Maintenance and Service Guide
HP ProDesk 400 G3 MT Business PC
HP ProDesk 480 G3 MT Business PC
HP ProDesk 490 G3 MT Business PC
© Copyright 2015 HP Development Company,
L.P.
AMD is a trademark of Advanced Micro Devices,
Inc. Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel, Celeron, and Pentium are trademarks of
Intel Corporation in the U.S. and other
countries. Microsoft and Windows are
trademarks of the Microsoft group of
companies.
The information contained herein is subject to
change without notice. The only warranties for
HP products and services are set forth in the
express warranty statements accompanying
such products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable for
technical or editorial errors or omissions
contained herein.
First Edition (November 2015)
Document Part Number: 822843-001
Product notice
This user guide describes features that are
common to most models. Some features may
not be available on your computer.
Not all features are available in all editions of
Windows. This computer may require upgraded
and/or separately purchased hardware, drivers
and/or software to take full advantage of
Windows functionality. Go to
http://www.microsoft.com for details.
Software terms
By installing, copying, downloading, or
otherwise using any software product
preinstalled on this computer, you agree to be
bound by the terms of the HP End User License
Agreement (EULA). If you do not accept these
license terms, your sole remedy is to return the
entire unused product (hardware and software)
within 14 days for a full refund subject to the
refund policy of your seller.
For any further information or to request a full
refund of the price of the computer, please
contact your seller.
This computer may require upgraded and/ or
separately purchased hardware and/or a DVD
drive to install the Windows 7 software and
take full advantage of Windows 7 functionality.
See http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.
Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place
the device directly on your lap or obstruct the device air vents. Use the device only on a hard, at surface. Do
not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs
or clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as
pillows or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible
surface temperature limits dened by the International Standard for Safety of Information Technology
Equipment (IEC 60950-1).
iii
iv Safety warning notice
Table of contents
1 Product features ........................................................................................................................................... 1
Standard conguration features ........................................................................................................................... 1
ProDesk 400 ........................................................................................................................................................... 2
Front panel components ..................................................................................................................... 2
Rear panel components ...................................................................................................................... 3
ProDesk 480 ........................................................................................................................................................... 4
Front panel components ..................................................................................................................... 4
Rear panel components ...................................................................................................................... 5
ProDesk 490 ........................................................................................................................................................... 6
Front panel components ..................................................................................................................... 6
Rear panel components ...................................................................................................................... 7
Serial number location .......................................................................................................................................... 8
2 Illustrated parts catalog ................................................................................................................................ 9
Computer major components ................................................................................................................................ 9
Misc parts ............................................................................................................................................................. 11
Cables ................................................................................................................................................................... 13
PCIe boards .......................................................................................................................................................... 13
Drives ................................................................................................................................................................... 14
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 15
Electrostatic discharge information .................................................................................................................... 15
Generating static ............................................................................................................................... 15
Preventing electrostatic damage to equipment ............................................................................... 16
Personal grounding methods and equipment .................................................................................. 16
Grounding the work area ................................................................................................................... 16
Recommended materials and equipment ........................................................................................ 17
Operating guidelines ........................................................................................................................................... 17
Routine care ......................................................................................................................................................... 18
General cleaning safety precautions ................................................................................................ 18
Cleaning the Computer Case ............................................................................................................. 18
Cleaning the keyboard ....................................................................................................................... 18
Cleaning the monitor ......................................................................................................................... 19
Cleaning the mouse ........................................................................................................................... 19
Service considerations ......................................................................................................................................... 19
Power supply fan ............................................................................................................................... 19
v
Tools and software Requirements .................................................................................................... 19
Screws ............................................................................................................................................... 20
Cables and connectors ...................................................................................................................... 20
Hard Drives ........................................................................................................................................ 20
Lithium coin cell battery .................................................................................................................... 20
SATA hard drives .................................................................................................................................................. 21
SATA hard drive cables ......................................................................................................................................... 21
SATA data cable ................................................................................................................................. 21
SMART ATA drives ................................................................................................................................................ 21
Cable management .............................................................................................................................................. 21
4 Removal and replacement procedures: Microtower ........................................................................................ 23
Preparation for disassembly ............................................................................................................................... 23
Access panel ......................................................................................................................................................... 24
Front bezel ........................................................................................................................................................... 25
Optical drive bezel blank ..................................................................................................................................... 26
Memory ................................................................................................................................................................ 27
DIMMs ................................................................................................................................................ 27
DDR4-SDRAM DIMMs ......................................................................................................................... 27
Populating DIMM sockets (ProDesk 400 and ProDesk 480) ............................................................. 28
Populating DIMM sockets (ProDesk 490) .......................................................................................... 29
Installing DIMMs ................................................................................................................................ 29
Expansion cards ................................................................................................................................................... 31
Drives ................................................................................................................................................................... 34
System board connections (ProDesk 400) ........................................................................................ 37
System board connections (ProDesk 480) ........................................................................................ 38
System board connections (ProDesk 490) ........................................................................................ 39
Drive positions ................................................................................................................................... 40
Removing a 9.5-mm slim optical drive ............................................................................................. 41
Installing a 9.5-mm slim optical drive .............................................................................................. 41
Removing a 3.5-inch hard drive ........................................................................................................ 43
Installing a 3.5-inch hard drive ......................................................................................................... 44
Removing a 2.5-inch hard drive ........................................................................................................ 45
Installing a 2.5-inch hard drive ......................................................................................................... 46
WLAN module ...................................................................................................................................................... 47
RTC battery .......................................................................................................................................................... 48
DisplayPort connector module ............................................................................................................................ 50
Card reader ........................................................................................................................................................... 51
Front I/O assembly ............................................................................................................................................... 52
Power switch assembly ....................................................................................................................................... 54
Fan sink ................................................................................................................................................................ 56
vi
Processor ............................................................................................................................................................. 57
Speaker ................................................................................................................................................................ 58
Fan ........................................................................................................................................................................ 60
Power supply ....................................................................................................................................................... 61
System board ....................................................................................................................................................... 63
HP ProDesk 400 G3 system board callouts ...................................................................................... 63
HP ProDesk 480 G3 system board callouts ...................................................................................... 65
HP ProDesk 490 G3 system board callouts ...................................................................................... 66
5 Computer Setup (F10) Utility ........................................................................................................................ 67
Computer Setup (F10) Utilities ............................................................................................................................ 67
Using Computer Setup (F10) Utilities ................................................................................................ 67
Computer Setup–Main ....................................................................................................................... 69
Computer Setup—Security ............................................................................................................... 71
Computer Setup—Advanced ............................................................................................................. 73
Recovering the Conguration Settings ............................................................................................................... 78
6 Troubleshooting without diagnostics ............................................................................................................ 79
Safety and comfort .............................................................................................................................................. 79
Before you call for technical support .................................................................................................................. 79
Helpful hints ........................................................................................................................................................ 80
Solving general problems .................................................................................................................................... 81
Solving power problems ...................................................................................................................................... 85
Solving hard drive problems ................................................................................................................................ 86
Solving media card reader problems ................................................................................................................... 88
Solving display problems .................................................................................................................................... 89
Solving audio problems ....................................................................................................................................... 94
Solving printer problems ..................................................................................................................................... 96
Solving keyboard and mouse problems .............................................................................................................. 97
Solving Hardware Installation Problems ............................................................................................................. 99
Solving Network Problems ................................................................................................................................ 100
Solving memory problems ................................................................................................................................ 103
Solving CD-ROM and DVD problems .................................................................................................................. 104
Solving USB ash drive problems ..................................................................................................................... 107
Solving front panel component problems ........................................................................................................ 108
Solving Internet access problems ..................................................................................................................... 108
Solving software problems ............................................................................................................................... 110
7 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 111
POST numeric codes and text messages .......................................................................................................... 111
vii
Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 116
8 Password security and resetting CMOS ........................................................................................................ 118
Resetting the password jumper ........................................................................................................................ 118
Clearing and resetting the BIOS ........................................................................................................................ 120
9 Using HP PC Hardware Diagnostics (UEFI) ..................................................................................................... 121
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 121
10 System backup and recovery ..................................................................................................................... 123
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 .............................................................. 123
Creating recovery media and backups ............................................................................................ 123
Restoring and recovering using Windows tools ............................................................................. 123
Using Reset when the system is not responding ......................................................... 124
Recovery using the Windows recovery USB ash drive ............................................... 124
Recovery using Windows operating system media (purchased separately) ............... 125
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 125
Creating recovery media ................................................................................................................. 126
Creating recovery media using HP Recovery Manager (select models only) ............... 126
Creating recovery discs with HP Recovery Disc Creator (select models only) ............. 127
Creating recovery discs .............................................................................. 127
Backing up your information ........................................................................................ 128
System Restore ............................................................................................................................... 128
System Recovery ............................................................................................................................. 129
System Recovery when Windows is responding .......................................................... 129
System Recovery when Windows is not responding .................................................... 130
System Recovery using recovery media (select models only) ..................................... 130
Using HP Recovery Disc operating system discs (select models only) ........................ 131
Appendix A Power cord set requirements ....................................................................................................... 133
General requirements ........................................................................................................................................ 133
Japanese power cord requirements .................................................................................................................. 133
Country-specic requirements .......................................................................................................................... 134
Appendix B Statement of Volatility ................................................................................................................ 135
Appendix C Specications ............................................................................................................................. 136
Index ........................................................................................................................................................... 138
viii
1 Product features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
Standard conguration features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
CAUTION: Several well-known vulnerabilities exist when a computer is in the Sleep state. To prevent an
unauthorized user from accessing data on your computer, even encrypted data, HP recommends that you
always initiate Hibernation instead of Sleep anytime the computer will be out of your physical
possession. This practice is particularly important when you travel with your computer.
Standard conguration features 1
ProDesk 400
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the optical drive bay.
1 Slim Optical Drive (optional) 5 Hard Drive Activity Light
2 Dual-State Power Button 6 USB 3.0 Ports (blue)
3 Microphone Connector 7 Headphone Connector
4 SD Card Reader (optional)
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to Interpreting system validation diagnostic front panel LEDs and
audible codes on page 116 to interpret the code.
2 Chapter 1 Product features
Rear panel components
1 Line-In Audio Connector (blue) 7 USB 3.0 Ports (blue)
2 RJ-45 Network Connector 8 USB 2.0 Ports (black)
3 Serial Connector 9 USB 2.0 Ports with Wake from S4/S5
feature (black)
4 PS/2 Mouse Connector (green) 10 DisplayPort Monitor Connector
5 Power Cord Connector 11 VGA Monitor Connector
6 Line-Out Connector for powered audio devices
(green)
NOTE: An optional second serial port and an optional parallel port are available from HP.
If using a USB keyboard, HP recommends connecting the keyboard to one of the USB 2.0 ports with the wake from S4/S5
feature. The wake from S4/S5 feature is also supported on the PS/2 connectors if enabled in BIOS F10 Setup.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a conguration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
12 PS/2 Keyboard Connector (purple)
ProDesk 400 3
ProDesk 480
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the optical drive bay.
1 Slim Optical Drive (optional) 5 Hard Drive Activity Light
2 Dual-State Power Button 6 USB 3.0 Ports (blue)
3 Microphone Connector 7 Headphone Connector
4 SD Card Reader (optional)
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to Interpreting system validation diagnostic front panel LEDs and
audible codes on page 116 to interpret the code.
4 Chapter 1 Product features
Rear panel components
1 Line-In Audio Connector (blue) 7 Line-Out Connector for powered audio
devices (green)
2 USB 2.0 Ports with Wake from S4/S5 feature
(black)
3 RJ-45 Network Connector 9 USB 3.0 Ports (blue)
4 Serial Connector 10 DVI-D Monitor Connector
5 PS/2 Mouse Connector (green) 11 VGA Monitor Connector
6 Power Cord Connector 12 PS/2 Keyboard Connector (purple)
NOTE: An optional second serial port and an optional parallel port are available from HP.
