Maintenance and Service Guide
HP EliteDesk 800 G3 TWR Business PC
HP EliteDesk 880 G3 TWR Business PC
© Copyright 2017 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: January 2017
Document Part Number: 913316-001
Product notices
This user guide describes features that are
common to most models. Some features may
not be available on your computer.
This guide describes features that are common
to most models. Some features may not be
available on your computer.
In accordance with Microsoft’s support policy,
HP does not support the Windows® 8 or
Windows 7 operating system on products
congured with Intel and AMD 7th generation
and forward processors or provide any
Windows 8 or Windows 7 drivers on
http://www.support.hp.com.
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.
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
Front panel components ........................................................................................................................................ 2
Rear panel components ......................................................................................................................................... 3
Serial number location .......................................................................................................................................... 4
2 Illustrated parts catalog ................................................................................................................................ 5
TWR chassis spare parts ........................................................................................................................................ 5
Computer major components ............................................................................................................. 5
Miscellaneous parts ............................................................................................................................. 7
Boards, cards, and ports ..................................................................................................................... 8
Cables and adapters ............................................................................................................................ 9
Drives ................................................................................................................................................. 10
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 11
Electrostatic discharge information .................................................................................................................... 11
Generating static ............................................................................................................................... 11
Preventing electrostatic damage to equipment ............................................................................... 12
Personal grounding methods and equipment .................................................................................. 12
Grounding the work area ................................................................................................................... 12
Recommended materials and equipment ........................................................................................ 13
Operating guidelines ........................................................................................................................................... 13
Routine care ......................................................................................................................................................... 14
General cleaning safety precautions ................................................................................................ 14
Cleaning the Computer Case ............................................................................................................. 14
Cleaning the keyboard ....................................................................................................................... 14
Cleaning the monitor ......................................................................................................................... 15
Cleaning the mouse ........................................................................................................................... 15
Service considerations ......................................................................................................................................... 15
Power supply fan ............................................................................................................................... 15
Tools and software Requirements .................................................................................................... 15
Screws ............................................................................................................................................... 16
Cables and connectors ...................................................................................................................... 16
Hard Drives ........................................................................................................................................ 16
Lithium coin cell battery .................................................................................................................... 16
SATA hard drives .................................................................................................................................................. 17
v
SATA hard drive cables ......................................................................................................................................... 17
SATA data cable ................................................................................................................................. 17
SMART ATA drives ................................................................................................................................................ 17
Cable management .............................................................................................................................................. 18
4 Removal and replacement procedures – Microtower (MT) chassis .................................................................... 19
Preparation for disassembly ............................................................................................................................... 19
Access panel ......................................................................................................................................................... 20
Front bezel ........................................................................................................................................................... 21
Front bezel security ............................................................................................................................................. 22
Removing bezel blanks ........................................................................................................................................ 23
Optional front bezel dust lter ............................................................................................................................ 24
Memory ................................................................................................................................................................ 25
Populating DIMM sockets .................................................................................................................. 25
Removing and installing DIMMs ........................................................................................................ 26
Drive cage ............................................................................................................................................................ 28
Expansion cards ................................................................................................................................................... 30
Drives ................................................................................................................................................................... 35
Drive positions ................................................................................................................................... 36
System board connections ................................................................................................................ 37
Installing and removing drives .......................................................................................................... 38
Removing a 5.25-inch drive ............................................................................................ 38
Installing a 5.25-inch drive ............................................................................................. 39
Removing a 9.5 mm slim optical drive ........................................................................... 41
Installing a 9.5 mm slim optical drive ............................................................................ 42
Installing a 9.5 mm slim optical drive ............................................................................ 43
Removing a 3.5-inch hard drive ...................................................................................... 45
Installing a 3.5-inch hard drive ....................................................................................... 46
Removing a 2.5-inch hard drive ...................................................................................... 50
Installing a 2.5-inch hard drive ....................................................................................... 51
Removing and installing an M.2 SSD storage card ......................................................... 52
WLAN module ...................................................................................................................................................... 54
Front I/O and power switch assembly ................................................................................................................. 55
Fan sink ................................................................................................................................................................ 57
Processor ............................................................................................................................................................. 59
Speaker ................................................................................................................................................................ 60
Rear fan ................................................................................................................................................................ 61
Hood lock (solenoid) ............................................................................................................................................ 62
Hood sensor ......................................................................................................................................................... 63
Power supply ....................................................................................................................................................... 64
Option board ........................................................................................................................................................ 67
vi
Antennas .............................................................................................................................................................. 68
System board ....................................................................................................................................................... 72
System board callouts ....................................................................................................................... 73
5 Computer Setup (F10) Utility ........................................................................................................................ 75
Computer Setup (F10) Utilities ............................................................................................................................ 75
Using Computer Setup (F10) Utilities ................................................................................................ 75
Computer Setup–Main ....................................................................................................................... 77
Computer Setup—Security ............................................................................................................... 79
Computer Setup—Advanced ............................................................................................................. 81
Computer Setup—UEFI Drivers ......................................................................................................... 86
Recovering the Conguration Settings ............................................................................................................... 86
6 Troubleshooting without diagnostics ............................................................................................................ 87
Safety and comfort .............................................................................................................................................. 87
Before you call for technical support .................................................................................................................. 87
Helpful hints ........................................................................................................................................................ 88
Solving general problems .................................................................................................................................... 89
Solving power problems ...................................................................................................................................... 93
Solving hard drive problems ................................................................................................................................ 94
Solving media card reader problems ................................................................................................................... 96
Solving display problems .................................................................................................................................... 97
Solving audio problems ..................................................................................................................................... 101
Solving printer problems ................................................................................................................................... 103
Solving keyboard and mouse problems ............................................................................................................ 104
Solving Hardware Installation Problems ........................................................................................................... 106
Solving Network Problems ................................................................................................................................ 107
Solving memory problems ................................................................................................................................ 110
Solving CD-ROM and DVD problems .................................................................................................................. 111
Solving USB ash drive problems ..................................................................................................................... 113
Solving front panel component problems ........................................................................................................ 115
Solving Internet access problems ..................................................................................................................... 115
Solving software problems ............................................................................................................................... 117
7 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 118
POST numeric codes and text messages .......................................................................................................... 118
Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 123
8 Password security and resetting CMOS ........................................................................................................ 125
Resetting the password jumper ........................................................................................................................ 125
vii
Clearing and resetting the BIOS ........................................................................................................................ 127
9 Using HP PC Hardware Diagnostics (UEFI) ..................................................................................................... 128
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 128
10 Backing up, restoring, and recovering ........................................................................................................ 130
Backing up, restoring, and recovering in Windows 10 ...................................................................................... 130
Creating recovery media and backups ............................................................................................ 130
Creating HP Recovery media (select products only) .................................................... 130
Using Windows tools ....................................................................................................................... 131
Restore and recovery ...................................................................................................................... 132
Recovering using HP Recovery Manager ...................................................................... 132
What you need to know before you get started ........................................ 132
Using the HP Recovery partition (select products only) ............................ 133
Using HP Recovery media to recover ......................................................... 133
Changing the computer boot order ............................................................ 134
Removing the HP Recovery partition (select products only) ..................... 135
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 135
Creating recovery media and backups ............................................................................................ 135
Guidelines ..................................................................................................................... 136
Creating recovery media with HP Recovery Disc Creator ............................................. 136
Creating recovery media ............................................................................ 136
Backing up your information ........................................................................................ 136
Performing a system recovery ........................................................................................................ 137
Using the Windows recovery tools ............................................................................... 137
Using f11 recovery tools (select products only) .......................................................... 138
Using Windows 7 operating system media .................................................................. 139
Appendix A Battery replacement ................................................................................................................... 140
Appendix B Power Cord Set Requirements ...................................................................................................... 143
General Requirements ....................................................................................................................................... 143
Japanese Power Cord Requirements ................................................................................................................. 143
Country-Specic Requirements ........................................................................................................................ 144
Appendix C Statement of memory volatility ................................................................................................... 145
Nonvolatile memory usage ............................................................................................................................... 147
Questions and answers ..................................................................................................................................... 149
Using HP Sure Start (select models only) .......................................................................................................... 150
viii
Appendix D Specications ............................................................................................................................. 151
TWR Specications ............................................................................................................................................ 151
Index ........................................................................................................................................................... 153
ix
x
1 Product features
Standard conguration features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
NOTE: This computer model can be used in a tower orientation or a desktop orientation.
