HP 280 G2 Small Maintenance and Service Guide
Maintenance and Service Guide
HP 280 G2 Small Form Factor Business PC
© Copyright 2016 HP Development Company,
L.P. The information contained herein is subject
to change without notice.
AMD is a trademark of Advanced Micro Devices,
Inc. Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel is a trademark of Intel Corporation in the
U.S. and other countries. Windows is either a
registered trademark or trademark of
Microsoft Corporation in the United States
and/or other countries. NVIDIA is a trademark
and/or registered trademark of NVIDIA
Corporation in the U.S. and other countries.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed
as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or
omissions contained herein.
First Edition: August 2016
Document Part Number: 900901-001
Software terms
By installing, copying, downloading, or
otherwise using any software product
preinstalled on this computer, you agree to be
bound by the terms of the HP End User License
Agreement (EULA). If you do not accept these
license terms, your sole remedy is to return the
entire unused product (hardware and software)
within 14 days for a full refund subject to the
refund policy of your seller.
Product notice
This user guide describes features that are
common to most models. Some features may
not be available on your computer.
Not all features are available in all editions of
Windows. This computer may require upgraded
and/or separately purchased hardware, drivers
and/or software to take full advantage of
Windows functionality. Go to
http://www.microsoft.com for details.
About This Book
WARNING! Text set o in this manner indicates that failure to follow directions could result in bodily harm or
loss of life.
CAUTION: Text set o in this manner indicates that failure to follow directions could result in damage to
equipment or loss of information.
NOTE: Text set o in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Product features ........................................................................................................................................... 1
Standard conguration features ........................................................................................................................... 1
Front panel components ........................................................................................................................................ 1
Rear panel components ......................................................................................................................................... 2
2 Illustrated parts catalog ................................................................................................................................ 3
Computer major components ................................................................................................................................ 3
Cables ..................................................................................................................................................................... 4
Misc parts ............................................................................................................................................................... 5
Drives ..................................................................................................................................................................... 6
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................... 7
Electrostatic discharge information ...................................................................................................................... 7
Generating static ................................................................................................................................. 7
Preventing electrostatic damage to equipment ................................................................................. 8
Personal grounding methods and equipment .................................................................................... 8
Grounding the work area ..................................................................................................................... 8
Recommended materials and equipment ........................................................................................... 9
Operating guidelines .............................................................................................................................................. 9
Routine care ......................................................................................................................................................... 10
General cleaning safety precautions ................................................................................................ 10
Cleaning the computer case .............................................................................................................. 10
Cleaning the keyboard ....................................................................................................................... 10
Cleaning the monitor ......................................................................................................................... 11
Cleaning the mouse ........................................................................................................................... 11
Service considerations ......................................................................................................................................... 11
Tools and software requirements ..................................................................................................... 11
Screws ............................................................................................................................................... 11
Cables and connectors ...................................................................................................................... 12
Hard Drives ........................................................................................................................................ 12
Lithium coin cell battery .................................................................................................................... 12
SATA hard drives .................................................................................................................................................. 13
SMART ATA drives ................................................................................................................................................ 13
4 Removal and replacement procedures: Small Form Factor .............................................................................. 14
Preparation for disassembly ............................................................................................................................... 14
v
Access panel ......................................................................................................................................................... 15
Expansion card ..................................................................................................................................................... 16
Front bezel ........................................................................................................................................................... 20
Optical drive bezel blank ..................................................................................................................................... 21
Fan duct ................................................................................................................................................................ 22
Drives ................................................................................................................................................................... 23
Drive positions ................................................................................................................................... 24
Optical drive ....................................................................................................................................... 24
Hard drive .......................................................................................................................................... 26
Memory ................................................................................................................................................................ 28
DIMMs ................................................................................................................................................ 28
DDR4-SDRAM DIMMs ......................................................................................................................... 28
Populating DIMM sockets .................................................................................................................. 28
Removing and installing DIMMs ........................................................................................................ 29
Fan sink ................................................................................................................................................................ 31
Processor ............................................................................................................................................................. 32
Fan ........................................................................................................................................................................ 33
Power supply ....................................................................................................................................................... 34
System board ....................................................................................................................................................... 36
System board callouts ....................................................................................................................... 38