If using a USB keyboard, HP recommends connecting the keyboard to one of the USB 2.0 ports with the wake from S4/S5
feature. The wake from S4/S5 feature is also supported on the PS/2 connectors if enabled in BIOS F10 Setup.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a conguration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
8 USB 2.0 Ports (black)
ProDesk 480 5
ProDesk 490
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the optical drive bay.
1 Slim Optical Drive (optional) 5 Hard Drive Activity Light
2 Dual-State Power Button 6 USB 3.0 Ports (blue)
3 Microphone Connector 7 Headphone Connector
4 SD Card Reader (optional)
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to Interpreting system validation diagnostic front panel LEDs and
audible codes on page 116 to interpret the code.
6 Chapter 1 Product features
Rear panel components
1 Line-In Audio Connector (blue) 7 Line-Out Connector for powered audio
2 USB 3.0 Ports (blue) 8 USB 3.0 Ports (blue)
devices (green)
3 RJ-45 Network Connector 9 USB 2.0 Ports with Wake from S4/S5
feature (black)
4 Serial Connector 10 DisplayPort Monitor Connector
5 PS/2 Mouse Connector (green) 11 VGA Monitor Connector
6 Power Cord Connector 12 PS/2 Keyboard Connector (purple)
NOTE: An optional second DisplayPort, an optional second serial port, and an optional parallel port are available from HP
and may be included with your model.
If using a USB keyboard, HP recommends connecting the keyboard to one of the USB 2.0 ports with the wake from S4/S5
feature. The wake from S4/S5 feature is also supported on the PS/2 connectors if enabled in BIOS F10 Setup.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a conguration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
ProDesk 490 7
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.
8 Chapter 1 Product features
2 Illustrated parts catalog
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Computer major components
Item Description
(1) Front bezel
For use in all countries and regions except for the People’s Republic of China
For use in the People’s Republic of China
(2) Access panel
(3) Memory modules (PC4,17000, CL15)
Computer major components 9
Item Description
16-GB
8-GB
4-GB
(4) Power supply
300W, Active PFC
300W, Energy Star 5.0
300W, standard
180W, Active PFC
180W, Energy Star 5.0
180W, Energy Star 6.0
180W, standard
* System board (includes replacement thermal material)
* Processor (includes replacement thermal material)
Intel Core i7-6700 processor
Intel Core i5-6600 processor
Intel Core i5-6500 processor
Intel Core i3-6320 processor
Intel Core i3-6300 processor
Intel Core i3-6100 processor
Intel Pentium G4520 processor
Intel Pentium G4500 processor
Intel Pentium G4400 processor
Intel Celeron G3920 processor
Intel Celeron G3900 processor
10 Chapter 2 Illustrated parts catalog
Misc parts
Item Description
(1) Speaker
(2) Power switch
(3) Fan sink (includes replacement thermal material)
(4) Chassis fan
(5) Front I/O assembly
(6) SATA cable
(7) DisplayPort connector module
(8) PCIe adapter – WLAN module (includes cable)
* WLAN modules
Misc parts 11
Item Description
Broadcom BCM943228Z 802.11n Bluetooth
Broadcom 802.11n, M.2 Bluetooth, Indonesia
Intel 7265 802.11AC Bluetooth
Intel 3165 802.11AC M.2 Bluetooth
* Rubber feet
* Card reader
USB 3.0
USB 2.0
* Optical drive bezel blank
* WLAN antennas
* HP Business PC Security Lock
* Drive adapter
Hard drive carrier, 2.5-inch to 3.5-inch
Removable frame carrier (installs in optical drive bay; includes adapter for 2.5-inch hard drives)
* Mouse
PS2, optical
USB, optical
USB, laser
Washable
HP USB Hardened Mouse (India only)
HP USB Antimicrobial Mouse (People’s Republic of China)
* Keyboard
HP Conferencing
PS/2 slim
USB slim
USB
HP USB Essential Keyboard
Unbranded
Washable
Smartcard
Wireless keyboard and mouse; includes dongle
Antimicrobial (People’s Republic of China only)
12 Chapter 2 Illustrated parts catalog
Cables
Description
SATA data cable, 10 inch, two straight ends
SATA data cable, 254 mm
DisplayPort cable
Adapters
PCIe to M.2, with full pro bracket
HP DisplayPort to DVI-D adapter
HP DisplayPort to HDMI 4k adapter
DisplayPort to VGA adapter
USB to serial adapter
DVI-I to VGA adapter
DVI cable
PCIe boards
Description
Nvidia GeForce GT730 DP PCIe x8 graphics card, 2 GB
Nvidia GeForce GT720 DP PCIe x8 graphics card, 2 GB
AMD R9 350 2 GB graphics card (DDR5, PCIe x16)
Intel PRO/1000 single port GbE, NIC
PCI adapter – WLAN module
Printer port, PCIe card
Serial port, PCIe card
Cables 13
Drives
Description
Hard drives
2 TB, 7200 rpm, 3.5 inch
1 TB, hybrid SSD, 2.5-inch
1 TB, 7200 rpm, 3.5 inch
500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED)
500 GB, hybrid SSD, 2.5 inch
500 GB, 7200 rpm, 3.5 inch
500 GB, 5400 rpm, FIPS140-2, 2.5 inch
Solid-state drives (SSDs)
512 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
512 GB Solid-state Drive (SSD), 3D NAND
256 GB Solid-state Drive (SSD), self-encrypting (SED)
256 GB Solid-state Drive (SSD)
256 GB Solid-state Drive (SSD), 3D NAND
256 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
180 GB Solid-state Drive (SSD)
180 GB Solid-state Drive (SSD), OPAL 2.0, MLC
128 GB Solid-state Drive (SSD), self-encrypting (SED)
128 GB Solid-state Drive (SSD)
128 GB Solid-state Drive (SSD), 3D NAND
128 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
120 GB Solid-state Drive (SSD)
120 GB Solid-state Drive (SSD), OPAL 2.0 MLC
Optical drive
Blu-ray BD-RW SuperMulti XL Drive
DVD±RW drive
DVD-ROM drive
14 Chapter 2 Illustrated parts catalog
3 Routine care, SATA drive guidelines, and
disassembly preparation
This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.
CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system
board. You must disconnect the power cord from the power source before opening the computer to prevent
system board or component damage.
Electrostatic discharge information
A sudden discharge of static electricity from your nger or other conductor can destroy static-sensitive
devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device
exposed to electrostatic discharge (ESD) may not appear to be aected at all and can work perfectly
throughout a normal cycle. The device may function normally for a while, but it has been degraded in the
internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge
contains enough power to alter device parameters or melt silicon junctions.
Generating static
The following table shows that:
●
Dierent activities generate dierent amounts of static electricity.
●
Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs from plastic tube
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
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
NOTE: 700 volts can degrade a product.
Electrostatic discharge information 15
Preventing electrostatic damage to equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of
sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric
components and accessories.
●
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
●
Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●
Place items on a grounded surface before removing them from their container.
●
Always be properly grounded when touching a sensitive component or assembly.
●
Avoid contact with pins, leads, or circuitry.
●
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
Personal grounding methods and equipment
Use the following equipment to prevent static electricity damage to equipment:
●
Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords.
To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be
connected and t snugly into the banana plug connector on the grounding mat or workstation.
●
Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with
most types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with
a maximum of one-megohm ± 10% resistance between the operator and ground.
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
Grounding the work area
To prevent static damage at the work area, use the following precautions:
●
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the
work surface and properly grounded tools and equipment.
●
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle
them only at static-free work areas.
●
Turn o power and input signals before inserting and removing connectors or test equipment.
Static Shielding Protection Levels
1,500
7,500
15,000
●
Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
●
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
●
Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
16 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
Recommended materials and equipment
Materials and equipment that are recommended for use in preventing static electricity include:
●
Antistatic tape
●
Antistatic smocks, aprons, or sleeve protectors
●
Conductive bins and other assembly or soldering aids
●
Conductive foam
●
Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
●
Static-dissipative table or oor mats with hard tie to ground
●
Field service kits
●
Static awareness labels
●
Wrist straps and footwear straps providing one-megohm +/- 10% resistance
●
Material handling packages
●
Conductive plastic bags
●
Conductive plastic tubes
●
Conductive tote boxes
●
Opaque shielding bags
●
Transparent metallized shielding bags
●
Transparent shielding tubes
Operating guidelines
To prevent overheating and to help prolong the life of the computer:
●
Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
●
Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides
of the computer and above the monitor to permit the required airow.
●
Never restrict the airow into the computer by blocking any vents or air intakes. Do not place the
keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also
restricts airow.
●
Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign matter
can block the vents and limit the airow. Be sure to unplug the computer before cleaning the air vents.
●
Never operate the computer with the cover or side panel removed.
●
Do not stack computers on top of each other or place computers so near each other that they are subject
to each other’s re-circulated or preheated air.
●
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be
provided on the enclosure, and the same operating guidelines listed above will still apply.
●
Keep liquids away from the computer and keyboard.
Operating guidelines 17
●
Never cover the ventilation slots on the monitor with any type of material.
●
Install or enable power management functions of the operating system or other software, including
sleep states.
Routine care
General cleaning safety precautions
1. Never use solvents or ammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use
the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.
Cleaning the Computer Case
Follow all safety precautions in General cleaning safety precautions on page 18 before cleaning the computer.
To clean the computer case, follow the procedures described below:
●
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
●
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth
or swab dampened with clear water.
●
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate
quickly and not leave a residue.
●
After cleaning, always wipe the unit with a clean, lint-free cloth.
●
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and
limit the airow.
Cleaning the keyboard
Follow all safety precautions in General cleaning safety precautions on page 18 before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the Computer
Case on page 18.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 18
before following these procedures:
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the
keys.
●
Visible debris underneath or between the keys may be removed by vacuuming or shaking.
●
Canned, pressurized air may be used to clean debris from under the keys. Caution should be used as too
much air pressure can dislodge lubricants applied under the wide keys.
18 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
●
If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is
available through many electronic supply outlets.
CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are
improperly removed or installed, the keyboard may not function properly.
●
Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be
careful not to wipe away lubricants necessary for proper key functions. Use tweezers to remove any
bers or dirt in conned areas. Allow the parts to air dry before reassembly.
Cleaning the monitor
●
Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for
cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into the
housing and damage a component. Never use solvents or ammable liquids on the monitor.
●
To clean the monitor body follow the procedures in Cleaning the Computer Case on page 18.
Cleaning the mouse
Before cleaning the mouse, ensure that the power to the computer is turned o.
●
Clean the mouse ball by rst removing the retaining plate and the ball from the housing. Pull out any
debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.
●
To clean the mouse body, follow the procedures in Cleaning the Computer Case on page 18.
Service considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.
Power supply fan
The power supply fan is a variable-speed fan based on the temperature in the power supply.
CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is o when
the computer is in “Standby,” “Suspend,” or “O” modes.
You must disconnect the power cord from the power source before opening the computer to prevent system
board or component damage.
Tools and software Requirements
To service the computer, you need the following:
●
Torx T-15 screwdriver
●
Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)
●
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●
Phillips #2 screwdriver
●
Diagnostics software
●
Tamper-resistant T-15 wrench
Service considerations 19
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and may
be of dierent lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP
strongly recommends that all screws removed during disassembly be kept with the part that was removed,
then returned to their proper locations.
CAUTION: Metric screws have a black nish. U.S. screws have a silver nish and are used on hard drives only.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the work area
to prevent damage.
Cables and connectors
Most cables used throughout the unit are at, exible cables. These cables must be handled with care to
avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from
the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the
cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts
being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the
reassembly process. Improper cable placement can damage the computer.
Hard Drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies
to failed drives as well as replacement spares.
●
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 computer.
●
Avoid dropping drives from any height onto any surface.
●
If you are inserting or removing a hard drive, turn o the computer. Do not remove a hard drive while the
computer is on or in standby mode.
