option Description
System Information Lists:
Product name
SKU number
Processor type/speed/stepping
Cache size (L1/L2/L3) (dual core processors have this listed twice)
Installed memory size/speed, number of channels (single or dual) (if applicable)
Integrated MAC address for embedded, enabled NIC (if applicable)
System BIOS (includes family name and version)
Chassis serial number
Asset tracking number
ME firmware version
ME Management mode
About Displays copyright notice.
Set Time and Date Allows you to set system time and date.
Flash System ROM Allows you to update the system ROM with a BIOS image file located on removable media.
Replicated Setup Save to Removable Media
Saves system configuration to a formatted USB flash media device.
Restore from Removable Media
Restores system configuration from a USB flash media device.
Default Setup Save Current Settings as Default
Saves the current system configuration settings as the default.
Restore Factory Settings as Default
Restores the factory system configuration settings as the default.
Apply Defaults and Exit
Ignore Changes and Exit
Applies the currently selected default settings and clears any established passwords.
Exits Computer Setup without applying or saving any changes.
Save Changes and Exit
Saves changes to system configuration or default settings and exits Computer Setup.
Computer Setup (F10) Utilities
73

Computer Setup—Storage

NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 6-2 Computer Setup—Storage
Option Description
Device Configuration
Lists all installed BIOS-controlled storage devices.
When a device is selected, detailed information and options are displayed. The following options may be presented:
Hard Disk: Size, model, firmware version, serial number, connector color.
CD-ROM: Model, firmware version, serial number, connector color (not included for USB CD-
ROM).
SMART (ATA disks only)
Diskette: Model and firmware version.
NOTE: Displays for USB diskette drives.
74 Chapter 6 Computer Setup (F10) Utility
Table 6-2 Computer Setup—Storage (continued)
Storage Options SATA Emulation
Allows you to choose how the SATA controller and devices are accessed by the operating system. There are three supported options: IDE, RAID, and AHCI (default).
CAUTION: SATA emulation changes may prevent access to existing hard drive data and
degrade or corrupt established volumes.
IDE - This is the most backwards-compatible setting of the three options. Operating systems usually do not require additional driver support in IDE mode.
RAID - Allows DOS and boot access to RAID volumes. Use this mode with the RAID device driver loaded in the operating system to take advantage of RAID features.
AHCI (default option) - Allows operating systems with AHCI device drivers loaded to take advantage of more advanced features of the SATA controller.
NOTE: The RAID/AHCI device driver must be installed prior to attempting to boot from a RAID/
AHCI volume. If you attempt to boot from a RAID/AHCI volume without the required device driver installed, the system will crash (blue screen). RAID volumes may become corrupted if they are booted to after disabling RAID.
Removable Media Boot
Enables/disables ability to boot the system from removable media. Default is enabled.
Boot Order Allows you to:
EFI Boot Sources: Specify the order in which EFI 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. Each device on the list may be individually excluded from or included for consideration as a bootable operating system source.
EFI boot sources always have precedence over legacy boot sources.
Legacy Boot Sources: 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. Each device on the list may be individually excluded from or included for consideration as a bootable operating system source.
Specify the order of attached hard drives. The first 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. To remove the device from
consideration as a bootable device, press F5.
You can use F5 to disable individual boot items, as well as disable EFI boot and/or legacy boot.
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 specified in Boot Order, restart the computer and press Esc (to access the boot menu) and then F9 (Boot Order), or only F9 (skipping the boot 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.
Computer Setup (F10) Utilities
75