5 Computer Setup (F10) Utility ........................................................................................................................ 39
Computer Setup (F10) Utilities ............................................................................................................................ 39
Using Computer Setup (F10) Utilities ................................................................................................ 39
Computer Setup–Main ....................................................................................................................... 41
Computer Setup—Security ............................................................................................................... 43
Computer Setup—Advanced ............................................................................................................. 45
Recovering the Conguration Settings ............................................................................................................... 50
6 Troubleshooting without diagnostics ............................................................................................................ 51
Safety and comfort .............................................................................................................................................. 51
Before you call for technical support .................................................................................................................. 51
Helpful hints ........................................................................................................................................................ 52
Solving general problems .................................................................................................................................... 53
Solving power problems ...................................................................................................................................... 57
Solving hard drive problems ................................................................................................................................ 58
Solving media card reader problems ................................................................................................................... 60
Solving display problems .................................................................................................................................... 61
Solving audio problems ....................................................................................................................................... 65
Solving printer problems ..................................................................................................................................... 67
Solving keyboard and mouse problems .............................................................................................................. 68
vi
Solving Hardware Installation Problems ............................................................................................................. 69
Solving Network Problems .................................................................................................................................. 71
Solving memory problems .................................................................................................................................. 74
Solving USB ash drive problems ........................................................................................................................ 75
Solving front panel component problems .......................................................................................................... 76
Solving Internet access problems ....................................................................................................................... 76
Solving software problems .................................................................................................................................. 78
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 79
POST numeric codes and text messages ............................................................................................................. 79
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 84
8 Password security and resetting CMOS .......................................................................................................... 86
Resetting CMOS and/or the password jumper .................................................................................................... 87
Changing a Setup or Power-On password ........................................................................................................... 88
Deleting a Setup or Power-On password ............................................................................................................ 89
9 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 90
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 90
10 System backup and recovery ...................................................................................................................... 92
Backing up, restoring, and recovering in Windows 10 ........................................................................................ 92
Creating recovery media and backups .............................................................................................. 92
Creating HP Recovery media (select products only) ...................................................... 92
Using Windows tools ......................................................................................................................... 93
Restore and recovery ........................................................................................................................ 93
Recovering using HP Recovery Manager ........................................................................ 94
What you need to know before you get started .......................................... 94
Using the HP Recovery partition (select products only) .............................. 95
Using HP Recovery media to recover ........................................................... 95
Changing the computer boot order .............................................................. 95
Removing the HP Recovery partition (select products only) ....................... 95
Backing up, restoring, and recovering in Windows 7 .......................................................................................... 96
Creating recovery media ................................................................................................................... 96
Creating recovery media using HP Recovery Manager (select models only) ................. 97
Creating recovery discs with HP Recovery Disc Creator (select models only) ............... 98
Creating recovery discs ................................................................................ 98
Backing up your information .......................................................................................... 98
System Restore ................................................................................................................................. 99
System Recovery ............................................................................................................................... 99
vii
System Recovery when Windows is responding .......................................................... 100
System Recovery when Windows is not responding .................................................... 100
System Recovery using recovery media (select models only) ..................................... 101
Using HP Recovery Disc operating system discs (select models only) ........................ 101
Appendix A Battery replacement ................................................................................................................... 103
Appendix B Statement of Volatility ................................................................................................................ 106
Appendix C Power cord set requirements ........................................................................................................ 107
General requirements ........................................................................................................................................ 107
Japanese power cord requirements .................................................................................................................. 107
Country-specic requirements .......................................................................................................................... 108
Appendix D Specications ............................................................................................................................. 109
Index ........................................................................................................................................................... 110
viii
1 Product features
Standard conguration features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the slim optical drive bay.
Item Description Item Description
1 Microphone/headphone combo jack 4 Optical drive (optional)
2 USB 3.0 ports (2) 5 Power-on light
3 SD media card reader 6 Power button
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the computer and it is
displaying a diagnostic code. Refer to POST error messages and diagnostic front panel LEDs and audible codes on page 79 to interpret
the code.
Standard conguration features 1
Rear panel components
Item Component Item Component
1 RJ-45 network connector 6 USB 2.0 ports (4) (black)
2 USB 2.0 ports (black) 7 Line-out connector for powered audio
3 Security lock slot 8 Line-In audio connector (blue)
devices (green)
4 HDMI port 9 Power cord connector
5 VGA monitor connector
NOTE: When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and the
integrated graphics on the system board may be used at the same time. However, for such a conguration, only the display
connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
2 Chapter 1 Product features
2 Illustrated parts catalog
Computer major components
This chapter provides part information for all chassis.