Standard conguration features 1
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering one or more drive bays.
Front panel components
1 5.25-inch half-height drive bay (behind bezel) 7 Audio-out (headphone) jack
2 Slim optical drive (optional) 8 USB 2.0 port with HP Sleep and Charge
3 SD card reader (optional) 9 USB 2.0 port
4 Power button 10 USB 3.x ports (2)
5 Hard drive activity light 11 USB Type-C charging port
6 Audio-out (headphone)/Audio-in (microphone) combo
jack
NOTE: The light on the power button 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 the Maintenance and Service Guide to interpret the code.
2 Chapter 1 Product features
Rear panel components
Rear panel components
1 Audio-out jack for powered audio devices 6 Audio-in jack
2 DisplayPort monitor connectors (2) 7 RJ-45 (network) jack
3 Optional port (DisplayPort, HDMI, VGA or USB-C)
(USB-C option has alt mode DisplayPort or 15W
output)
4 USB 2.0 ports with wake from S4/S5 (2) 9 Power cord connector
5 USB 3.x ports (4)
NOTE: Your model may have additional optional ports available from HP.
When a device is plugged into either audio jack, a dialog box will appear on the monitor screen asking if you want to use the
jack for a microphone or a headphone. You can also recongure the jacks at any time by double-clicking the Audio Manager
icon in the Windows taskbar.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and/or the
integrated graphics on the system board may be used. The specic graphics card installed and software conguration will
determine the behavior.
The system board graphics can be disabled by changing settings in BIOS F10 Setup.
8 Optional serial port
Rear panel components 3
Serial number location
Each computer has a unique serial number and a product ID number that are located on the exterior of the
computer. Keep these numbers available for use when contacting customer service for assistance.
4 Chapter 1 Product features
2 Illustrated parts catalog
TWR chassis spare parts
Computer major components
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.
Item Description
(1) Front bezel
HP EliteDesk 800 G3 models
HP EliteDesk 880 G3 models
(2) Access panel
(3) System board (includes replacement thermal material)
(4) Fan sink (includes replacement thermal material)
95 W
65 W
(5) Power supply
500W, 90% ecient
TWR chassis spare parts 5
Item Description
250W, 92% ecient
250W, 85% ecient (800 models)
250W, 85% ecient (880 models)
* Memory modules (PC4-2400)
16-GB
8-GB
4-GB
2-GB
* Processors (include replacement thermal material; not illustrated))
Intel Core i7-7700 processor
Intel Core i7-7700K processor
Intel Core i5-7600 processor
Intel Core i5-7500 processor
Intel Core i3-7320 processor
Intel Core i3-7300 processor
Intel Core i3-7100 processor
Intel Core i7-6700 processor
Intel Core i5-6600 processor
Intel Core i5-6500 processor
Intel Core i3-6100 processor
Intel Pentium G4620 processor
Intel Pentium G4600 processor
Intel Pentium G4560 processor
Intel Celeron G3950 processor
Intel Celeron G3930 processor
6 Chapter 2 Illustrated parts catalog
Miscellaneous parts
Item Description
(1) Front I/O assembly
(2) Fan
(3) Hood sensor
(4) Hood lock
(5) Speaker
* Secure Digital (SD) card reader
* Optical drive latch
* Bezel dust lter
* Bezel blank, main
* Bezel blank, slim optical drive
* Rubber feet
* Hard drive grommet
* Mouse
PS2, optical
USB, laser
USB, optical
USB, antimicrobial
USB, washable
TWR chassis spare parts 7
Item Description
USB, hardened
USB, grey
* Keyboards
PS/2 slim
USB grey
USB slim
Wireless keyboard, mouse, and dongle
Boards, cards, and ports
Description
Graphics cards:
Nvidia GeForce GT730 2 GB PCIe x8
Nvidia GeForce GT720 1 GB PCIe x8
AMD Radeon™ RX 480 2 GB FH PCIe x16
AMD Radeon RX 460 2 GB FH PCIe x16
AMD Radeon R7 450 4 GB FH PCIe x16 G5
Nvidia GTX 1080 8 GB FH PCIe x16
Graphics card holder bracket
WLAN modules
Intel 8265 802.11AC 2x2 Wi-Fi +Bluetooth M.2 Combo Card non-VPro
Intel 7265 802.11AC 2x2 Wi-Fi +Bluetooth M.2 Combo Card non-VPro
Intel 3168 802.11AC 2x2 Wi-Fi +Bluetooth M.2 Combo Card non-VPro
Option boards:
HDMI option board
DisplayPort option board
USB 3.1 Type C option board
VGA option board
Serial port
Serial/PS2 port
RS-232 module
RS-232 to PS2 module
Printer port, PCIe card
USB 3.1 Type-C connector, PCIe card
8 Chapter 2 Illustrated parts catalog
Cables and adapters
Item Description
(1) SATA drive power cable
(2) SATA data cable, 6 inch, 2 straight ends
* SATA data cable (RF solution), 6 inch, 2 straight ends
(3) SATA data cable, 6 inch, 1 straight end, 1 angled end
* SATA data cable (RF solution), 6 inch, 1 straight end, 1 angled end
* SATA data cable, 14 inch, 1 straight end, 1 angled end
* SATA data cable (RF solution), 14 inch, 1 straight end, 1 angled end
* SATA data cable, 15 inch, 1 straight end, 1 angled end
* SATA data cable (RF solution), 15 inch, 1 straight end, 1 angled end
* Serial port cable
* Serial/PS2 port cable
* DisplayPort cable, 1.8 m
* DVI to DVI cable
* Internal antennas
* Antenna cover
* Adapters
DisplayPort to HDMI 1.4
DisplayPort to VGA
TWR chassis spare parts 9
Drives
Item Description
DisplayPort to DVI
USB-C to USB 3.0
USB 3.1 Type-C to DisplayPort
Description
Hard drives
2-TB, 7200-rpm, 3.5-inch
1-TB, 7200-rpm, 3.5-inch
1-TB, 7200-rpm, 2.5-inch
1-TB, 7200-rpm,. hybrid SSD, 3.5-inch
1-TB, 5400-rpm,. hybrid SSD, 3.5-inch
500 GB, 7200 rpm, 3.5-inch
500 GB, 7200 rpm, 7 mm
500-GB, 7200-rpm, OPAL2, self-encrypting drive (SED)
500-GB, 5400-rpm, FIPS
500-GB, 5400-rpm, hybrid SSD
Solid-state drives, 2280, 2.5-inch
512-GB, FIPS-140-2
256-GB, FIPS-140-2
256-GB
128-GB
Solid-state drives, 2280, NVMe, M.2
1 TB, TLC
512-GB, MLC
512-GB, TLC
256-GB, MLC
256-GB, TLC
256-GB, PCIe
Optical drives, 9.5 mm
DVD±RW drive
DVD-ROM drive
10 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 11
Preventing electrostatic damage to equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of
sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric
components and accessories.