●
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
●
Do not use excessive force when inserting a drive.
●
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds
such as monitors or speakers.
Lithium coin cell battery
The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime
of about three years.
See the appropriate removal and replacement chapter for the chassis you are working on in this guide for
instructions on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of re and chemical burn if the battery is
handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or re, or
expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.
20 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general
household waste. In order to forward them to recycling or proper disposal, please use the public collection
system or return them to HP, their authorized partners, or their agents.
SATA hard drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage dierential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for conguring drive N/A
Data transfer rate 6.0 Gb/s
SATA hard drive cables
SATA data cable
Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s
drives.
Current HP desktop products ship with SATA 6.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overexed. Never crease a SATA data cable and never bend it
tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
SMART ATA drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers
have built-in drive failure prediction that warns the user or network administrator of an impending failure or
crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as
reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is
imminent, it generates a fault alert.
Cable management
Always follow good cable management practices when working inside the computer.
●
Keep cables away from major heat sources like the heat sink.
●
Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not
designed to take excessive pressure on them.
●
Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts
are moved.
●
When folding a at ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.
SATA hard drives 21
●
Some at ribbon cables come prefolded. Never change the folds on these cables.
●
Do not bend any cable sharply. A sharp bend can break the internal wires.
●
Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.
●
Never crease a SATA data cable.
●
Do not rely on components like the drive cage, power supply, or computer cover to push cables down
into the chassis. Always position the cables to lay properly by themselves.
22 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
4 Removal and replacement procedures:
Microtower
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
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 15 for initial safety procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Turn o the computer before disconnecting any cables.
Regardless of the power-on state, voltage is always present on the system board as long as the system
is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in
the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a
unit.
5. As applicable, lay the computer down on its side to achieve a safe working position.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing. Keep all
screws with the units removed.
CAUTION: The screws used in the computer are of dierent thread sizes and lengths; using the wrong screw
in an application may damage the unit.
Preparation for disassembly 23
Access panel
To access internal components, you must remove the access panel:
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Loosen the thumbscrew on the rear of the computer (1), and then slide the panel back (2) and lift if o
the computer (3).
NOTE: System appearance may vary.
24 Chapter 4 Removal and replacement procedures: Microtower
Front bezel
Description
Front bezel for use in all countries and regions except for the People’s Republic of China
Front bezel for use in the People’s Republic of China
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24)
3. Lift up the three tabs on the side of the bezel (1), and then rotate the bezel o the chassis (2).
Front bezel 25
Optical drive bezel blank
On some models, there is a bezel blank covering the slim optical drive bay. Remove the bezel blank before
installing an optical drive. To remove the bezel blank:
1. Remove the access panel (Access panel on page 24)
2. Remove the front bezel (Front bezel on page 25)
3. To remove the bezel blank, press upward on the bottom tab and press downward on the top tab on the
side of the blank (1), and then rotate the blank o the front of the bezel (2).
26 Chapter 4 Removal and replacement procedures: Microtower
Memory
Description
16-GB, PC4-17000
8-GB, PC4-17000
4-GB, PC4-17000
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR4-SDRAM)
dual inline memory modules (DIMMs).
DIMMs
(ProDesk 400 and 480 models) The memory sockets on the system board can be populated with up to two
industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To
achieve the maximum memory support, you can populate the system board with up to 32-GB of memory
congured in a high-performing dual channel mode.
(ProDesk 490 models) The memory sockets on the system board can be populated with up to four industrystandard 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 64-GB of memory congured in a
high-performing dual channel mode.
DDR4-SDRAM DIMMs
For proper system operation, the DIMMs must be:
●
industry-standard 288-pin
●
unbuered non-ECC PC4-17000 DDR4-2133 MHz-compliant
●
1.2 volt DDR4-SDRAM DIMMs
The DIMMs must also:
●
support CAS latency 15 DDR4 2133 MHz (15-15-15 timing)
●
contain the mandatory JEDEC SPD information
In addition, the computer supports:
●
512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●
single-sided and double-sided DIMMs
●
DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
Memory 27
Populating DIMM sockets (ProDesk 400 and ProDesk 480)
There are two DIMM sockets on the system board, with one socket per channel. The sockets are labeled
DIMM1 and DIMM3. Socket DIMM1 operates in memory channel B. Socket DIMM3 operates in memory channel
A.
The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending
on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory congurations will result in inferior graphics
performance.
●
The system will operate in single channel mode if the DIMM sockets are populated in one channel only.
●
The system will operate in a higher-performing dual channel mode if the memory capacity of the DIMM
in Channel A is equal to the memory capacity of the DIMM in Channel B.
●
The system will operate in ex mode if the memory capacity of the DIMM in Channel A is not equal to the
memory capacity of the DIMM in Channel B. In ex mode, the channel populated with the least amount
of memory describes the total amount of memory assigned to dual channel and the remainder is
assigned to single channel. If one channel will have more memory than the other, the larger amount
should be assigned to Channel A.
●
In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
28 Chapter 4 Removal and replacement procedures: Microtower
Populating DIMM sockets (ProDesk 490)
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.
The system will automatically operate in single channel mode, dual channel mode, or ex mode, depending
on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory congurations will result in inferior graphics
performance.
●
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 ex 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 ex mode, the channel populated with the
least amount of memory describes the total amount of memory assigned to dual channel and the
remainder is assigned to single channel. 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
conguration, 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
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 23).
2. Remove the access panel (Access panel on page 24)
briey touching a grounded metal
Memory 29
3. Open both latches of the memory module socket (1), and insert the memory module into the socket (2).
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
For maximum performance, populate the sockets so that the memory capacity is spread as equally as
possible between Channel A and Channel B.
4. 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).
5. Repeat steps 3 and 4 to install any additional modules.
The computer should automatically recognize the additional memory the next time you turn on the computer.
30 Chapter 4 Removal and replacement procedures: Microtower
Expansion cards
Description
Nvidia GeForce GT730 DP PCIe x8 graphics card, 2 GB
Nvidia GeForce GT720 DP PCIe x8 graphics card, 2 GB
AMD R9 350 2 GB graphics card (DDR5, PCIe x16)
Intel PRO/1000 single port GbE, NIC
PCI adapter – WLAN module
Printer port, PCI card
Serial port, PCI card
(ProDesk 400) The computer has three PCI Express x1 expansion sockets and one PCI Express x16 expansion
socket.
(ProDesk 480) The computer has one PCI expansion socket, two PCI Express x1 expansion sockets, and one
PCI Express x16 expansion socket.
(ProDesk 490) The computer has two PCI Express x1 expansion sockets, one PCI Express x16 expansion
socket, and one PCI Express x16 expansion socket that is downshifted to a x4 socket.
NOTE: You can install a PCI Express x1, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express x16 socket.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24)
3. Remove the screw that holds down the expansion card retention latch (1), and then slide the latch up (2)
and pull it o the rear of the chassis (3).
Expansion cards 31
4. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to
the expansion card.
a. If you are installing an expansion card in a vacant socket, you must slide one of the expansion slot
covers up and out of the chassis or use a atblade screwdriver to pry out one of the metal shields
on the rear panel that covers the expansion slot. Be sure to remove the appropriate shield for the
expansion card you are installing.
NOTE: System board appearance may vary.
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. Lift the card straight up (1) then away from the
inside of the chassis (2) to remove it. Be sure not to scrape the card against other components.
32 Chapter 4 Removal and replacement procedures: Microtower
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. Lift the card straight up then away from the inside of the chassis to remove it. Be
sure not to scrape the card against other components.
6. Store the removed card in anti-static packaging.
7. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot
cover for proper cooling of internal components during operation.
8. To install a new expansion card, hold the card just above the expansion socket on the system board then
move the card toward the rear of the chassis (1) so that the bottom of the bracket on the card slides into
the small slot on the chassis. Press the card straight down into the expansion socket on the system
board (2).
NOTE: When installing an expansion card, press rmly on the card so that the whole connector seats
properly in the expansion card socket.
Expansion cards 33
9. Press the expansion card retention latch against the back of the chassis (1) and slide it down (2) so that
the tabs on the back of the latch slide into the notches on the chassis and then replace the screw that
secures the latch (3).
10. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if
needed.
Drives
11. Replace the computer access panel.
12. Reconnect the power cord and turn on the computer.
13. Lock any security devices that were disengaged when the computer access panel was removed.
14. Recongure the computer, if necessary.
Description
Hard drives
2 TB, 7200 rpm, 3.5 inch
1 TB, hybrid SSD, 2.5-inch
1 TB, 7200 rpm, 3.5 inch
500 GB, 7200 rpm, 2.5 inch, self-encrypting (SED)
500 GB, hybrid SSD, 2.5 inch
500 GB, 7200 rpm, 3.5 inch
500 GB, 5400 rpm, FIPS140-2, 2.5 inch
Solid-state drives (SSDs)
512 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
512 GB Solid-state Drive (SSD), 3D NAND
256 GB Solid-state Drive (SSD), self-encrypting (SED)
34 Chapter 4 Removal and replacement procedures: Microtower
Description
256 GB Solid-state Drive (SSD)
256 GB Solid-state Drive (SSD), 3D NAND
256 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
180 GB Solid-state Drive (SSD)
180 GB Solid-state Drive (SSD), OPAL 2.0, MLC
128 GB Solid-state Drive (SSD), self-encrypting (SED)
128 GB Solid-state Drive (SSD)
128 GB Solid-state Drive (SSD), 3D NAND
128 GB Solid-state Drive (SSD), 2280 PCIe, NVMe
120 GB Solid-state Drive (SSD)
120 GB Solid-state Drive (SSD), OPAL 2.0 MLC
Optical drive
Blu-ray BD-RW SuperMulti XL Drive
DVD±RW drive
DVD-ROM drive
When installing drives, follow these guidelines:
●
The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on
the system board labeled SATA0.
●
Connect secondary hard drives and optical drives to one of the light blue SATA connectors on the system
board (labeled SATA1 and SATA2).
Drives 35
●
HP has provided four extra 6-32 hard drive mounting screws installed on the front of the chassis behind
the bezel (1). The mounting screws are required for 3.5-inch and 2.5-inch hard drives installed in the
hard drive bays. If you are replacing a drive, remove the mounting screws from the old drive and install
them in the new drive.
NOTE: System board appearance may vary.
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn o the computer, and
unplug the power cord. Do not remove a drive while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector. For more information about preventing electrostatic damage, refer to Electrostatic
discharge information on page 15.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds such as
monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label the
package “Fragile: Handle With Care.”
36 Chapter 4 Removal and replacement procedures: Microtower
System board connections (ProDesk 400)
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 x1 X1PCIEXP3 black Expansion Card
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 DIMM3 (Channel A) DIMM3 black Memory Module
6 DIMM1 (Channel B) DIMM1 black Memory Module
7 Battery BAT black Battery
8 SATA 3.0 SATA1 light blue Any SATA Device other than the Primary
Hard Drive
9 SATA 3.0 SATA2 light blue Any SATA Device other than the Primary
Hard Drive
10 SATA 3.0 SATA0 dark blue Primary Hard Drive
Drives 37
System board connections (ProDesk 480)
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 PCI1 white Expansion Card
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 Battery BAT black Battery
6 DIMM3 (Channel A) DIMM3 black Memory Module
7 DIMM1 (Channel B) DIMM1 black Memory Module
8 SATA 3.0 SATA0 dark blue Primary Hard Drive
9 SATA 3.0 SATA1 light blue Any SATA Device other than the Primary
Hard Drive
10 SATA 3.0 SATA2 light blue Any SATA Device other than the Primary
Hard Drive
38 Chapter 4 Removal and replacement procedures: Microtower
System board connections (ProDesk 490)
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 DisplayPort DISPLAY white DisplayPort Expansion Card
6 DIMM4 (Channel A) DIMM4 white Memory Module
7 DIMM3 (Channel A) DIMM3 black Memory Module
8 DIMM2 (Channel B) DIMM2 white Memory Module
9 DIMM1 (Channel B) DIMM1 black Memory Module
10 Battery BAT black Battery
11 SATA 3.0 SATA1 light blue Any SATA Device other than the Primary
12 SATA 3.0 SATA2 light blue Any SATA Device other than the Primary
13 SATA 3.0 SATA0 dark blue Primary Hard Drive
X4PCIEXP white Expansion Card
Hard Drive
Hard Drive
Drives 39
Drive positions
NOTE: System board appearance may vary.