Computer Setup—Security

NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 6-3 Computer Setup—Security
Option Description
Setup Password Allows you to set and enable a setup (administrator) password.
NOTE: If the setup password is set, it is required to change Computer Setup options, flash the
ROM, and make changes to certain plug and play settings under Windows.
Power-On Password
Password Options
(This selection appears only if a power-on password or setup password is set.)
Allows you to set and enable a 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.
Allows you to enable/disable:
Lock Legacy Resources (determines whether or not Windows Device Manager is allowed to
change resource settings for serial and parallel ports).
Stringent security (enabling the stringent password disables the ability to reset the password by
moving the jumper on the system board). Default is disabled.
CAUTION: If you enable the stringent security feature and you forget the setup password or
the power-on password, the computer is inaccessible and can no longer be used.
If you lose or forget the password, the system board must be replaced. This scenario is not covered under warranty.
To prevent the computer from becoming permanently unusable, record your configured setup password or power-on password in a safe place away from your computer. Without these passwords, the computer cannot be unlocked.
Setup Browse Mode (appears if a setup password is set) (allows viewing, but not changing,
the F10 Setup Options without entering setup password). Default is enabled.
Password prompt on F9 & F12 (requires setup password to use these boot functions). Default is
enabled.
Network Server Mode. Default is disabled.
Smart Cover Allows you to:
Lock/unlock the Cover Lock.
Set the Cover Removal Sensor to Disable/Notify User/Setup Password.
NOTE: Notify User alerts the user that the sensor has detected that the cover has been removed.
Setup Password requires that the setup password be entered to boot the computer if the sensor detects that the cover has been removed.
76 Chapter 6 Computer Setup (F10) Utility
Table 6-3 Computer Setup—Security (continued)
Device Security Allows you to set Device Available/Device Hidden (default is Device Available) for:
Embedded security device
System audio
USB controller (varies by model)
Network controller
NOTE: You must disable AMT before trying to hide the network controller.
Serial port
Parallel port
SATA ports (varies by model)
USB Security Allows you to set Enabled/Disabled (default is Enabled) for:
Front USB Ports
Rear USB Ports
Accessory USB Ports
Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled.
Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network
server. (Feature available on NIC models only; the network controller must be either a PCI expansion card or embedded on the system board.) Default is enabled.
System IDs Allows you to set:
Asset tag (18-byte identifier), a property identification number assigned by the company to the
computer.
Ownership tag (80-byte identifier) displayed during POST.
Universal Unique Identifier (UUID) number. The UUID can only be updated if the current
chassis serial number is invalid. (These ID numbers are normally set in the factory and are used to uniquely identify the system.)
Keyboard locale setting for System ID entry.
Computer Setup (F10) Utilities
77
Table 6-3 Computer Setup—Security (continued)
Master Boot Record Security
Enables/disables Master Boot Record (MBR) security.
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.
When MBR Security is enabled, the BIOS prevents any changes being made to the MBR of the current bootable disk while in MS-DOS or Windows Safe Mode.
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 modified
the MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved MBR if you are confident that the current bootable disk's MBR has been corrupted or infected with a virus.
78 Chapter 6 Computer Setup (F10) Utility
Table 6-3 Computer Setup—Security (continued)
System Security
(these options are hardware dependent)
Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default is enabled.
SVM CPU Virtualization (enable/disable). Controls the virtualization features of the processor. Changing this setting requires turning the computer off and then back on. Default is disabled.
Virtualization Technology (VTx) (enable/disable) - Controls the virtualization features of the processor. Changing this setting requires turning the computer off and then back on. Default is disabled.
Virtualization Technology Directed I/O (VTd) (enable/disable) - Controls virtualization DMA remapping features of the chipset. Changing this setting requires turning the computer off and then back on. Default is disabled.
Trusted Execution Technology (enable/disable) - Controls the underlying processor and chipset features needed to support a virtual appliance. Changing this setting requires turning the computer off and then back on. Default is disabled. To enable this feature you must enable the following features:
Embedded Security Device Support
Virtualization Technology
Virtualization Technology Directed I/O
Embedded Security Device (enable/disable) - Permits activation and deactivation of the Embedded Security Device.
NOTE: To configure the Embedded Security Device, a Setup password must be set.
Reset to Factory Settings (Do not reset/Reset) - Resetting to factory defaults will erase all
security keys and leave the device in a disabled state. Changing this setting requires that you restart the computer. Default is Do not reset.
CAUTION: The embedded security device is a critical component of many security schemes.
Erasing the security keys will prevent access to data protected by the Embedded Security Device. Choosing Reset to Factory Settings may result in significant data loss.
Measure boot variables/devices to PCR1 - Typically, the computer measures the boot path and
saves collected metrics to PCR5 (a register in the Embedded Security Device). Bitlocker tracks changes to any of these metrics, and forces the user to re-authenticate if it detects any changes. Enabling this feature lets you set Bitlocker to ignore detected changes to boot path metrics, thereby avoiding re-authentication issues associated with USB keys inserted in a port. Default is enabled.
Computer Setup (F10) Utilities
79
Table 6-3 Computer Setup—Security (continued)
System Security
(continued)
DriveLock Security Allows you to assign or modify a master or user password for hard drives. When this feature is
OS management of Embedded Security Device (enable/disable) - This option allows the user to limit OS control of the Embedded Security Device. Default is enabled. This option is automatically disabled if Trusted Execution Technology is enabled.
Reset of Embedded Security Device through OS (enable/disable) - This option allows the user
to limit the operating system ability to request a Reset to Factory Settings of the Embedded Security Device. Default is disabled.
NOTE: To enable this option, a Setup password must be set.
No PPI provisioning (Windows 8 only) - This option lets you set Windows 8 to bypass the PPI
(Physical Presence Interface) requirement and directly enable and take ownership of the TPM on first boot. You cannot change this setting after TPM is owned/initialized, unless the TPM is reset. Default is disabled for non-Windows 8 systems, and enabled for Windows 8.
Allow PPI policy to be changed by OS. Enabling this option allows the operating system to
execute TPM operations without Physical Presence Interface. Default is disabled.
NOTE: To enable this option, a Setup password must be set.
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.
Secure Boot Configuration
This is a feature of Windows 8.
Legacy Support—Enable/Disable. Allows you to turn off all legacy support on the computer,
including booting to DOS, running legacy graphics cards, booting to legacy devices, and so on. If set to disable, legacy boot options in Storage > Boot Order are not displayed. Default is enabled.
Secure Boot—Enable/Disable. Allows you to make sure an operating system is legitimate
before booting to it, making Windows resistant to malicious modification from preboot to full OS booting, preventing firmware attacks. UEFI and Windows Secure Boot only allow code signed by pre-approved digital certificates to run during the firmware and OS boot process. Default is disabled, except for Windows 8 systems which have this setting enabled. Secure Boot enabled also sets Legacy Support to disabled.
Key Management—This option lets you manage the custom key settings.
Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded
custom boot keys. Default is Don't Clear.
Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify
the contents of the secure boot signature databases and the platform key (PK) that verifies kernels during system start up, allowing you to use alternative operating systems.
80 Chapter 6 Computer Setup (F10) Utility
Table 6-3 Computer Setup—Security (continued)
Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f
keys to access items before the operating system loads. Default is disabled.
NOTE: If Windows 8 detects a serious error, it will interrupt the boot process automatically
and display advanced boot options.
From Windows 8, you can press Shift and select Restart to access the screen that lets you boot to a device or troubleshoot your computer.