●
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
●
Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●
Place items on a grounded surface before removing them from their container.
●
Always be properly grounded when touching a sensitive component or assembly.
●
Avoid contact with pins, leads, or circuitry.
●
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
Personal grounding methods and equipment
Use the following equipment to prevent static electricity damage to equipment:
●
Wrist straps are exible straps with a maximum of one-megohm ± 10% resistance in the ground cords.
To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be
connected and t snugly into the banana plug connector on the grounding mat or workstation.
●
Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with
most types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with
a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
Grounding the work area
To prevent static damage at the work area, use the following precautions:
●
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the
work surface and properly grounded tools and equipment.
●
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle
them only at static-free work areas.
●
Turn o power and input signals before inserting and removing connectors or test equipment.
1,500
7,500
15,000
●
Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
●
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam.
●
Use eld service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
12 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 13
●
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 14 before cleaning the computer.
To clean the computer case, follow the procedures described below:
●
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
●
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth
or swab dampened with clear water.
●
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate
quickly and not leave a residue.
●
After cleaning, always wipe the unit with a clean, lint-free cloth.
●
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and
limit the airow.
Cleaning the keyboard
Follow all safety precautions in General cleaning safety precautions on page 14 before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the Computer
Case on page 14.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 14
before following these procedures:
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the
keys.
●
Visible debris underneath or between the keys may be removed by vacuuming or shaking.
●
Canned, pressurized air may be used to clean debris from under the keys. Caution should be used as too
much air pressure can dislodge lubricants applied under the wide keys.
14 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 14.
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 14.
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 15
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.
16 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.
SATA hard drives 17
Cable management
Always follow good cable management practices when working inside the computer.
●
Keep cables away from major heat sources like the heat sink.
●
Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not
designed to take excessive pressure on them.
●
Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts
are moved.
●
When folding a at ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.
●
Some at ribbon cables come prefolded. Never change the folds on these cables.
●
Do not bend any cable sharply. A sharp bend can break the internal wires.
●
Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.
●
Never crease a SATA data cable.
●
Do not rely on components like the drive cage, power supply, or computer cover to push cables down
into the chassis. Always position the cables to lay properly by themselves.
18 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
4 Removal and replacement procedures –
Microtower (MT) chassis
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 11 for initial safety procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Close any open software applications.
3. Exit the operating system.
4. Remove any compact disc or media card from the computer.
5. Turn o the computer and any peripheral devices that are connected to it.
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.
6. Disconnect the power cord from the electrical outlet and then from the computer.
7. 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 19
Access panel
To access internal components, you must remove the access panel:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Slide the access panel release lever to the left (1) so that it locks into place. Then slide the access panel
back (2) and lift it o the computer (3).
To replace the access panel, reverse the disassembly procedures.
20 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Front bezel
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Lift up the three tabs on the top of the bezel (1), and then rotate the bezel o the chassis (2).
To replace the front bezel, reverse the disassembly procedures.
Front bezel 21
Front bezel security
The front bezel can be secured in place by installing a screw through the front of the chassis into the front
bezel.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the silver 6-32 security screw located inside the front bezel.
4. Replace the front bezel.
5. Install the security screw through the inside front of the chassis into the front bezel to secure the bezel
in place.
6. Replace the computer access panel.
22 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Removing bezel blanks
On some models, there may be bezel blanks covering the optical drive bays. You must remove the bezel blank
before installing an optical drive. To remove a bezel blank:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the front bezel (Front bezel on page 21)
4. To remove a 5.25-inch optical drive bezel blank, press inward on the two tabs on the right side of the
(1), and then rotate the blank o the front bezel (2).
blank
To remove a slim optical drive bezel blank, press inward on the tab on the right side of the blank (1), and
then rotate the blank away from the front bezel (2) and slide the left side of the blank out of the slot on
the front bezel (3).
Removing bezel blanks 23
Optional front bezel dust lter
Some models are equipped with an optional front bezel dust lter. You must periodically clean the dust lter
so that the dust collected on the lter does not impede air ow through the computer.
NOTE: The optional front bezel dust lter is available from HP.
To remove, clean, and replace the dust lter:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. To remove the dust lter, use your ngers to separate the lter from the front bezel at the tab locations
shown below.
3. Use a soft brush or cloth to clean dust from the lter. If heavily soiled, rinse the lter clean with water.
To replace the lter, reverse the removal procedures.
24 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Memory
The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM)
dual inline memory modules (DIMMs).
The memory sockets on the system board are populated with at least one preinstalled memory module. 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.