1 9.5-mm slim optical drive bay
2 3.5-inch internal hard drive bay
3 2.5-inch internal hard drive bay
4 3.5-inch internal hard drive bay
NOTE: The drive conguration on your computer may be dierent than the drive conguration shown above.
NOTE: The upper hard drive bay can contain either a 3.5-inch hard drive or a 2.5-inch hard drive, but not both.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
40 Chapter 4 Removal and replacement procedures: Microtower
Removing a 9.5-mm 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 23)
2. Remove the access panel (Access panel on page 24)
3. Remove the front bezel (Front bezel on page 25)
4. Disconnect the power cable and data cable from the back of the optical drive.
CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to avoid
damaging the cable.
5. Push the green release latch on the right rear side of the drive inward (1) and slide the drive out of the
drive bay (2).
Installing a 9.5-mm slim optical drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 23)
2. Remove the access panel (Access panel on page 24)
3. Remove the front bezel (Front bezel on page 25). If you are installing a drive in a bay covered by a bezel
blank, remove the bezel blank. See Optical drive bezel blank on page 26 for more information.
Drives 41
4. Align the small pin on the release latch with the small hole on the side of the drive and press the latch
rmly onto the drive.
5. Slide the optical drive through the front bezel (1) all the way into the bay so that the green latch locks
onto the chassis frame (2).
6. Connect the power cable and data cable to the back of the optical drive.
7. If installing a new drive, connect the opposite end of the data cable to one of the white SATA connectors
(labeled SATA4 or SATA5) on the system board.
8. Replace the front bezel.
9. Replace the computer access panel.
10. Reconnect the power cord and any external devices, then turn on the computer.
11. Lock any security devices that were disengaged when the access panel was removed.
42 Chapter 4 Removal and replacement procedures: Microtower
Removing 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 23)
2. Remove the access panel (Access panel on page 24)
3. Disconnect the data cable (1) and power cable (2) from the rear of the hard drive, and then remove the
four 6-32 mounting screws (3) and slide the drive out of the bay (4).
Drives 43
Installing a 3.5-inch hard drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Slide the drive into the drive bay (1) and install the four 6-32 mounting screws (2) to secure the drive in
place. Connect the data cable (3) and power cable (4) to the rear of the hard drive.
NOTE: HP has supplied four extra 6-32 mounting screws on the front of the chassis behind the bezel.
Refer to Drives on page 34 for an illustration of the location of the extra mounting screws. When
replacing a hard drive, use the four 6-32 mounting screws that were removed from the old drive to
install the new one.
4. If installing a new drive, connect the opposite end of the data cable to the appropriate system board
connector.
NOTE: You must connect the primary hard drive data cable to the dark blue connector labeled SATA0 to
avoid any hard drive performance problems. If you are adding a second hard drive, connect the data
cable to one of the light blue SATA connectors.
5. Replace the computer access panel.
6. Reconnect the power cord and any external devices, then turn on the computer.
7. Lock any security devices that were disengaged when the access panel was removed.
44 Chapter 4 Removal and replacement procedures: Microtower
Removing a 2.5-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 23)
2. Remove the access panel (Access panel on page 24)
3. Disconnect the data cable (1) and power cable (2) from the rear of the hard drive, and then remove the
four 6-32 mounting screws (3) and slide the drive out of the bay (4).
Drives 45
Installing a 2.5-inch hard drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 23)
2. Remove the access panel (Access panel on page 24)
3. Slide the drive into the drive bay (1) and install the four 6-32 mounting screws (2) to secure the drive in
place. Connect the data cable (3) and power cable (4) to the rear of the hard drive.
NOTE: HP has supplied four extra 6-32 mounting screws on the front of the chassis behind the bezel.
Refer to Drives on page 34 for an illustration of the location of the extra mounting screws. When
replacing a hard drive, use the four 6-32 mounting screws that were removed from the old drive to
install the new one.
4. If installing a new drive, connect the opposite end of the data cable to the appropriate system board
connector.
NOTE: You must connect the primary hard drive data cable to the dark blue connector labeled SATA0 to
avoid any hard drive performance problems. If you are adding a second hard drive, connect the data
cable to one of the light blue SATA connectors.
5. Replace the computer access panel.
6. Reconnect the power cord and any external devices, then turn on the computer.
7. Lock any security devices that were disengaged when the access panel was removed.
46 Chapter 4 Removal and replacement procedures: Microtower
WLAN module
WLAN modules can be installed using a PCI expansion card adapter. First install the WLAN module into the
expansion card adapter, and then install the expansion card into the computer.
Description
Broadcom BCM943228Z 802.11n Bluetooth
Broadcom 802.11n, M.2 Bluetooth, Indonesia
Intel 7265 802.11AC Bluetooth
Intel 3165 802.11AC M.2 Bluetooth
To remove the WLAN module:
1. Prepare the computer for disassembly (Preparation for disassembly on page 23)
2. Remove the access panel (Access panel on page 24)
3. On the expansion card adapter, disconnect the WLAN antenna cables (1) from the terminals on the
WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal labeled “1”.
The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal labeled “2”.
4. Remove the Phillips PM2.0×4.0 screw (2) that secures the WLAN module to the computer. (The edge of
the module opposite the slot rises away from the computer.)
5. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.
Reverse this procedure to install the WLAN module.
WLAN module 47
RTC battery
The battery installed on the computer provides power to the real-time clock. When replacing the battery, use
a battery equivalent to the battery originally installed on the computer. The computer has a 3-volt lithium
coin cell battery installed.
WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of re and
burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or dispose of in re or water.
Replace the battery only with the HP spare designated for this product.
CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the
battery is removed or replaced, the CMOS settings will be cleared.
Static electricity can damage the electronic components of the computer or optional equipment. Before
beginning these procedures, ensure that you are discharged of static electricity by briey touching a
grounded metal object.
NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall
socket. The lithium battery is only used when the computer is NOT connected to AC power.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable
batteries. For more information about recycling programs, go to http://www.hp.com/recycle.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23)
2. Remove the access panel (Access panel on page 24)
3. Locate the battery and battery holder on the system board.
NOTE: On some computer models, it may be necessary to remove an internal component to gain
access to the battery.
4. Depending on the type of battery holder on the system board, complete the following instructions to
replace the battery.
Type 1
a. Lift the battery out of its holder.
b. Slide the replacement battery into position, positive side up. The battery holder automatically
secures the battery in the proper position.
48 Chapter 4 Removal and replacement procedures: Microtower
Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the lip of the holder
with the positive side up. Push the other edge down until the clamp snaps over the other edge of
the battery (2).
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
b. Insert the new battery and position the clip back into place.
NOTE: After the battery has been replaced, use the following steps to complete this procedure.
5. Replace the computer access panel.
6. Plug in the computer and turn on power to the computer.
RTC battery 49
7. Reset the date and time, your passwords, and any special system setups using Computer Setup.
8. Lock any security devices that were disengaged when the computer access panel was removed.
DisplayPort connector module
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. From the outside, rear of the computer, remove the Torx T15 screw that secures the DisplayPort module
to the computer.
NOTE: Chassis appearance may vary.
4. From the inside of the computer, pull the module straight up to disengage it from the system board
connector.
To reinstall the DisplayPort connector module, reverse the removal procedure.
50 Chapter 4 Removal and replacement procedures: Microtower
Card reader
Description
Card reader, USB 3.0
Card reader, USB 2.0
The card reader is attached to the front of the chassis.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Remove the front bezel (Front bezel on page 25).
4. From the outside, front of the chassis, remove the Torx T15 screw that secures the card reader.
5. From the inside of the chassis, disconnect the card reader cable from the system board labeled SD RDR,
and then press the tab on the side of the card reader (1) and slide the card reader out the front of the
chassis (2).
To install the card reader, reverse the removal procedures.
Card reader 51
Front I/O assembly
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Remove the front bezel (Front bezel on page 25).
4. From the inside of the computer, disconnect the two front I/O cables from the following system board
connectors:
●
FRONT USB3.0
●
FRONT AUD
NOTE: System board layout may vary.
5. Remove the cables from the metal clip built into the base pan.
52 Chapter 4 Removal and replacement procedures: Microtower
6. From the front of the computer, remove the Torx T15 screw that secures the assembly to the chassis.
7. Rotate the left side of the assembly away from the chassis, and then pull the assembly away from the
chassis while threading the cables through the hole in the front of the chassis.
To reinstall the assembly, reverse the removal procedure.
Front I/O assembly 53
Power switch assembly
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Remove the front bezel (Front bezel on page 25).
4. Disconnect the cable from the PB/LED system board connector.
NOTE: System board layout may vary.
5. From the inside of the computer, press the tab on the left side of the power switch (1), and then push
the power switch out of the front of the chassis.
54 Chapter 4 Removal and replacement procedures: Microtower
6. From the front, pull the power switch away from the chassis while threading the wire though the hole in
the chassis.
To reinstall the power switch assembly, reverse the removal procedure.
Power switch assembly 55
Fan sink
Description
Fan sink, standard
Fan sink, BFR/PVC free
WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to
cool before touching.
NOTE: System board appearance may vary.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then loosen the four
captive Torx T15 screws (2) that secure the fan sink to the system board.
CAUTION: Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even the
downward forces on the processor.
4. Lift the fan sink from atop the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
seat the heat sink on the processor.
56 Chapter 4 Removal and replacement procedures: Microtower
Processor
Description
Intel Core i7-6700 processor
Intel Core i5-6600 processor
Intel Core i5-6500 processor
Intel Core i3-6320 processor
Intel Core i3-6300 processor
Intel Core i3-6100 processor
Intel Pentium G4520 processor
Intel Pentium G4500 processor
Intel Pentium G4400 processor
Intel Celeron G3920 processor
Intel Celeron G3900 processor
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Remove the fan sink (Fan sink on page 56).
4. Rotate the locking lever to its full open position (1).
5. Raise and rotate the microprocessor retainer to its fully open position (2).
6. Lift the processor (3) straight up and remove it.
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.
Reverse the removal procedure to install a new processor.
Processor 57
NOTE: After installing a new processor onto the system board, 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://h18000.www1.hp.com/support/les.
Speaker
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. From the outside front of the chassis, remove the Torx screw that secures the speaker to the front of the
chassis.
4. From the inside of the chassis, disconnect the speaker cable from the system board connector labeled
SPKR.
NOTE: System board appearance may vary.
5. Remove the speaker cable from the clip built into the base of the chassis (1).
58 Chapter 4 Removal and replacement procedures: Microtower
6. Slide the speaker to the right and remove it from the chassis (2).
To replace the speaker, reverse the removal procedures.
Speaker 59
Fan
IMPORTANT: System fan only ships with select models. Most models do NOT include a system fan. On
models without a fan, Mylar covers the inside of the fan grill on the rear of the computer.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. From the outside, rear of the chassis, remove the two Phillips screws that secure the fan to the chassis.
4. From the inside of the chassis, disconnect the fan control cable (1) from the system board connector
labeled CHFAN2.
5. Lift the fan out of the chassis (2).
To install the fan, reverse the removal procedure. Be sure to orient the air ow out of the computer.
60 Chapter 4 Removal and replacement procedures: Microtower
Power supply
NOTE: System board appearance may vary.
Description
300W, Active PFC
300W, Energy Star 5.0
300W, standard
180W, Active PFC
180W, Energy Star 5.0
180W, Energy Star 6.0
180W, standard
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. From the outside rear of the chassis, remove the four silver Torx T15 screws that secure the power
supply to the chassis.