Computer Setup—Power

NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 6-4 Computer Setup—Power
Option Description
Selecting HP Keys causes the computer boot using the preloaded HP-specific boot keys. Default is HP Keys.
OS Power Management
Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.
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.
Unique Sleep State Blink Rates—Enable/Disable. This feature is designed to provide a visual
indication of what sleep state the system is in. Each sleep state has a unique blink pattern. Default is disabled.
NOTE: For Windows 8 systems with Fast Boot support, a normal shutdown goes to the S4
state, not the S5 state.
S0 (On) = Solid white LED.
S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(white LED) — repeated cycles of 3 blinks and a pause.
S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(white LED) — repeated cycles of 4 blinks and a pause.
S5 (Soft Off) = LED is off.
Computer Setup (F10) Utilities
81
Table 6-4 Computer Setup—Power (continued)
Hardware Power Management
Thermal Fan idle mode—This bar graph controls the minimum permitted fan speed.
SATA Power Management – Enables or disables SATA bus and/or device power management. Default is enabled.
S5 Maximum Power Savings – Turns off power to all nonessential hardware when system is off to meet EUP Lot 6 requirement of less than 0.5 Watt power usage. Default is disabled.
PCI Express x16 Slot 1 – Sets Active State Power Management (ASPM) of the bus. ASPM lets you set lower power modes that activate when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM Disabled.
PCI Express x1 Slot 1 – Sets Active State Power Management (ASPM) of the bus. ASPM lets you set lower power modes that activate when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM Disabled.
Network Controller – Sets ASPM of the bus. ASPM lets you set lower power modes that activate when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM Disabled.
USB 3.0 Controller – Sets ASPM of the bus. ASPM lets you set lower power modes that activate when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM Disabled.
NOTE: This setting only changes the minimum fan speed. The fans are still automatically
controlled.
82 Chapter 6 Computer Setup (F10) Utility