For proper system operation, the DIMMs must adhere to the following specications:
●
●
●
●
●
The computer supports the following:
●
●
●
Industry-standard 288-pin
Unbuered non-ECC PC4-19200 DDR4-2400 MHz-compliant
1.2 volt DDR4-SDRAM memory modules
CAS latency 17 DDR4 2400 MHz (17-17-17 timing)
Mandatory JEDEC SPD information
512 Mb, 1 Gb, 2 Gb, and 4 Gb non-ECC memory technologies
Single-sided and double-sided memory modules
Memory modules constructed with x8 and x16 DDR devices; memory modules constructed with x4
SDRAM are not supported
NOTE: The system does not operate properly if you install unsupported memory modules.
Populating DIMM sockets
There are four memory 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
Memory 25
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.
Removing and installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain
before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to
the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing
memory modules while voltage is present may cause irreparable damage to the memory modules or system
board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important
to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from
having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before beginning
these procedures, ensure that you are discharged of static electricity by
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 19)
2. Remove the access panel (Access panel on page 20)
briey touching a grounded metal
3. To remove a memory module, open both latches of the memory module socket (1), and then remove the
memory module from the socket (2).
4. To install a memory module, open both latches of the memory module socket (1), and insert the
memory module into the socket (2).
NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
Populate the black DIMM sockets before the white DIMM sockets.
For maximum performance, populate the sockets so that the memory capacity is spread as equally as
possible between Channel A and Channel B.
26 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
5. Push the module down into the socket, ensuring that the module is fully inserted and properly seated.
Make sure the latches are in the closed position (3).
6. Replace the computer access panel.
7. Reconnect the power cord and turn on the computer.
8. Lock any security devices that were disengaged when the access panel was removed.
The computer should automatically recognize the additional memory the next time you turn on the computer.
Memory 27
Drive cage
You must remove the drive cage to access components underneath it.
To remove the drive cage:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Disconnect the power cable (1) and data cable (2) from the rear of the hard drive.
3. Push the green drivelock mechanism away from the hard drive bays (1), lift the rear of the drive cage up
(2), and then slide the drive cage back and lift it out of the chassis (3).
4. Use a soft brush or cloth to clean dust from the lter. If heavily soiled, rinse the lter clean with water.
To replace the drive cage, reverse the removal procedures.
When replacing the drive cage, align the rivets on the front of the cage with the slots on the chassis, press the
front of the cage down into the slots, and then slide the cage forward (1). Then press the rear of the cage
down (2) so that the drive lock mechanism latches onto the drive cage (3).
28 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Drive cage 29
Expansion cards
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, x4, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express x16 socket
that is NOT downshifted to a x4.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
4. Release the slot cover retention latch that secures the slot covers by lifting the tab on the latch and
rotating the latch to the open position.
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, remove the appropriate expansion slot
cover on the back of the chassis.
●
Two of the slot covers slide out of the back of the chassis. Pull the slot cover straight up then
away from the inside of the chassis.
30 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
●
The other two slot covers must be removed with a screwdriver. Insert a at-bladed
screwdriver into the slots on the rear of the slot cover (1) and rock the slot cover back and
forth (2) to break it free from the chassis.
Expansion cards 31
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), and then away
from the inside of the chassis (2) to remove it. Be sure not to scrape the card against other
components.
c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion
socket away from the card (1) and carefully rock the card back and forth until the connectors pull
free from the socket. Lift the card straight up (2), and then away from the inside of the chassis (3)
to remove it. Be sure not to scrape the card against other components.
NOTE: If the card is full length, you may need to remove the drive cage to remove the card.
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.
IMPORTANT: 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.
32 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
8. To install a half-length 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 is
seated properly in the expansion card socket.
9. To install a full-length expansion card you must remove the hard drive cage to allow room for installing
the card (Drive cage on page 28).
a. To install a full-length 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).
b. Replace the drive cage (Drive cage on page 28).
c. Connect the power and data cables to the rear of the drives in the hard drive cage.
Expansion cards 33
10. Rotate the slot cover retention latch back in place to secure the expansion card.
11. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if
needed.
12. Replace the computer access panel.
13. Reconnect the power cord and turn on the computer.
14. Lock any security devices that were disengaged when the computer access panel was removed.
15. Recongure the computer, if necessary.
34 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Drives
For a list of available drives, see Drives on page 10.
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 any of the light blue SATA connectors on the system
board (labeled SATA1, SATA2, SATA3, and SATA4).
●
You must install mounting screws for hard drives and 5.25-inch optical drives to ensure the drive will
line up correctly in the drive cage and lock in place. HP has provided four extra 3.5-inch hard drive
mounting screws installed on top of the drive bay.
IMPORTANT: 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, be sure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds such as
monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label the
package “Fragile: Handle With Care.”
Drives 35
Drive positions
Drive positions
1 5.25-inch half-height drive bay
2 2.5-inch hard drive bay
3 3.5-inch secondary hard drive bay
4 9.5 mm slim optical drive bay
5 3.5-inch primary hard drive bay
NOTE: The drive conguration on your computer may be dierent than the drive
conguration shown above.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
36 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
System board connections
Refer to the following illustration and table to identify the system board connectors for your model.
Item 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 SATA 3.0 SATA3 Light blue Slim optical drive
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 SATA0 Dark blue Primary hard drive
13 M.2 WLAN WLAN Black M.2 WLAN card
14 SATA 3.0 SATA4 Light blue Any SATA device other than the primary
15 SATA 3.0 SATA2 Light blue Any SATA device other than the primary
X4PCIEXP white Expansion card
hard drive
hard drive
hard drive
16 M.2 SSD SSD Black M.2 SSD storage card
Drives 37
Installing and removing drives
Removing a 5.25-inch 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 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the front bezel (Front bezel on page 21)
4. Disconnect the power cable (1) and data cable (2) from the rear of the drive.
IMPORTANT: When removing the cables, pull the tab or connector instead of the cable itself to avoid
damaging the cable.
5. Push the green drivelock mechanism towards the optical drive (1), and then slide the drive from the
drive bay (2).
38 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Installing a 5.25-inch drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the front bezel (Front bezel on page 21). If you are installing a drive in a bay covered by a bezel
blank, remove the bezel blank. See Removing bezel blanks on page 23 for more information.
4. If you are installing an optical drive, install four M3 metric mounting screws (not provided) in the lower
holes on each side of the drive.
NOTE: When replacing an optical drive, transfer the four M3 metric mounting screws from the old drive
to the new one.
IMPORTANT: Use only 5 mm long screws as mounting screws. Longer screws can damage the internal
components of the drive.
Drives 39
5. If you are installing a 5.25-inch drive in a vacant drive bay, you may need to remove the metal shield
covering the front of the bay. Insert a at-bladed screwdriver into the slots on the front of the shield (1)
and rock the shield back and forth (2) to break it free from the chassis.
6. Slide the drive into the drive bay, making sure to align the mounting screws with the mounting slots,
until the drive snaps into place.