4. Disconnect the power cables from the drives and from the following system board connectors:
Main system board power connector labeled PWR.
Processor system board power connector labeled PWRCPU.
Power supply 61
Power supply connectors connect to the drives as follows:
●
P3 connector: primary hard drive
●
P5 connector: primary optical drive
●
P4 connector: secondary SATA drive
5. From the inside of the chassis, press the power supply release button (1), slide the power supply toward
the front of the computer, rotate slightly into the computer so the power supply clears the lip on the top
of the chassis, and then lift the power supply out of the chassis (2).
To install the power supply, reverse the removal procedure.
62 Chapter 4 Removal and replacement procedures: Microtower
System board
NOTE: All system board spare part kits include replacement thermal material.
NOTE: System board appearance may vary.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
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 (Memory on page 27)
●
Expansion cards (Expansion cards on page 31)
●
Fan sink (Fan sink on page 56).
4. Disconnect all cables connected to the system board, noting their location for reinstallation.
5. Remove the eight Torx T15 screws (1) that secure the system board to the chassis.
6. Slide the system board toward the front of the computer to disengage the I/O panel (2), and then lift the
system board out of the computer (3).
When reinstalling the system board, rst insert the I/O panel back into the slots in the rear of the chassis, and
then align the board with the chassis screw holes.
NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
HP ProDesk 400 G3 system board callouts
NOTE: System board may not include heat sink.
System board 63
Sys Bd Label Color Component Sys Bd Label Color Component
PWRCPU White Processor power SATA1 Light blue Optical Drive
PROCESSOR Silver Processor SATA0 Dark blue Hard drive
CPUFAN White Processor fan PSWD Green Clear system passwords
XMM3 Black Memory module BAT Black RTC battery
XMM1 Black Memory module SPKR White Speaker
PWR White 24-pin main power
connector
CMOS Yellow Reset CMOS X1PCIEXP3 Black Expansion card
PB/LED Black Power switch X1PCIEXP2 Black Expansion card
USB3.0 Blue Front I/O X1PCIEXP1 Black Expansion card
SD RDR Black SD card reader X16PCIEXP White Expansion card
COMB Black Optional serial port CHFAN2 Red Chassis fan
SATA2 Light blue Optional SATA drive
64 Chapter 4 Removal and replacement procedures: Microtower
FRONT_AUD Blue Front I/O
HP ProDesk 480 G3 system board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
PWRCPU White Processor power SATA0 Dark blue Hard drive
XU Silver Processor PSWD Green Clear system passwords
CPUFAN White Processor fan CMOS Yellow Reset CMOS
XMM1 Black Memory module
(Channel A)
XMM3 Black Memory module
(Channel A)
PB/LED Black Power switch PCI White Expansion card
PWR White 24-pin main power
connector
COMB Black Optional serial port X1PCIEXP1 Black Expansion card
FRONT USB3.0 Blue Front I/O X16PCIEXP White Expansion card
SD RDR Black SD card reader BAT Black RTC battery
SATA2 Light blue Optional SATA drive CHFAN2 Red Chassis fan
SATA1 Light blue Optical Drive
SPKR White Speaker
FRONT_AUD Blue Front I/O
X1PCIEXP2 Black Expansion card
System board 65
HP ProDesk 490 G3 system board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
PWRCPU White Processor power PSWD Green Clear system passwords
XU1 Silver Processor SATA1 Light blue Optical Drive
CPUFAN White Processor fan SATA0 Dark blue Hard drive
XMM4 White Memory module
(Channel B)
XMM3 Black Memory module
(Channel A)
XMM2 White Memory module
(Channel B)
XMM1 Black Memory module
(Channel A)
PB/LED Black Power switch X4PCIEXP White Expansion card
PWR White 24-pin main power
connector
COMB Black Optional serial port X1PCIEXP1 Black Expansion card
FRONT USB3.0 Blue Front I/O X16PCIEXP White Expansion card
SD RDR Black SD card reader DISPLAY White Optional DisplayPort
CMOS Yellow Reset CMOS
BAT Black RTC battery
SPKR White Speaker
FRONT_AUD Blue Front I/O
X1PCIEXP2 Black Expansion card
connector
SATA2 Light blue Optional SATA drive CHFAN2 Red Chassis fan
66 Chapter 4 Removal and replacement procedures: Microtower
5 Computer Setup (F10) Utility
Computer Setup (F10) Utilities
Use Computer Setup (F10) Utility to do the following:
●
Change settings from the defaults or restore the settings to default values.
●
View the system conguration, including settings for processor, graphics, memory, audio, storage,
communications, and input devices.
●
Modify the boot order of bootable devices such as hard drives, optical drives, or USB ash media devices.
●
(Windows 7 only) Establish an Ownership Tag, the text of which is displayed each time the system is
turned on or restarted.
●
Enter the Asset Tag or property identication number assigned by the company to this computer.
●
Enable the power-on password prompt during system restarts (warm boots) as well as during power-on.
●
Establish an administrator password that controls access to the Computer Setup (F10) Utility and the
settings described in this section.
●
Establish minimum requirements for valid passwords, including length and required types of characters.
●
Secure integrated I/O functionality, including the serial, USB, or audio, or embedded NIC, so that they
cannot be used until they are unsecured.
●
Enable or disable dierent types of boot sources.
●
Congure features such as Secure Boot, power management, virtualization support, and language and
keyboard type used in Setup and POST.
●
Replicate the system setup by saving system conguration information on a USB device and restoring it
on one or more computers.
●
Enable or disable DriveLock security or securely erase a hard drive (when supported by drive).
Using Computer Setup (F10) Utilities
Computer Setup can be accessed only by turning the computer on or restarting the system. To access the
Computer Setup Utilities menu, complete the following steps:
1. Turn on or restart the computer.
2. Repeatedly press F10 when the monitor light turns green to access the utility.
You can also press Esc to a menu that allows you to access dierent options available at startup,
including the Computer Setup utility.
NOTE: If you do not press F10 at the appropriate time, you must restart the computer and again
repeatedly press F10 when the monitor light turns green to access the utility.
3. A choice of four headings appears in the Computer Setup Utilities menu: Main, Security, Advanced, and
UEFI Drivers.
NOTE: Selecting UEFI Drivers restarts the computer into the 3rd party option ROM management
application. You can access this application directly by pressing F3 during startup.
Computer Setup (F10) Utilities 67
4. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down) keys
to select the option you want, then press Enter. To return to the Computer Setup Utilities menu, press
Esc.
5. To apply and save changes, select Main > Save Changes and Exit.
●
If you have made changes that you do not want applied, select Ignore Changes and Exit.
●
To restore settings from the Advanced and Main menus to original values, select Apply Factory
Defaults and Exit.
●
To restore settings from the Advanced and Main menus to those previously saved by Save Custom
Defaults
factory defaults are used.
NOTE: Settings in the Security menu are not modied by Apply Defaults. Those values are reset by
Restore Security Settings to Factory Defaults at the bottom of the Security menu.
NOTE: Not all settings shown in the following sections are available for all models
CAUTION: Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup (F10) changes
because the settings could become corrupted. It is safe to turn o the computer only after exiting the F10
Setup screen.
, select Apply Custom Defaults and Exit. If no custom defaults have been saved, then
68 Chapter 5 Computer Setup (F10) Utility
Computer Setup–Main
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-1 Computer Setup—Main
Option Description
System Information Lists all information in following list if Advanced System Information is selected. Lists smaller subset if
Basic System Information is selected.
●
Product name
●
Installed memory size
●
Processor type
●
Processor cache size (L1/L2/L3)
●
Processor speed
●
MicroCode Revision
●
Processor Stepping
●
DIMM size (for each installed module)
●
System BIOS version
●
ME Firmware version (Intel only)
●
Video BIOS version
●
Super I/O Firmware version
●
Born On Date
●
Serial Number
●
SKU number
●
UUID (Universally Unique Identier)
●
Asset Tracking Number
●
Feature Byte
●
Build ID
●
Product Family
●
System Board ID
●
System Board CT
●
Integrated MAC Address
System Diagnostics If the hard drive has the HP Advanced Diagnostics installed, the application will launch. If HP Advanced
Diagnostics is not installed, then a basic version built into the BIOS will provide the capability to perform
the following functions:
●
Memory Test
●
Hard Drive Check
●
Language
Update System BIOS Lets you update the system BIOS from www.hp.com or another network server, from a removable USB
drive, or from a le located on the hard drive.
●
‘Check HP.com for BIOS Updates’ or ‘Check the Network for BIOS Updates’
The string that appears here depends on the setting in ‘BIOS Update Preferences’.
Computer Setup (F10) Utilities 69
Table 5-1 Computer Setup—Main (continued)
●
Lock BIOS Version
If this option is checked, the system is locked to the current BIOS version and updates are not
allowed.
●
BIOS Update Preferences
Allows the administrator to select the source of network updates (www.hp.com or another network
server) and allows conguration of a periodic check for updates, including policies for:
■
Check for updates and prompt the user to accept or reject the update at that time
■
Check for updates and install all new versions
■
Check for updates and install only new versions marked important
●
Network Conguration Settings
●
Update BIOS Using Local Media
Lets you access les on either USB storage or the hard drive. The HP BIOS Update and Recovery
application included in BIOS Softpaqs at www.hp.com will copy the BIOS le to the correct location
on the hard drive or USB device.
System IDs Lets you set the following values:
●
Asset Tracking Number
●
Ownership Tag
Replicated Setup Backup current settings to USB device
Saves system conguration to a formatted USB ash media device.
Restore current settings from USB device
Restores system conguration from a USB ash media device.
Save Custom Defaults Saves the current system conguration settings as the custom default set.
Apply Custom Defaults
and Exit
Apply Factory Defaults
and Exit
Ignore Changes and Exit Exits Computer Setup without applying or saving any changes.
Save Changes and Exit Saves changes to current system conguration, exits Computer Setup, and reboots.
Applies the custom default settings to the computer after rebooting. Does not apply to options in the
Security menu.
Restores the factory system conguration settings to the computer after rebooting. Does not apply to
options in the Security menu.
70 Chapter 5 Computer Setup (F10) Utility
Computer Setup—Security
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-2 Computer Setup—Security
Option Description
Set up BIOS
Administrator Password
Change BIOS
Administrator Password
(This selection is active
only if a BIOS
administrator password is
set.)
Password Policies Let you set the guidelines for a valid password. Options include:
Lets you set and enable a BIOS administrator password, which includes the following privileges:
●
Manage other BIOS users
●
Full access to BIOS policy and settings
●
Unlock the computer when other BIOS users fail the preboot authentication.
NOTE: Creating a BIOS user disables the Fast Boot option.
NOTE: If the password is set, it is required to change Computer Setup options, update the BIOS, and
make changes to certain plug and play settings under Windows.
Lets you change the BIOS administrator password.
You must know the current password to be able to change it.
●
Password minimum length
●
Requires at least one symbol
●
Requires at least one number
●
Requires at least one upper case character
●
Requires at least one lower case character
●
Allow spaces
Clear Password Jumper
Select ‘Honor’ to allow or ‘Ignore’ to not allow the absence of the password jumper to clear the passwords
at boot up. Default is ‘Honor’.
Security Conguration TPM Embedded Security
●
TPM Device
Lets you set the Trusted Platform Module as available or hidden.
●
TPM State
Select to enable the TPM.
●
TPM Clear
Select to reset the TPM to an unowned state. After the TPM is cleared, it is also turned o. To
temporarily suspend TPM operations, turn the TPM o instead of clearing it.
CAUTION: Clearing the TPM resets it to factory defaults and turns it o. You will lose all created
keys and data protected by those keys.
BIOS Sure Start
●
Verify Boot Block on every Boot
Select to check validity of boot block region each boot. If not selected, boot block region will be
validated on power cycles.