Item Description
(1) Access panel
(2) Front bezel
(3) System board (includes replacement thermal material)
(4) Power supply, 180W
x
8-GB
4-GB
Memory modules (UDIMM, PC4-2133, 1.2V)
Computer major components 3
Cables
Item Description
2-GB
x
Intel Core i5 6500 (3.2-GHz, 6-MB L3 cache), 65W
Intel Core i3 6100 (3.7-GHz, 3-MB L3 cache), 65W
Intel Pentium G4400 (3.3-GHz, 3-MB L3 cache), 65W
Intel Celeron G3900 (2.8-GHz, 2-MB L3 cache), 65W
x
not illustrated
Processors (include replacement thermal material)
Item Description
(1) SATA data cable, 165 mm, 2 straight ends
(2) Hard drive power cable, 220 mm
(3) Optical drive power cable, 220 mm
4 Chapter 2 Illustrated parts catalog
Misc parts
Item Description
(1) Fan
(2) Fan duct
(3) Fan sink (includes replacement thermal material)
(4) GeForce GT 730 graphics card, 2 GB, DDR3, PCIe x8
(5) WLAN module (Intel Dual Band Wireless-AC 3168 802.11 ac 1x1 WiFi + BT 4.2 Combo Adapter)
(6) WLAN module adapter, PCIe card
(7) Wireless antenna
x
x
x
x
x
M.2 USB cable
Rubber feet
Optical drive bezel blank
Power cord
Mouse
Misc parts 5
Drives
Item Description
HP USB Antimicrobial
USB, optical
HP USB portia
x
USB, slim
USB, Essential
USB, unbranded, Katydid
x
not illustrated
Description
Hard drive
1 TB, 7200 rpm, 3.5 inch
500 GB, 7200 rpm, 3.5 inch
Keyboard
Solid-state drive
128-GB Solid-state Drive (SSD)
Optical drive
DVD±RW drive
DVD-ROM drive
x
not illustrated
6 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 how humidity aects the electrostatic voltage levels generated by dierent
activities. A product can be degraded by 700 volts.
●
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
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
Electrostatic discharge information 7
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-sensitive 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 containers.
●
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 snugly against bare skin. The ground cord must be
connected to the banana plug connector on the grounding mat or workstation and t snugly into it.
●
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, observe the following precautions:
●
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the
work surface and use 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.
8 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
Recommended materials and equipment
The following grounding equipment is recommended to prevent electrostatic damage:
●
Antistatic tape
●
Antistatic smocks, aprons, or sleeve protectors
●
Conductive bins and other assembly or soldering aids
●
Conductive foam
●
Conductive tabletop workstations with ground cords of one-megohm +/- 10% resistance
●
Static-dissipative table or oor mats with hard ties 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 9
●
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 10 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 the surface
with a cloth or swab dampened with clear water.
●
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed; alcohol will evaporate quickly
without leaving 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 10 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 10.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 10
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.
10 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
●
If you want to remove a key, use a specially designed key puller to prevent damage to the keys. This tool
is available through many electronics supply outlets.
CAUTION: Never remove a wide, level 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 then 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 towelette designed for cleaning monitors or with a clean cloth
moistened with water. 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 10.
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 10.
Service considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.
Tools and software requirements
To service the computer, you need the following:
●
Torx T-15 screwdriver
●
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●
Phillips #2 screwdriver
●
Diagnostics software
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.
Service considerations 11
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.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with general
household waste. In order to forward them for recycling or proper disposal, please use the public collection
system or return them to HP.
12 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation
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
SMART ATA drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for HP personal computers have
built-in drive failure prediction that warns the user or network administrator of an impending failure (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 13
4 Removal and replacement procedures:
Small Form Factor
Adherence to the procedures and precautions described in this chapter is essential for proper service. After
completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all
components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
Preparation for disassembly
WARNING! Voltage is always present on the system board when the computer is plugged into an active AC
outlet. To avoid possible personal injury and damage to the equipment the power cord should be
disconnected from the computer and/or the AC outlet before opening the computer.