40 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
7. Connect the power cable (1) and data cable (2) to the rear of the optical drive.
8. Connect the opposite end of the data cable to one of the light blue SATA connectors on the system
board.
NOTE: Refer to System board connections on page 37 for an illustration of the system board drive
connectors.
9. Reassemble the computer.
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 19)
2. Remove the access panel (Access panel on page 20)
3. Disconnect the power cable (1) and data cable (2) from the rear of the drive.
IMPORTANT: When removing the cables, pull the tab or connector instead of the cable itself to avoid
damaging the cable.
Drives 41
4. Push the green release latch on the right rear side of the drive toward the center of the drive (1), and
then slide the drive forward and out of the bay (2).
Installing a 9.5 mm slim optical drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the front bezel (Front bezel on page 21). If you are installing a drive in a bay covered by a bezel
blank, remove the bezel blank. See Removing bezel blanks on page 23 for more information.
4. Disconnect the power cable (1) and data cable (2) from the rear of the drive.
IMPORTANT: When removing the cables, pull the tab or connector instead of the cable itself to avoid
damaging the cable.
42 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
5. Push the green release latch on the right rear side of the drive toward the center of the drive (1), and
then slide the drive forward and out of the bay (2).
Installing a 9.5 mm slim optical drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. If you are installing a slim optical drive in a bay covered by a bezel blank, remove the front bezel and
then remove the bezel blank. See Removing bezel blanks on page 23 for more information.
4. Align the small pin on the release latch with the small hole on the side of the drive and press the latch
rmly onto the drive.
Drives 43
5. Slide the optical drive through the front bezel all the way into the bay (1) so that the latch on the rear of
the drive locks into place (2).
6. Connect the power cable (1) and data cable (2) to the rear of the optical drive.
7. Connect the opposite end of the data cable to one of the light blue SATA connectors on the system
board.
NOTE: Refer to System board connections on page 37 for an illustration of the system board drive
connectors.
8. Reassemble the computer.
44 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
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 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the drive cage (Drive cage on page 28)
4. Remove the drive from the drive cage by pulling the release tab away from the drive (1) and sliding the
drive out of the bay
(2).
5. Remove the four mounting screws (two on each side) from the old drive. You will need these screws if
you install a new drive.
Drives 45
Installing a 3.5-inch hard drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Install mounting screws on the sides of the hard drive using standard 6-32 silver-and-blue mounting
screws.
NOTE: Four extra 6-32 mounting screws for 3.5-inch hard drives are installed on the exterior of the
hard drive bays. Refer to Installing and removing drives on page 38 for an illustration of the extra 6-32
mounting screws location.
If you are replacing a drive, transfer the mounting screws from the old drive to the new drive.
●
Install four silver-and-blue 6-32 mounting screws (two on each side of the drive).
●
You can also install a 2.5-inch hard drive into a 3.5-inch drive bay using an adapter bracket similar
to the example shown below.
–
Slide the 2.5-inch drive into the 3.5-inch adapter bracket.
46 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
–
Secure the drive to the bay adapter bracket by installing four black M3 adapter bracket screws
through the underside of the bracket and into the drive.
Drives 47
–
Install four 6-32 silver-and-blue mounting screws in the adapter bracket (two on each side of
the bracket).
4. Remove the drive cage if it was not already removed (Drive cage on page 28)
5. Slide the drive into the drive bay, making sure to align the mounting screws with the mounting slots,
until the drive snaps into place.
6. Replace the drive cage (Drive cage on page 28)
48 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
7. Connect the power cable (1) and data cable (2) to the rear of the hard drive.
8. 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.
9. Reassemble the computer.
Drives 49
Removing a 2.5-inch hard drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Disconnect the power cable (1) and data cable (2) from the rear of the hard drive.
4. Pull the release lever at the rear of the drive outward (1) and pull the rear of the drive outward (2). Then
slide the front of the drive forward until it stops and pull the drive up and out of the drive bay (3).
50 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Installing a 2.5-inch hard drive
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Install four black-and-blue M3 mounting screws (two on each side of the drive).
NOTE: M3 metric mounting screws can be purchased from HP.
When replacing a drive, transfer the four mounting screws from the old drive to the new drive.
4. Align the front mounting screws on the drive with the J-slots on the sides of the drive bay. Press the
front of the drive into the drive bay, and then slide the drive forward (1). Then press the rear of the drive
into the drive bay (2) so that the drive is secured in place.
Drives 51
5. Connect the power cable (1) and data cable (2) to the rear of the hard drive.
NOTE: If the 2.5-inch hard drive is the primary drive, connect the other end of the data cable to the
dark blue SATA connector on the system board labeled SATA0. If it is a secondary hard drive, connect the
other end of the data cable to one of the light blue SATA connectors on the system board.
6. Reassemble the computer.
Removing and installing an M.2 SSD storage card
NOTE: The computer supports 2230 and 2280 M.2 SSD cards.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. Remove the drive cage (Drive cage on page 28)
4. To remove an M.2 SSD card, remove the screw that secures the card (1), lift the end of the card up (2),
and then slide the card out of the system board connector (3).
52 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
5. To install an M.2 SSD card, slide the pins on the card into the system board connector while holding the
card at approximately a 30° angle (1). Press the other end of the card down (2), and then secure the card
with the screw (3).
6. Replace the drive cage ( Drive cage on page 28) and reassemble the computer.
Drives 53
WLAN module
The WLAN module installs into a connector on the system board.
For a list of available WLAN modules, see Boards, cards, and ports on page 8.
To remove the WLAN module:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19)
2. Remove the access panel (Access panel on page 20)
3. 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 PM2.0×3.0 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.
54 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Front I/O and power switch assembly
The front I/O and power switch assembly is attached to the front of the chassis with one screw. Pull the
assembly away from the front of the chassis to remove.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the computer access panel (Access panel on page 20).
3. Remove the front bezel (Front bezel on page 21).
4. Remove the drive cage (Drive cage on page 28).
5. From the inside of the computer, disconnect the cables from the following system board connectors:
●
FRONT USB (blue connector)
●
PB/LED (black connector)
●
FRONT USB 3.1 (blue connector)
●
FRONT USB 3.1 TYPE C (black connector)
●
FRONT USB (yellow connector)
Front I/O and power switch assembly 55
6. From the front of the computer, remove the Torx T15 screw that secures the assembly to the chassis.
NOTE: Chassis color may vary.
7. Rotate the right side of the assembly away from the computer, and then pull the assembly out of the
front of the chassis while threading the cables through the hole in the front of the chassis.
To reinstall the assembly, reverse the removal procedure.
56 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Fan sink
Two fan sinks are oered – one for 95W processors and one for 65W processors.