Computer Setup (F10) Utilities 71
Table 5-2 Computer Setup—Security (continued)
●
Data Recovery Policy
Select ‘Automatic’ or ‘Manual’ to set data recovery policy. ‘Manual’ lets you select whether or not to
execute recovery of a corrupted region if it is detected.
Set Up BIOS Power-On
Password
Change BIOS Power-On
Password
(This selection is active
only if a BIOS power-on
password is set.)
DriveLock Allows you to assign or modify a master or user password for hard drives. When this feature is enabled,
Secure Erase Lets you select a hard drive to completely erase.
Lets you set and enable a BIOS power-on password. The power-on password prompt appears after a
power cycle or reboot. If the user does not enter the correct power-on password, the unit will not boot.
Lets you change the BIOS power-on password.
You must know the current password to be able to change it.
the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully
entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during
a subsequent cold-boot sequence.
NOTE: This selection will only appear when at least one drive that supports the DriveLock feature is
attached to the system.
CAUTION: Be aware that these settings take place immediately. A save is not necessary.
CAUTION: Be sure to document the DriveLock password. Losing a DriveLock password will render a drive
permanently locked.
After you select a drive, the following options are available:
Set DriveLock Master Password. Sets the drive’s master password but does not enable DriveLock.
Enable DriveLock. Sets the drive’s user password and enables DriveLock.
Once a hard drive has been erased with a program that utilizes Secure Erase rmware commands, no le
recovery program, partition recovery program, or other data recovery method will be able to extract data
from the drive.
Save/Restore MBR of the
system hard drive
Smart Cover Cover Lock (Lock/Unlock)
NOTE: Windows 8.1 and Windows 10 systems are generally not formatted to include an MBR. Instead
they use GUID Partition Table (GPT) format, which better supports large hard drives.
Enabling this feature will save the Master Boot Record (MBR) of the system hard drive. If the MBR gets
changed, the user will be prompted to restore the MBR. Default is disabled.
The MBR contains information needed to successfully boot from a disk and to access the data stored on
the disk. Master Boot Record Security may prevent unintentional or malicious changes to the MBR, such as
those caused by some viruses or by the incorrect use of certain disk utilities. It also allows you to recover
the "last known good" MBR, should changes to the MBR be detected when the system is restarted.
NOTE: Most operating systems control access to the MBR of the current bootable disk; the BIOS cannot
prevent changes that may occur while the operating system is running.
Restores the backup Master Boot Record to the current bootable disk. Default is disabled.
Only appears if all of the following conditions are true:
●
MBR security is enabled
●
A backup copy of the MBR has been previously saved
●
The current bootable disk is the same disk from which the backup copy was saved
CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modied the
MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved MBR if you
are condent that the current bootable disk's MBR has been corrupted or infected with a virus.
72 Chapter 5 Computer Setup (F10) Utility
Table 5-2 Computer Setup—Security (continued)
Default is ‘Unlock’.
Cover Removal Sensor (Disabled/Notify user/Administrator password)
Lets you disable the cover sensor or congure what action is taken if the computer cover was removed.
Default is ‘Disabled’.
NOTE: Notify user alerts the user with a POST error on the rst boot after the sensor detects removal of
the cover. If the password is set, Administrator Password requires that the password be entered to boot
the computer if the sensor detects that the cover has been removed.
System Management
Command
Restore Security
Settings to Default
Allows authorized personnel to reset security settings during a service event. Default is enabled.
This action resets security devices, clears BIOS passwords (not including DriveLock), and restores settings
in the Security menu to factory defaults.
Computer Setup—Advanced
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-3 Computer Setup—Advanced (for advanced users)
Option Heading
Display Language Lets you select the language of the menus in F10 Setup and the keyboard layout.
Scheduled Power-On This feature wakes the system up from a powered o state at a specied date and time.
Boot Options Select the devices that the computer can boot from, as well as other options, including:
●
●
●
●
●
●
●
●
●
Startup Menu Delay(sec). Enabling this feature will add a user-specied delay to the POST process.
One purpose for the delay is to provide additional time to activate hotkeys such as Esc for the
Startup Menu or F10 for Computer Setup.
Fast Boot. Default is enabled for Windows 8.1 or later, and disabled for Windows 7 systems.
CD-ROM Boot. Default is enabled.
Network (PXE) Boot. Default is enabled.
Prompt on Memory Size Change. Default is enabled.
Prompt on Fixed Storage Change. Default is disabled.
After Power Loss. Default is Power O.
■
Power o—causes the computer to remain powered o when power is restored.
■
Power on—causes the computer to power on automatically as soon as power is restored.
■
Previous state—causes the computer to power on automatically as soon as power is restored,
if it was on when power was lost.
NOTE: If the system is congured to ‘Power On from Keyboard Ports’ (see Power Management
Options), then this setting is forced to ‘Power On’.
Audio Alerts During Boot. Default is enabled. When disabled, most audible beeps from errors,
warnings, and password prompts during boot up are suppressed.
UEFI Boot Order.
Default is enabled. Specify the order in which UEFI boot sources (such as a internal hard drive, USB
hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system
image.
UEFI boot sources always have precedence over legacy boot sources.
Computer Setup (F10) Utilities 73
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
●
Legacy Boot Order
Specify the order in which legacy boot sources (such as a network interface card, internal hard drive,
USB optical drive, or internal optical drive) are checked for a bootable operating system image.
Specify the order of attached hard drives. The rst hard drive in the order will have priority in the
boot sequence and will be recognized as drive C (if any devices are attached).
NOTE: To drag a device to a preferred place, press Enter.
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system has
started.
Shortcut to Temporarily Override Boot Order
To boot one time from a device other than the default device specied in Boot Order, restart the computer
and press Esc (to access the Startup menu) and then F9 (Boot Menu), or only F9 (skipping the Startup
menu) when the monitor light turns green. After POST is completed, a list of bootable devices is displayed.
Use the arrow keys to select the preferred bootable device and press Enter. The computer then boots
from the selected non-default device for this one time.
Secure Boot
Conguration
Congure Legacy Support and Secure Boot
Legacy Support – Lets you turn o all legacy support on the computer, including booting to DOS, running
legacy graphics cards, booting to legacy devices, and so on. Windows 7 for instance requires legacy
support, whereas Windows 8 does not.
Secure Boot – Lets you make sure an operating system is legitimate before booting to it, making Windows
resistant to malicious modication from preboot to full OS booting, preventing rmware attacks. UEFI and
Windows Secure Boot only allow code signed by pre-approved digital certicates to run during the
rmware and OS boot process.
Default is ‘Legacy Support Enable and Secure Boot Disable’ for Windows 7 and other non-Windows
congurations. Default is ‘Legacy Support Disable and Secure Boot Enable’ for Windows 8.1 and later
congurations.
Secure Boot Key Management
Lets you manage the custom key settings.
Clear Secure Boot Keys
Lets you delete any previously loaded custom boot keys. Clearing keys will disable secure boot. Default is
disabled.
Reset Secure Boot keys to factory defaults
Default is disabled.
Enable MS UEFI CA key
Disabling this setting alters the Secure Boot key list to further restrict the allowed software
components. Set this option to ‘disable’ to support Device Guard.
System Options Congure Storage Controller for RAID (enable/disable)
Lets you enable onboard RAID. Default is disabled.
POST Prompt for RAID Conguration (Intel only)
When disabled, the prompt for ‘RAID option ROM’ in legacy mode is suppressed.
SVM CPU Virtualization (AMD only)
Controls the virtualization features of the processor. Changing this setting requires turning the computer
o and then back on. Default is disabled.
Virtualization Technology (VTx) (Intel only)
Controls the virtualization features of the processor. Changing this setting requires turning the computer
o and then back on. Default is disabled.
74 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Virtualization Technology for Directed I/O (VTd) (Intel only)
Controls virtualization DMA remapping features of the chipset. Changing this setting requires turning the
computer o and then back on. Default is disabled.
PCI Express Slot x (enable/disable)
Lets you disable individual expansion slots.
Allow PCIe/PCI SERR# Interrupt (enable/disable)
Allows PCI devices to report PCI/PCIe System Error signals, such as address parity errors, data parity
errors, and critical errors other than parity. Default is enabled.
Power Button Override (disable/4 sec/15 sec)
Lets you disable or enable and select the number of seconds you have to hold down the power button for
it to force the system to power o. Default is ‘4 sec’.
Built-In Device Options Embedded LAN Controller
Select to show the device in the operating system. Default is enabled.
Wake On LAN
Lets you either disable the Wake On LAN feature, or congure where the computer boots, including the
network or hard drive. Default is Boot to Network.
Dust Filter
Select to enable the Dust Filter replacement reminder, which can be set for 15, 30, 60, 90, 120, or 180
days. The reminder will show during POST after the reminder timer has expired.
Video Memory Size
Use this option to manage graphics memory allocation. The value you choose is allocated permanently to
graphics and is unavailable to the operating system.
Audio Device
Select to show the device in the operating system. Default is enabled.
Internal Speakers (does not aect external speakers)
Clear to disable the chassis speaker or speakers. This function is applicable to normal audio playback in
the operating system and does not aect the error or warning beeps during POST. Default is enabled.
Integrated Microphone
Clear to disable the integrated microphone. This does not aect devices plugged into audio jacks. Default
is enabled.
Integrated Camera
Clear to disable the integrated webcam. Default is enabled.
Increase Idle Fan Speed(%)
Sets idle fan speed percentage. This setting only changes the minimum fan speed. The fan is still
automatically controlled.
Fingerprint Device
Select to show the device in the operating system. Default is enabled.
Touch Panel
Clear to disable the display panel touch feature. Default is enabled.
Port Options Allows you to hide the following ports from the operating system:
●
Serial port A
Computer Setup (F10) Utilities 75
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
●
Serial port B
●
SATA0
●
SATA1
●
SATA2
●
Front USB ports
●
Rear USB ports
●
Media card reader
Restrict USB Devices
Specify the following categories of USB devices to enable:
●
Allow all USB devices
●
Allow only keyboard and mouse
●
Allow all but storage devices and hubs.
When some devices are restricted, the system will disable USB ports that do not meet the allowed
criteria. This feature is usually combined with similar policies within the operating system since USB
devices can be moved to dierent ports. The ports disabled by the BIOS will remain disabled until the
system is restarted.
Option ROM Launch
Policy
Power Management
Options
These policies control whether Legacy Option ROMs or UEFI drivers are loaded. Default is ‘All legacy’ for
Windows 7 and other non-Windows congurations. Default is ‘All UEFI’ for Windows 8.1 or later.
Congure Option ROM Launch Policy
●
All legacy
●
All UEFI
●
All UEFI except video
Runtime Power Management (enable/disable)
Allows certain operating systems to reduce processor voltage and frequency when the current software
load does not require the full capabilities of the processor. Default is enabled.
Extended Idle Power States (enable/disable)
Allows certain operating systems to decrease the processors power consumption when the processor is
idle. Default is enabled.
S5 Maximum Power Savings (enable/disable)
Enabling this feature reduces the power of the system as much as possible in the S5 state. Power is
removed from the wake up circuitry, the expansion slots, and any management features while in S5.
Default is disabled.
SATA Power Management (enable/disable)
Enables or disables SATA bus and/or device power management. Default is enabled.
PCI Express Power Management (enable/disable)
Enabling this option permits the PCI Express links to use Active Power State Management (ASPM) to enter
lower power states while not in use. Default is enabled.
Unique Sleep State Blink Rates (enable/disable)
This feature is designed to provide a visual indication of what sleep state the system is in. Each sleep
state has a unique blink pattern. Default is disabled.
NOTE: A normal shutdown goes to the S4 state for Windows 8 or later.
76 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
S0 (On) = Solid white LED.
S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) — repeated
cycles of 3 blinks and a pause.
S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) —
repeated cycles of 4 blinks and a pause.
S5 (Soft O) = LED is o.