Computer Setup—Advanced

NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 6-5 Computer Setup—Advanced (for advanced users)
Option Heading
Power-On Options Allows you to set:
POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days).
QuickBoot (default) = Do not clear memory or perform a memory test.
FullBoot = Memory test (count) on cold boot. Clears memory on all boots.
Clear Memory = No memory count on cold boot. Clears memory on all boots.
FullBoot Every x Days = Memory count on 1st cold boot on or after the xth day. No more
memory counts until 1st cold boot on or after x days. Clears memory on all boots.
POST messages (enable/disable). Enabling this feature will cause the system to display POST
error messages, which are error messages displayed on the monitor during the Power On Self Test if the BIOS encounters some kind of problem while starting the PC. A POST error message will only display on screen if the computer is capable of booting this far. If the POST detects an error before this point, a beep code is generated instead. Default is disabled.
Press the ESC key for Startup Menu (Enable/Disable). This feature controls the display of the
text “Press the ESC key for Startup Menu” during POST. This text does not display on Windows 8 systems with Fast Boot support. Other text also will not display (for example, Ownership Tag). Default is enabled.
Option ROM Prompt (enable/disable). Enabling this feature will cause the system to display a
message before loading option ROMs. Default is enabled.
After Power Loss (off/on/previous state). Default is Power off. Setting this option to:
Power off—causes the computer to remain powered off 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 you turn off power to the computer using the switch on a power strip, you will not be
able to use the suspend/sleep feature or the Remote Management features.
POST Delay (in seconds). Enabling this feature will add a user-specified delay to the POST
process. This delay is sometimes needed for hard disks on some PCI cards that spin up very slowly, so slowly that they are not ready to boot by the time POST is finished. The POST delay also gives you more time to select F10 to enter Computer (F10) Setup. Default is None.
Remote Wakeup Boot Source (remote server/local hard drive). Default is Local hard drive.
Factory Recovery Boot Support (Enable/Disable). Provides the ability for the BIOS to redirect
the boot to the recovery partition on the user hard drive, if present. Some versions of the recovery software honor the F11 key press even when this feature is disabled by the BIOS. Default is disabled.
Bypass F1 Prompt on Configuration Changes (Enable/Disable). Allows you to set the computer
not to confirm when changes were made. Default is disabled.
Computer Setup (F10) Utilities
83
Table 6-5 Computer Setup—Advanced (for advanced users) (continued)
BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify.
Onboard Devices Allows you to set resources for or disable Legacy devices.
Select the Legacy device's IRQ, DMA, and I/O Range. The settings may not take effect for all operating systems. To hide a device from the operating system, see Security > Device Security.
Bus Options Allows you to enable or disable:
PCI SERR# Generation. Default is enabled.
PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration
space; only needed when more than one graphics controller is installed. Default is disabled.
Device Options Allows you to set:
Printer mode (Bi-Directional, EPP + ECP, Output Only). ECP = Enhanced Capabilities Port, EPP
= Enhanced Parallel Port. Default is EPP+ECP.
Num Lock State at Power-On (off/on). Default is off.
Integrated Video (enable/disable). Use this option to disable the integrated video controller
when another video controller is present in the system. Default is enabled.
Integrated Graphics (Auto/Disable/Force) Use this option to manage integrated (UMA)
graphics memory allocation. The value you choose is allocated permanently to graphics and is unavailable to the operating system. For example, if you set this value to 512M on a system with 2 GB of RAM, the system always allocates 512 MB for graphics and the other 1.5 GB for use by the BIOS and operating system. Default is Auto which sets memory allocation to 512 MB.
If you select Force, the UMA Frame Buffer Size option displays, which lets you set the UMA memory size allocation between 32 MB and 1 GB.
Internal Speaker (does not affect external speakers). Default is enabled.
NIC PXE Option ROM Download (PXE, iSCSI, disabled). The BIOS contains an embedded
NIC option ROM to allow the unit to boot through the network to a PXE server. This is typically used to download a corporate image to a hard drive. The NIC option ROM takes up memory space below 1MB commonly referred to as DOS Compatibility Hole (DCH) space. This space is limited. This F10 option will allow users to disable the downloading of this embedded NIC option ROM thus giving more DCH space for additional PCI cards which may need option ROM space. The default will be to have the NIC option-ROM-enabled. Default is PXE.
SATA RAID Option ROM Download (enable/disable). The BIOS contains an embedded SATA
RAID option ROM for RAID support. This can be temporarily disabled to save DCH space. Note that with the option ROM disabled, users will be unable to boot to hard drives in the system while running in RAID mode. Default is disabled.
Multi-Processor (enable/disable). Use this option to disable multi-processor support under the
OS. Default is enabled.
Hyper threading (enable/disable). Use this option to disable processor hyper-threading.
Turbo Mode (enable/disable). Allows you to enable and disable the Intel Turbo Mode feature,
which allows one core of the system to run at a higher than standard frequency and power if other cores are idle. Default is enabled.
84 Chapter 6 Computer Setup (F10) Utility
Table 6-5 Computer Setup—Advanced (for advanced users) (continued)
VGA Configuration Displayed only if there is an add-in video card in the system. Allows you to specify which VGA
controller will be the “boot” or primary VGA controller.
AMT Configuration Allows you to set:
AMT (enable/disable). Allows you to enable or disable functions of the embedded
Management Engine (ME) such as Active Management Technology (AMT). If set to disable, the Management Engine is set to a temporarily disabled state and will not provide functions beyond necessary system configuration. Default is enabled.
Unconfigure AMT/ME (enable/disable). Allows you to unconfigure any provisioned
management settings for AMT. The AMT settings are restored to factory defaults. This feature should be used with caution as AMT will not be able to provide any set AMT management functions once unconfigured. Default is disabled.
Hide Unconfigure ME Confirmation Prompt (enable/disable). Allows you to set the system to
not display the confirmation to unconfigure ME.
Watchdog Timer (enable/disable). 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. Default is enabled.