CAUTION: The bond between the fan sink and the processor may be very tight.
If the computer will power on, before removing the fan sink, turn on the computer until it warms the fan sink.
Warming the fan sink lessens the bond between the heat sink and the processor, thereby making separating
them easier.
Make sure not to pull the processor out of the socket when you lift the fan sink, especially if you cannot warm
the fan sink prior to removal. Inadvertently removing the processor can damage the pins.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Loosen the four silver captive Torx T15 screws (1) that secure the fan sink to the system board.
4. Disconnect the fan cable from the system board connector labeled CPUFAN (2).
CAUTION: Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even the
downward forces on the processor. The pins on the socket are very fragile and any damage to them may
require replacing the system board.
65W processors
95W processors
Fan sink 57
5. Lift the heat sink from atop the processor.
65W processors
95W processors
When reinstalling the fan sink, make sure that its bottom has been cleaned with an alcohol wipe and fresh
thermal grease has been applied to the top of the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
seat the fan sink on the processor. This is especially important as the pins on the socket are very fragile and
any damage to them may require replacing the system board.
58 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Processor
For a list of available processors, see Computer major components on page 5.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the fan sink (Fan sink on page 57).
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.
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.
Processor 59
Speaker
The speaker is attached to the front of the chassis. Remove it from the inside of the chassis.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the drive cage (Drive cage on page 28).
4. Disconnect the speaker cable from the system board connector labeled SPKR (1).
5. Remove the Torx T15 screw (2) that secures the speaker to the chassis.
6. Slide the speaker to the right, and the remove the speaker from the chassis (3).
To replace the speaker, reverse the removal procedures.
60 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Rear fan
The rear fan is secured to the rear of the chassis with three Phillips screws.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the three silver Phillips screws that secure the fan to the rear of chassis.
4. 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 assembly, reverse the removal procedure. Be sure to orient the air ow out of the chassis.
Rear fan 61
Hood lock (solenoid)
The hood lock is secured to the rear of the chassis with two screws.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. From the rear of the chassis, remove the two security screws that secure the hood lock.
4. From the inside of the chassis, disconnect the cable from the system board connector labeled HLCK (1).
5. Remove the hood lock from the inside of the computer (2).
To install the hood lock, reverse the removal procedure.
62 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Hood sensor
The hood sensor is installed on the top, rear of the chassis.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Disconnect the cable from the system board connector labeled HSENSE (1).
4. Slide the hood sensor out of the slot on the rear of the chassis (2). A tool such as a screwdriver may be
required to pry the hood sensor from the slot.
To install the hood sensor, reverse the removal procedure.
Hood sensor 63
Power supply
For a list of available power supplies, see Computer major components on page 5.
The power supply is secured to the rear of the chassis with three screws. Three cables connect the power
supply to the system board.
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the drive cage (Drive cage on page 28).
4. Remove the three Torx T15 screws that connect the power supply to the rear of the chassis.
5. From the inside of the chassis, remove the power supply cables from the clips built into the bottom of
the chassis.
6. Disconnect the power supply cables from the following system board connector:
●
PWRCMD
64 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
7. Disconnect the power supply cables from the following system board connectors:
●
PWRCPU
●
PWR
Power supply 65
8. Press the release lever at the front of the power supply (1), slide the power supply toward the front of
the computer (2), and then lift the power supply out of the chassis.
To install the power supply, reverse the removal procedure.
66 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
Option board
For a list of available option boards, see Boards, cards, and ports on page 8.
An option board can be installed near the back of the system board that provides an additional connector on
the rear I/O panel.
NOTE: The image in this section shows a serial port expansion board.
To remove the option board:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the two Phillips screws (1) that secure the board to the system board.
4. Lift to disengage the board from the system board connector, and then remove the option board from
the computer (2).
To install the option board, reverse the removal procedures.
Option board 67
Antennas
The antennas route from the WLAN module to the front and the rear of the computer.
To replace the antennas:
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
3. Remove the drive cage (Drive cage on page 28).
4. From the front of the computer, remove the Torx T15 screw that secures the antenna to the computer.
NOTE: Chassis color may vary.
68 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
5. From the inside, rear of the computer, press the tab that secures the antenna cover to the computer.
6. From the outside, rear of the computer, rotate the cover up and o the computer.
Antennas 69
7. Remove the Torx T15 screw that secures the antenna to the computer.
8. From inside of the computer, disconnect both antennas from the WLAN module (1).
70 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
9. Remove both antennas from the tape that secures them to the computer (2), and then thread both
antennas through the holes (front and rear) from the inside to outside of the computer (3).
Reverse the removal procedure to install the WLAN antennas and transceivers.
Antennas 71
System board
1. Prepare the computer for disassembly (Preparation for disassembly on page 19).
2. Remove the access panel (Access panel on page 20).
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 25)
●
Expansion cards (Expansion cards on page 30)
●
Solid-state drive (Removing and installing an M.2 SSD storage card on page 52)
●
WLAN module (WLAN module on page 54)
●
Heat sink (Fan sink on page 57).
●
Processor (Processor on page 59)
4. Disconnect all cables connected to the system board, noting their location for reinstallation.
5. Remove the eight Torx T15 screws that secure the system board to the chassis.
6. Lift the board up and out of the computer.
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.
72 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
System board callouts
Sys Bd Label Color Component Sys Bd Label Color Component
X4PCIEXP White Expansion card PWR White 6-pin main power
X1PCIEXP2 Black Expansion card SPKR White Speaker
X1PCIEXP1 Black Expansion card FRONT USB3.0 Blue Front I/O/power switch
X16PCIEXP White Expansion card SD RDR Black Card reader
COMB Black Optional second serial
port
HLCK Black Hood lock SATA3 Light blue Any SATA Device other
PWRCPU White 4-pin processor power SATA0 Dark blue Primary hard drive
EXT Black Extension board
than the primary hard
drive
System board 73
Sys Bd Label Color Component Sys Bd Label Color Component
CHFAN2 Brown Rear fan connector SATA5 Light blue Any SATA Device other
than the primary hard
drive
XU1 Black Processor SATA1 Light blue Any SATA Device other
than the primary hard
drive
CPUFAN White Processor fan FRONT USB Yellow Front I/O
DIMM4 White Memory module SATA2 Light blue Any SATA Device other
than the primary hard
drive
DIMM3 Black Memory module PSWD Green Clear system passwords
DIMM2 White Memory module CMOS Yellow Reset CMOS
DIMM1 Black Memory module BAT Black RTC battery
PB/LED Black Front I/O/power switch HSENSE White Hood sensor
PWRCMD White Power supply THUNDERBOLT Black Thunderbolt connector
SATAPWR0 Black Drives FRONT AUD Blue Front I/O
74 Chapter 4 Removal and replacement procedures – Microtower (MT) chassis
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 75
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
76 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
Processor type
●
Processor cache size (L1/L2/L3)
●
Processor speed
●
MicroCode revision
●
Processor stepping
●
DIMM size (for each installed module)
●
Firmware
System BIOS version
●
ME Firmware version (Intel only)
●
Video BIOS version
●
Reference code version
●
Super I/O Firmware version
●
USB Type-C controller(s) rmware version
●
Service
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 number
●
Communication
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:
●
Provide detailed system information
Computer Setup (F10) Utilities 77
Table 5-1 Computer Setup—Main (continued)
Option Description
●
Hardware subsystem tests
●
Component tests
●
Show test logs
●
Language selection
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.