Power On from Keyboard Ports (enable/disable)
When enabled, this feature allows a key press to power on the system when it is o (S5 state). If using a
USB keyboard, it must be plugged into one of the rear ports labeled with the keyboard icon. Default is
disabled.
Remote Management
Options
USB Key Provisioning Support (enable/disable) Default is disabled.
USB Redirection Support (enable/disable). Default is enabled.
USB redirection allows USB devices plugged into a client computer to be transparently redirected to the
guest operating system.
SOL Terminal Emulation Mode (ANSI / VT100). Default is ANSI.
SOL terminal emulation mode is only activated during remote AMT redirection operations. The emulation
options allow administrators to select which mode works best with their console.
Show Uncongure ME Conrmation Prompt (enable/disable). Default is enabled.
Verbose Boot Messages (enable/disable). Default is enabled.
Verbose boot shows additional logging information during the boot. mainly for debugging if something
goes wrong during bootup.
Watchdog Timer (enable/disable). Default is enabled.
Allows you to set amount of time for a operating system and BIOS watchdog alert to be sent if the timers
are not deactivated. BIOS watchdog is deactivated by BIOS and would indicate that a halt occurred during
execution if the alert is sent to the management console. An operating system alert is deactivated by the
operating system image and would indicate that a hang occurred during its initialization.
●
OS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
●
BIOS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
CIRA Timeout (min.) (1/2/3/4/Never)
CIRA is Customer Initiated Remote Assistance, an Intel service to help users employing Active
Management Technology (AMT).
Computer Setup (F10) Utilities 77
Recovering the Conguration Settings
This method of recovery requires that you rst perform the Save to Removable Media command with the
Computer Setup (F10) Utility before Restore is needed. (See Computer Setup–Main on page 69 in the
Computer Setup—File table.)
The Save to Removable Media option creates a le named HPSETUP.TXT on an inserted USB ash media
device. This le can be edited to change the settings on Restore. An asterisk (*) marks the selected option for
a setting.
NOTE: It is recommended that you save any modied computer conguration settings to a USB ash media
device and save the device for possible future use.
To restore the conguration, insert the USB ash media device with the saved conguration and perform the
Restore from Removable Media command with the Computer Setup (F10) Utility. (See Computer Setup–Main
on page 69 in the Computer Setup—File table.)
78 Chapter 5 Computer Setup (F10) Utility
6 Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard
drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the
computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specic error messages that may appear on the screen during Power-On Self-Test
(POST) at startup, refer to POST error messages and diagnostic front panel LEDs and audible codes
on page 111.
Safety and comfort
WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may
result in discomfort or serious injury. Refer to the Safety & Comfort Guide at http://www.hp.com/ergo for
more information on choosing a workspace and creating a safe and comfortable work environment. For more
information, refer to the Safety & Regulatory Information guide.
Before you call for technical support
If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact
problem before calling for technical support.
●
Run the HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup. Refer to Computer Setup (F10) Utility on page 67 for
more information.
●
Check the Power LED on the front of the computer to see if it is ashing red. The ashing lights are error
codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel
LEDs and audible codes on page 111 for more information.
●
If the screen is blank, plug the monitor into a dierent video port on the computer if one is available. Or,
replace the monitor with a monitor that you know is functioning properly.
●
If you are working on a network, plug another computer with a dierent cable into the network
connection. There may be a problem with the network plug or cable.
●
If you recently added new hardware, remove the hardware and see if the computer functions properly.
●
If you recently installed new software, uninstall the software and see if the computer functions properly.
●
Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting
the operating system, use “Last Known Conguration.”
●
Refer to the comprehensive online technical support at http://www.hp.com/support.
●
Refer to Helpful hints on page 80 in this guide.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with selfsolve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat
feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online support
information, software and drivers, proactive notication, and worldwide community of peers and HP experts.
Safety and comfort 79
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your
service call is handled properly:
●
Be in front of your computer when you call.
●
Write down the computer serial number, product ID number, and monitor serial number before calling.
●
Spend time troubleshooting the problem with the service technician.
●
Remove any hardware that was recently added to your system.
●
Remove any software that was recently installed.
●
Restore the system from the Recovery Disc Set that you created or restore the system to its original
factory condition in System Software Requirement Disks (SSRD).
CAUTION: Restoring the system will erase all data on the hard drive. Be sure to back up all data les before
running the restore process.
NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized service provider
or dealer.
Helpful hints
If you encounter problems with the computer, monitor, or software, see the following list of general
suggestions before taking further action:
●
Check that the computer and monitor are plugged into a working electrical outlet.
●
Check that the voltage select switch (some models) is set to the appropriate voltage for your region
(115V or 230V).
●
Check that the computer is turned on and the white power light is on.
●
Check that the monitor is turned on and the green monitor light is on.
●
Check the Power LED on the front of the computer to see if it is ashing red. The ashing lights are error
codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel
LEDs and audible codes on page 111 for more information.
●
Turn up the brightness and contrast controls of the monitor if the monitor is dim.
●
Press and hold any key. If the system beeps, then the keyboard should be operating correctly.
●
Check all cable connections for loose connections or incorrect connections.
●
Wake the computer by pressing any key on the keyboard or pressing the power button. If the system
remains in suspend mode, shut down the computer by pressing and holding the power button for at
least four seconds then press the power button again to restart the computer. If the system will not shut
down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if it is
set to power on automatically as soon as power is restored in Computer Setup. If it does not restart,
press the power button to start the computer.
●
Recongure the computer after installing a non-plug and play expansion board or other option. See
Solving Hardware Installation Problems on page 99 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.
80 Chapter 6 Troubleshooting without diagnostics
●
If you have installed an operating system other than the factory-installed operating system, check to be
sure that it is supported on the system.
●
If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded
video on some models only) and a single monitor, the monitor must be plugged into the monitor
connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors
are disabled and if the monitor is connected into these ports, the monitor will not function. You can
select which source will be the default VGA source in Computer Setup.
CAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the
system board. You must disconnect the power cord from the power source before opening the computer to
prevent system board or component damage.
Solving general problems
You may be able to easily resolve the general problems described in this section. If a problem persists and you
are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an
authorized dealer or reseller.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system
board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect
the power cord from the wall outlet and allow the internal system components to cool before touching.
Cannot access the Computer Setup (F10) Utility when booting the computer.
Cause Solution
The Computer Setup (F10) Utility is set to “fast boot” causing the
F10 access screen to display too briey when booting the
computer.
Computer appears locked up and will not turn o when the power button is pressed.
Cause Solution
Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds
Computer will not respond to keyboard or mouse.
Cause Solution
Computer is in Sleep state. To resume from Sleep state, press the power button.
Before turning on the computer, press and hold F10. Turn on the
computer and continue to hold F10 until the Computer Setup
(F10) Utility is displayed.
- or –
Follow the Windows instructions for rebooting the computer into
the Computer Setup (F10) Utility.
until the computer turns o.
2. Disconnect the power cord from the electrical outlet.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
System has locked up. Restart computer.
Solving general problems 81
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.
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
Reset the date and time under Control Panel (Computer Setup
can also be used to update the RTC date and time). If the problem
persists, replace the RTC battery. See the Removal and
Replacement section for instructions on installing a new battery,
or contact an authorized dealer or reseller for RTC battery
replacement.
To access Control Panel in Windows 7, select Start, and then
select Control Panel.
To access Control Panel in Windows 8.1, from the Start screen,
type c, and then select Control Panel from the list of
applications.
To access Control Panel in Windows 10, type control panel in
the taskbar search box, and then select Control Panel.
internal system speaker is not muted (this setting does not
aect the external speakers).
2. Make sure the external speakers are properly connected and
powered on and that the speakers' volume control is set
correctly.
3. Use the system volume control available in the operating
system to make sure the speakers are not muted or to
increase the volume.
Cannot remove computer cover or access panel.
Cause Solution
Smart Cover Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.
Poor performance.
Cause Solution
Processor is too hot. 1. Make sure airow to the computer is not blocked. Leave a
82 Chapter 6 Troubleshooting without diagnostics
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.
10.2-cm (4-inch) clearance on all vented sides of the
computer and above the monitor to permit the required
airow.
2. Make sure fans are connected and working properly (some
fans only operate when needed).
Poor performance.
Cause Solution
3. Make sure the processor heat sink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on the
hard drive.
Low on memory. Add more memory.
Hard drive fragmented. Defragment hard drive.
Program previously accessed did not release reserved memory
back to the system.
Virus resident on the hard drive. Run virus protection program.
Too many applications running. 1. Close unnecessary applications to free up memory.
Restart the computer.
2. Add more memory.
3. Some applications run in the background and can be closed
by right-clicking on their corresponding icons in the task
tray. To prevent these applications from launching at
startup:
In Windows 7:
a. Go to Start > All Programs > Accessories > Run
b. Type msconfig, and then press Enter.
c. On the Startup tab of the System Conguration Utility,
clear applications that you do not want to launch
automatically, and the click OK.
In Windows 8.1:
a. On the Start screen, right-click, and then select the All
apps icon.
b. Under Windows System, click Run.
c. Type msconfig, and then press Enter.
d. On the Startup tab of the System Conguration Utility,
clear applications that you do not want to launch
automatically, and the click OK.
In Windows 10:
a. Type msconfig in the taskbar search box, and then
select mscong.
b. On the Startup tab of the System Conguration Utility,
click Open Task Manager.
c. Select applications that you do not want to launch
automatically, and the click Disable.
Some software applications, especially games, are stressful on
the graphics subsystem.
Cause unknown. Restart the computer.
1. Lower the display resolution for the current application or
consult the documentation that came with the application
for suggestions on how to improve performance by
adjusting parameters in the application.
2. Add more memory.
3. Upgrade the graphics solution.
Solving general problems 83
Computer powered o automatically and the Power LED ashes red four times and then white two times.
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
System does not power on and the LEDs on the front of the computer are not ashing.
Cause Solution
System unable to power on. Press and hold the power button for less than 4 seconds. If the
1. Ensure that the computer air vents are not blocked and the
processor cooling fan is running.
2. Open the access panel, press the power button, and see if
the processor fan (or other system fan) spins. If the fan does
not spin, make sure the fan cable is plugged onto the system
board header.
3. If fan a plugged in and not spinning, replace it.
hard drive LED turns white, then:
1. If equipped with a voltage selector, check that the voltage
selector (located on the rear of the power supply) is set to
the appropriate voltage. Proper voltage setting depends on
your region.
2. Remove the expansion cards one at a time until the 5V_aux
light on the system board turns on.
3. Replace the system board.
OR
Press and hold the power button for less than 4 seconds. If the
hard drive LED does not turn on white then:
1. Check that the unit is plugged into a working AC outlet.
2. Open the access panel and check that the power button
cable is properly connected to the system board.
3. Check that the power supply cables are properly connected
to the system board.
4. Check to see if the 5V_aux light on the system board is
turned on. If it is turned on, then replace the power button
assembly.
5. If the 5V_aux light on the system board is o, then replace
the power supply.
6. Replace the system board.
84 Chapter 6 Troubleshooting without diagnostics
Solving power problems
Common causes and solutions for power problems are listed in the following table.
Power supply shuts down intermittently.
Cause Solution
If equipped with a voltage selector, voltage selector switch on
rear of computer chassis (some models) not switched to correct
line voltage (115V or 230V).
Power supply will not turn on because of internal power supply
fault.
Computer powered o automatically and the Power LED ashes Red two times, once every second, followed by a two second
pause, and the computer beeps two times. (Beeps stop after fth iteration but LEDs continue ashing.)
Computer powered o automatically and the Power LED ashes red four times and then white two times.
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
Power LED ashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps
stop after fth iteration but LEDs continue ashing.)
Computer powered o automatically and the Power LED ashes red three times and then white four times.
Select the proper AC voltage using the selector switch.
Replace the power supply.
1. Ensure that the computer air vents are not blocked and the
processor cooling fan is running.