See Routine care, SATA drive guidelines, and disassembly preparation on page 7 for initial safety procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, then turn o any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Turn o the computer before disconnecting any cables.
Regardless of the power-on state, voltage is always present on the system board as long as the system
is plugged into an active AC outlet. In some systems the cooling fan is on even when the computer is in
the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a
unit.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing. Keep all
screws with the removed components.
14 Chapter 4 Removal and replacement procedures: Small Form Factor
Access panel
1. Prepare the computer for disassembly (Preparation for disassembly on page 14).
2. Loosen the captive Phillips screw (1), lift the rear of the access panel upward (2), and then slide the
access o the computer (3).
To install the access panel, reverse the removal procedure.
Access panel 15
Expansion card
Description
Printer port, PCI card
GeForce GT 730 graphics card, 2 GB, DDR3, PCIe x8
Nvidia NVS 310 graphics card, 512 MB, DDR3, PCIe x16
Intel 802.11 a/b/g/n (2x2) + Bluetooth 4.0 Wireless NIC
Intel Dual Band Wireless 7265NV 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless 7265AN 802.11 a/b/g/n (2x2) Wireless NIC
Intel Dual Band Wireless-AC 3165
WLAN module adapter, PCIe card
Intel PRO/1000 single port GbE NIC, includes bracket
The computer has one PCI Express x1 expansion socket and one PCI Express x16 expansion socket.
NOTE: The PCI Express sockets support only low prole cards.
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express x16 socket.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for disassembly on page 14).
2. Remove the access panel (Access panel on page 15).
3. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
4. Rotate the slot cover release latch to the open position.
16 Chapter 4 Removal and replacement procedures: Small Form Factor
5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to
the expansion card.
a. If you are installing an expansion card in a vacant PCI Express x16 socket, remove the appropriate
expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the
inside of the chassis.
b. If you are installing an expansion card in a vacant PCI Express x1 socket, insert a atblade
screwdriver into the slots on the rear of expansion slot cover (1) and rock the slot cover back and
forth to break it free from the chassis (2).
Expansion card 17
c. If you are removing a PCI Express x1 card, hold the card at each end, and carefully rock it back and
forth until the connectors pull free from the socket. Pull the expansion card straight up from the
socket.
d. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion
socket away from the card and carefully rock the card back and forth until the connectors pull free
from the socket. Pull the expansion card straight up from the socket.
6. Store the removed card in anti-static packaging.
7. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot
cover for proper cooling of internal components during operation.
18 Chapter 4 Removal and replacement procedures: Small Form Factor
8. To install a new expansion card, hold the card just above the expansion socket on the system board then
move the card toward the rear of the chassis (1) so that the bracket on the card is aligned with the open
slot on the rear of the chassis. Press the card straight down into the expansion socket on the system
board (2).
NOTE: When installing an expansion card, press rmly on the card so that the whole connector seats
properly in the expansion card socket.
9. Rotate the slot cover retention latch back in place to secure the expansion card.
10. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if
needed.
11. Recongure the computer, if necessary.
Expansion card 19
Front bezel
1. Prepare the computer for disassembly (Preparation for disassembly on page 14).
2. Remove the access panel (Access panel on page 15).
3. Pull the three tabs upward (1), and then rotate the bezel o the computer (2).
To install the front bezel, reverse the removal procedure.
20 Chapter 4 Removal and replacement procedures: Small Form Factor
Optical drive bezel blank
On some models, there is a bezel blank covering the slim optical drive bay that needs to be removed before
installing an optical drive. To remove a bezel blank:
1. Remove the access panel (Access panel on page 15).
2. Remove the front bezel (Front bezel on page 20).
3. To remove a slim optical drive bezel blank, press inward on the two retaining tabs (1) and pull the blank
o the front bezel (2).
Optical drive bezel blank 21
Fan duct
The fan duct sits atop the fan sink and is secured to the fan sink with tabs.
1. Prepare the computer for disassembly (Preparation for disassembly on page 14).
2. Remove the access panel (Access panel on page 15).
3. Pull the tabs away from each other (1), and then lift the duct o the fan sink (2).
To install the fan duct, reverse the removal procedures.
22 Chapter 4 Removal and replacement procedures: Small Form Factor
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