Displays current BIOS version information.
●
‘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’. This selection
checks for the latest BIOS release revision on the netowrk and lets you choose whether to download
the BIOS image and update the computer.
NOTE: If MS Windows BitLocker Drive Encryption (BDE) is enabled, you must suspend BDE
temporarily before ashed. Be sure to obtain the BDE recovery password or recovery PIN before
suspending BDE. You can enable BDE after updating the BIOS.
●
BIOS Rollback Policy
Lets you select whether a minimum BIOS version can be allocated. If ‘Restricted rollback to older
BIOS’ is selected, ‘Minimum BIOS version’ becomes active. Select to enter the minimum BIOS version
that can be rolled back to.
■
Unrestricted rollback to older BIOS
■
Restricted rollback to older BIOS
●
Allow BIOS updates using a network
●
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
Change Date and Time Allows you to set system time and date.
Set Machine Unique Data Allows you to set/view data that is unique to each machine such as feature byte, build ID, serial number,
SKU number, product family, and product name.
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.
78 Chapter 5 Computer Setup (F10) Utility
Table 5-1 Computer Setup—Main (continued)
Option Description
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.
Suppress POST Errors Select to suppress most system messages during POST (Power-On Self Test).
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.
Computer Setup—Security
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
Table 5-2 Computer Setup—Security
Option Description
Set up BIOS
Administrator Password
Lets you set and enable a BIOS administrator password, which controls access to the following features:
●
●
●
●
●
●
NOTE: Creating a BIOS user disables the Fast Boot option.
NOTE: If the password is set, it is required to change Computer Setup options, update the BIOS, and
make changes to certain plug and play settings under Windows.
Setup Menu (F10)
3rd Party Option ROM Management (F3)
Update system ROM
WMI commands that change system settings
BIOS Conguration Utility (BCU)
Alternative power-on 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 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’.
Computer Setup (F10) Utilities 79
Table 5-2 Computer Setup—Security (continued)
Option Description
Security Conguration TPM Embedded Security
●
TPM Specication Version
Displays the current TPM version.
●
TPM Device
Lets you set the Trusted Platform Module as available or hidden.
●
TPM State
Select to enable the TPM.
●
ClearTPM
Select to reset the TPM to an unowned state. After the TPM is cleared, it is also turned o. To
temporarily suspend TPM operations, turn the TPM o instead of clearing it.
CAUTION: Clearing the TPM resets it to factory defaults and turns it o. You will lose all created
keys and data protected by those keys.
Utilities Hard Drive Utilities
●
Save/Restore MBR of System Hard Drive
NOTE: Windows 10 systems are generally not formatted to include an MBR. Instead they use GUID
Partition Table (GPT) format, which better supports large hard drives.
Enabling this feature will save the Master Boot Record (MBR) of the system hard drive. If the MBR
gets changed, the user will be prompted to restore the MBR. Default is disabled.
The MBR contains information needed to successfully boot from a disk and to access the data stored
on the disk. Master Boot Record Security may prevent unintentional or malicious changes to the
MBR, such as those caused by some viruses or by the incorrect use of certain disk utilities. It also
allows you to recover the "last known good" MBR, should changes to the MBR be detected when the
system is restarted.
NOTE: Most operating systems control access to the MBR of the current bootable disk; the BIOS
cannot prevent changes that may occur while the operating system is running.
Restores the backup Master Boot Record to the current bootable disk. Default is disabled.
Only appears if all of the following conditions are true:
–
MBR security is enabled
–
A backup copy of the MBR has been previously saved
–
The current bootable disk is the same disk from which the backup copy was saved
CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modied
the MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved
MBR if you are condent that the current bootable disk's MBR has been corrupted or infected with a
virus.
●
Save/Restore GPT of System Hard Drive
Enabling this feature will save the GUID Partition Table (GPT) of the system hard drive. If the GPT is
subsequently changed, the user is prompted to choose whether to restore GPT.
●
DriveLock
Allows you to assign or modify a master or user password for hard drives. When this feature is
enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither is
successfully entered, the hard drive will remain inaccessible until one of the passwords is
successfully provided during a subsequent cold-boot sequence.
80 Chapter 5 Computer Setup (F10) Utility
Table 5-2 Computer Setup—Security (continued)
Option Description
NOTE: This selection will only appear when at least one drive that supports the DriveLock feature
is attached to the system.
CAUTION: Be aware that these settings take place immediately. A save is not necessary.
CAUTION: Be sure to document the DriveLock password. Losing a DriveLock password will render a
drive permanently locked.
After you select a drive, the following options are available:
Set DriveLock Master Password. Sets the drive’s master password but does not enable DriveLock.
Enable DriveLock. Sets the drive’s user password and enables DriveLock.
●
Secure Erase
Lets you select a hard drive to completely erase.
Once a hard drive has been erased with a program that utilizes Secure Erase rmware commands, no
le recovery program, partition recovery program, or other data recovery method will be able to
extract data from the drive.
●
Allow OPAL Hard Drive SID Authentication
System Management
Command
Restore Security
Settings to Default
Allows authorized personnel to reset security settings during a service event. Default is enabled.
This action resets security devices, clears BIOS passwords (not including DriveLock), and restores settings
in the Security menu to factory defaults.
Computer Setup—Advanced
NOTE: Support for specic Computer Setup options may vary depending on the hardware conguration.
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.
CD-ROM Boot. Default is enabled.
USB Storage Boot. Default is enabled.
Network (PXE) Boot. Default is enabled.
After Power Loss. Default is Power O.
■
Power o—causes the computer to remain powered o when power is restored.
■
Power on—causes the computer to power on automatically as soon as power is restored.
■
Previous state—causes the computer to power on automatically as soon as power is restored,
if it was on when power was lost.
Computer Setup (F10) Utilities 81
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option Heading
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.
●
Prompt on Memory Size Change. Default is enabled.
●
Prompt on Fixed Storage Change. Default is disabled.
●
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.