2. Open the access panel, press the power button, and see if
the processor fan (or other system fan) spins. If the fan does
not spin, make sure the fan cable is plugged onto the system
board header.
3. If fan a plugged in and not spinning, replace it.
Cause Solution
Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the voltage
selector, located on the rear of the power supply (some
models), is set to the appropriate voltage. Proper voltage
setting depends on your region.
2. Open the access panel and ensure the power supply cable is
seated into the connector on the system board.
3. Check if a device is causing the problem by removing ALL
attached devices (such as hard drives or optical drives and
expansion cards). Power on the system. If the system enters
POST, then power o and replace one device at a time and
repeat this procedure until failure occurs. Replace the device
that is causing the failure. Continue adding devices one at a
time to ensure all devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.
Solving power problems 85
Solving hard drive problems
Hard drive error occurs.
Cause Solution
Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and right-click on
Disk transaction problem.
a drive. Select Properties, and then select the Tools tab.
Under Error-checking click Check Now.
In Windows 8.1, on the Start screen type e, and then select
File Explorer from the list of applications. In the left
column, expand Computer, right-click on a drive, select
Properties, and then select the Tools tab. Under Error
checking click Check.
In Windows 10, type file in the taskbar search box, and
then select File Explorer from the list of applications. In the
left column, expand This PC, right-click on a drive, select
Properties, and then select the Tools tab. Under Error
checking click Check.
2. Use a utility to locate and block usage of bad sectors. If
necessary, reformat the hard disk.
Cause Solution
Either the directory structure is bad or there is a problem with a
le.
Drive not found (identied).
Cause Solution
Cable could be loose. Check cable connections.
The system may not have automatically recognized a newly
installed device.
In Windows 7, click Start, expand Computer, and right-click on a
drive. Select Properties, and then select the Tools tab. Under
Error-checking click Check Now.
In Windows 8.1, on the Start screen type e, and then click File
Explorer from the list of applications. In the left column, expand
Computer, right-click on a drive, select Properties, and then
select the Tools tab. Under Error checking click Check.
In Windows 10, type file in the taskbar search box, and then
select File Explorer from the list of applications. In the left
column, expand This PC, right-click on a drive, select Properties,
and then select the Tools tab. Under Error checking click Check.
See reconguration directions in the Solving Hardware
Installation Problems on page 99 section. If the system still
does not recognize the new device, check to see if the device is
listed within Computer Setup. If it is listed, the probable cause is a
driver problem. If it is not listed, the probable cause is a hardware
problem.
If this is a newly installed drive, run the Computer Setup utility
and try adding a POST delay under Advanced > Boot Options.
86 Chapter 6 Troubleshooting without diagnostics
Drive not found (identied).
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
Drive responds slowly immediately after power-up. Run Computer Setup and increase the POST Delay in Advanced >
Nonsystem disk/NTLDR missing message.
Cause Solution
The system is trying to start from the hard drive but the hard
drive may have been damaged.
System les missing or not properly installed. 1. Insert bootable media and restart the computer.
Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive entry in
Bootable hard drive is not attached as rst in a multi-hard drive
conguration.
Run the Computer Setup utility and ensure Device Available is
selected for the device's SATA port in Advanced > Port Options.
Boot Options.
▲
Perform Drive Protection System (DPS) testing in system
ROM.
2. Boot to the windows installation media and select the
recovery option. If only a restore kit is available, then select
the File Backup Program option, and then restore the
system.
3. Install system les for the appropriate operating system.
the Advanced > Boot Options list.
If attempting to boot from a hard drive, ensure it is attached to
the system board dark blue SATA connector.
Bootable hard drive is not listed rst in the Boot Order. Run the Computer Setup utility and select Advanced > Boot
Options and ensure the bootable hard drive is listed immediately
under the Hard Drive entry.
Computer will not boot from hard drive.
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
Boot order is not correct. Run the Computer Setup utility and change boot sequence in
Hard drive is damaged. Observe if the front panel Power LED is blinking RED and if any
1. Check SATA cable connections.
2. Run the Computer Setup utility and ensure Device Available
is selected for the device's SATA port in Advanced > Port
Options.
Advanced > Boot Options.
beeps are heard. See POST error messages and diagnostic front
panel LEDs and audible codes on page 111 to determine possible
causes for the blinking red and beep codes.
See the Worldwide Limited Warranty for terms and conditions.
Solving hard drive problems 87
Computer seems to be locked up.
Cause Solution
Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not
Solving media card reader problems
Media card will not work in a digital camera after formatting it in Windows.
Cause Solution
respond.
2. Attempt the normal Windows “Shut Down” procedure. If this
fails, press the power button for four or more seconds to
turn o the power. To restart the computer, press the power
button again.
By default, Windows will format any media card with a capacity
greater than 32MB with the FAT32 format. Some digital cameras
use the FAT (FAT16 & FAT12) format and can not operate with a
FAT32 formatted card.
A write-protected or locked error occurs when attempting to write to the media card.
Cause Solution
Media card is locked. Locking the media card is a safety feature
that prevents writing to and deleting from an SD/Memory
Stick/PRO card.
Can not write to the media card.
Cause Solution
The media card is a read-only memory (ROM) card. Check the manufacturer’s documentation included with your card
Media card is locked. Locking the media card is a safety feature
that prevents writing to and deleting from an SD/Memory
Stick/PRO card.
Either format the media card in the digital camera or select FAT
le system to format the media card in a computer with Windows.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a Memory
Stick/PRO card, make sure that the lock tab located on the bottom
of the Memory Stick/PRO card is not in the locked position.
to see if it writable. Refer to the previous section for a list of
compatible cards.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a Memory
Stick/PRO card, make sure that the lock tab located on the bottom
of the Memory Stick/PRO card is not in the locked position.
Unable to access data on the media card after inserting it into a slot.
Cause Solution
The media card is not inserted properly, is inserted in the wrong
slot, or is not supported.
88 Chapter 6 Troubleshooting without diagnostics
Ensure that the card is inserted properly with the gold contact on
the correct side. The green LED will light if inserted properly.
Do not know how to remove a media card correctly.
Cause Solution
The computer’s software is used to safely eject the card. In Windows 7, click Start, select Computer, right-click on the
corresponding drive icon, and then select Eject. Pull the card out
of the slot.
In Windows 8.1, on the Start screen, type e, and then click File
Explorer from the list of applications. Expand Computer, rightclick on the corresponding drive icon, and then select Eject. Pull
the card out of the slot.
In Windows 10, type file in the taskbar search box, and then
select File Explorer from the list of applications. In the left
column, expand This PC, right-click on the corresponding drive
icon, and then select Eject. Pull the card out of the slot.
NOTE: Never remove the card when the green LED is ashing
After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the
computer.
Cause Solution
The operating system needs time to recognize the device if the
reader was just installed into the computer and you are turning
the PC on for the rst time.
After inserting a media card in the reader, the computer attempts to boot from the media card.
Cause Solution
The inserted media card has boot capability. 1. If you do not want to boot from the media card, remove it
Solving display problems
If you encounter display problems, see the documentation that came with the monitor and to the common
causes and solutions listed in the following table.
Blank screen (no video).
Cause Solution
Wait a few seconds so that the operating system can recognize
the reader and the available ports, and then recognize the media
inserted in the reader.
during boot or do not select the option to boot from the
inserted media card during the boot process.
2. During POST (Power On Self-Test), press F9 to modify the
boot menu.
3. Change the boot sequence in F10 Computer Setup.
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Bad monitor. Try a dierent monitor.
The cable connections are not correct. Check the cable connection from the monitor to the computer and
to the electrical outlet.
Solving display problems 89
Blank screen (no video).
Cause Solution
You may have a screen blanking utility installed or energy saver
features are enabled.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
You are using a xed-sync monitor and it will not sync at the
resolution chosen.
Computer is in Sleep state. Press the power button to resume from Sleep state.
Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the
Monitor settings in the computer are not compatible with the
monitor.
Press any key or click the mouse button and type your password
(if set).
Reash the system ROM with the latest BIOS image.
Be sure that the monitor can accept the same horizontal scan rate
as the resolution chosen.
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.
motherboard or an add-in card. Try moving the monitor
connection to a dierent connector on the back of the computer
1. In Control Panel, select Category from the View by list, then
under Appearance and Personalization, select Adjust
screen resolution.
To access Control Panel in Windows 7, click Start, and then
select Control Panel.
To access Control Panel in Windows 8.1, from the Start
screen, type c, and then select Control Panel from the list of
applications.
To access Control Panel in Windows 10, type control
panel in the taskbar search box, and then select Control
Panel from the list of applications.
2. Expand the Resolution box, and then use the sliding control
to reset the resolution.
Monitor is congured to use an input that is not active. Use the monitor's on-screen menu controls to select the input
Blank screen and the power LED ashes Red ve times, once every second, followed by a two second pause, and the computer
beeps ve times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
Pre-video memory error. 1. Reseat DIMMs. Power on the system.
90 Chapter 6 Troubleshooting without diagnostics
that is being driven by the system. Refer to the monitor's user
documentation for more information on the on-screen controls
and settings.
2. Replace DIMMs one at a time to isolate the faulty module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Blank screen and the power LED ashes Red six times, once every second, followed by a two second pause, and the computer
beeps six times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card (if applicable). Power on the
system.
2. Replace the graphics card (if applicable).
3. Replace the system board.
For systems with integrated graphics, replace the system board.
Blank screen and the power LED ashes Red seven times, once every second, followed by a two second pause, and the computer
beeps seven times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
System board failure (ROM detected failure prior to video). Replace the system board.
Monitor does not function properly when used with energy saver features.
Cause Solution
Monitor without energy saver capabilities is being used with
energy saver features enabled.
Dim characters.
Cause Solution
The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.
Cables are not properly connected. Check that the graphics cable is securely connected to the
Blurry video or requested resolution cannot be set.
Cause Solution
If the graphics controller was upgraded, the correct graphics
drivers may not be loaded.
Monitor is not capable of displaying requested resolution. Change requested resolution.
Graphics card is bad. Replace the graphics card.
Disable monitor energy saver feature.
graphics card (if applicable) or video connector and the monitor.
Install the video drivers included in the upgrade kit.
Solving display problems 91
The picture is broken up, rolls, jitters, or ashes.
Cause Solution
The monitor connections may be incomplete or the monitor may
be incorrectly adjusted.
Monitor needs to be degaussed. Degauss the monitor. Refer to the documentation that came with
Image is not centered.
Cause Solution
Position may need adjustment. Press the monitor's Menu button to access the OSD menu. Select
“No Connection, Check Signal Cable” displays on screen.
Cause Solution
Monitor video cable is disconnected. Connect the video cable between the monitor and computer.
1. Be sure the monitor cable is securely connected to the
computer.
2. In a two-monitor system or if another monitor is in close
proximity, be sure the monitors are not interfering with each
other’s electromagnetic eld by moving them apart.
3. Fluorescent lights or fans may be too close to the monitor.
the monitor for instructions.
ImageControl/ Horizontal Position or Vertical Position to adjust
the horizontal or vertical position of the image.
CAUTION: Ensure that the computer power is o while
connecting the video cable.
“Out of Range” displays on screen.
Cause Solution
Video resolution and refresh rate are set higher than what the
monitor supports.
92 Chapter 6 Troubleshooting without diagnostics
Restart the computer and enter Safe Mode. Change the settings to
a supported setting then restart the computer so that the new
settings take eect.
To enter Safe Mode in Windows 7:
1. Restart the computer.
2. Press and hold the F8 key as your computer restarts, before
the Windows logo appears. If the Windows logo appears,
you must restart the computer and try again.
3. On the Advanced Boot Options screen, use the arrow keys to
highlight the safe mode option you want, and then press
Enter.
4. Log on to your computer with a user account that has
administrator rights.
When your computer is in safe mode, Safe Mode displays in
the corners of your monitor. To exit safe mode, restart your
computer and let Windows start normally.
To enter Safe Mode in Windows 8.1:
Loading...