Recovering the Configuration Settings

This method of recovery requires that you first perform the Save to Removable Media command with the Computer Setup (F10) Utility before Restore is needed. (See
on page 73 in the Computer Setup—File table.)
NOTE: It is recommended that you save any modified computer configuration settings to a USB flash
media device and save the device for possible future use.
To restore the configuration, insert the USB flash media device with the saved configuration and perform the Restore from Removable Media command with the Computer Setup (F10) Utility.
Computer Setup—File on page 73 in the Computer Setup—File table.)
(See
Computer Setup—File
Recovering the Configuration Settings
85
7 Troubleshooting without
diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specific error messages that may appear on the screen during Power-On
Self-Test (POST) at startup, refer to Appendix A,

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
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.
POST error messages on page 127.
http://www.hp.com/

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
for more information.
Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are
error codes that will help you diagnose the problem. Refer to Appendix A,
on page 127 for more information.
If the screen is blank, plug the monitor into a different 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 different 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.
Computer Setup (F10) Utility on page 71
POST error messages
86 Chapter 7 Troubleshooting without diagnostics
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 Configuration.”
Refer to the comprehensive online technical support at
Refer to
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:
Access the Business Support Center (BSC) at support information, software and drivers, proactive notification, and worldwide community of peers and HP experts.
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly:
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.
Helpful hints on page 87 in this guide.
http://www.hp.com/go/bizsupport for the latest online
http://www.hp.com/support.
http://www.hp.com/go/ispe.
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
files 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.
Helpful hints
87
Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are
error codes that will help you diagnose the problem. Refer to Appendix A,
on page 127 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.
Reconfigure the computer after installing a non-plug and play expansion board or other option.
See
Solving Hardware Installation Problems on page 111 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.
POST error messages
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.
88 Chapter 7 Troubleshooting without diagnostics

Solving general problems

You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
Computer appears locked up and will not turn off when the power button is pressed.
Cause Solution
Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds
Computer will not respond to keyboard or mouse.
Cause Solution
until the computer turns off.
2. Disconnect the power cord from the electrical outlet.
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.
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, from the Start screen, type c, and then select Control Panel from the list of applications.
Solving general problems
89
Cursor will not move using the arrow keys on the keypad.
Cause Solution
The Num Lock key is turned on. Press the Num Lock key. The Num Lock light must be off if you
want to use the arrow keys on the keypad. You can also disable or enable the Num Lock key in Computer Setup at
Advanced > Device Options.
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 affect 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 airflow 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 airflow.
2. Make sure fans are connected and working properly
(some fans only operate when needed).
3. Make sure the processor heat sink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on the
hard drive.
Low on memory. Add more memory.
90 Chapter 7 Troubleshooting without diagnostics
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