Secure Boot
Conguration
Congure Legacy Support and Secure Boot
Lets you turn o all legacy support on the computer, including booting to DOS, running legacy graphics
cards, booting to legacy devices, and so on.
Lets you make sure an operating system is legitimate before booting to it, making Windows resistant to
malicious modication from preboot to full OS booting, preventing rmware attacks. UEFI and Windows
Secure Boot only allow code signed by pre-approved digital certicates to run during the rmware and OS
boot process.
●
Legacy Support Enable and Secure Boot Disable
●
Legacy Support Disable and Secure Boot Enable
●
Legacy Support Disable and Secure Boot Disable
Default is ‘Legacy Support Disable and Secure Boot Disable’.
Secure Boot Key Management
Lets you manage the custom key settings.
Import Custom Secure Boot keys
Default is disabled.
Clear Secure Boot Keys
Lets you delete any previously loaded custom boot keys. Clearing keys will disable secure boot. Default is
disabled.
Reset Secure Boot keys to factory defaults
Default is disabled.
Enable MS UEFI CA key
Disabling this setting alters the Secure Boot key list to further restrict the allowed software
components. Set this option to ‘disable’ to support Device Guard.
System Options Turbo boost
Intel Turbo Boost Technology (TBT) automatically allows processor cores to run faster than the base
operating frequency if it is operating below power, current, and temperature specication limits. Default
is enabled.
Multi-processor
Use this option to disable multi-processor support under the operating system. Default is enabled.
Virtualization Technology (VTx) (Intel only)
82 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option Heading
Controls the virtualization features of the processor. Changing this setting requires turning the computer
o and then back on. Default is disabled.
Virtualization Technology for Directed I/O (VTd) (Intel only)
Controls virtualization DMA remapping features of the chipset. Changing this setting requires turning the
computer o and then back on. Default is disabled.
PCI Express Slot x (enable/disable)
Lets you disable individual expansion slots. Default is enabled.
M.2 WLAN/BT
Lets you disable the wireless module slot. Default is enabled.
M.2 SSD
Lets you disable the M.2 solid-state drive slot. Default is enabled.
Allow PCIe/PCI SERR# Interrupt (enable/disable)
Allows PCI devices to report PCI/PCIe System Error signals, such as address parity errors, data parity
errors, and critical errors other than parity. Default is enabled.
Power Button Override (disable/4 sec/15 sec)
Lets you disable or enable and select the number of seconds you have to hold down the power button for
it to force the system to power o. Default is ‘4 sec’.
Built-In Device 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.
Increase Idle Fan Speed(%)
Sets idle fan speed percentage. This setting only changes the minimum fan speed. The fan is still
automatically controlled.
Port Options Serial Port B
Lets you disable the port. Default is enabled.
I/O Address B
Lets you specify the address. Default is enabled.
Computer Setup (F10) Utilities 83
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option Heading
Interrupt B
Lets you specify the address. Default is enabled.
Lets you disable the following ports (default is enabled):
●
SATA connectors
●
Front USB ports
●
Rear USB ports
●
USB Legacy Port Charging
Enables USB charging port capability when the system is in hibernate or shutdown state.
●
Front USB Type-C Downstream Charging
Enables USB charging port capability when the system is in hibernate or shutdown state.
Restrict USB Devices
Specify the following categories of USB devices to enable:
●
Allow all USB devices (default)
●
Allow only keyboard and mouse
●
Allow all but storage devices and hubs.
When some devices are restricted, the system will disable USB ports that do not meet the allowed
criteria. This feature is usually combined with similar policies within the operating system since USB
devices can be moved to dierent ports. The ports disabled by the BIOS will remain disabled until the
system is restarted.
USB Type-C Controller Firmware Update
Default is enabled.
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 10 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.
84 Chapter 5 Computer Setup (F10) Utility
Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option Heading
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 10 or later.
S0 (On) = Solid white LED.
S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) — repeated
cycles of 3 blinks and a pause.
S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white LED) —
repeated cycles of 4 blinks and a pause.
S5 (Soft O) = LED is o.
Power On from Keyboard Ports (enable/disable)
When enabled, this feature allows a key press to power on the system when it is o (S5 state). If using a
USB keyboard, it must be plugged into one of the rear ports labeled with the keyboard icon. Default is
disabled.
Remote Management
Options
Active Management (AMT) (Intel only) (enable/disable). Default is enabled.
Allows you to discover, repair, and protect networked computing devices.
USB Key Provisioning Support (enable/disable) Default is disabled.
USB Redirection Support (enable/disable). Default is enabled.
USB redirection allows USB devices plugged into a client computer to be transparently redirected to the
guest operating system.
Uncongure AMT on next boot (Do Not Apply/Apply). Default is ‘Do Not Apply’.
SOL Terminal Emulation Mode (ANSI / VT100). Default is ANSI.
SOL terminal emulation mode is only activated during remote AMT redirection operations. The emulation
options allow administrators to select which mode works best with their console.
Show Uncongure ME Conrmation Prompt (enable/disable). Default is enabled.
Verbose Boot Messages (enable/disable). Default is enabled.
Verbose boot shows additional logging information during the boot. mainly for debugging if something
goes wrong during bootup.
Watchdog Timer (enable/disable). Default is enabled.
Allows you to set amount of time for a operating system and BIOS watchdog alert to be sent if the timers
are not deactivated. BIOS watchdog is deactivated by BIOS and would indicate that a halt occurred during
execution if the alert is sent to the management console. An operating system alert is deactivated by the
operating system image and would indicate that a hang occurred during its initialization.
●
OS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
●
BIOS Watchdog Timer (min.) – (5/10/15/20/25). Default is 5 min.
CIRA Timeout (min.) (1/2/3/4/Never)
CIRA is Customer Initiated Remote Assistance, an Intel service to help users employing Active
Management Technology (AMT).
Computer Setup (F10) Utilities 85
Computer Setup—UEFI Drivers
Lets you restart the computer into the 3rd Party Option ROM Management application. You can start this
application directly by pressing F3 during startup.
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 77 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 77 in the Computer Setup—File table.)
86 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 118.
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 75 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 118 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 88 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 87
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 118 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 106 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.
88 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 89
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 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.
In case of forgotten password, power loss, or computer
malfunction, you must manually disable the Smart Cover lock . A
key to unlock the Smart Cover Lock is not available from HP. Keys
are typically available from a hardware store.
Poor performance.
Cause Solution
Processor is too hot. 1. Make sure airow to the computer is not blocked. Leave a
10.2-cm (4-inch) clearance on all vented sides of the
computer and above the monitor to permit the required
airow.
2. Make sure fans are connected and working properly (some
fans only operate when needed).
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.
90 Chapter 6 Troubleshooting without diagnostics
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